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VM700T User Manual - Advanced Test Equipment Rentals

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1. In nvramO Executable Files Video Options Audio Video Camera Testing Compo Timing 7 nent Echo_Roundi ng Tele text j j j Video Previous Leav u N bred Options te Birec tory Note In the first Measure mode menu display the Video soft key is visible when Video Options are selected and the Video Options soft key is visible when Video is selected The Audio soft key is seen only if Audio Options are installed Figure 3 8 Typical Measure Mode menu choices VM700T Option 01 NTSC amp Option 11 PAL User Manual 3 21 Measure Mode Video Option Measurement Menu Operation Figure 3 8 shows the Measure mode menu with Video Options selected Notice that a directory for each installed Video option is displayed The option menu arrangement separates the option measurements so you can make a selection from the shorter list of measurements for a single option as illustrated in Figure 3 9 rather than all the possible option measurement choices Colorimetry Defects Detail Fixed Pattern Frequency Gamma Noise Response Geometry Shading Vertical Smeal Registration Video Previous Leave video Audio Diags options S Dar Direc tory Figure 3 9 Measure menu of Camera Video Option The menu choice of Previous Selection returns to th
2. Tektronix VM700T YEurement ser turbo Waveform Vector Picture Measure Auto SOURCE Freeze A B c Average Menu Help Configure Function Copy Select Line O Move o _ O Expand o EN No Filtering Slow clamp to 0 00 V at 6 63 us ynch r x s selected Display 15 05 dB Fun e Display Graticule PISFAIL POWER OVER TEMP p fro es Intensity ad CI p Figure 2 1 VM700T front panel Touch Screen The display CRT area of the VM700T is also a touch screen for user input The screen displays input waveform signals the digital vectorscope a low resolution television picture of the input signal graphic measurement displays and automatic measurement results Many operations are performed by selecting soft keys menu controlled touch screen controls at the bottom of the display when applicable selection values are changed by rotating the control knob VM700T Option 01 NTSC amp Option 11 PAL User Manual 2 1 Operating Basics Manual and Auto Operational Mode Buttons The top row of buttons shown in Figure 2 2 controls the operational modes the major functions The VM700T has five operational modes four manual modes and Auto mode The manual modes are Waveform Vector Picture and Measure The power on default mode is Waveform The manual modes perform the specified operation and provide a graphic display with digital readouts plus st
3. functions m they place graphic limit markers on the screen in measurements where applicable 2 28 VM700T Option 01 NTSC amp Option 11 PAL User Manual Configuring the VM700T Video Measurement Set m they appear on printouts from the Measurement Results directory when the measurement exceeds the limits The measurement limits file used by Measure mode is designated in the active file in the Video_Source Files directory Measurement Locations The file s in the Measurement Locations directory contain information used by Directory both Auto and Measure modes The measurement locations file for each channel is designated in the active file in the Video_Source Files directory For PAL the SIS Present parameter tells the measurement set whether Sound in Sync is present yes or absent no When SIS Present is yes measurements are made using Synchronous sampling The Measure mode parameter determines whether manual measurements are made with Asynchronous the default or Synchronous sampling NOTE Measure mode manual measurements normally use Asynchronous sampling Auto measurements always use Synchronous sampling Synchronous sampling is available for manual measurements in the case of very noisy signals negative going pulses or other conditions that prevent using Asynchronous sampling However Synchronous sampling cannot be used to measure VCR VTR devices The Line parameter contains the default line on whi
4. Power Fuse ON OFF Line voltage connector switch selector Figure 1 1 Rear panel fuse power connector ON OFF switch and Line selector Instruments are shipped with the power cord required for the country of destination Available power cord option information is given in Appendix A Specification on page A 7 Contact your Tektronix representative or local Tektronix field office for additional power cord information European power cord options A1 and A2 require an additional accessory for operation in the EU countries When the VM700T Video Measurement Set is ordered with either the A1 or the A2 power cord option the VM700T Power Line Conditioning accessory is also provided The Power Line Conditioner accessory to the VM700T assures that the VM700T meets the Line Harmonics requirements of the European Union when operated from a 230 Vac mains source The line conditioner is for use only with the VM700T when operating the VM700T from a 230 Vac mains source The Power Line Conditioner provides no benefit when the VM700T is operated from a 120 Vac mains 90 132 V source and should NOT be used NOTE The VM700T will not be damaged if operated from a 230 Vac mains source without the Power Line Conditioner connected to the power input VM700T Option 01 NTSC amp Option 11 PAL User Manual Installation Installing the Power Line The Power Line Conditioner can be used with either with a rackmounted Conditioner VM 700T or a sta
5. inline VM700T Option 01 NTSC amp Option 11 PAL User Manual A 9 Appendix A Specification A 10 VM700T Option 01 NTSC amp Option 11 PAL User Manual EA AAA IR Appendix B Performance Verification Self Diagnostics The Verification procedures in the this section are done with the covers on The procedures are used to verify the operation of the VM700T Video Measurement and to determine if there is a need for readjustment Performance of the Video Measurement Set to published specifications for measurement accuracy is verified by other methods during a factory calibration The measurement set is configured at the factory to bypass the diagnostics at power on to provide a quicker startup Refer to Setting the Power Up Mode on page 1 9 if you want to change the configuration to run the diagnostics at power on The diagnostic routines of the measurement set check the operation of the digital hardware Passing the diagnostics is part of the performance verification procedure Use the following procedure to force an auto reset All the diagnostics then run at power on regardless of the power on diagnostic configuration 1 Turn off the measurement set 2 Hold down the Menu button and use the front panel STBY ON switch to power on the instrument 3 After the instrument beeps twice release the Menu button The measure ment set displays the VM700T Startup Menu 4 Inthe menu use the control knob to select R INSTRUMEN
6. 2 8 Configure Files directory 1 12 Configuring the VM700T configuration 2 7 Connecting Printers 1 14 Connecting VM700T to a PC Terminal 25 pin cable 1 13 Connector Port O and Port 1 1 11 Connectors VGA 1 18 consecutive alarms 2 22 Contacting Tektronix x Control Knob 2 4 3 3 Control port 2 24 Copy button 2 4 Copy Port 2 16 Copy port 2 23 Creating and Deleting Files 2 11 Cursor Appearance 3 10 Cursors 3 4 3 10 Center Left Right 3 4 Cursors Stay On 3 6 Lock Left Right 3 5 Reset Cursors 3 6 Reset Diffs 3 6 cursors amplitude measurement 3 14 Center Right 3 13 frequency measurement 3 14 Lock Left 3 11 Lock Right 3 11 Index 1 Index rise time measurement 3 12 status lines 3 11 time measurement 3 11 D DC Coupling 3 8 Diagnostic Errors 2 27 Diagnostic Errors file 2 27 Diagnostics Selection 2 27 Diff Step Filter 3 8 Digital mode 2 9 directory 2 9 entering 2 10 leaving 2 10 Directory Structure 2 9 2 18 directory tree 2 9 Display 3 1 Display and Graticule Intensity 3 18 Display Intensity 2 4 3 4 Display Phase Angle 3 18 DTE to DCE cable 1 13 DTE to DTE cable 1 13 E editable files 2 11 creating 2 11 storage 2 11 supplied 2 11 editing a file 2 14 editing keyboard 2 14 EMC Compliance A 5 Enabling Disabling Logging 3 26 EPSON LQ 570 printer 1 14 Event Time 3 29 Exit a File Without Change 2 16 Expand 3 3 Expand Gain Range 3 3 Expand Ran
7. Select touch the Password file icon Type in the current password and press Done or Return 2 3 Touch the current password 4 Type in the new password up to 15 characters 5 Press Return or Done and select the Update amp Exit soft key to put the new password into effect or press Cancel or No Change Exit to keep the old password When the Password function is first enabled the default password is null no password is needed to Update amp Exit Rename Delete or Create a directory or file Once a password is set it will be requested when you attempt to Update Exit Rename Delete or Create a directory or file that is every time you change the contents of nonvolatile memory VM700T Option 01 NTSC amp Option 11 PAL User Manual 2 31 Configuring the VM700T Video Measurement Set Selected Measurements Directory Timed Events Directory 2 32 If the correct password is entered the requested action is completed The measurement set allows three unsuccessful attempts to enter a password before displaying the message No Password no access and canceling the requested action Changing the password to null has the same effect as disabling the Password function with the DIP switches File s in the Selected Measurements directory contain a list of all the measure ments Auto mode can perform They allow you to select a subset of measure ments for the measurement set to perform The current Selecte
8. VM700T Option 01 NTSC amp Option 11 PAL User Manual Configuring the VM700T Video Measurement Set Please enter file name max 31 characters Test Set TEI EBEN EDER ERBE Back 30480400 EJ E E EA Ele a a Cancel set sed Space shit Figure 2 6 File naming keyboard EN A maximum of 31 characters are allowed in a file or directory name m Use only uppercase and lowercase letters numbers and the following punctuation characters _ underline dot minus sign plus sign colon and tilde in names Avoid using punctuation characters other than those mentioned above in a directory or file name m Multi line directories and file names can be entered using the RETURN key Touch RETURN on the touch screen keyboard to get to the second line m When the measurement set is in remote mode the return character becomes a tilde character for purposes of file name reference Thus a directory whose name is displayed as J OHN SMITH in the directory display becomes JOHN SMITH when referred to in a remote operation 3 After typing the name touch Done to complete the creation of the file or press Cancel to quit the process and not create the file VM700T Option 01 NTSC amp Option 11 PAL User Manual 2 13 Configuring the VM700T Video Measurement Set Editing Files To Delete a File Press the Delete soft key The measurement
9. and for the PAL vector display if Sound in Sync is ON or OFF Also for the PAL vector display there is a line added to the information on the right side of the display to indicate the V axis being displayed VM700T Option 01 NTSC amp Option 11 PAL User Manual 3 17 Vector Mode Control Knob Menu The control knob is used in conjunction with the Move Expand button to vary the display phase Angle and Gain and with the Display and Graticule buttons to set the display s Intensity When the Select Line button is pressed the control knob performs a digital line select function Display Phase Angle When entering Vector mode the default function of the control knob is to vary the display phase Angle the Move LED is on As a phase shifter the control knob rotates the display in one tenth degree increments as indicated by the Angle deg readout in the upper right corner of the display Expand Gain Range When the Expand button is pressed the control knob becomes a calibrated vector Gain control Expand is also temporarily selected when the screen is touched inside or near the graticule The Gain readout in the upper right corner of the display indicates the current Gain setting with a multiplier x and in dB The default Vector Gain is x1 000 0 000 dB and can be compressed or expanded from x0 250 12 195 dB to x50 000 34 055 dB in 0 023 dB increments Display and Graticule Intensity Display and graticule inten
10. to enter Whenever a directory is open another soft key labeled Leave Directory appears below the directory window Audio_Limi Audio_Sourc Audio_Source t e Identificati Files Files Auto Limi Camera Communi ca t Testing tion Files nr Setup c i Diagnostics Diagnostic nn Selection _Errors Echo Rounding Measure Lim Measure it ment Files Locations ae NTSC Files In nvram ConfigFiles Switch Print Leave NTSC PA Director L File Figure 2 4 Typical Configure directory To Leave a Directory Select the Leave Directory soft key This closes the current directory and opens the next higher directory in the directory structure When you open a directory a line appears below the directory window but above the soft keys indicating the path the directory or file location in the directory structure to the displayed directory For example if you were viewing the contents of the Measure_Limit Files directory the path line would read In nvram ConfigFiles Measure_Limit Files This indicates that the path from the root of the directory structure designated by the initial goes through directory nvram then through a subdirectory of nvram named ConfigFiles to the current directory which is a sub directory of ConfigFiles nam
11. 1 C or 1 8 F per 1 000 ft or 305 m above 5 000 ft or 1524 m altitude 20 C to 60 C 4 F to 140 F 30 C 54 F hr max gradient 20 to 80 relative humidity non condensing Max wet bulb temperature 29 4 C or 84 9 F derates relative humidity to 46 at 40 C or 104 F 8 to 80 relative humidity non condensing Max wet bulb temperature 40 C or 104 F derates relative humidity to 54 at 50 C or 122 F 2000 meters maximum Up to 40 000 ft 12 190 m Tektronix Class 5 Random Vibration Non operating Test For Laboratory Benchtop Instruments 10 minutes of vibration in each of the 3 major axes including the following levels 0 0175 g2 Hz from 5 to 100 Hz 3 dB octave from 100 to 200 Hz 0 00875 g2 Hz from 200 to 350 Hz 3 dB octave from 350 to 500 Hz 0 006132 at 500 Hz Overall level of 2 28 GRMS Tektronix Class 5 Random Vibration Operating Test For Laboratory Benchtop Instruments instrument meets performance specifications at these levels 10 minutes of vibration in each of the 3 major axes including the following levels 0 00015 g2 Hz from 5 to 350 Hz 3 dB octave from 350 to 500 Hz 0 000105 g2 Hz at 500 Hz Overall level of 0 27 GRMS Shock Tektronix Class 5 Shock Test 16 drops 4 axes 30 Grms 11mS half sine wave 1 See the VM700T Environmental Characteristics in Table A 6 for the operating temperature range of the VM700T operating without the Power Line Conditioner box
12. CPU AS circuit board The switch is located at rear outer corner of the CPU board when viewed facing the right side of instrument and looking down at the CPU board You can see this switch without removing the right side board retainer plate In Figure 2 13 the DIP switch is shown with switch 6 set to Open to enable the Password function The factory setting at shipment is with all switches set to the CLOSED position pushed in at top To enable Password set switch 6 third switch from the back of the DIP switch to Open When power is turned on VM700T Option 01 NTSC amp Option 11 PAL User Manual Configuring the VM700T Video Measurement Set again the Password function is enabled and you can set a password using the procedure given previously To either reset the password if it should become unknown for some reason or disable the function set position 6 of the DIP switch to the Closed position turn on the measurement set and let it complete its power on routine Closed Open Figure 2 13 DIP switch setting to enable Password The Password function is now disabled and the unknown password is visible in the Password file and can be edited To re enable Password turn off the measurement set and switch position 6 of the DIP switch to Open Replace the side panel and replace the holding screws for the panel To Change the Current Password 1
13. Line Identification 3 2 line number display 3 2 Line parameter 2 29 Line Voltage Range Switch 1 3 line voltage ranges 1 3 Load Time soft key 2 17 Lock Left 3 11 Lock Right 3 11 Locked to Source 2 21 Locked Waveform 3 8 Log port 2 24 logging enabling disabling 3 26 violated limits 3 26 logical ports 2 23 loop through inputs 2 5 Low pass Filter 3 8 Manual Adjust 3 9 Clamp Fast 3 9 Clamp Slow 3 9 DC Coupling 3 9 Duration 3 9 Level 3 9 Position 3 9 Manual Gain 3 7 Manual Overview ix Measure Limits File 2 21 Measure_Limit Files directory 2 28 measurement deselection 2 32 selection 2 32 Measurement Locations Defining 3 28 Measurement Locations directory 2 29 Measurement Results directory 2 29 measurement subset selecting 3 28 Measurements Location File 2 21 Menu button 2 3 VM700T Option 01 NTSC amp Option 11 PAL User Manual Mode analog 2 9 digital 2 9 Mode Buttons 2 2 Move 3 3 Move Expand 3 3 No Filter 3 8 Noise 0 dB 30 10 dB 3 7 noise reduction 3 19 0 Offset 3 7 Option 48 1 2 Option 74 1 2 Option Key 2 8 C 1 Option Power Cord Data A 7 option upgrade orders C 1 outputs 1 12 P Parallel Printer 2 24 Parallel Printer port 2 23 parallel printer port 1 17 parameter change in a file 2 15 Parity 2 27 password changing 2 31 default 2 31 enabling 2 30 resetting 2 30 setting 2 30 Password file 2 30 Phone number Tektr
14. Manual 2 23 Configuring the VM700T Video Measurement Set m Log the port to which error reports are sent Errors are logged when the measurement set running in Auto mode measures a parameter as being out of specification for more than the number of consecutive times designated in the active Auto Limits file As with Copy and Report the Log port may be either serial port or the parallel printer port Control the port used to connect a device to be controlled by the measure ment set A typical example is the ASG100 Audio Signal Generator under control of the measurement set running Function Key commands that generate test signals for the Option 40 audio measurements Either of the serial ports may be selected Neither the parallel printer port nor the GPIB port is selectable as a Control port Remote Control the port used to connect the measurement set to a modem terminal or PC for remote operation See the VM700T RS 232 Interface Programmer Manual for details on remote operation Refer to the VM700T GPIB Interface Programmer Manual when using the GPIB port for remote control Copy Report Log Format should be set to match to type of printer connected Either of the serial ports may be selected The parallel printer port is not selectable as a Remote Control port The first five groups of lines of the Communication Setup file after the title line assign a physical port and a format to each logical port Possible Port settings f
15. On keeps the cursor graphics up even when not in the Cursors submenu This is useful for keeping up sine wave measurement results which measure the amplitude frequency and offset of a sine wave in the center of the displayed area This choice allows selection of Sync source A B C External or Locked to Source sync mode Also selects Sound in Sync mode and genlock mode selection between synchronous asynchronous and free run modes If incorrectly set for the input signal the waveform display may be replaced by the message lt Loss of sync gt Pressing the Sync soft key brings up the following submenu Sync A B C sets the sync source to input channel A B or C and clears unhighlights the Locked to Source soft key NOTE If the Locked to Source soft key is not highlighted the sync source will NOT change with changing input selections The result is erratic behavior if the relative timing between the two inputs is not close External Sync sets the sync source to external sync This input cannot be displayed or measured Locked to Source when highlighted indicates that the sync source and the input source are the same Changing the signal source also switches the sync to the new signal source VM700T Option 01 NTSC amp Option 11 PAL User Manual Waveform Mode Sound in Sync PAL only not shown in Figure 3 2 enables the measurement set to lock or sync to signals that contain digitally encoded s
16. Reset Reset Cursors Left Left Right Right Cursors Diffs Stay On Sync Submenu I Sync Sync Sync External Locked to Change A B Cc Sync Source Sampling Extra Functions Submenu Gain Offset Manual Screen Precision Locked Fixed x 1 00 0 21 V Gain Memory Mode Waveform IRE Filter Select Submenu No Highpass Lowpass Diff Step LF Noise LF Noise LF Noise Filter Filter Filter Filter 7 5 kHz 10 kHz 15 kHz Clamp Couple Submenu Position Position Clamp Clamp DC Manual Backporch Sync Tip Slow Fast Coupling Adjust Manual Adjust Submenu Position Level Clamp Clamp DC Duration 6 635 ms 0 00 V Slow Fast Coupling 2 00 ms Figure 3 2 Waveform menu tree NOTE The LED in the Menu button is on when the Waveform menu is displayed If the Menu button is pressed when the Menu LED is on the menu is unselected removed from the display and the Menu LED goes off Lock Left Right locks the left or right vertical cursor to the waveform so that the cursor and waveform move together The cursor may be moved anywhere within a frame The Time from L to R reading indicates the time interval between the left solid cursor and
17. Serial Port Configuration 0 0 0 eee cece eee teen eens 1 10 RS 232C Interface Information 0 0 cee eee ee eee eee ee 1 11 Connecting Serial Printers 00 cece eens 1 14 Connecting an EPSON LQ Printer 0 0 eee ee ee ee eee 1 14 Connecting an Apple LaserWriter 00 0 e cece ee eee eee 1 15 Connecting a Serial Interface HP LaserJet DeskJet or ThinkJet 1 16 Connecting an ASCII Printer 2 0 2 eee eee eee eee ee eee 1 17 Connecting Parallel Printers 00 eee ee eee eee eee eee 1 17 Configuring the VM700T for Parallel Printers oooooo o oo 1 18 VGA Output Connector ecse in cece eee eee eee 1 18 Operating Basics Front Panel Operation 2 43 pa aaa seas 2 1 Touch Sereen eae ei A 2 1 Manual and Auto Operational Mode Buttons 0 2 2 Freeze Source Selection and Average Functions 2 3 SUpport Functions epi ra ann LE a 2 3 Control Knob 2 a En 2 4 Equipment Signal Sources Required o oooooococcoocconcoccoooo oo 2 5 Bandwidth esee ea ideas a ann 2 5 Connecting Inputs and Outputs 0 0 ee eee eee ee eee 2 5 Configuring the VM700T Video Measurement Set 6 2 7 Configure Op ratioiS esetre Pe eaga e sew even ache bias Bra 2 9 The Configure Directory Structure 0 0 cece eee eee eee ee 2 9 Supplied Directories and Files 1 2 2 0 0 ec eee eee eee eee eee 2 11 VM700T Option 01 NTSC amp Optio
18. VM700T Option 01 NTSC amp Option 11 PAL User Manual 1 17 Installation Configuring the VM700T for Parallel Printers In Configure mode set the Copy Format Report Format and Log Format in the Communication Setup file to what is appropriate for your parallel printer Set the Copy Port and Report Port to Parallel Parallel interface printers usually do not require special settings to operate with the VM700T VGA Output Connector 1 18 The output permits viewing the VM700T display on a VGA monitor The VGA Video output connector provides drive signals to provide a VGA copy of the display ofthe VM700T screen to an external monitor Use the Display and Graticule brightness controls for the VM700T display to set contrast between those two areas of the display Use the brightness and contrast controls of the attached monitor to set the display as needed for overall brightness and contrast of the external display VM700T Option 01 NTSC amp Option 11 PAL User Manual AA O O Operating Basics A Operating Basics This first part of this section provides information about operating the VM700T Video Measurement Set and describes the user interface features The second part describes how to configure the Video Measurement Set and the system file structure Front Panel Operation The VM700T Video Measurement Set front panel Figure 2 1 consists of a touch screen and a 20 button keypad with a control knob
19. and the GPIB Interface Option install the new hardware before upgrading the firmware Follow the installation instructions received with the firmware upgrade kit After that installation is completed use the following steps to upgrade the firmware VM700T Option 01 NTSC amp Option 11 PAL User Manual Appendix C Adding Options NOTE As a precaution against the loss of files you should back up the file system of the measurement set using the Tektronix VMBKUP software accessory It is not a requirement to do this only a precaution 1 Turn the measurement set on and wait for the system initialization to complete 2 Press the Configure button 3 Touch the Option Key soft key This will display the option key control menu see Figure C 2 4 Touch the New Option Key edit field 5 Type in the new option key the hyphens are not needed and lower case letters only are used Note the following information about typing in characters m Typing always inserts characters at the cursor position The cursor can be moved left or right by turning the control knob m To delete characters move the cursor to the right of the character to be deleted then press the Back Space key 6 When you have finished entering the new option key touch the Done soft key If you have entered a valid Option Key a list of the options authorized by the option key is displayed Verify that this is the set of options you wanted with your firm
20. connector on the printer plotter end Table 1 6 HP LaserJet cable connections Male DB 25 connector pin number Female DB 9 connector pin number HP printer end VM700T end 1 shield GND shield GND 3 RD 3 TD 2 TD 2 RD 7 signal GND 5 signal GND 20 DTR 8 CTS 1 The pin 20 to pin 8 connections is used for hardware flow control It can be omitted for XON XOFF flow control Connecting an ASCIl The VM700T can also be configured to operate with a generic serial ASCII Printer printer In the Communication Setup file set the Report Format and Log Format to ASCII Printer A generic ASCII printer is assumed to only print text graphic functions are not supported NOTE When Copy Format is set to ASCII Printer the Copy function is disabled in Waveform Vector Picture and Measure modes only the text from Auto mode text from Measurement Results files in Configure mode and the Print File soft key function in Configure mode are enabled Connecting Parallel Printers The printer port of the VM700T is a Centronics compatible parallel printer connection A standard parallel printer connector with a DB25 pin connector on the VM700T end and a Centronics parallel printer connector on the printer end is needed WARNING The VM700T and any printers modems or monitors connected to the VM700T must be properly grounded to prevent possible damage to the internal circuitry of the VM700T Video Measurement Set A
21. front panel controls or by using one of the rear panel RS 232C ports or the GPIB port if Option 48 is installed to send it commands The measurement set can be operated as an NTSC standard instrument Option 01 a PAL standard instrument Option 11 or as a dual standard instrument when both options are included The measurement set functions as a waveform monitor when its Waveform front panel button is pressed Waveform monitor operation is described Waveform Mode on page 3 1 The measurement set functions as a vectorscope when its Vector front panel button is pressed Vectorscope operation is described in Vector Mode on page 3 17 When the Measure front panel button is pressed a list of available measurements is displayed A general description of Measure mode operation is given in Measure Mode on page 3 21 Detailed information about individual measure ments is included in the VM700T Option 01 NTSC Measurements User Manual and the VM700T Option 11 PAL Measurement User Manual Consult either of those manuals for more information about individual measurements Measure ment provided with additional installed options are described in the user manuals supplied for the options When the Picture front panel button is pressed the VM700T functions as a low resolution picture monitor This display is to assist you in identifying the input source for other operational modes Picture mode operation is described in Picture Mode on page 3 23
22. generator than live video You can also select Freeze to stabilize the signal VM700T Option 01 NTSC amp Option 11 PAL User Manual 3 11 Waveform Mode 3 12 Note that the measurement set bandwidth limits the signal to 6 MHz To accurately display rise times of signals with significant frequency components between 5 MHz and 6 MHz select Precision mode To Use Cursors to Measure a Rise or Fall Time First use the control knob and the Vertical Horizontal buttons to position the leading edge of a sync pulse in the center of the screen and then expand the sync edge to fill about 80 of the screen Select the Reset Cursors soft key to center the cursors reset the amplitude reference markers and turn off any previously selected cursor Lock soft keys Attach the left amplitude reference marker to a stable spot on the blanking level prior to the leading edge of sync by moving the waveform to the right until the blanking level reaches the cursor This establishes the 100 point of sync Then attach the right amplitude reference marker to a stable spot on the sync tip by moving the waveform to the left until the sync tip reaches the cursor This establishes the 0 point of sync Live video may require moving the sync edge a little further in both directions to find an average or stable level for the 100 and 0 points When the sync edge is now moved past the cursors the point readout is calibrated and indicates the sync edge point tha
23. half the bar amplitude If part of the waveform preceding the start pulse is more than one half the bar amplitude the encoded number is rejected Encoding always ends with a stop pulse whose trailing edge is at 57 us The start and stop pulses are not used in the encoding scheme There are a maximum of 14 pulses between the start pulse and end pulse which are used to represent a binary number The pulse following the start pulse is the least significant bit and the pulse preceding the stop pulse is the most significant bit VM700T Option 01 NTSC amp Option 11 PAL User Manual A AI Reference Waveform Mode Display Waveform Graticule This section describes the capabilities of the VM700T Video Measurement Set as a waveform monitor and how the user interface controls its operation It is divided into three topics m Display features discusses basic characteristics of a Waveform mode display m Menu contains information on all the functions and controls accessed through the Menu button m Select Line describes the operation of the digital line selection feature Figure 3 1 shows a typical Waveform display Refer to this figure as you read the descriptions that follow The Waveform mode can present a real time Waveform display with 30 updates per second when a video line or less is displayed With a greater number of lines a very full display or a display of VITS on the first field in a frame the display is slowed sli
24. or integration increases the time or difficulty of servicing the product THIS WARRANTY IS GIVEN BY TEKTRONIX IN LIEU OF ANY OTHER WARRANTIES EXPRESS OR IMPLIED TEKTRONIX AND ITS VENDORS DISCLAIM ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE TEKTRONIX RESPONSIBILITY TO REPAIR OR REPLACE DEFECTIVE PRODUCTS IS THE SOLE AND EXCLUSIVE REMEDY PROVIDED TO THE CUSTOMER FOR BREACH OF THIS WARRANTY TEKTRONIX AND ITS VENDORS WILL NOT BE LIABLE FOR ANY INDIRECT SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES IRRESPECTIVE OF WHETHER TEKTRONIX OR THE VENDOR HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES ANA AA Table of Contents General Safety Summary 0 cc cece cece cere cere ence cee vii Brelace sessed Sais eat A Die ee ix Contacting Tektronix 2 0 cece cece cee rennur eenn x Getting Started Getting Started ii a Rn 1 1 Installation 8 22 am 1 3 Power Requirements a Bee ae ira 1 3 Changing Line Voltage Range and Fuse 0 2 02 eee eee 1 3 Power COM unsere Gg Siw GEA Sey dads Be WO Goalie 1 3 Power Line Conditioner Accessory 00 eee eee eee ee eee ee 1 4 Installing the Power Line Conditioner 00000008 1 5 Power Up Diagnostics 0 eee eee eee ca 1 6 Calibrating the Touch Screen 0 eee ee eee ee eens 1 7 Setting the Power Up Mode 0 seen 1 9 Function Playback on Power Up 0 sce e eee eee eee ences 1 10
25. right dashed cursor The frequency reading is the reciprocal of the time 1 T and is useful when the cursors are aligned to exactly one period of a waveform The amplitude reference markers associated with the cursors are not displayed when both cursors are locked to the waveform VM700T Option 01 NTSC amp Option 11 PAL User Manual 3 5 Waveform Mode 3 6 Sync NOTE If you position the left solid cursor to the right of the right dashed cursor you will be measuring the time from one frame to the next Reset Cursors unlocks the left and right vertical cursors from the waveform and positions both at the center of the display The amplitude reference markers are also reset so moving the waveform to the 0 and 100 positions of the waveform again pushes the amplitude reference markers back to those positions on the waveform You can then adjust the cursor on the waveform to the point as indicated by the of waveform readout between the O and 100 points required for the cursor measurement for example 50 or 10 and 90 Reset Diffs resets the Vertical Delta readout to 0 0 at the current vertical position Any subsequent vertical displacement from the knob is displayed This capability is useful for measuring signal amplitudes The horizontal marker line across the middle of the active waveform area provides a useful reference level to align the waveform for voltage difference measurements Cursors Stay
26. scale are referred to as the status lines The first line of text displays the units for the horizontal graticule scale microseconds or nanoseconds This line also indicates when the measurement set is performing self calibration The second line gives the APL Average Picture Level and the on off status of Precision mode and Sound In Sync PAL only The third line shows the television standard in use the type of Filtering in effect or No Filtering if none is in effect the method of sampling in use Synchronous Asynchronous and the selected Sync source The fourth line describes the clamping status and which frames are currently selected Two additional lines appear with cursors showing the cursor measurements Any menu called up will appear below the status lines and will cause the status lines to move upward to make room for the menu selections Control Knob The control knob is used with the toggling Move Expand and Vertical Horizontal buttons to control waveform positioning and gain and with the Graticule and Display Intensity buttons to set the brightness of the display When the end of range for a control knob assignment is reached a slight clicking noise will be heard if the knob rotation is continued in the out of range direction Display and Graticule intensity adjustment is controlled by the knob only when either of those buttons is held When the intensity buttons are released the control knob assignment reverts back to the Move Exp
27. soft keys are available at the bottom of the Picture display m Default Bright Touch this soft key to return the picture display to the default brightness You can adjust the picture brightness by pressing and holding the front panel Display button and then turning the front panel knob m Default Contrast Touch this soft key to return the picture display to the default contrast You can adjust the picture contrast by pressing and holding the front panel Graticule button and then turning the front panel knob These additional soft keys are available with firmware version 2 10e and above m Center Picture Touch this soft key to vertically center the Large Picture display When you use the front panel knob to scroll to a video line that is off screen the picture display pans to display the selected line Use this soft key to recenter the picture display m Size lt picture size gt Touch this soft key to toggle the size of the picture display between Large and Small VM700T Option 01 NTSC amp Option 11 PAL User Manual 3 23 Picture Mode m Field lt field number gt Touch this soft key to toggle the picture display between Field 1 and Field 2 m Readouts lt state gt Touch this soft key to toggle the readout display between On and Off 3 24 VM700T Option 01 NTSC amp Option 11 PAL User Manual Auto Mode Auto Mode Display Measurement Identification Violated Limits Indication Auto mode of the VM700T V
28. sources are indicated by a lighted LED in the panel button For some modes an input source can be inverted This feature may be used to invert a positive sync video signal to obtain the correct polarity for measurement by the VM700T To invert a single source press and hold the source button approximately one second until the instrument beeps When a source is inverted the LED on the source button blinks To invert a second source and add it to another press and hold the normal non inverted source and while holding it quickly press and release the inverted source The LED on the inverted source will flash In Waveform and Vector modes an inverted source can be the sole input or it can be added to another input In Measure mode an inverted source can only be added to another source Average The Average button enables noise reduction averaging on the signal in Waveform Vector and Measure modes The amount of noise reduction up to 30 10 dB is set with the Noise soft keys The number of averages up to 256 is set with the Average Num soft keys Support Functions The third row down in the keypad contains support functions Menu Help Configure Function and Copy Turn any of these functions on by pressing the associated front panel button Of these Copy turns off either after the copy is sent or after pressing the Cancel soft key that appears in the Configure menu when a copy is pending Help is turned off by pressing the Help bu
29. specified channel When a color burst reference is set to a channel other than the source channel an additional readout is provided at the top of the vector display screen The timing difference between the two channels is provided in time and degrees The two channels must have a common burst reference to provide any useful information about the time difference between channels A typical readout is this case is ChA after ChB xx ns degrees xx where xx represents the measured timing difference Noise sets the amount of noise reduction in decibels when the Average button is pressed For PAL each V axis is averaged separately The higher the noise reduction requested the longer it takes to settle 75 Bar Cal Rotating the knob in Vector mode changes the gain or phase angle which can leave the VM700T uncalibrated for angle or amplitude Touching this soft key returns Vector mode to a default calibrated state with phase angle set to 0 0 degrees gain to 1 000 0 0 dB VM700T Option 01 NTSC amp Option 11 PAL User Manual 3 19 Vector Mode 3 20 Select Line In the Vector mode pressing the Select Line button changes the control knob function to digital line select and displays the following menu Field Toggle displays the system line in the other field For PAL if the current line is between 1 and 313 it adds 313 if the current line is between 314 and 625 1t subtracts 313 Find Colorbars searches from the sys
30. the file you want to print 2 Press the Print File soft key 3 Press the icon containing the name of the file you want to print To Stop File Printing 1 Press the Configure button twice 2 Touch the Cancel Copy soft key This soft key only appears when the Copy button LED is flashing Touching this soft key cancels printouts in progress and deletes all files queued for printing including printouts generated by pressing the Copy button or the Print File soft key To View the Contents of the Spooler 1 From the main Configure directory touch Leave Directory twice to move to the top directory window 2 Select the Spooler directory If any copies are pending they will appear as numbered files 3 Touch the icon representing the file to view it on the display The file cannot be edited but can be scrolled through using the control knob VM700T Option 01 NTSC amp Option 11 PAL User Manual Configuring the VM700T Video Measurement Set Setting the Internal Clock The Time function allows you to set the measurement set internal calendar and clock shown in Figure 2 7 to the current time and date The time and date are placed on all printouts generated by the measurement set Perform any or all the following steps to enter the correct time and date into your measurement set TUES Jan 30 17 44 58 2001 al gt reron ee Load Ti me Month Date Hour Minute Second Yea
31. the signals the VM700T outputs and the input signals required on all the active pins of the serial ports Pin 1 DCD Data Carrier Detect This signal typically comes from a modem and indicates that a phone connection is made Pin 2 RD Receive Data The VM700T receives data on this pin Pin 3 TD Transmit Data The VM700T transmits data on this pin Pin 4 DTR Data Terminal Ready This pin is always high when the VM700T is turned on Modems typically require this signal to be a high level or they won t answer the phone Pin 5 SG Signal Ground Pin 6 DSR unused in the VM700T Pin 7 RTS Request To Send data to the VM700T With hardware flow control CTS RTS selected normally RTS connects to the CTS line of a terminal and the line is active when the VM700T is ready to receive data When the receive buffers of the VM700T are nearing capacity RTS goes inactive indicating to the sending device to stop transmitting data With software flow control XON XOFF selected or None selected RTS is always active Pin 8 CTS Clear To Send With Flow Control CTS RTS selected the VM700T is enabled to transmit data by a high level on pin 8 and is disabled by a low level It is normally connected to the RTS line of a terminal With Flow Control None or XON XOFF selected the VM700T transmits data regardless of the CTS level VM700T Option 01 NTSC amp Option 11 PAL User Manual Installation
32. 1 2 3 4 as shown Figure 1 5 Touch screen calibration panel After the can press dots at all four corners have been touched a screen displaying the panel calibration factors is displayed as shown in Figure 1 6 From that screen you any key to return to the VM700T startup menu VM700T Option 01 NTSC amp Option 11 PAL User Manual Installation PANEL CALIBRATION VALUES XSCALE 471 XOFFSET 292 YSCALE 398 YOFFSET 231 Press Any Key to Continue Figure 1 6 Panel calibration values Setting the Power Up You may configure the instrument to always skip the powerup diagnostics or to Mode always run them at powerup Use the following procedure to access the diagnostics menus and make changes to the diagnostic power on mode 1 Press and hold in the Menu button while turning on the power to display the VM700T Startup menu shown previously in Figure 1 3 2 Inthe VM700T Startup menu highlight the C in the Diagnostic Configura tion line and press the Select Line button This brings up the Diagnostics Configuration menu shown in Figure 1 7 Low Level Diagnostic Interface knob moves cursor Select Line inputs selection DIAGNOSTICS CONFIGURATION MENU Key Selection Po Set Diagnostics POWERUP MODE lo Set Diagnostics INTENSITIES Bo Set Low Level Diagnostics BAUD RATE Reprint Abort Menu Input your selection Figure 1 7 Diagnostic configuration menu
33. 3 In Diagnostic configuration menu highlight and select P in the Set Diagnos tics Powerup Mode line to bring up the powerup mode choices shown in Figure 1 8 In the Set Diagnostics Powerup Mode menu highlight and select Q to have the instrument skip diagnostics on power up or highlight and select P to have the VM700T Option 01 NTSC amp Option 11 PAL User Manual 1 9 Installation Function Playback on Power Up instrument run the diagnostics on power up The remaining choices are used in diagnostic testing in manufacturing and factory service When a selection is made the choice is stored in the diagnostics NVRAM and the Diagnostics Configuration menu returns At this point the quickest way to start the instru ment for normal operation is to turn off the VM700T and turn it back on again Low Level Diagnostic Interface knob moves cursor Select Line inputs selection SET DIAGNOSTICS POWERUP MODE Select a Powerup Mode from the list below The mode selected will be stored in Diag NVRAM and will be effective for NORMAL powerups ie Boot Switches in NORMAL position The current Powerup Mode setting is STARTUP MENU Key Selection Q QUICK START Skip Diagnostics start Instrument M STARTUP MENO wenns Goto VM700T Startup Menu Ps POWERUP DIAGS Do Diagnostics start Instrument BS LOW LEVEL DI AGS LOOP Loop on Low Level Diagnostics H HIGH LEVEL DI AGS LOOP Loop on High Level Diagnosti
34. 5 Vp p terminated in 75 Q Coupling DC AC Clamp Clamp Independently programmable on each channel as follows 1 Timing with respect to sync 2 Clamp pulse width 3 Clamp reference level 4 Clamp time constant VM700T Option 01 NTSC amp Option 11 PAL User Manual A 1 Appendix A Specification Table A 1 Input characteristics cont Characteristic Hum Rejection Fast Slow External Sync Crosstalk Between Channels Residual Noise Level 0 to 5 MHz Table A 2 Digitizer Characteristic Distortions 2nd Harmonic Noise Anti aliasing filter attenuation At 7 16 MHz NTSC At 8 86 MHz PAL Table A 3 Synchronization Characteristic Performance requirement Greater than 24 dB Less than 1 dB Better than 80 dB with respect to 0 714 Vp p active video Performance requirement 35 dB or greater 40 dB or greater Performance requirement Supplemental information Provided through a rear panel input Greater than 70 dB isolation between channels Measured at F between A B C and EXT SYNC Supplemental information 70 dB or less with 2 5 MHz 1 dBfs signal 60 dBispus typical with 5 MHz 50 dBfs input Supplemental information Modes Video input or external Sound in syncs and PCM2 capable without jumper options Amplitudes Internal Minimum 14 dB with respect to 286 mV nominal sync amplitude Maximum 12 dB with r
35. A or equiva capability accurate to 1 Hz lent Television signal generator PAL full field and burst capa PAL test signal source Tektronix TSG 271 or equiva bility accurate to 1 Hz lent Coaxial cable BNC connectors Signal interconnections Tektronix part number 012 0074 00 75 Q impedance high quality noise free 1 meter length Termination 75 Q precision BNC connec Signal termination Tektronix part number tors 011 0102 01 1 The example amplitude calibrator requires a TEGAM TM500 or TM5000 series power module 2 The flatness accuracy required of the leveled sine wave generator is only to the bandwidth needed to perform the measurement set verification and adjustments It is not specified to be that flat over the entire bandwidth of the generator B 2 VM700T Option 01 NTSC amp Option 11 PAL User Manual Appendix B Performance Verification System Verification Procedures NOTE If the results yielded by the verification procedures in this section are within the limits specified further adjustment is not necessary and is not recommended Adjusting the measurement set unnecessarily for example to get a better reading on a calibration result that is within limits can introduce errors into a functional instrument Measure Squarewave This procedure checks the amplitude accuracy of the instrument An externally applied precision reference signal is used to check the complete signa
36. Advanced Test Equipment Rentals A ished 1981 www atecorp com 800 404 ATEC 2832 User Manual Tektronix VM700T Video Measurement Set Option 01 NTSC amp Option 11 PAL 070 9647 08 This document supports firmware version 2 10 and above www tektronix com Copyright O Tektronix Inc All rights reserved Licensed software products are owned by Tektronix or its suppliers and are protected by United States copyright laws and international treaty provisions Use duplication or disclosure by the Government is subject to restrictions as set forth in subparagraph c 1 ii of the Rights in Technical Data and Computer Software clause at DFARS 252 227 7013 or subparagraphs c 1 and 2 of the Commercial Computer Software Restricted Rights clause at FAR 52 227 19 as applicable Tektronix products are covered by U S and foreign patents issued and pending Information in this publication supercedes that in all previously published material Specifications and price change privileges reserved Tektronix Inc P O Box 500 Beaverton OR 97077 TEKTRONIX and TEK are registered trademarks of Tektronix Inc Portions of the software in this instrument are copyrighted by Stanford University WARRANTY Tektronix warrants that the products that it manufactures and sells will be free from defects in materials and workmanship for a period of one 1 year from the date of shipment If a product proves defective during this warranty pe
37. E If your measurement set has Option 1S installed you must set the measurement set to Analog Mode before you can access the configuration files or analog functions listed in this manual Configure mode like other modes may be selected at any time with the following exceptions when in remote and during function playback When the Configure button is pressed again to deselect Configure the measurement set returns to the mode or application for example measurement that was active when Configure was selected The remainder of this section is divided into two parts The first part describes the operations available in Configure mode it tells you how to create or delete files in a directory how to edit files and so on The second part describes the Configure mode directory structure and the files it contains Configure Operations This section covers basic information on how to traverse directories and edit files in Configure mode The Configure Directory After you press the Configure button and touch the Configure Files soft key the Structure measurement set displays the files and sub directories in the nvram Config Files directory see Figure 2 4 Files and directories are displayed as icons enclosing the file or directory name Directory icons consist of two overlapping rectangles file icons consist of single rectangles Below the directory display is the path line indicating the location of the displayed directory in the direc
38. European Communities Low Voltage Directive 73 23 EEC amended by 93 68 EEC EN61010 1 A2 1995 Safety Requirements for Electrical Equipment for Measurement Control and Laboratory Use ANSI ISA S82 02 01 Safety Standard for Electrical and Electronic Test Measuring Controlling and Related Equipment 1994 1EC1010 1 Safety Requirements for Electrical Equipment for Measurement Control and Laboratory Use Table A 9 Safety certification compliance Category Temperature operating Altitude maximum operating Relative Humidity maximum operating Equipment Type Safety Class Overvoltage Category Description 5 C to 50 C 2000 Meters 80 for temperatures up to 31 C decreasing linearly to 50 to at 40 C Test and Measuring Class as defined in IEC 1010 1 Annex H grounded product Mains Overvoltage Category as defined in IEC 1010 1 Annex J Local level mains appliances portable equipment Pollution Degree Pollution Degree 2 as defined in IEC 1010 1 Do not operate in environments where conductive pollutants may be present Note Rated for indoor use only Table A 10 Rear panel signal connectors Characteristic Port 0 and Port 1 Connectors Description DB 9 male connectors configured as RS 232C DTE ports to provide hardcopy output to serial printers and remote control GPIB Connector Option 48 Meets electrical specifications described in IEEE 488 for parallel GP
39. General Safety Summary To Avoid Fire or Personal Injury Review the following safety precautions to avoid injury and prevent damage to this product or any products connected to it Only qualified personnel should perform service procedures To avoid potential hazards use this product only as specified Use Proper Power Cord Use only the power cord specified for this product and certified for the country of use Use Proper Voltage Setting Before applying power ensure that the line selector is in the proper position for the power source being used Connect and Disconnect Properly Do not connect or disconnect probes or test leads while they are connected to a voltage source Ground the Product This product is grounded through the grounding conductor of the power cord To avoid electric shock the grounding conductor must be connected to earth ground Before making connections to the input or output terminals of the product ensure that the product is properly grounded Observe All Terminal Ratings To avoid fire or shock hazard observe all ratings and markings on the product Consult the product manual for further ratings information before making connections to the product Do not apply a potential to any terminal including the common terminal that exceeds the maximum rating of that terminal Do Not Operate Without Covers Do not operate this product with covers or panels removed Use Proper Fuse Use only the fuse type an
40. IB connectors VGA Connector 15 pin D type Outputs monochrome VGA signals Parallel Printer Connector Centronics compatible connector and signals Remote Contact Closure Relay Alarm Maximum Current Contacts are not debounced 50 mA A 6 VM700T Option 01 NTSC amp Option 11 PAL User Manual Appendix A Specification Table A 10 Rear panel signal connectors Cont Characteristic Description Maximum Voltage 30 VACrms or 30 VDC Control Logic set GRLY 1 closes the relay set GRLY 0 opens the relay CH A CHB CHC and Ext Sync BNC 75 Q Termination is required when not used as feed through signal path Feed Through Connectors Table A 11 Optional power cords Plug configuration Normal usage Option number North America Standard 125 V 15A Plug NEMA 5 15P Europe A1 230 V United Kingdom A21 230 V Australia A3 230 V North America A4 230 V Switzerland A5 230 V 1 European and United Kingdom power cord options A1 and A2 also require the VM700T Power Line Conditioner box for operation in EU countries The power line conditioner prevents harmonic emissions from the VM700T power supply from entering the commercial power mains VM700T Option 01 NTSC amp Option 11 PAL User Manual A 7 Appendix A Specification Optional Accessory Printer cable for Hewlett Packard LaserJet ThinkJet or DeskJet with serial interface Tektronix part number 012 1285 00 Power Li
41. Index Index Symbols 1 11 H Display 3 4 Numbers 20T value 2 29 5 Riser Chroma Amplitude 2 29 A Accept Input softkey 2 15 Accessories Power Line Conditioner 1 4 activating an option C 2 Address Tektronix x Alarm Limit 3 25 alarm limits 2 22 amplitude measurement 3 14 amplitude reference markers 3 10 Analog mode 2 9 Apple LaserWriter 1 15 ASCII Printer 1 17 Auto Alarm Limit 3 25 Caution Limit 3 25 Comments Column 3 26 logging 3 26 Measurement Identification 3 25 Timed Events 3 26 Violated Limits Indication 3 25 Violated Limits Logging 3 26 Auto Limit File lines 2 22 title 2 22 Auto Limits File 2 21 Auto Mode Configuration 3 26 Remote Operation 3 26 Auto mode display 3 25 Auto Sync Source 2 21 Auto_Limit Files 3 27 Auto_Limit Files directory 2 22 Average 2 3 3 17 Bandwidth 2 5 Baud Rate 2 26 VM700T Option 01 NTSC amp Option 11 PAL User Manual C calendar and clock 2 17 Cancel Copy 2 8 Cancel Copy soft key 2 16 Carrier Detect 2 27 Caution Limit 3 25 Centronics Printer Port 1 17 Centronics compatible printer 2 23 Changing a Caution limit 3 27 Changing a File Parameter 2 16 changing a port configuration parameter 2 27 changing a port or format assignment 2 25 Changing an Alarm limit 3 27 Character Size 2 26 Clamp Couple 3 8 Clamp Fast 3 8 Clamp Slow 3 8 clock 2 8 Communication Setup file 1 12 2 23 Configure button 2 4 2 7 Configure Files
42. Limits may be set inside Caution Limits but then only Alarm Limit violations will be flagged The limit file used by Auto mode is designated in the configuration file Channel_A B C Configuration for each channel A file from the Selected Measurements directory is used in conjunction with a file from the Auto_Limit Files directory to provide Auto mode with a list of desired measurements and limits for those measurements You can specify the zero carrier pulse location and or whether or not you wish to use it as a reference and define the locations of test signals on VITS lines or in a full field signal within a file in the Measurement Locations directory The files found in this directory contain information used by both Auto and Measure modes The measurement locations file used by Auto and Measure modes is designated in the configuration file Channel_A B C Configuration for each channel The System Default file is the only file available for selection when the instrument is shipped Any additional files you create to customize your applications will be available for selection The files used to designate which subset of measurements you wish Auto mode to perform are found in the Selected Measurements directory The files found in this directory contain a list of all the measurements Auto mode can perform The purpose of the files is to allow you to select a subset of measurements you wish to perform from the entire list of measurements ava
43. Pin 9 RI Unused Table 1 2 gives cable configurations that should work in most instances The pin numbers given for the Terminal DTE are the most common locations for the corresponding signals on DB 9 and DB 25 connectors Note that there is considerable deviation from this common configuration and not all devices use control lines in the manner described under this topic Refer to the instruc tion manual of the equipment you are connecting to the VM700T to determine exactly how it should be connected Note also that both ends of the DTE to DTE cable are typically female connec tors The DTE to DCE cable is female on the VM700T DTE end and typically male on the modem DCE end Table 1 2 Typical VM700T RS 232C cable connections VM700T DTE to terminal DTE null modem VM700T pin no DB 9 2 RD 3 TD 4 DTR 5 Chassis GND 7 RTS 8 CTS vmzooT DTE to modem DCE Terminal pin no Terminal pin no VM700T pin no Nodem pin no Modem pin no DB 9 DB 25 DB 9 DB 9 DB 25 1 DCD 1 6 DSR 8 DCD 3 TD 2 TD 2 RD 2 3 RD 2 RD 3 RD 3 TD 3 2 TD 1 DCD 8 DCD 6 DSR 4 DTR 4 20 DTR 5 Chassis GND 7 SG 5 Chassis GND 5 7 SG 8 CTS 5 CTS 7 RTS 7 4 RTS 7 RTS 4 RTS 8 CTS 8 5 CTS Table 1 3 shows the minimum pin configuration for a cable connecting the 9 pin male connector of the VM700T to a 25 pin connector on a PC or terminal R
44. SC amp Option 11 PAL User Manual Configuring the VM700T Video Measurement Set Video_Source Files Files in the Video_Source Files directory tell the measurement set where to find Directory important parameter information These files contain the following entries Auto Limits File the file in the Auto_Limit directory that specifies the limits used for Auto mode measurements Measure Limits File the file in the Measure_Limits directory that specifies the limits used for Measure mode measurements Measurements Location File the name of the file in the Measure ments_Location directory that specifies the default frame lines and intra line positions from which to make measurements as well as other measurement related information m Selected Measurements File the file in the Selected Measurements directory that defines which measurements are to be monitored measure ments that potentially generate Caution and Alarm messages when the measurement set is in Auto mode m Auto Sync Source specifies the synchronization source for Auto mode Possible values are Channel A Channel B Channel C External or Locked to Source The first four use the specified sources for synchronization Locked to Source uses whichever source is selected when the measurement set goes into Auto mode Source Name specifies text to be printed across the top of printouts generated by Auto mode or the Copy button This text may be set to any appr
45. T RUN MODES and press the Select Line button A second diagnostic menu is then displayed 5 In this menu select A AUTO RESET and press the Select Line button This runs the full set of internal diagnostics Check that all tests pass as they run After the diagnostics complete the measurement set should initialize in the Waveform mode Check that all tests pass as they run If a test fails refer to the VM700T Video Measurement Set Service Manual for further actions you can take to determine which board or boards may be at fault To check for soft errors possible intermittent operation enter the Configure files and set the Diagnostic Selection file to run all diagnostics If you see a Diagnostic Errors file either use the Delete soft key to erase it if it is not needed or check it for the last error saved and note its time for reference Select Measure mode by pressing the Measure hard key and set the diagnostics to loop continuously DiagsLoop VM700T Option 01 NTSC amp Option 11 PAL User Manual B 1 Appendix B Performance Verification NOTE The measurement set requires a 20 minute warm up period before starting the verification procedures Run the diagnostics while you let the measurement set warm up for 20 minutes before starting the verification checks The diagnostics can be looped as long as desired to more rigorously check for intermittent errors Use the Abort Diag nostic soft key to halt diagnost
46. Table 1 3 VM700T 9 pin to PC 25 pin null modem cable for remote Control u a ets des 1 13 Table 1 4 Epson LQ serial cable connections oo ooooooo o 1 15 Table 1 5 Apple LaserWriter serial connections o oo ooooo 1 16 Table 1 6 HP LaserJet cable connections ooooooommmm o o 1 17 Table A 1 Input characteristics oo ooooocooommmoommo 9 m o A 1 Tables A 2Digitizen is bak eons eesti 2 Hh S el ae R as A 2 Table A 3 Synchronization o ooooococcoocncorcoccocacc noo A 2 Table A 4 Physical characteristics 0 0 0 cece cee eee eee A 3 Table A 5 Power requirements 1 1 0 0 cece cece eee A 3 Table A 6 Environmental specification 0 0 00 0008 A 4 Table A 7 EMC compliance 1 0 cee A 5 Table A 8 Safety standards see age a CAGE Reg CEASE AS A 6 Table A 9 Safety certification compliance 000 0008 A 6 Table A 10 Rear panel signal connectors 0 000000 e eee A 6 Table A 11 Optional power cords 0 cece cece eee A 7 Table A 12 AC Electrical Characteristics ooooooooommo o A 8 Table A 13 Power Line Conditioner Mechanical Characteristics A 8 Table A 14 Power Line Conditioner Environmental Characteristics A 9 Table B 1 Test equipment required for verification B 2 VM700T Option 01 NTSC amp Option 11 PAL User Manual v Table of Contents vi VM700T Option 01 NTSC amp Option 11 PAL User Manual AA AAA IA
47. To speed up the response to the filter change toggle the Average hard key off Turn averaging on again after the display has re stabilized Check that the amplitude is within 0 5 of the reference level stored in step 4 Change the TV standard parameter to PAL by pressing the XY Arrow hard key Change the leveled sine wave generator frequency to 4 43 MHz do not change the output level To speed up the response to the frequency change toggle the Average hard key off Turn averaging on again after the display has re stabilized Check that the amplitude is within 0 5 of the reference level stored in step 4 Repeats steps 1 through 7 for channel B and channel C VM700T Option 01 NTSC amp Option 11 PAL User Manual B 5 Appendix B Performance Verification B 6 Measure the Burst Frequency 26 Disconnect the test equipment from the measurement set NOTE If the response on channel A is out of limits your measurement set may need readjustment of the system response Refer your instrument to a qualified service person If either channel B or channel C does not pass but channel A does the Analog input board may need replacement Check with your nearest Tektronix represen tative or factory service for assistance and board replacement information This procedure checks the calibration of the internal oscillator using a signal source of known frequency NOTE To successfully run this procedure the internal
48. When the Auto front panel button is pressed the VM700T cycles through the selected set of automated measurements Refer to page 3 25 for a general description of Auto mode operation Detailed information about individual auto mode measurements is included in the VM700T Option 01 NTSC Measure ments User Manual and the VM700T Option 11 PAL Measurements User Manual Consult either of those manuals for more information about individual measurements VM700T Option 01 NTSC amp Option 11 PAL User Manual 1 1 Getting Started 1 2 The VM700T Video Measurement Set features the ability to record sequences of operations functions and execute them by touching a soft key on the front panel See the VM700T RS 232 Interface Programmer Manual for details on how to record edit and execute functions The functions can also be called remotely once they have been created The measurement set is capable of being remotely controlled You can operate the instrument using a computer or terminal connected through a rear panel RS 232C port See the VM700T RS 232 Interface Programmer Manual for information on remote programming and operation If Option 48 the GPIB interface is also installed the measurement set may be operated remotely through the GPIB port See the VM700T Option 48 GPIB Interface Programmer Manual for information about GPIB remote control An added display option is available for the VM700T Option 74 provides a display module with a w
49. a clicking sound but the screen is not changed m Ifthe item that you touch is to be edited alphabetically a keyboard appears on the lower half of the display screen see Figure 2 6 m If you are to choose a new value for the item that you touch from a limited number of choices such as the Communication Setup file a box appears around the element to be edited You can then cycle through the available choices by turning the control knob Refer to Communication Setup File on page 2 23 for an example of this type of editing m If you are editing a file that specifies whether elements are selected or unselected such as the Diagnostic Selections file you edit the file by touching the screen next to an element to place the element in the selected or unselected group Refer to Diagnostics Selection File on page 2 27 for an example of this type of editing VM700T Option 01 NTSC amp Option 11 PAL User Manual Configuring the VM700T Video Measurement Set NOTE The first line of a file is often a title line You may edit this line to provide a more descriptive identifier about the content or purpose of the file you are creating Editing the title line of a file does not change the file name To Change a Text Line Touch the line A box appears around the line and the soft key keyboard appears below the directory window see Figure 2 6 1 Type the new text keeping the following things in mind m Typing always inserts cha
50. al Port 0 or Serial Port 1 as appropriate for the printer that will be used Copy Port 1 Port Serial Port 1 Protocol None Format PostScript Baud Rate 9600 Report Flow Control XON XOFF Port Serial Port 1 Character Size 8 Format PostScript Parity None Log Reset Character D Port None Carrier Detect Disabled Format PostScript Remote Port None Serial Port 0 Setting up the LaserWriter with Serial Interface Set the rear panel switch on the LaserWriter to the 9600 position The serial cable connecting the VM700T and the LaserWriter should be wired as described in Table 1 5 The cable must have a female DB 9 connector on the VM 700T end and a male DB 25 connector on the LaserWriter end VM700T Option 01 NTSC amp Option 11 PAL User Manual 1 15 Installation 1 16 Connecting a Serial Interface HP LaserJet DeskJet or ThinkJet Table 1 5 Apple LaserWriter serial connections Male DB 25 connector pin number Apple LaserWriter end 1 shield GND 3 RD 2 TD 5 CTS 4 RTS 7 signal GND Female DB 9 connector pin number VM700T end shield GND 3 TD 2 RD 7 RTS 8 CTS 5 signal GND In Configure mode set the Copy Format Report Format and Log Format in the Communication Setup file to HP LaserJet HP DeskJet or HP ThinkJet as appropriate for your printer plotter Set the Copy Port and Report Port to Serial Port 0 Serial Port 1 or Parallel Printer as needed for your appli
51. amed in the Timed Events file For function events the measurement set looks for the function named in the Timed Events file in directory nvram FunctionKeys Timed Functions The function selected as a Timed function must reside in the Timed Functions subdirectory displayed by the Function Keys soft key in the Configure menu The parameters for the Auto report selected measurement limits measurement locations etc are specified by the selected file in the Source_Selection Video file When a report time occurs the measurement set screen shows the Timed Report display unless the measurement set is in remote mode see note below The Timed Report display includes a status line showing the channel and the Selected Measurements file in use a soft key labeled Cancel Report and the measure ments being made Pressing the Cancel Report soft key halts the timed report execution Once the report is complete the measurement set returns to the mode it was in when the report began The Copy button flashes until the report is either printed or canceled with the Cancel Copy soft key in the initial Configure menu When a function time occurs the measurement set executes the function When the function has been executed the measurement set remains in the state specified by the body of the function it does not return to the state it was in when function execution began VM700T Option 01 NTSC amp Option 11 PAL User Manual 2 33 Configuring th
52. and positioning function Move Expand When entering Waveform mode the control knob s default function is Horizontal Move positions left and right When Expand is selected by pressing the Move Expand button the waveform expands around the center of the screen Expand is also selected when the active area of the screen is touched The active area of the screen is that area above the horizontal graticule scale line The point touched becomes the point about which the display expands To move or expand the display vertically be sure the direction button indicator is Vertical and then rotate the control knob Note that selecting Expand with the button is only necessary for one handed operation Using the two hand touch and zoom method is much easier The touch and zoom method makes use of the switching to Expand from Move feature Leave the Move Expand choice in Move and select the direction either vertical or horizontal Move the waveform to the point of interest then touch the screen at the point about which you wish the waveform to expand or compress The function of the control knob switches to Expand while the screen is touched and defaults back to Move when you lift your finger from the screen Expand Gain Range The horizontal gain of the default 1H Waveform display can be continuously compressed or expanded to display from 10 ns to 704 us 11 lines across the screen Vertically the Volts scale ranges from 5 mV full scal
53. ars 3 20 Menu 3 18 Noise 3 19 VM700T Option 01 NTSC amp Option 11 PAL User Manual V Axis Switch PAL only 3 18 Vector Line 3 20 Vector Gain 3 18 Vector mode display 3 17 VGA monitor connector 1 18 Video Source 2 18 Video Source Identification Number inserting 2 36 Violated Limits 3 25 Volts scale 3 3 W Waveform 3 1 waveform expansion 2 4 Waveform mode menu 3 4 Waveform Positioning 2 4 Web site address Tektronix x Z zero carrier pulse 3 28 Index 5 Index Index 6 VM700T Option 01 NTSC amp Option 11 PAL User Manual
54. artup menu use the large control knob to highlight the T in the Calibrate Touch Panel Interface line 5 Press the Select Line button to make the selection to calibrate The first touch screen calibration instructions are then displayed as shown in Figure 1 4 VM700T Option 01 NTSC amp Option 11 PAL User Manual 1 7 Installation 1 8 6 Follow the written directions Pressing AUTO aborts the calibration process and returns you to the VM700T startup menu Pressing any other button the setting in NVRAM and brings up the next touch screen calibration stores menu After making the adjustment requested and storing the current setting a second set of instructions are displayed as shown in Figure 1 5 Follow the directions given in the screen TOUCH PANEL INTERFACE CAL DISPLAY Use the knob to adjust horizontal position and squareness of the screen border lines Press AUTO button to abort or any othel to accept and store current setting Current Setting 14 Figure 1 4 Touch screen calibration display TOU TOUCH PANEL INTERFACE CAL PANEL press AUTO to abort CH THE DOT INSIDE THE SQUARE Place finger tip directly over the dot being careful to avoid parallax Keep touching the dot until the square SQU highlights and beeper sounds ARE LOCATIONS SEQUENCE a Screen SQUARES will appear near the screen corners 1 2 Sequence will be 3 4
55. ate name Auto Bar Line Time etc is written for each Measure mode measurement or for Auto mode when it is exited If a file with that name existed previously the old file is overwritten Once a Measurement Results file contains results it can be printed by selecting the Print File soft key renamed deleted or viewed The measurement set can be configured to require a password for permission to create rename edit and delete directories function keys and files When the Password function is enabled a Password file appears in the Configure_Files directory To Initially Set a Password 1 Select touch the Password file 2 Touch the screen to the right of the text Password 3 Type in the new password up to 15 characters 4 Press Return or Done and select the Update amp Exit soft key to put the new password into effect or press Cancel or Exit to leave without changing the new password NOTE Enabling the Password function requires partial removal of the right side cover of the measurement set Refer the instrument to a qualified service person to either change the Password enabled disabled state or to reset the password should it become unknown for some reason To Enable or Reset the Password Function Turn the measurement set off and remove the holding screws for the right side panel Slide the right side cover off the measurement set to access the 8 section DIP switch on the right rear corner of
56. atus information Auto mode makes measurements automatically and provides a tabular listing of the measurement results Reporting of measurement results can be performed in both manual and Auto mode Parameters such as clamping sync source and the displayed line system line are common for all the manual modes of operation However manual mode parameters do not carry over to Auto mode Parameters for both Auto mode and the manual modes are set through the directory and file structure accessed through the Configure button VM700T MEASUREMENT SET turbo Waveform Vector Picture Measure Auto SOURCE Freeze A B Cc Average Menu Help Configure Function Copy Select Line Move o _ o O Expand Qu Display Graticule Figure 2 2 VM700T keypad VM700T Option 01 NTSC amp Option 11 PAL User Manual Operating Basics Freeze Source Selection The second row down in the keypad contains the Freeze button the input and Average Functions channel selection buttons grouped as SOURCE A B and C and the Average button Freeze When Freeze is selected signal acquisition is halted The frozen display may be repositioned or resized according to the application as described below under Control Knob but the display is not updated Starting a new measurement or operation unfreezes the display Source and Polarity Selection For all operational modes one of the input sources is always selected Selected
57. ay VM700T Option 01 NTSC amp Option 11 PAL User Manual Waveform Mode From this point to measure sync width from the leading edge 90 point 10 down from blanking to the trailing edge 90 point 10 down from blanking you will need to locate the 90 point on the trailing edge by repeating the above procedure First move the waveform to the left until the trailing edge of sync is in the center of the screen Next touch the Center Right soft key Move the waveform to the left and right to position the amplitude reference markers on the 100 point and 0 point of sync Position the trailing sync edge so the point readout indicates 90 The Time from L to R readout now indicates sync width from the 10 point of the leading edge of sync to the 10 point on the trailing sync edge Volts IRE FLT 0 3 0 2 0 1 0 0 0 1 0 2 0 3 0 4 Noise reduction RESET MicroSeconds APL 50 1 Precision Mode Off 525 line NTSC No Filtering Synchronous Sync Source Slow clamp to 0 00 V at 6 63 us Frames selected 1 2 Sinewave at middle of screen is too small or frequency too low for measurement Time from L to R 0 142 MicroSeconds Vertical delta 0 000 Volts Frequency 1 T 7 040347 MHz 10 4 point Center Center Lock Reset Reset Cursors Left Right Right Cursors Diffs Stay On Figure 3 3 Left cursor locked to 90 point of sync edge right cursor to 10 point NOTE Always make sure the Left cursor is to the left of the Right cu
58. cation With a serial printer set the Baud Rate for the selected port to any value from 300 to 19200 9600 is recommended set Protocol to None Flow Control to XON XOFF Reset Character to None Parity to None Character Size to 8 and Carrier Detect to Disabled An example of settings is shown below Again when using a parallel printer no special settings are needed Copy Port Serial Port 1 Format HP LaserJet Report Port Serial Port 1 Format HP LaserJet Log Port None Format HP LaserJet Remote Port None Serial Port 0 Port 1 Protocol None Baud Rate 9600 Flow Control XON XOFF Character Size 8 Parity None Reset Character None Carrier Detect Disabled Setting up the HP LaserJet ThinkJet or DeskJet with Serial Interface Set the baud rate to the same as the VM700T Refer to the appropriate user manual for the printer setups Connect the serial printer cable between the VM700T and the printer An optional accessory printer cable is available from Tektronix Should you want you may wire your printer cable for the HP to VM700T connection The necessary wiring information is provided in Table 1 6 VM700T Option 01 NTSC amp Option 11 PAL User Manual Installation Making Your Own Serial Printer Cable Table 1 6 lists the wiring connections for making a cable to use with an HP LaserJet ThinkJet or DeskJet printer plotter The cable must have a female DB 9 connector on the VM700T end and a male DB 25
59. ch the measurement is made The Line value is used in the Default Line Sel soft key in the Select Line menu in Measure mode For PAL the Time offset from leading edge of sync parameter defines the actual measurement position The numeric Line values and Time values can be changed by highlighting the desired line and selecting the parameter you want to change Rotate the control knob to obtain the new value then select the Accept Input soft key or touch the screen anywhere inside the directory window Finish by selecting the Update amp Exit soft key For PAL two of the measurement descriptions can also be modified The 20T value on the Modulated Pulse F HAD line can be changed to 10T by selecting the parameter and rotating the control knob The 40 value of the 5 Riser Chroma Amplitude line can be changed to 20 by selecting the parameter and rotating the control knob Measurement Results Files are written into the Measurement Results directory in the following Directory circumstances m when you exit a measurement in Measure mode m when you exit Auto mode assuming that Auto mode has had time to go through one complete cycle of selected measurements VM700T Option 01 NTSC amp Option 11 PAL User Manual 2 29 Configuring the VM700T Video Measurement Set 2 30 Password File m when a getresults command has been sent from a remote m when a getresults request is part of a Function Key operation One file with an appropri
60. channel to be tested start with channel A Terminate the channel loop through output connection in 75 Q 2 Set the leveled sine wave generator for 50 kHz at an output level of 500 mV into 75 Q NOTE If the example leveled sine wave generator is being used the output level should be set for 3 81 dBm 3 Press the Measure hard key then if necessary display the measurement set Diagnostics directory by pressing the Diags soft key In diagnostics run the sine wave measurement application by pressing the Measure Sinewave soft key 4 After the measurement application has initialized turn averaging on by pressing the Average hard key until the Average hard key light is lit When the display stabilizes press the Freeze hard key The Delta Amp reading should remain at 0 If the Delta Amp reading changes press the Freeze key again as many times as needed until the Delta Amp reading remains at 0 This is now the reference to which all other measurements are compared 5 Set the leveled sine wave generator for a frequency of 4 43 MHz do not change the output level 6 To speed up the response to the frequency change toggle the Average hard key off Turn averaging on again after the display has re stabilized 7 Check that the amplitude is within 0 5 Delta Amp of 0 5 or less of the 50 kHz reference level stored in step 4 8 Set the leveled sine wave generator for 5 8 MHz do not change the output level VM700T Optio
61. cs Reprint 0 Abort Menu Input your selection Figure 1 8 Set diagnostics power up mode menu If there is a state or measurement mode you want the VM700T to be in or a series of measurements that need to be done after power is either turned on or restored after a power loss you can create a special powerup function file to perform the required steps The powerup or PowerUp function file is looked for by the measurement set as part of the initialization process If the file is found it is played back immediately after initialization has finished The powerup function file is created in exactly the same manner as other function files How to create a function file is explained in the VM700T RS 232 Interface Programmers Manual Serial Port Configuration 1 10 The following text provides information on the serial ports and the cabling requirements to make interconnections between the VM700T and a terminal and to the various printers supported by the VM700T for output of screen displays measurement results and diagnostic information The rear panel connectors are shown in Figure 1 9 VM700T Option 01 NTSC amp Option 11 PAL User Manual Installation Fan exhaust Figure 1 9 VM700T rear panel RS 232C Interface 66 80866 66 Parallel Alarm L printer port connector RS 232 ports The Port O and Port 1 communicati
62. d Measurements file provides Auto mode with a list of measurements to perform while the current Auto Limit file provides the limits at which those measurements generate Caution and Alarm messages The Selected Measurements System Default file is the only file available for selection when the instrument is shipped This file cannot be edited and all the measurements within it are Selected You must use the Create File function to copy the contents of the System Default file into a new file and then select the new file before you can select a subset from the measurements available To Select or Unselect a Measurement 1 Open the Selected Measurements file for editing by touching its icon in the display of the nvram ConfigFiles Selected_Measurements directory 2 Scroll the file using the knob until the desired measurement is highlighted Note that the labels Selected and Not Selected are printed below the directory window An example of the selection procedure is shown in the Diagnostic Selection file discussion on page 2 27 3 Touch the highlighted line on the Selected side of the screen to select the measurement or on the Not Selected side of the screen to deselect the measurement If you wish to select only a small subset of the available measurements press the Select None soft key and then make your measurement selections If you wish to unselect only a small subset of the available measurements press the Select All soft key the
63. d rating specified for this product Avoid Exposed Circuitry Do not touch exposed connections and components when power is present Do Not Operate With Suspected Failures If you suspect there is damage to this product have it inspected by qualified service personnel Do Not Operate in Wet Damp Conditions Do Not Operate in an Explosive Atmosphere Provide Proper Ventilation To prevent product overheating provide proper ventilation VM700T Option 01 NTSC amp Option 11 PAL User Manual vii General Safety Summary viii Symbols and Terms A A Terms in this Manual These terms may appear in this manual WARNING Warning statements identify conditions or practices that could result in injury or loss of life CAUTION Caution statements identify conditions or practices that could result in damage to this product or other property Terms on the Product These terms may appear on the product DANGER indicates an injury hazard immediately accessible as you read the marking WARNING indicates an injury hazard not immediately accessible as you read the marking CAUTION indicates a hazard to property including the product Symbols on the Product The following symbols may appear on the product A A e WARNING Protective Ground CAUTION Do Not Use on High Voltage Earth Terminal Refer to Manual 120 V Power Lines VM700T Option 01 NTSC amp Option 11 PAL User Manual Preface This manual d
64. de the directory window to accept the new selection NOTE In the Selected Measurements file s and the Diagnostics Selection file parameters are either Selected on the left side of the display or Not Selected on the right side of the display VM700T Option 01 NTSC amp Option 11 PAL User Manual 2 15 Configuring the VM700T Video Measurement Set 2 16 Printing Files To Select Unselect a Parameter Touch the line that the parameter appears on on either the Selected left or Unselected right side of the display Refer to Diagnostics Selection File on page 2 27 for an illustration of this selection process To Save Changes to a File and Exit Touch the Update amp Exit soft key To Exit Without Saving Changes Touch the No Change amp Exit soft key If the file has been modified a message box appears warning you that the file has been modified Press No Change amp Exit or any hard key to exit without saving the file press Update amp Exit to save changes to the file and exit the edit session Any measurement set file can be printed by selecting the Print File soft key and selecting the file The file is printed from the port either serial or parallel designated as the Copy Port The LED in the Copy button lights continuously while the measurement set creates a print file and flashes until the entire print file has been sent to the printer To Start File Printing 1 Display the directory containing
65. e Pressing this soft key brings up a display and submenu that allows you to set the internal clock of the measurement set Refer to page 2 17 for the procedure Configure Files Pressing this soft key brings up a display of the nvram ConfigFiles directory which gives you access to files and directories that control the measurement set operations Function Keys Pressing this soft key brings up a display of the nvram FunctionKeys directory along with a submenu that lets you create rename edit delete and print out function keys Use of the Function Keys feature is fully explained in the VM700T RS 232 Interface Programmer Manual Option Key Pressing this soft key brings up the control screen containing information on the instrument identification number the software identifica tion and the option authorization key Refer to Appendix C Adding Options for information on the use of this soft key and firmware upgrades Cancel Copy Pressing this soft key clears all copies in the spooler The Cancel Copy soft key appears as a choice in the Configure menu only if there are files in the printer queue Touching it deletes the files from the queue Mode Pressing this soft key toggles the measurement set between analog and digital operation This soft key only appears if your measurement set has Option 1S installed VM700T Option 01 NTSC amp Option 11 PAL User Manual Configuring the VM700T Video Measurement Set NOT
66. e VM700T Video Measurement Set 2 34 NOTE If the measurement set is in remote mode during a scheduled timed event the scheduled event is not performed To Create a Timed Events File 1 2 3 4 5 6 7 Press the Configure button Touch the Configure Files soft key Touch the icon for Timed Events Touch the Create File soft key Touch the icon of an existing file to use as a template Give the new file a name using the on screen keyboard Press Done when you have finished entering the name The contents of the new file appear on the screen ready for editing To Setup Timed Events 1 Create a Timed Events file 2 If any reports are to be generated make sure the Report Port in the Commu nication Setup file has a value other than None 3 Ifa function is to execute a screen copy make sure that the Copy Port in the Communication Setup file has a value other than None To Delete a Timed Events File 1 2 3 4 5 Press the Configure button Touch the Configure Files soft key Touch the icon for Timed Events Touch the Delete File soft key Touch the icon containing the name of the file you wish to delete The icon of the selected file disintegrates over a period of five seconds To stop file deletion touch the screen anywhere inside the directory window before the disintegration completes Stopping the disintegration part way through has no effect on the file VM700T Opti
67. e eee C 1 Activating the New Options 2 0 0c cece eee eee eee eens C 2 Index VM700T Option 01 NTSC amp Option 11 PAL User Manual iii Table of Contents List of Figures Figure 1 1 Rear panel fuse power connector ON OFF switch and Line Selector ousa iaa tt a 8a Figure 1 2 Power line conditioner with rackmounted VM700T Figure 1 3 VM700T Startup menu suero ern Figure 1 4 Touch screen calibration display o o Figure 1 5 Touch screen calibration panel oooooomo o o Figure 1 6 Panel calibration values 0 0 0 cece eee eee eee Figure 1 7 Diagnostic configuration menu 0 000 Figure 1 8 Set diagnostics power up mode menu Figure 1 9 VM DOT rear panel ansehe Figure 2 1 VM700T front panel 2 2 ne ee ans Figure 2 2 VM700T keypad casa in ra Figure 2 3 Typical main Configure menu o ooo ooocoocooo o Figure 2 4 Typical Configure directory o oooooooommomo ro Figure 2 5 Creating a new file u a eerren Figure 2 6 File naming keyboard o ooooooccrccnncno m oo Figure 2 7 Time Configure menu 0 00 cece eee eee Figure 2 8 How the VM700T Video Measurement Set gets parameter information ses vey sett nse phys ONS pectin Oke ole yea NE Figure 2 9 Communication Setup file with Copy Format selected Figure 2 10 Communication Setup file after edit is accepted Figure 2 11 Diagnostic selectio
68. e error s before reporting sets the number of consecutive measurements that find a value that is outside the Alarm Limits before logging the error to the printer To change the consecutive error s before reporting value 1 Rotate the control knob to scroll the screen and highlight the 2 consecutive error s before reporting line 2 Touch the number at the front of the line 3 Rotate the control knob to select either 1 2 or 3 4 Select the Accept Input soft key or touch the screen inside the directory window other than the selected parameter box to return the control knob to its scrolling function To change a Caution or Alarm Lower or Upper Limit 1 Rotate the control knob to scroll the screen and highlight the line with the limit you wish to change 2 Touch the limit you wish to change or remove VM700T Option 01 NTSC amp Option 11 PAL User Manual 3 27 Auto Mode Defining Measurement 3 28 Locations Selecting a Group of Measurements 3 Scroll the control knob to display the desired value or select Make it undefined if you wish to remove the limit 4 Select the Accept Input soft key or touch the screen anywhere inside the directory window other than the selected parameter box to return the control knob to its scrolling function Note that setting a pair of limits backward setting an upper limit lower than its lower limit will always display an error flag on the Auto mode display Alarm
69. e previously selected measurement The menu choice of Leave Directory displays the next higher level of the menu hierarchy The directories and files in the higher level menu displays are not accessed using this route in normal operation They are normally accessed by the appropriate front panel button or soft key as needed for the application in use 3 22 VM700T Option 01 NTSC amp Option 11 PAL User Manual A AAA Picture Mode Picture mode is intended solely to assist in input source identification of TV video picture signals If non picture test signals are viewed the signal patterns are displayed but no meaningful information may be extracted from the display Pressing the Picture button brings up a low resolution TV display with a software generated pseudo gray scale The number of the system line is always displayed and Select Line is always on A bright line indicates the position of the system line on the display You may quickly set the line selection to a visual reference point in the picture display and then switch to the waveform vector or measure mode to view or make measurements on the contents of that line Refer to Figure 3 10 for the soft keys available in this mode Available with 2 10e and above only Main menu A N Default Default Center Size Field Readouts Bright Contrast Picture Large 1 On Figure 3 10 Picture application menu tree The following
70. e to 8 V full scale The calibrated graticule scale tracks the waveform as it expands compresses or moves both vertically and horizontally VM700T Option 01 NTSC amp Option 11 PAL User Manual 3 3 Waveform Mode Menu 3 4 Freeze Cursors NOTE Using the Expand function to change the display gain does not affect the analog processing of the signal Signals of up to 4V peak to peak may be viewed Display and Graticule Intensity Display and Graticule intensity adjustments are also made with the control knob While the Display button is depressed the control knob varies the intensity of the waveform menu information and any other text on the display not associated with the graticule While the Graticule button is held in the control knob varies only the intensity of the graticule and the background text displays When Freeze is selected by pressing the Freeze button the measurement set acquires consecutive frames of 50 lines each and holds that information in the display memory Therefore it is not possible to scroll through the entire field when Freeze is selected only the acquired lines may be displayed Pressing the Menu button while in the Waveform mode displays a row of soft keys along the bottom of the display This row of soft keys is known as the Waveform menu The entire Waveform mode menu tree is shown in Figure 3 2 Pressing the Menu button when the measurement set is in Waveform mode displays the Wave
71. easurements file A few lines from a user generated New Timed Events file follow New Timed Events file Ti me Type Channel Standard Selected File Name 12 00 report A NTSC System Default 23 00 function B PAL Night_reset The active Timed Events file is specified on the last line of the Video Source file When the VM700T senses an event time specified in the active Timed Events file it does one of two things m Ifthe event is a report it selects the channel and standard then runs the measurements included in the Selected Measurements file specified by the active Timed Events file m Ifthe event is a function it selects the channel and standard then executes the function specified by the active Timed Events file The Report Time is entered in 24 hour format Any file in the Selected Measure ments directory may be specified at any Report Time At any Event Time regardless of what mode it is in the VM700T screen will blank and display a message indicating that a Timed Event is occurring You will see the LED in a SOURCE channel button light when measurements are being made for a report on that channel Report generation can also be overridden only by entering Remote Operation mode The Event Times System Default file is the only file available for selection when the instrument is shipped Any additional files you create to provide time events for your application are also available for selection VM700T Option 01 NTSC amp Opt
72. ed Measure_Limit Files When editing a limits file for the Measure mode named User s_Measure Limits_ File the path line would read Editing User s_Measure Limits_ File 2 10 VM700T Option 01 NTSC amp Option 11 PAL User Manual Configuring the VM700T Video Measurement Set The tilde in a directory or file name represents a carriage return and is used to join the first and second lines of directory function key or file names VM700T Video Measurement Sets equipped with both Option 01 NTSC and Option 11 PAL dual standard provide a soft key labeled Switch NTSC PAL in many of the Configure mode menus Touching this key toggles between the NTSC and PAL configuration file structures A readout below the directory window indicates which standard NTSC or PAL files you are currently viewing or editing Supplied Directories and All the directories and most of the files supplied with the measurement set are Files read only they cannot be edited renamed or deleted However files can be copied to create new editable files Only files that you have created can be renamed or deleted You can view supplied read only files by selecting them This displays the file contents All read only files are stored in ROM while all editable files are stored in nonvolatile memory NVRAM Six files supplied with the measurement set can be edited without first copying them Five of these are in the main Configure Files director
73. een dumps periodic reports or error logs to and in what formats m the password if any that must be used for controlling access to the configuration files m the option configuration choices The Configure button provides access to utilities that allow you to edit files that control these and other aspects of the measurement set operating environment Pressing the Configure button brings up the main Configure display seen in Figure 2 3 A bar graph show the amount of nonvolatile memory used and the amount still free in bytes and four soft keys menu controlled touch panel controls These soft keys are labeled Time Configure Files Function Keys and Option Key If a copy is queued for printing in the printer spooler another soft key labeled Cancel Copy is also displayed VM700T Option 01 NTSC amp Option 11 PAL User Manual 2 7 Configuring the VM700T Video Measurement Set used Non volatile memory used 52416 bytes free 995904 Les free 5 E 95 VM700T Video Measurement Set xxxxxx XXX Option 01 NTSC Version 2 09 Option 11 PAL Version 2 09 Option 40 Audio Version 1 05 Option 30 Component Version 1 01 Option 20 Teletext Version 1 01 Option 1G Echo Rounding Version 1 00 Option 21 Camera Testing Version 1 02 Configure Function Option Ti me Files Keys Key Figure 2 3 Typical main Configure menu These soft keys are defined as follows Tim
74. efer to the VM700T RS 232 Interface Programmer Manual for more information on connecting the VM700T for remote operation Table 1 3 VM700T 9 pin to PC 25 pin null modem cable for remote control VM700T cable end 9 pin female PC cable end 25 pin female 2 RD 2 Transmit Data TD 3 TD 3 Receive Data RD 5 SG 7 Signal Ground SG 7 RTS 5 Clear to Send CTS 8 CTS 4 Request to Send RTS VM700T Option 01 NTSC amp Option 11 PAL User Manual 1 13 Installation Connecting Serial Printers Connecting an EPSON LQ Printer This section discusses connecting a serial EPSON LQ 570 Apple LaserWriter HP LaserJet HP DeskJet HP ThinkJet or generic ASCII printer Both serial and parallel format printers are supported The default configuration files are set for use with the EPSON LO 570 letter quality printer with serial interface C 823051 The default configuration of the LO 570 printer is adequate for use with the VM700T Refer to the user s manual for the printer for information on any changes you might wish to make to the printer setup With the VM700T and printer power off connect the serial printer cable from the 25 pin DB 25 female connector on the printer rear panel to PORT 1 on the back ofthe VM700T a 9 pin DB 9 male connector If you have not changed the factory default values in the Communication Setup file all you need to do now is turn on the VM700T and the printer If yo
75. ependent Vector Line found in the Select Line menu in Vector mode See Vector Mode beginning on page 3 17 for more information on the Vector Line In individual measure ments the Default Line Sel soft key changes the displayed line to the measure ment line specified in the Measurement Locations file The measurement set provides a set of cursors that enable you to make custom measurements manually with a high degree of accuracy You can use the cursors to perform the following tasks m measure time duration m measure frequency m measure luminance or chrominance amplitudes m measure rise or fall times m toggle quickly between any two points in a frame Primarily cursors are used to make measurements that are not automatically made in Auto mode or Measure mode They can also be used to verify some of the automated measurements should the need arise Cursor measurement accuracy is limited by the one percent vertical accuracy of the measurement set display Accuracy may be improved at the expense of update speed if Precision mode is on The cursors which are displayed when the Cursors soft key is selected are two vertical bars The left cursor is a solid vertical line and the right cursor is a dashed vertical line When both cursors are on the same point they appear as a dotted vertical line The default position for the cursors is the center of the display Each cursor has a pair of horizontal amplitude reference markers that
76. escribes the front panel operation of the VM700T Video Measure ment Set Features that generally apply across the full range of possible options are explained here For specific information on the installed options see the applicable option manual supplied with this manual set Documentation on the measurement set and its options includes the following manuals VM700T Video Measurement Set User Manual Option 01 NTSC Measurements User Manual Option 11 PAL Measurements User Manual Option 1G Echo and Rounding Error Measurements User Manual Option 1S Serial Digital Measurements User Manual Option 20 Teletext Measurements User Manual Option 21 Camera Measurements User Manual Option 22 Video Wander Measurements User Manual Option 30 Component Measurements User Manual Option 40 41 42 Audio Measurements User Manual Option 48 GPIB Interface Programmer Manual VM700T RS 232 Interface Programmer Manual Your manual set includes the VM700T Video Measurement Set Option 01 amp Option 11 User Manual the VM700T RS 232 Interface Programmer Manual and the applicable option user manuals for the other options in your instrument Here are some additional software packages that may be of interest to you VMBKUP Software to assist in backing up the VM700T user created files These files can be reloaded to the same instrument or to another VM700T to generate a common set of configuration files VMRMGR This software aids you in handling the graphic displays a
77. espect to 286 mV nominal sync amplitude External Minimum 8 dB with respect to 286 mV nominal sync Composite sync amplitude Maximum 8 V peak to peak Composite sync A 2 VM700T Option 01 NTSC amp Option 11 PAL User Manual Appendix A Specification Physical Characteristics Power Requirements Table A 4 Physical characteristics Characteristic Dimensions W x H x D Weight Shipping Weight Table A 5 Power requirements Characteristic Mains Voltage Mains Frequency Power Consumption Fuse Rating Low Input Range High Input Range Cooling Method Description 19 0 in x 8 75 in x 21 9 in 483 mm x 222 mm x 556 mm 45 Ib 20 kg Approximately 71 Ib 33 kg Description 90 VAC to 132 VAC 115 VAC nominal 180 to 250 VAC 230 VAC nominal 50 or 60 Hz 250 Watts 400 VA maximum 6A slow blow 3 Amp 250 V Time Delay Forced air circulation VM700T Option 01 NTSC amp Option 11 PAL User Manual A 3 Appendix A Specification Environmental A 4 Table A 6 Environmental specification Characteristic Temperature Operating Non operating Altitude Non operating Operating Sine Vibration Operating Shock Non operating Transportation Humidity Operating Non operating Performance requirement 0 C to 50 C 32 F to 122 F 55 C to 75 C 67 F to 167 F To 50 000 feet 15240 meters To 15 000 feet 4572 meters 10 Hz 55 Hz 0 015 inch peak to
78. eter is highlighted then touching the screen over the parameter value A box appears around the item to edit see Figure 2 9 Communication Setup Copy Port Parallel Format Epson LQ Report Port Serial Port 0 Format Epson LQ Log Port None Format ASCI gt Sn Oa zo ro or Figure 2 9 Communication Setup file with Copy Format selected 2 Rotate the control knob until the desired parameter value appears in the box 3 Press the Accept Input soft key or touch the screen anywhere inside the window between the two light horizontal lines 4 Press the Update amp Exit soft key to save the changes see Figure 2 10 VM700T Option 01 NTSC amp Option 11 PAL User Manual 2 25 Configuring the VM700T Video Measurement Set Communication Setup Copy Port Parallel Format PostScript Report Port Serial Port 0 Format Epson LQ Log Port None Format ASCI date amp No Change it amp Exit Figure 2 10 Communication Setup file after edit is accepted Parallel Printer Port The parallel printer port is a Centronics compatible output port No special configuration settings are required beyond setting the printer type and selecting Parallel for the Copy Log or Report port Serial Port Configuration Two groups of eight lines appear in the Communication Setup file after the lines that control port and format assignments These two groups cons
79. extend from the cursor to the furthest left or right point the cursor touched on the waveform The anchor point of each amplitude reference marker is a short vertical line on the waveform The amplitude reference markers are cleared and reset when the Reset Cursors Center Left or Center Right soft keys are selected VM700T Option 01 NTSC amp Option 11 PAL User Manual Waveform Mode Amplitude reference markers are used to establish 0 and 100 reference levels so that the cursor can be positioned at a specific level for example 50 as needed for a measurement Cursor Status Lines Selecting the Cursors soft key displays the cursors and the submenu shown in Figure 3 3 When cursors are on the following three additional status lines appear m Sine pk pk mV freq MHz and offset mV Time from Lto R and Vertical Delta m Frequency 1 T and point point appears as UNDEFINED point when cursors are first turned on or when the Reset Cursors soft key is touched The values in the first Cursor status line are measured at the center of the display The message Sine wave at middle of screen has frequency above 1 5 x Subcarrier not measurable is displayed when no sine wave is found at the center This condition occurs when measuring noise and when the signal frequency is actually too high to measure The following formula is used for calculating the Sine pk pk mV freq MHz and offset mV values f t A sin Z
80. form menu which is structured as follows 1 11 H Display resets the Waveform display to fit a specified number of lines 1 to 11 into the display When possible it aligns the front porch of the system line to the left edge of the display and 0 volts is aligned with the horizontal reference line To select the number of lines to display hold the soft key while turning the knob This choice provides a set of cursors centered on the waveform display To position the cursors move the waveform over the cursor and lock the cursor to the desired point of the waveform When cursors are on the lower part of the display contains three additional status lines for cursor measurement results Pressing the Cursors soft key brings up the following submenu Center Left Right centers the left or right vertical cursor on the screen If the cursor is locked to the waveform the two will move together If the left and right cursors overlie each other they appear together as a single dotted line The vertical amplitude reference marker positions are reset if the cursor is unlocked VM700T Option 01 NTSC amp Option 11 PAL User Manual Waveform Mode Waveform Menu 1H Cursors Sync Noise Extra Filter Clamp Display 30 10 dB Functions Select Couple Cursors Submenu Center Lock Center Lock
81. g Synchronous Sync Source Slow clamp to 0 00 V at 6 63 uS Frames selected 1 2 Sine pk pk mV 286 freq MHz 3 58 offset mV Time from L to R 0 000 MicroSeconds Gerticas delta 0 288 volts Frequency 1 T UNDEFINED UNDEFINED 3 p See isa Left Left Right Right Cursors Diffs Stay On Cursor readout Figure 3 5 Cursors mode indicating color burst amplitude VM700T Option 01 NTSC amp Option 11 PAL User Manual 3 15 Waveform Mode 3 16 VM700T Option 01 NTSC amp Option 11 PAL User Manual Vector Mode Display This section provides a detailed description of the capabilities of Vector mode and tells how to operate the VM700T as a vectorscope Vector mode provides a conventional vector display Because the display is digitally derived a single line is displayed with full brightness The Vector mode has an electronic graticule accompanied by digital readouts of the line selection mode System Line or Vector Line refer to page 3 20 displayed field and line number phase Angle in degrees Gain in both dB and times gain APL level and Setup level Figure 3 6 shows a typical color bar signal on a vertical interval line of an NTSC test signal Vector Line L 17 F2 Angle deg 0 3 Gain x 1 000 525 line NTSC Burst from source Setup 7 5 Figure 3 6 Vector display of a color bar signal Additional information is included on the left side of the display to indicate the noise reduction if Average is on
82. ge 3 18 Expand while the screen is touched 3 3 Expansion Waveform 2 4 Expansion point 2 4 External VGA monitor 1 18 Extra Functions 3 7 F Field 1 or 2 Field 3 or 4 NTSC 3 9 Field n Line nn NTSC Line nn PAL 3 9 Field Toggle 3 9 Index 2 file 2 9 files creating 2 11 deleting 2 14 editing a line 2 14 Editing Files 2 14 editing keyboard 2 14 rules for naming 2 12 saving changes to a file 2 16 start printing 2 16 stop printing 2 16 Filter Select 3 8 firmware upgrades C 1 Fixed IRE NTSC Only 3 8 Flow Control 1 12 2 26 Format changing assignment 2 25 Frame 1 2 3 4 PAL 3 9 Freeze 2 3 3 4 frequency measurement 3 14 front panel 2 1 Function button 2 4 Function Keys 2 8 Function playback PowerUp 1 10 Functions playback from front panel 1 10 Fuse 1 3 G Gain 3 7 gating widths 3 9 Graticule 3 1 Graticule Intensity 2 4 3 4 graticule scale 3 2 H Help button 2 4 high level diagnostics 2 27 High pass Filter 3 8 Horizontal Reference Line 3 2 inputs 2 5 Installation power line conditioner 1 5 power requirements 1 3 Instrument Specifications A 1 intensity 2 4 internal calendar and clock setting 2 17 inverted source 2 3 VM700T Option 01 NTSC amp Option 11 PAL User Manual Index K keyboard character set shifting 2 11 Set1 2 12 Set2 2 12 L Leave Directory soft key 2 9 LF Noise 7 5 kHz 10 kHz 15 kHz 3 8 line frequencies 1 3
83. gging line is highlighted 2 Touch the number at the front of the line 3 Rotate the control knob to select either 1 2 or 3 4 Select the Accept Input soft key or touch the screen anywhere inside the directory window to return the control knob to its scrolling function The next two lines after the consecutive errors before logging line contain noneditable label information Each line of the rest of the file lists the name of an Auto mode measurement along with its lower and upper Caution limits and its lower and upper Alarm limits To Change the Lower or Upper Limit of a Caution or Alarm 1 Rotate the control knob to scroll the screen until the line with the limit you wish to change is highlighted 2 Touch the limit you wish to change or remove VM700T Option 01 NTSC amp Option 11 PAL User Manual Configuring the VM700T Video Measurement Set 3 Scroll the control knob to display the desired value or select Make it undefined if you wish to remove the limit 4 Select the Accept Input soft key or touch the screen anywhere inside the directory window to return the control knob to its scrolling function Setting a pair of limits backwards setting an upper limit lower than its lower limit always generates an alarm flag on the Auto mode display Alarm limits may be set inside Caution limits but then only Alarm limit violations are flagged Communication Setup The measurement set has two RS 232 C ser
84. ghlighted see Figure 2 11 then touching the right side of the highlighted line above the words Not Selected To return the choice to selected highlight the choice and touch the screen on the left side above the word Selected VM700T Option 01 NTSC amp Option 11 PAL User Manual 2 27 Configuring the VM700T Video Measurement Set Power Up Diagnostics Selection Genlock Diagnostic Controller Diagnostic Acquisition Diagnost ADC Diagnostic AnalogInput Diagnostic FilterBoard Diagnostic GPIB Diagnostic AudioProcessor Diagnostic AudioAnalog Diagnostic C Rotate control knob to highlight the selection to be made Selected Line 8 Figure 2 11 Diagnostic selection file Not Selected As shown in Figure 2 12 the FilterBoard Diagnostic routine is in the Not Selected column and will not be performed Power Up Diagnostics Selection Genlock Diagnostic Controller Diagnostic Acquisition Diagnostic ADC Di agnostic Analogl nput Di agnostic tic GPIB Diagnostic AudioProcessor Diagnostic Touch this side of the screen to deselect the highlighted choice FilterBoard Diagnos AudioAnatog Diagnostit Selected Line 8 Selected Not Figure 2 12 Diagnostic selection file showing an unselected choice Measure_Limit Files The Measure_Limit Files directory contains limit information for Measure mode Directory manual measurements The limits in these files perform the following two
85. ghtly from real time For NTSC the measurement set may display any part of the two frames of two fields each Select the frame displayed by selecting Field 1 or Field 2 for frame 1 or Field 3 or Field 4 for frame 2 The default display is both frames Use the Select Line menu discussed later in this section to move to the desired field within a frame For PAL the measurement set may display any part of the four frames of an eight field color sequence You can select which frames are displayed in the Select Line menu the default is all four frames displayed There is no implicit field selection Again use the Select Line menu discussed later in this section to move to the desired field within a frame The Waveform mode graticule scale tracks as the waveform expands contracts or moves in both the horizontal and vertical directions This ensures the graticule scale is always calibrated regardless of the gain expansion factor The Waveform mode vertical graticule scale is in mV or Volts depending on the vertical gain setting VM700T Option 01 NTSC amp Option 11 PAL User Manual 3 1 Waveform Mode Vertical Scale units Vertical Graticule units Volts IRE FLT 0 lt Horizontal Reference line 3 F2 Field Line L16 readout la A jal pur Horizontal Graticule 10 0 20 0 30 0 40 0 50 0 60 0 scale Noise reduction RESET MicroSeconds Horizontal Scale APL 50 3 Precision Mode Off Stat
86. he voltage range selection switch and fuse holder are located in the lower left corner of the rear panel see Figure 1 1 The measurement set is shipped from the factory set for the operating voltage of the destination nation 115 VAC or 230 VAC If the setting is not correct as received it must be changed before connecting the power cord to the power source Simply set the voltage range selection switch located on the rear panel of the measurement set to the correct position for operation CAUTION When changing the line voltage selector switch you must also change the fuse to provide proper protection for the operating voltage in use The 3A slow blow fuse provides the proper protection in the 230 VAC range and the 6A slow blow fuse provides protection for operation in the 115 VAC range A detachable three wire power cord with a three contact plug is provided with each instrument for connecting to both the power source and protective ground The protective ground connector in the plug connects through the protective ground conductor to the accessible metal parts of the instrument For electrical VM700T Option 01 NTSC amp Option 11 PAL User Manual 1 3 Installation 1 4 Power Line Conditioner Accessory shock protection insert this plug only into a power source outlet that has a properly grounded protective ground contact 66 6666 66
87. hite phosphor CRT instead of the standard green phosphor when a VM700T is ordered with the option The display can be viewed on an external VGA monitor connected to the rear panel VGA output connector The user manuals for the VM700T Video Measurement Set and its options are applicable to the VM700A with either the VMTB or the VMTX turbo upgrade installed VM700T Option 01 NTSC amp Option 11 PAL User Manual Installation Power Requirements A Changing Line Voltage Range and Fuse A Power Cord This section contains information about preparing the VM700T Video Measure ment Set for operation The measurement set operates with line frequencies of 50 Hz or 60 Hz over two line voltage ranges The nominal setting of the low voltage range is 115 VAC The nominal setting of the high voltage range is 230 VAC There are two power switches on the measurement set one is on the rear panel to the right of the power cord receptacle and one is on the front panel Both must be on to operate the instrument The rear panel switch is the master power switch The switch on the front panel remotely enables the voltage supply outputs WARNING Dangerous voltages are present within the Power Supply module when the rear panel power switch is on regardless of the position of the front panel power switch Do not operate the measurement set with any covers removed Refer all servicing of the instrument to a qualified service person T
88. ial ports and a parallel printer port File Either serial port can be attached to an ASCII Epson HP LaserJet or PostScript printer or to a modem or terminal for serial communication during remote operation The parallel printer port may be used for any printer having a Centronics compatible parallel printer interface The Communication Setup file tells the measurement set how the RS 232 C ports are configured The factory default settings are the proper settings for a serial Epson LQ 570 printer connected to Serial Port 1 NOTE Option 48 the GPIB Interface option adds a parallel GPIB port Any or all of the logical ports may be set to GPIB when the option is installed Port and Format Assignments The standard VM700T Video Measurement Set has the following three physical ports m Serial Port 0 m Serial Port 1 m Parallel Printer Port NOTE The GPIB Interface Option 48 adds GPIB to the available port list for Copy Log Report and Remote It has the following five logical ports Copy the port to which screen dumps generated by pressing the Copy button as well as printouts generated by the Configure mode Print File soft key are sent The physical port may be either of the serial ports or the parallel printer port m Report the port to which Timed Event reports are sent Again the physical port may be either of the serial ports or the parallel printer port VM700T Option 01 NTSC amp Option 11 PAL User
89. ic looping Return to the Configure menu and check the Diagnostic Errors file for new errors Test Equipment Required The test equipment to use for performing the verification procedures is shown in Table B 1 Test equipment suggestions for use in doing the verification procedure are given in the example column The examples given are based on the test equipment that many customers and the Tektronix service centers have installed for supporting the VM700 family of video measurement sets Substitute test equipment may be used if available Refer to the Minimum Specification column to determine the key specifications needed to verify the accuracy of the VM700T Video Measurement Set If you do not have the required test equip ment you can return your instrument to a Tektronix service center for the accuracy verification Table B 1 Test equipment required for verification Test equipment Video amplitude calibrator Example Tektronix 067 0916 00 not currently available for purchase Minimum specification Purpose Reference standard for amplitude verification Square wave 0 0 mV to 999 9 mV peak accuracy 0 05 resolution 0 1 mV Leveled sine wave generator 75 Q output impedance Measure sine wave check Hewlett Packard 3336C Sine output flat within 0 025 dB filter flatness wave generator with option 0 3 to 6 MHz 005 Television signal generator NTSC full field and burst NTSC test signal source Tektronix TSG 170
90. ideo Measurement Set executes a configurable list of continuously performed measurements Whereas Measure mode makes individual measurements that are graphically displayed Auto mode performs all the selected measurements and generates the measurement results in tabular format The measurements to be made and the limits to measure to are obtained from the configuration files The Auto mode measurements provide a large amount of information about the signals being measured and indications of violations of user selectable measurement limits This section discusses Auto mode operation and how to configure it When you press the Auto button the VM700T displays the measurements being made in Auto mode Due to the large number of measurements made by Auto mode not all of them can be displayed on the screen at once Use the control knob to scroll the display to view all of the list of measurements and results As each measurement is made the measurement s name the measured value the measurement units and the limit values for the measurement are highlighted When the complete list of measurements has been made the highlighted text returns to normal display The Auto mode measurements are not affected by the sync and clamping parameters set in Waveform mode for the manual measurements In Auto mode the VM700T lists measurement names on the left hand side of the display Each name is followed by the measurement result and a notation of the measuremen
91. ilable A selected measurements file is used in conjunction with an auto limit file to provide Auto mode with a list of desired measurements and the limits at which those measurements generate caution and alarm messages Note that the mnemonic of each measurement name used in remote operation is listed to the left of the measurement name The Selected Measurements system default file is the only file available for selection when the instrument is shipped Use the Create File soft key to create a new file you can customize VM700T Option 01 NTSC amp Option 11 PAL User Manual Auto Mode Selecting or deselecting a particular measurement is simple After opening the desired file use the control knob to scroll the file so the desired measurement is highlighted Note that the labels Selected and Not Selected are printed below the directory window Touch the highlighted line on the Selected side of the screen to select a measurement or on the Not Selected side of the screen to deselect a measurement If you wish to select a small subset of the available measurements select the Select None soft key and then make your measurement selections Touching the Select All soft key selects all measurements Setting Event Times Files in the Timed Events directory provide a facility for producing scheduled reports of Auto mode measurements or executing functions at specified times Reports consist of a set of measurements designated by a selected m
92. ion 11 PAL User Manual 3 29 Auto Mode 3 30 VM700T Option 01 NTSC amp Option 11 PAL User Manual Appendices A AAA Appendix A Specification The performance limits in this specification are valid with the following conditions This instrument must have been calibrated adjusted at an ambient tempera ture between 20 C and 30 C The instrument must be in an environment with temperature altitude humidity and vibration within the operating limits described in this specification The instrument must have had a warm up period of at least 20 minutes The instrument must have had its signal path compensation routine last executed after at least a 20 minute warm up period at an ambient temperature within 5 C of the current ambient temperature Any conditions that are unique to a particular characteristic are expressly stated as part of that characteristic Electrical Characteristics Table A 1 Input characteristics Characteristic Channel A B and C Performance requirement Supplemental information User selectable Differential A B A C B A B C C A and C B may also be digitized for parallel component testing Input Type Loop through BNC connectors Return Loss 75 Q2 Greater than 46 dB from 0 to 5 MHz Channels A B and C are loop through terminated in 75 in use or not power on or off Input Signal Range 3 6 dB with respect to 1 Vp p nominal video 1 41 Vp p to 0
93. is a powerup function file refer to Function Playback on Power Up on page 1 3 If the any of the diagnostic tests fail refer your instrument to a qualified service person VM700T Option 01 NTSC amp Option 11 PAL User Manual Installation As a user there are two things you may wish to do in the diagnostics mode These are setting the power on run mode either to run the diagnostics at power on or to skip them for a quick start and calibrating the touch screen Calibrating the Touch The touch screen is fully calibrated when shipped from the factory Although it Screen will seldom be necessary the touch screen can easily be recalibrated To calibrate the touch screen 1 Switch off power to the measurement set at the front panel 2 Press and hold the Menu button while turning on the power 3 After the measurement set beeps twice to acknowledge the startup mode release the Menu button The VM700T then initializes directly into the Low Level Diagnostics Interface with the VM700T startup menu as shown in Figure 1 3 Low Level Diagnostic Interface knob moves cursor Select Line inputs NO VM700T STARTUP MENU Key Selection Instrument RUN MODES Menu UTILITIES Menu R U D Low Level DIAGNOSTICS Menu C Diagnostics CONFIGURATION Menu H Diagnostics HELP Menu T Calibrate TOUCH PANEL INTERFACE Reprint 0 Abort Menu Input your selection Figure 1 3 VM700T Startup menu 4 Inthe st
94. l path through the instrument Test Equipment Required m Video amplitude calibration fixture VAC m Coaxial cable 75 Q high quality noise free 1 meter length Procedure Measure Squarewave 1 Connect the VAC to channel A of the measurement set leave the input unterminated 2 Set the controls of the VAC for NTSC LUM and 700 0 mV 3 On the measurement set press the Measure key the Diags soft key if not already in Diagnostics mode and the Measure Squarewave soft key 4 Check the measurement set for a reading of 700 mV 2 1 mV NOTE If the voltage measured in step 4 is out of the specified limits your calibration DAC may need readjustment Refer your instrument to a qualified service person 5 Move the test signal and select the appropriate channel to repeat the check for channel B and channel C 6 Disconnect the VAC from the measurement set VM700T Option 01 NTSC amp Option 11 PAL User Manual B 3 Appendix B Performance Verification B 4 Measure Sinewave This procedure is to be used as a check for proper system level adjustment of the measurement set It checks the frequency response flatness over the operating frequency range Test Equipment Required m Leveled sine wave generator m Termination 75 Q precision BNC m Coaxial cable 75 Q high quality noise free 1 meter length Procedure Measure Sinewave 1 Connect the leveled sine wave generator output to the measurement set
95. lec tion Video file and the contents of the Video_Source Files directory The following text is an example of a typical Source_Selection Video file Station XYZ s video source file Channel A Video Source txl Channel B Video Source t x2 Channel C Video Source studiol Timed Events My_Events With the text of the example Source_Selection Video file the measurement set reads the file named tx1 in the Video_Source Files directory for parameter information when Channel A is selected the file tx2 when Channel B is selected and the file studio1 when Channel C is selected The occurrence of timed events periodically scheduled reports and functions is determined by the contents of file My_Events in the Timed Events subdirectory VM700T Option 01 NTSC amp Option 11 PAL User Manual Configuring the VM700T Video Measurement Set When the VM700T Video Measurement Set is shipped all three channel parameters and the Timed Events parameter are set to System Default For a dual standard measurement set those equipped with both Option 01 NTSC and Option 11 PAL the Source_Selection Video file is a little different For each channel it indicates the current standard in effect along with a separate file from the Video_Source Files directory for each of NTSC and PAL When the NTSC standard is in effect the file listed under the NTSC column is used when the PAL standard is in effect the file listed under
96. lt file 3 28 Selected Measurements File 2 21 Serial Interface Parameters 1 11 Serial Port 0 2 23 Serial Port 1 2 23 Service support contact information x Setting Alarm Limits 3 27 Setting Event Times 3 29 Setting the Internal Clock 2 16 signal sources A B and C 2 18 Sound in Sync 2 29 3 6 Source and Polarity Selection 2 3 Source Name 2 21 Source_Selection Video file 2 18 specifications A 1 spooler 2 16 Status Lines 3 3 Support Functions 2 3 Configure and Function 2 4 Copy 2 4 Help 2 4 Menu 2 3 Sync Change Sampling 3 7 External Sync 3 6 Locked to Source 3 6 Sound in Sync PAL only 3 7 Sync A B C 3 6 Sync source 3 6 sync loop through 2 5 system line 3 2 3 20 T Technical support contact information x Tektronix contacting x tilde 2 11 Time 2 8 2 17 time and date setting 2 17 Timed Events 2 32 3 29 file 3 29 timed events file creating 2 34 deleting 2 34 timed execution 2 35 touch and zoom 3 3 Touch Screen Calibrating 1 7 touch screen 2 1 tree 2 9 VM700T Option 01 NTSC amp Option 11 PAL User Manual Index U upgrades C 1 URL Tektronix x V Vector 75 Bar Cal 3 19 Angle deg readout 3 18 Burst in Ch A B C 3 19 Burst in Source 3 19 Burst Reference 3 19 calibrated state 3 19 Change Setup NTSC only 3 19 color bar signal 3 17 Display Select V PAL only 3 18 Field n Line nn NTSC Line n PAL 3 20 Field Toggle 3 20 Find Colorb
97. lution The input range is indicated by two horizontal cursors Signals beyond these cursor levels are clipped Offset used to bring the signal inside the cursors that appear when the Manual Gain mode is on Otherwise hard clipping may occur Manual Gain selects control of the input gain and offset used from the other soft keys in this submenu When deselected normal automatic gain control is in effect When highlighted two horizontal cursors appear in the waveform area showing the limits of the input range before hard clipping occurs Screen Memory when highlighted causes screen erasures to cease allowing a build up of displayed waveforms This is useful for looking at eye heights jitter or abnormal excursions of the signal over a period of time The screen is cleared if the waveform is moved by the knob NOTE Calibration is suppressed in Screen Memory mode VM700T Option 01 NTSC amp Option 11 PAL User Manual 3 7 Waveform Mode 3 8 Filter Select Clamp Couple Precision Mode provides a higher accuracy display for waveforms with rise times between 5 MHz and 6 MHz However the system update rate is slowed when Precision mode is on This mode is useful for cursor measurement of fast edges as found on 1T pulses Locked Waveform when highlighted this key disengages knob movement Moving the knob resets the calculation when accumulating averages and resets the screen when in Screen Memory mode This s
98. mal places The following example discusses the Vertical delta readout and its use in measuring amplitude of the color burst 2 0 4 0 6 0 3 0 10 0 12 0 Noise reduction 10 79db MicroSeconds APL 100 0 Precision Mode Off 525 line NTSC No Filtering Synchronous Sync Source Slow clamp to 0 00 V at 6 63 uS Frames selected 1 2 Sine pk pk mV 286 freq MHz 3 58 offset mV Time from L to R 0 000 MicroSeconds Vertical delta 0 000 volts gt Frequency 1 T UNDEFINED UNDEFINED 3 AA AA Left Left Right Right Cursors Diffs Stay On Cursor readout Figure 3 4 Color burst aligned with horizontal reference line VM700T Option 01 NTSC amp Option 11 PAL User Manual Waveform Mode To Make an Amplitude Measurement Vertically expand the desired portion of the signal to give adequate resolution Use the control knob to position the bottom or top of the portion of the waveform to be measured on the horizontal reference line See Figure 3 4 Select the Reset Diffs soft key to reset the Vertical delta readout to 0 000 Volts Use the control knob to position the top of the portion of the waveform to be measured on the horizontal reference line See Figure 3 5 The Vertical delta readout now indicates the absolute amplitude of the waveform Volts IIRE FLT 2 0 4 0 6 0 3 0 10 0 12 0 Noise reduction 15 05db MicroSeconds APL 100 0 Precision Mode Off 525 line NTSC No Filterin
99. mn aii eects Aihara etn gd Baas na Seaton ae 3 26 Timed Events iria ieee anna nha shal 3 26 Violated Limits Logging 00 EO cece eee eee 3 26 Remote Operation vis ce ic a eae a da ae 3 26 Configuring Auto Mode 0 0 eee eee cee cee 3 26 Setting Alarm Limits esseci ue 0c c cece eee eee eee eee 3 27 Defining Measurement Locations 0 c ee ee eee eee eens 3 28 Selecting a Group of Measurements 0000 c eee eee 3 28 Setting Event TIMES 666 osc s ee ee nn ne 3 29 Appendices Appendix A Specification 0 ccc ccc cece cece cece eeeee A 1 Electrical Characteristics 2 2 esn ea a aa tenn O A 1 Physical Charatteristics ecs remesa eee A 3 Power Requirements 0 cece eran aaa cee ee teen een eens A 3 Environmental 4 2 A rn A 4 Optional ACCESSOTY mios A a Ban na na Dank A 8 Power Line Conditioner for Option Al and A2 Power Cords A 8 Appendix B Performance Verification o oooooooommom o B 1 Self Diagnostics si iui soe eee ain ei a AR eh B 1 Test Equipment Required 0 cee eee ee ene B 2 System Verification Procedures 2 0 c cece cece eect n eens B 3 Measure Square waves ota AA Drug B 3 Measure Sinewave Tase a kes Be deel a te Re Le B 4 Measure the Burst Frequency 0 0c cece dedit ee eee B 6 Appendix C Adding Options ccc cece cece cree eee evees C 1 Ordering an Option Upgrade 0 0 eee cece eee en
100. mp Option 11 PAL User Manual 2 21 Configuring the VM700T Video Measurement Set 2 22 Auto_Limit Files Directory The Auto_Limit Files directory contains limit files used by Auto mode A limit file lists all the measurements available for the Auto mode Each measurement has limits that when exceeded produce Caution or Alarm messages on the display and can generate error logging Both Caution and Alarm limits can be set for every measurement The Auto Limits file in use is specified by the active file in the Video_Source Files directory A file from the Selected Measurements directory is used in conjunction with a file from the Auto_Limits Files directory to provide Auto mode with a list of measurements to be made as well as the limits for those measurements The first line of each file in the Auto_Limit Files directory is the title line for identification of the file The second line sets the number of consecutive times the measurement set must find a value outside either of its Alarm limits before sending a report of the error to the Log Port NOTE All Cautions and Alarms encountered in Auto mode are displayed on the measurement set screen but only Alarms equal to or exceeding the consecutive errors number specified in the active Auto Limits file are sent to the Log port To Change the Consecutive Error s Before Logging Value 1 Rotate the control knob to scroll the screen until the consecutive error s before lo
101. n 01 NTSC amp Option 11 PAL User Manual Appendix B Performance Verification 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Again to speed up the response to the frequency change toggle the Average hard key off Turn averaging on again after the display has re stabilized Check that the amplitude is within 0 55 of the reference level stored in step 4 Change the TV Standard parameter from PAL to NTSC by pressing the XY Arrow hard key Change the filter selection from No Filter to the NTSC bandwidth limiting filter by pressing the Move Expand hard key until the filter displays NTSC BW Lim Return the leveled sine wave generator to 50 kHz do not change the output level To speed up the response to the frequency change toggle the Average hard key off Turn averaging on again after the display has re stabilized Check that the amplitude is within 0 5 of the reference level stored in step 4 Reset the leveled sine wave generator for 3 6 MHz do not change the output level To speed up the response to the frequency change toggle the Average hard key off Turn averaging on again after the display has re stabilized Check that the amplitude is within 0 5 of the reference level stored in step 4 Change the Filter parameter from NTSC BW Lim to Chroma BP by pressing the Move Expand hard key Don t change the settings on the leveled sine wave generator
102. n 11 PAL User Manual i Table of Contents Creating and Deleting FileS ooooooocooooocoocrncrrooooo 2 11 Editins Els at ar Ar BAR 2 14 Printing Files iia realen 2 16 Setting the Internal Clock 0 0 eee cee eee eee eens 2 17 Directory Structures it ana ar ald Rn 2 18 Source_Selection Video File 6 ccc eee ee 2 18 Video_Source Files Directory 6 6 c cece eee eee eee 2 21 Auto_Limit Files Directory 2 0 0 06 06 c cece cece eee eee 2 22 Communication Setup File 0 0 cece eee 2 23 Diagnostic Errors File 0 0 eee eee 2 27 Diagnostics Selection File 2 0 6 ccc eee eee 2 27 Measure_Limit Files Directory 0 c cece eee eee ee 2 28 Measurement Locations Directory 6 66 cece eee ee 2 29 Measurement Results Directory 22222cceeeeeeeeeennn 2 29 Password File o zus a dasa asl 2 30 Selected Measurements Directory 0 66 c cece eee eee eee 2 32 Timed Events Directory 0 c cece cece eee eee 2 32 Video Source Identification File 6 6 eee 2 36 Reference Waveform Mode o saints Seem Gases ENTE SAA 3 1 Display 0 AA A A A 3 1 Waveform mc id did Dall 3 1 GALL CULES Ai ee ie Benes ee 3 1 Line Identificate e nd baw oars tab one ded 3 2 Horizontal Reference Line 0 0 cece eee eee eee ee 3 2 Status Eines sutil en ts ad all 3 3 Control Knobs avec ea ee aa ame na 3 3 Freeze nee alte ya ays en 3 4 Men
103. n file oooooooo Figure 2 12 Diagnostic selection file showing an unselected choice Figure 2 13 DIP switch setting to enable Password Figure 3 1 Typical NTSC Waveform display oo oooomoo o o Figure 3 2 Waveform menu tree o oooooccooccrncnncno m o Figure 3 3 Left cursor locked to 90 point of sync edge right cursor to 10 PO a o Figure 3 4 Color burst aligned with horizontal reference line Figure 3 5 Cursors mode indicating color burst amplitude Figure 3 6 Vector display of a color bar signal Figure 3 7 Vector mode menu oo oococcoccoccccncncccco eee Figure 3 8 Typical Measure Mode menu choices o o oo ooo Figure 3 9 Measure menu of Camera Video Option Figure 3 10 Picture application menu tree ooooooooomo o Figure C 1 Typical main Configure menu oooo ooocoocmo oo Figure C 2 Option Key control menu 0 000000 08 Figure C 3 Error message for invalid Option Key 1 4 1 5 1 7 1 8 1 8 1 9 1 9 1 10 1 11 2 1 2 2 2 8 2 10 2 12 2 13 2 17 2 20 2 25 2 26 2 28 2 28 2 31 3 2 3 5 3 13 3 14 3 15 3 17 3 18 3 21 3 22 3 23 VM700T Option 01 NTSC amp Option 11 PAL User Manual Table of Contents List of Tables Table 1 1 Serial port protocol una aan sahen 1 11 Table 1 2 Typical VM700T RS 232C cable connections 1 13
104. n unselect the measurements you do not want to make Files in the Timed Events directory provide a facility for producing scheduled reports of Auto mode measurements and performing operations in the form of functions to be played back at specified times Events occur at times specified by the current Timed Events file The Report Port setting in the Communication Setup file must be set to Port 0 Port 1 or Parallel not None for reports to be generated VM700T Option 01 NTSC amp Option 11 PAL User Manual Configuring the VM700T Video Measurement Set Consider the following lines from a user generated Timed Events file named daily_events Timed Events File daily_events Ti me Type Channel Standard Selected File Name 9 30 function mi d_ morn 15 30 report B NTSC mi d_pm Timed Events files use a 24 hour clock to specify event occurrences When this file is the current Timed Events file the following events are set to occur daily a function called mid_morn is executed at 9 30 a m m a report is generated at 3 30 p m using the Video Source file named mid_pm Two kinds of timed events can occur a report can be generated designated as event type report in the Timed Events file or a function can be executed designated as event type function in the Timed Events file For report events the measurement set looks in the nvram ConfigFiles Video_Source Files directory for the file n
105. nd transferring them to a personal computer for filing display or printing VMTerminal This useful software package assists in remote control of the VM700T and remote file capture using a personal computer VM700T Option 01 NTSC amp Option 11 PAL User Manual ix Preface Contacting Tektronix Phone Address Web site Sales support Service sup port Technical sup port 1 800 833 9200 Tektronix Inc Department or name if known 14200 SW Karl Braun Drive P O Box 500 Beaverton OR 97077 USA www tektronix com 1 800 833 9200 select option 1 1 800 833 9200 select option 2 Email techsupport tektronix com 1 800 833 9200 select option 3 6 00 a m 5 00 p m Pacific time This phone number is toll free in North America After office hours please leave a voice mail message Outside North America contact a Tektronix sales office or distributor see the Tektronix web site for a list of offices VM700T Option 01 NTSC amp Option 11 PAL User Manual AA AI ras Getting Started Getting Started The VM700T Video Measurement Set is a multifunction television test and measurement device with an easy to use interface The VM700T combines the functions of a waveform monitor vectorscope automatic measurement set and noise measurement set in a single instrument Input signals can be obtained from live TV broadcast or generated by test equipment The VM700T can be operated by using its
106. nd burst to the channel A input terminate the Ch A loop through with a 75 Q BNC termination 7 Check that the burst frequency measurement is O 10 Hz using the internal frequency reference VM700T Option 01 NTSC amp Option 11 PAL User Manual B 7 Appendix B Performance Verification B 8 VM700T Option 01 NTSC amp Option 11 PAL User Manual EA AAA AAA Appendix C Adding Options The following instructions tell you how to order an option upgrade and how to activate the new option configuration in your measurement set Ordering an Option Upgrade First you must locate the current option authorization key for your VM700T Video Measurement Set If your set is not running turn it on and wait for the system initialization to complete Use the following procedure to locate the option key 1 Press the Configure front panel button to display the menu shown in Figure C 1 Non volatile memory used 52416 bytes free 995904 tes used free 5 95 VM700T Video Measurement Set Xxxxxx 022 Option 01 NTSC Version 2 09 Option 11 PAL Version 2 09 Option 40 Audio Version 1 05 Option 30 Component Version 1 01 Option 20 Teletext Version 1 01 Option 1G Echo Rounding Version 1 00 Option 21 Camera Testing Version 1 02 Time Configure Function Option Files Keys Key Figure C 1 Typical main Configure menu 2 Touch the Option Key soft key This brings up the Option Ke
107. ndalone VM700T on a benchtop Rackmounted VM700T Use the mounting bracket and screws provided with the accessory to attach the box to a rackmount rail Use only 10 screws for the screw holes in the box Place the box in any convenient location within the rack where you can make the power cord connections see Figure 1 2 NOTE Do not mount the power line conditioning box in any location that blocks the air flow in or out of the VM700T or any other product installed in the rack VM700T 00000000 0000 8 VM700T Power line conditioner Install at a convenient location within the rack 230VAC mains power strip 0 0 0 0 0 0 0 0 Figure 1 2 Power line conditioner with rackmounted VM700T VM700T Option 01 NTSC amp Option 11 PAL User Manual 1 5 Installation 1 6 Power Up Diagnostics Benchtop Mounting For a standalone VM700T on a benchtop or for portable use apply the four adhesive rubber feet provided with the accessory to the bottom of the box at the corners Place the conditioner box in a convenient location where you can make the power cord connections Power Cord Connections Connect the Power Line Conditioner in the power line between the AC mains and the VM700T power input connector in the following order 1 Plug the output power cord connected to the box into the AC p
108. ne Conditioner for Option A1 and A2 Power Cords Table A 12 AC Electrical Characteristics Characteristic Description Voltage Range 230 VAC 10 207 to 253 VAC 50 60 Hz single phase CAT II Maximum Power Consumption 400 VA maximum 250 Watts with VM700T load Fuse Rating 3 Amp 250 V Time Delay Style 3 AG Steady State Input Current 1 5 Arms 207 VAC 1 2 Arms 260 VAC Inrush Surge Current Protected with a 3A Time Delay fuse Power Cord 161 0066 09 Euro 161 0066 10 U K 1 See the VM700T Power Requirements in Table A 5 for the operating voltage range of the VM700T without the Power Line Conditioner box inline 2 Use the part numbers listed above to order a new power cord for use with the VM700T Power Line Conditioner box Table A 13 Power Line Conditioner Mechanical Characteristics Characteristic Description Size Length 7 inches 177 8 mm Width 4 55 inches 115 6 mm Height 2 67 inches 67 8 mm without the feet attached Weight 2 lbs 13 5 oz 1 29 kg Shipping weight Approximately 3 Ibs 1 36 kg A 8 VM700T Option 01 NTSC amp Option 11 PAL User Manual Appendix A Specification Table A 14 Power Line Conditioner Environmental Characteristics Characteristic Temperature Operating Non operating Humidity Operating Non operating Altitude Operating Non operating Shake Description 5 C to 50 C 41 F to 122 F 30 C 54 F hr max gradient non condensing derated
109. ning on page 2 9 VM700T Option 01 NTSC amp Option 11 PAL User Manual Auto Mode The following aspects of Auto mode can be configured by the user Caution and Alarm Limits Auto Limit Files m locations of test signals on VITS lines and presence of zero carrier Measurement Locations file m a subset of the available measurements Selected Measurements file m times for reports to be generated and the Selected Measurements file to be used at each report time Timed Events file Setting Alarm Limits Limit files for Auto mode are located in the Auto_Limit Files directory This directory is accessed by pressing the Configure button selecting the Configure Files soft key and then selecting the Auto_Limit Files directory There are five limits file in the directory when the instrument is shipped from the factory Each limit file contains a list of all the measurements available for the Auto mode Each measurement can have limits that when exceeded produce caution or alarm messages on the display Both Caution and Alarm Limits can be set for each measurement The supplied limit files cannot be edited Their contents can be viewed by selecting touching a file Only the Exit soft key is available to close these files Use the Create File soft key to copy the contents of one of the supplied files to create a limit file you can customize The first line of the file is the title line The second line of the file 2 consecu tiv
110. nity IEC 61000 4 6 Conducted RF Immunity IEC 61000 4 11 Voltage Dips and Interruption Immunity EN55103 2 Annex B Balanced Ports Common Mode Immunity Complies with EMC provision of Radiocommunications Act per the following standard s AN NZS 2064 1 2 Industrial Scientific and Medical Equipment 1992 The instrument complies with the radiated and conducted emissions requirements of FCC Code of Federal Regulation 47 Part 15 Subpart B Class A limits 1 To ensure compliance with the above requirements only high quality shielded interface cable should be attached to this instrument High quality cables have a reliable continuous outer shield braid and foil that has low impedance connections to shielded connector housings at both ends 2 Peak Inrush Current 35 5 A 230 VAC 50 Hz 3 VM700T with Power Line Conditioner accessory used on 230 Vac power mains VM700T Option 01 NTSC amp Option 11 PAL User Manual A 5 Appendix A Specification Table A 8 Safety standards Category U S Nationally Recognized Testing Laboratory Listing Canadian Certification European Declaration of Conformity Additional Compliance Description UL3111 1 Standard for Electrical and Electronic Measuring and Testing Equipment CAN CSA C22 2 No 1010 1 Safety Requirements for Electrical Equipment for Measurement Control and Laboratory Use Compliance was demonstrated to the following specification as listed in the Official Journal of
111. ntrol knob in each mode are described in the relevant sections of this manual as the function of the control knob depends on the current mode of operation Its general operation is described here Waveform Expansion and Positioning In Waveform mode rotating the control knob affects horizontal or vertical movement of the display or horizontal or vertical expansion of the display depending on the selections of the Move Ex pand button and the Horizontal Vertical button In Expand mode the normal expansion horizontal or vertical depending on the arrow button selection is around the center of the display A specific point for expansion is selected by touching the screen at the expansion point wanted Expansion or contraction is around the touched point while the screen is touched It reverts to the center of the screen when your finger is removed from the touch screen Select Line The Select Line button assigns the function of the control knob to video signal line selection The LED in the Select Line button is on when Select Line is active To scroll through the field line by line press the Select Line button and rotate the control knob Depending on the operational mode a menu of soft keys may also appear The Select Line soft keys and the specific control knob functions are described in the relevant sections of this manual Display and Graticule Intensity Control To change the intensity of the display or the graticule hold down the Display
112. o identify signal sources in Auto mode The number is encoded in binary format onto the line of the frame specified by the Source ID line in the Measurement Locations file the default Source ID video line is line 16 During Auto mode operation if an encoded ID number is found on the Source ID line the measurement set decodes the number and searches the Video Source Identification file for a matching number entry If a match is found the accompa nying text string is printed on the line labeled Source ID in the Auto mode display If no match is found the message Not Found is printed The Video Source Identification file can contain multiple lines The range for identifying numbers is O to 16383 14 bits The text string that accompanies each number can be up to 20 characters long Inserting a Video Source Identification Number The Video Source Identification number is inserted using a VITS 200 NTSC Generator and Inserter a VITS 201 PAL Insertion Generator or similar vertical interval test signal generator Pulses 1 us wide and 1 us apart represent binary 1 s For PAL signals the encoding begins with a start bit pulse at the default location of 26 usec after the leading edge of sync You can change the start value in the Measurement Locations file but it should be an even number between 26 us and 52 us When a start pulse is found the measurement set checks that no part of the waveform preceding the start pulse is more than one
113. ociated values later To Create a Function for Timed Execution Press the Configure button Press the Function Keys soft key Press the Timed Functions icon 1 2 3 4 Press the Create Function soft key 5 Give the new function a name using the on screen keyboard 6 Press Done when you have finished entering the name From this point you can define a timed function The steps for defining a timed function are found in the VM700T RS 232 Interface Programmer Manual Basically creating a function is a learn mode operation that records into the named file all the front panel button presses soft key presses and delay times used to create the function Once created the Function Key file is then available for playback VM700T Option 01 NTSC amp Option 11 PAL User Manual 2 35 Configuring the VM700T Video Measurement Set 2 36 Video Source Identification File NOTE If a command line in a function key file is edited incorrectly or somehow becomes unknown in anyway the measurement set can hang when that bad command line is reached in running a function To Cancel a Timed Report in Progress Press the Cancel Report soft key To Cancel a Timed Function Execution in Progress Press the Function button This leaves the measurement set in whatever state it was in during function execution when you pressed the button The Video Source Identification file contains a series of number and text string pairs used t
114. of nvram ConfigFiles You can customize the operation of the measurement set to suit your specific measurement requirements and switch quickly between setups as needed to perform different operations by varying the contents of these files and sub directories All ConfigFiles subdirectories except Measurement Results contain a file named System Defaults System Defaults files are used as templates to create new files in a directory For more information about creating customized files for a directory see the discussion of Configure Operations starting on page 2 9 in this section The following pages describe the nvram ConfigFiles hierarchy and how it controls the operation of the measurement set The Source_Selection Video file and the Video_Source Files subdirectory are discussed first This is followed by a description of the contents and function of the other files and sub directories in nvram ConfigFiles The Source_Selection Video file assigns a file in the Video_Source Files directory to each of the measurement set signal sources A B and C When a given source is selected that is when its front panel Source button is on the measurement set gets parameter information from the file in the Video_Source Files directory pointed to by the corresponding entry in the Source_Selec tion Video file Figure 2 8 illustrates the relationship between the current signal source as indicated on the measurement set front panel the Source_Se
115. oft key prevents this from happening accidentally It also changes cursor mode to make the knob move the cursors if they are unlocked from the waveform Fixed IRE NTSC Only When highlighted overrides the Zero Carrier Pulse and Bar Reference selections in the current Measurement Locations file and fixes the IRE scale to O IRE 0 Volts 140 IRE per Volt This choice provides soft keys to select any of six filter characteristics or no filter When filters are engaged measurement or timing information may become less reliable Pressing the Filter Select soft key brings up the following submenu No Filter displays the waveform without any filtering default High pass Filter removes luminance from the signal The pass band is approximately 2 5 MHz to 6 MHz Low pass Filter removes chrominance from the signal The pass band is approximately 0 MHz to 1 MHz Diff Step Filter removes chrominance from the signal then displays the direction and relative size of signal transitions LF Noise 7 5 kHz 10 kHz 15 kHz removes all signal information above the specified frequency Pressing the Clamp Couple soft key brings up the following submenu Position Backporch sets the clamp position to the back porch and the clamp level to 0 0 Volts Position Sync Tip sets the clamp position to the sync tip and the clamp level to 0 3 Volts 0 29 V for NTSC Clamp Slow selects slow clamp speed This allows hum effects to be visible but is
116. om 314 to 625 In freeze mode the change is limited to the acquired area Field n Line nn NTSC Line nn PAL displays the system line specified by the soft key To change the line number select and hold the soft key to be changed turn the knob until the new line number is found and release the soft key In Freeze mode the change is limited to the acquired area Field 1 or 2 Field 3 or 4 NTSC when selected the default color frame 1 fields 1 or 2 or color frame 2 fields 3 or 4 are displayed Frame 1 2 3 4 PAL when selected the corresponding frame is included in the display The default is all four frames selected Although the Select Line button responds in all submenus the Select Line menu will not replace any submenus only the main Waveform menu Select Line always disables the Move Expand function of the control knob but it does not disable the Display and Graticule Intensity control functions VM700T Option 01 NTSC amp Option 11 PAL User Manual 3 9 Waveform Mode System Line Cursors Cursor Appearance Changing the displayed line in Waveform mode or any of the manual modes Waveform Vector Picture and Measure changes the current line for all the manual modes This line is referred to as the system line The leftmost line number on the display is the system line However both Vector mode and Measure mode can operate independently of the system line In Vector mode you can select an ind
117. on 01 NTSC amp Option 11 PAL User Manual Configuring the VM700T Video Measurement Set To Add a Report or Function to a Timed Events File Touch the icon of the file to display it for editing if it is not displayed already With the file opened turn the knob so that the insertion point of the file is highlighted touch either the Enter Report or Enter Function soft key as required The measurement set inserts a copy of the selected type above the highlighted line That may then be edited for the new event or function to be timed To Remove an Event From a Timed Events File Touch the icon of the file to display it for editing if it is not displayed already turn the knob to highlight the line you wish to delete then press the Delete Line soft key To Edit an Event in a Timed Events File 1 Touch the icon of the file to display it for editing if it is not displayed already Turn the knob to highlight the line you wish to edit Touch the item time type channel standard or file name on the line you wish to edit Turn the knob until the desired value appears Press the Accept Input soft key or touch the screen anywhere within the window You can enter a time of Undefined for an event by pressing the Enter unde fined soft key when the event s time field is highlighted An event with an undefined time is ignored This function is handy when you want to skip an event temporarily but do not want to re enter its ass
118. on ports may be configured as serial RS 232C Information DTE ports These are DB 9 male connectors The serial interface parameters given in Table 1 1 are user selectable using menu control If you are connecting the port to another terminal you will need a null modem connector to make the appropriate connections You must supply an appropriate printer cable to make the connection between the VM700T and your printer Table 1 1 Serial port protocol Capabilities Serial ports Port 0 and Port 1 Description RS 232C Connector DB 9 male configured as DTE ports Serial Interface Parameters RS 232C Baud Rate User selectable 300 600 1200 2400 4800 9600 19200 and 38400 Flow Control XON XOFF CTS RTS and None Signal Bits 7or8 Stop Bits 1or2 Parity Odd Even and None VM700T Option 01 NTSC amp Option 11 PAL User Manual Installation RS 232C Connections The two RS 232C DTE ports of the VM700T are used to output graphics and reports to a printer as well as for remote operation using a modem or direct serial connection Both connectors are accessible on the rear panel The Communications Setup file is found in the Configure Files directory press Configure and then touch the Configure Files soft key The file contains parameter settings for both serial ports Configuring the Communication Setup file is covered in Configuring the VM700T on page 2 23 The following list describes
119. onix x physical ports 2 23 Picture Mode 3 23 Port changing assignment 2 25 Port and Format Assignments 2 23 port configuration 2 26 Position Backporch 3 8 Position Sync Tip 3 8 Power Cord 1 3 power cord A 7 Power cord options A1 and A2 1 4 Power Line Conditioner accessory 1 4 accessory for A1 and A1 power cords 1 4 Index 3 Index installation 1 6 specifications A 8 Power Requirements 1 3 power switches 1 3 PowerUp function playback 1 10 Precision Mode 3 8 Print File softkey 2 16 printer Apple LaserWriter 1 15 ASCII 1 17 HP DeskJet 1 16 HP LaserJet 1 16 HP ThinkJet 1 16 parallel 1 17 printer cable A 8 printer cable configurations 1 13 Printer Connections 1 14 Printer port 2 23 printers 2 24 factory default 2 23 Printing Files 2 16 printout source text string 2 21 Printout Title 2 21 Product support contact information x Protocol 2 26 R read only directories and files 2 11 read only directories viewing 2 11 rear panel 2 5 Remote Control port 2 24 Remote Control Relay A 7 Remote Operation Auto Mode 3 26 Report port 2 23 Report Time 3 29 Reset Character 2 27 rise time measurement 3 12 root directory 2 10 RS 232 C serial ports 2 23 RS 232C DTE ports 2 5 S safety standards A 6 sampling asynchronous 2 29 synchronous 2 29 scheduled reports 2 32 Screen Memory 3 7 Select Line 2 4 3 1 3 9 Index 4 Selected Measurements 2 32 defau
120. opriate string up to 33 characters that helps identify the source Printout Title specifies text to be printed above the Source Name text across the top of printouts generated by pressing Copy This text may be set to any appropriate string up to 49 characters that helps identify the source Taken together the file names and parameter values contained in files in the Video_Source Files directory define a complete measurement and reporting environment This environment is usually associated with a particular configura tion of equipment being monitored Thus for example you might create a file in the Video_Source Files directory called tx1 which would define a measure ment environment associated with the signal from your primary transmitter To avoid confusion you should give all the files associated with this environment the same name They reside in different directories so there is no risk of name collision This arrangement whereby the file in the Video_Source Files directory defines the measurement environment while the Video Source file assigns the environ ment to a channel gives the measurement set maximum flexibility in meeting a variety of signal monitoring needs Pre defining a number of different environ ments one for each configuration of equipment to be monitored allows you to set up the measurement set for different assignments by simply changing entries in the Video Source file VM700T Option 01 NTSC a
121. or Graticule button and rotate the control knob VM700T Option 01 NTSC amp Option 11 PAL User Manual Operating Basics Equipment Signal Sources Required Bandwidth Connecting Inputs and Outputs Most VM700T measurements can only be done using either off air live signals or signals from a generator that have the appropriate test signals in the vertical interval Without the correct signal being applied the displays contain no useful information The bandwidth of the VM700T is from 0 Hz DC to approximately 6 8 MHz The VM700T has three video loop through inputs one external sync loop through two RS 232C DTE ports a Centronics compatible printer port and a VGA output connector on the rear panel The audio options 40 and 41 add appropriate connectors for application of the audio signals to the option circuitry The GPIB Interface Option 48 add a standard GPIB connector for remote control and GPIB hardcopy output Any video signal of the appropriate format may be connected to any video input for normal operation The serial ports Port O and Port 1 may be used for output to serial printers or for remote control of the VM700T A printer output port supports Centronics compatible parallel printers A standard parallel printer cable is required The monochrome VGA output provides support for viewing the VM700T display on a remote VGA monitor Certain options Camera and Component being examples require connections
122. or the Copy Report Log Control and Remote Control ports are Serial Port 0 Serial Port 1 and None Copy Report and Log may also be set to Parallel when using a parallel interface printer Control and Remote Control are not possible through the parallel port Giving a port a setting of None disables the logical port s function e g setting the Copy port to None means that no screen dump will be produced when you press the Copy button The measurement set supports either serial or parallel interface printers Possible format settings for the Copy Report Log and Remote Control ports are Epson LQ PostScript ASCII Printer HP LaserJet HP DeskJet and HP ThinkJet If you have an Epson LQ PostScript compatible or HP LaserJet printer you can use the Copy function to capture any measurement set display from the Waveform Vector Picture Measure or Auto modes If you have only an ASCII printer available set Copy Format to ASCII Printer Then the Copy function is enabled only in Auto mode which displays only text If the Copy button is pressed in Waveform Vector Picture or Measure modes when Copy Format is set to ASCII Printer the measurement beeps to indicate that the Copy function is not available 2 24 VM700T Option 01 NTSC amp Option 11 PAL User Manual Configuring the VM700T Video Measurement Set To change a Port or Format Assignment 1 Select the parameter you wish to change by rotating the knob until the param
123. oscillator of the measure ment set must be completely stable Power on the measurement set at least 20 minutes before performing this procedure Test Equipment Required m Television signal generator NTSC or PAL with full field and burst capability accurate to 1 Hz m Coaxial cable 75 Q high quality noise free 1 meter length m Termination 75 Q precision BNC Specification Checked Burst frequency accurate to 10 Hz using the internal frequency reference NOTE The frequency of the signal generator used must be accurate to 1 Hz to ensure a valid limit check reference on the burst frequency measurement Procedure Measuring Burst Frequency 1 Disconnect all signal inputs from the measurement set 2 Press the Measure hard key and touch the Video soft key if necessary to recall the Video measurement menu 3 Touch the Burst Frequency soft key With no signal applied the measure ment set displays a warning message that tells you to check the signal source because a signal cannot be found The burst frequency measurement starts automatically after 3 seconds the Loss of Sync indicator blinks VM700T Option 01 NTSC amp Option 11 PAL User Manual Appendix B Performance Verification 4 Press the Menu hard key and touch the Reference soft key in the menu display 5 Touch the Zero Set soft key to set the measurement reference for the internal oscillator 6 Connect the signal generator full field a
124. ound information in the sync pulse When sound information is contained in the sync pulse Sound In Sync must be selected or else the measurement set will display the message Loss of sync When Sound In Sync is selected less of the sync pulse is available for synchronization which makes the signal timing more susceptible to noise and jitter The Sound In Sync soft key only affects Waveform mode For all other manual modes Sound In Sync is enabled with the SIS Present yes parameter in the active Measurement Locations file Change Sampling toggles between synchronous asynchronous and free run sampling For a stable source use synchronous mode for an unstable source a VCR for example first use asynchronous mode If this does not work use free run mode In free run mode line or field syncs are not used and you lose TV timing references Noise 0 dB 30 10 dB The Noise choice sets the decibel value for noise reduction Highlight the soft key and rotate the knob to change the decibel value Noise reduction is enabled with the Average button Noise reduction up to 30 1 dB in 3 01 dB steps is available Larger noise reduction settings require a longer settling period Extra Functions Pressing the Extra Functions soft key brings up the following submenu Gain allows direct control of the hardware used in acquisition Gains of 0 25 to 7 75 in steps of 0 25 are available A larger gain gives a smaller input range but more reso
125. ower input connector of the VM700T 2 Plug the AC mains power cord into the AC input connector of the power line conditioner box 3 Plug the AC mains power cord into the 230 Vac mains source The measurement set as received from the factory is configured to skip diagnostics at power on and it starts up in the quick start mode with the Waveform application running When configured to skip the diagnostics you can run diagnostics at power on by pressing and holding in the Menu button while turning on the front panel power switch The measurement set then starts up in the low level diagnostics mode with the VM700T startup menu as shown in Figure 1 3 Use the following procedure to force an auto reset All the diagnos tics then run at power on regardless of the power on diagnostic configuration 1 Turn off the measurement set 2 Hold down the Menu button and use the front panel STBY ON switch to power on the instrument 3 After the instrument beeps twice release the Menu button The VM700T displays the VM700T Startup Menu 4 Inthe menu use the control knob to select R INSTRUMENT RUN MODES and press the Select Line button A second diagnostic menu is then displayed 5 In this menu select A AUTO RESET and press the Select Line button This runs the full set of internal diagnostics Check that all tests pass as they run After the diagnostics complete the measurement set initializes in the Waveform mode unless there
126. ox 3 Either press the Accept Input soft key or touch the screen anywhere inside the window 4 Press the Update Exit soft key to save the changes Diagnostic Errors File When high level diagnostics are run any errors detected are written to the Diagnostic Errors file The contents of this file can be printed using the Print File soft key or the file can be deleted using the Delete soft key If diagnostic errors appear refer to the servicing information found in the VM700T Video Measurement Set Service Manual The maximum capacity for the Diagnostic Errors file is 100 lines in a circular file scrolling past the last entry returns to the top line of the file If the number of errors detected causes the file to exceed this length the earlier results are scrolled out of the file buffer When this occurs the Diagnostic Errors file includes a message stating that some of the text has been scrolled out of the file Diagnostics Selection The Diagnostics Selection file lists the diagnostics the measurement set can File perform at power on If installed options require additional diagnostics those are also listed As received from the factory all diagnostics are selected but bypassed by default for a quick startup Refer to Setting the Power Up Mode on page 1 9 for information on reconfiguring the measurement set to run diagnos tics at power on Any diagnostic can be deselected by rotating the control knob until the diagnostic is hi
127. peak 15 minutes total cycling time per axis for three axes followed by a 10 minute dwell at the identified resonance frequency or at 33 Hz if none is found 50 g s 1 2 sine 11 ms duration 3 shocks per surface 18 shocks Qualified under NTSB Test Procedure 1A Category II 30 inch drop Up to 95 at or below 50 C 122 F Up to 95 at or below 60 C 140 F VM700T Option 01 NTSC amp Option 11 PAL User Manual Appendix A Specification Table A 7 EMC compliance Category EC Declaration of Conformity Australia New Zealand Declaration of Conformity EMC FCC Description Meets intent of Directive 89 336 EEC for Electromagnetic Compatibility and Low Voltage Directive 73 23 ECC for Product Safety Compliance was demonstrated to the following specifications as listed in the Official Journal of the European Communities EN55103 1 2 Product Family Standard for Audio Video Audio Video and Entertainment Lighting Control Apparatus for Professional Use Environment Class E2 commercial and light industrial Part1 Emissions EN 55022 Class B radiated and conducted emissions EN55103 1 Annex A Radiated Magnetic Field Emissions EN55103 1 Annex B Inrush Current EN6100 3 2 AC Power Line Harmonic Emissions Part2 Immunity IEC 61000 4 2 Electrostatic Discharge Immunity IEC 61000 4 3 RF Electromagnetic Field Immunity IEC 61000 4 4 Electrical Fast Transient Burst Immunity IEC 61000 4 5 Power Line Surge Immu
128. r Jan 30 17 44 58 2001 Figure 2 7 Time Configure menu To Set the Time and Date 1 Select touch the Time soft key to display the measurement set calendar and clock The clock continues to run but the numbers in the soft keys do not advance with the time and display the time that was present when the Time Configure menu was selected Select the Year Month Date Hour Minute or Second soft key Rotate the control knob to set the year month date hour minute or second Set the minute and second time 30 seconds or so slightly ahead of the reference clock time so that you can set the time exactly to your reference time Select the Load Time soft key to enter the new time and date at the exact time you have set for the clock This enters the time and restarts the clock at that time After the new time and date have been loaded press the Configure button to exit the Time display and return to the mode previously in effect Press Configure again to return to the top Configure display VM700T Option 01 NTSC amp Option 11 PAL User Manual 2 17 Configuring the VM700T Video Measurement Set Directory Structure Source _Selection Video 2 18 File VM700T Video Measurement Set operations are controlled by means of a hierarchy of files and directories that starts with the Video Source file in the nvram ConfigFiles directory and extends to other files in sub directories
129. racters at the cursor position The cursor can be moved left or right by turning the control knob m To delete characters move the cursor to the right of the character to be deleted then press the Back Space key m Pressing the Set1 soft key allows you to enter numerals and punctuation characters Pressing the Set2 soft key allows you to enter various special characters Pressing the Shift key allows you to enter uppercase characters or more punctuation characters in the case of the shifted versions of Set1 Both the Set1 and Set2 character keys and the Shift key lock when selected Set1 and Set2 are unlocked by touching the same key again or touching the unselected key of the pair Shift is unlocked by touching Shift again 2 Touch Cancel to quit the editing process without entering the new text or touch Done when you are finished to enter the new title line text To Change a Parameter in a File Use the control knob to scroll the line containing the parameter use wish to change to the center of the display window The active line to edit is highlighted made brighter Refer to Communication Setup File on page 2 23 for an example of this type of editing 1 Touch the parameter in the highlighted line you wish to change A box appears around the selected parameter 2 Rotate the control knob to scroll through the values or selections available for that parameter 3 Touch the Accept Input soft key or touch the screen anywhere insi
130. riod Tektronix at its option either will repair the defective product without charge for parts and labor or will provide a replacement in exchange for the defective product In order to obtain service under this warranty Customer must notify Tektronix of the defect before the expiration of the warranty period and make suitable arrangements for the performance of service Customer shall be responsible for packaging and shipping the defective product to the service center designated by Tektronix with shipping charges prepaid Tektronix shall pay for the return of the product to Customer if the shipment is to a location within the country in which the Tektronix service center is located Customer shall be responsible for paying all shipping charges duties taxes and any other charges for products returned to any other locations This warranty shall not apply to any defect failure or damage caused by improper use or improper or inadequate maintenance and care Tektronix shall not be obligated to furnish service under this warranty a to repair damage resulting from attempts by personnel other than Tektronix representatives to install repair or service the product b to repair damage resulting from improper use or connection to incompatible equipment c to repair any damage or malfunction caused by the use of non Tektronix supplies or d to service a product that has been modified or integrated with other products when the effect of such modification
131. rsor If it is not the Time from L to R readout will indicate the time duration of a frame of video minus the time interval between the cursors Also measuring time durations with cursors is not limited to a single line width or a field Cursors can measure up to one full frame before they wrap around VM700T Option 01 NTSC amp Option 11 PAL User Manual 3 13 Waveform Mode Using Cursors to Measure Frequency Using Cursors to Measure Amplitude 3 14 Sine wave frequencies can be easily measured with cursors The following procedure produces the best accuracy using asynchronous sampling and with averaging on to reduce the noise To Measure a Sine Wave Frequency Expand the desired sine wave for example color burst so two cycles fill the majority of the screen Position the sine wave zero crossings to occur at the horizontal reference line Select the Cursors soft key and position a zero crossing on the cursors Select Lock Left and move the waveform to the left one full cycle two zero crossings and position the zero crossing on the right cursor Select Lock Right The sine wave frequency is now displayed in the Frequency 1 T readout Compare this value with the freq MHz value in the first cursor status line third line from the bottom in the status area The Cursors mode provides a quick tool to make amplitude measurements and indicates measurement results in the same units as the vertical scale to three deci
132. set prompts you to select a file Select touch the icon corresponding to the file to be deleted Note only user created files can be deleted The icon containing the name of the selected file switches to reverse video and begins to disintegrate from the display while the measurement set beeps at one second intervals The disintegration deletion process lasts six seconds It can be stopped by touching the screen inside the directory window or by touching the Delete soft key a second time Halting the deletion process before its completion has no effect on the file To edit a file simply touch the icon corresponding to the file you wish to edit This displays the contents of the file for editing Within the file there are only certain fields that a user may change the value of edit You may be able to edit a line edit a selected parameter or make a choice of selected or not selected for a measurement or diagnostic You can view the complete contents of the file by rotating the control knob to scroll the file lines up or down The line in the center of the window should appear highlighted If it is not increase the Display Intensity until it is brighter than the other lines To edit a line within an editable file turn the control knob until the item you wish to edit is highlighted then touch the line on the screen There are four possible responses to this touch m Ifthe item that you touch is not editable the measurement set produces
133. sity adjustments are also made with the control knob While the Display button is held in the control knob varies the intensity of the vector menu information and any other text on the display not associated with the graticule While the Graticule button is held in the control knob varies only the intensity of the graticule Pressing the Menu button either displays the Vector menu or toggles it off 1f it is already displayed The Vector Menu is shown in Figure 3 7 V Axis Switch PAL only inverts the vector around the V axis for a line with a V axis burst It has no effect on lines with a V axis burst Display Select V PAL only toggles between display of lines with a V axis a V axis or both axes default Vector Menu Change Burst Noise 75 Bar Setup Reference 15 05 dB Col Burst Reference Submenu Burst in Burst in Burst in Burst in Source Ch A Ch B Ch C Figure 3 7 Vector mode menu VM700T Option 01 NTSC amp Option 11 PAL User Manual Vector Mode Change Setup NTSC only toggles the graticule for a proper display of a color bar signal with either 7 5 setup Setup 7 5 or no setup Setup 0 Burst Reference brings up the following submenu to select the reference source for color burst Burst in Source sets the color burst reference to the current signal source Burst in Ch A B C the color burst reference is set to the
134. t B where A pk pk 2 2 2xfreq and B offset The second and third cursor status lines display values relative to the cursor positions and to the horizontal reference line Moving Cursors Lock Left When cursors are displayed a cursor can be moved from its default position in Lock Right Center Left the middle of the display by locking it to a point on the waveform Use the and Center Right control knob to position the waveform under the cursors then lock one of the cursors with the Lock Left or Lock Right soft key You can now move both the cursor and the waveform horizontally If the Left or Right cursor is moved off the screen and lost from view it can be easily brought back on the display by selecting the Center Left or Center Right soft key as appropriate With a cursor locked to the waveform selecting the corresponding Center soft key will horizontally center the cursor and the point on the waveform to which it is locked This technique may be used to toggle between any two points in a frame Using Cursorsto Cursors can help you make extremely accurate time measurements over short or Measure Timing very long intervals For example you can measure rise times or the length of up to two fields of video To familiarize you with cursors the following text explains how to measure the rise time of the leading edge of horizontal sync While learning to use cursors you ll find it much easier to use the stable output of a test signal
135. t generation function execution process is discussed in detail later in this section The VM700T can be set to log print limit violations A one line report from the Auto mode display is logged any time a measurement result crosses the Alarm Limit boundary a specified consecutive number of times both when the measurement goes outside the limit or comes back within the limit Enabling Disabling Logging The automatic logging of violated limits can be enabled or disabled by setting the Serial And Printer Setup file found in Configure mode Log Port entry to Port 0 or Port 1 enabled or None disabled the default setting If the Option 48 GPIB Interface is installed the logging port may be set to GPIB The VM700T Auto mode measurements may be executed individually or as reports while in remote operation Details of making Auto mode measurements remotely are discussed in the VM700T RS 232 Interface Programmer Manual Configuring Auto Mode 3 26 Each input SOURCE channels A B and C has a file assigned to it in the Video_Source Files directory that specifies other files to use for defining measurement limits measurement signal locations and selected measurements System default files are provided that may be used as templates to create customized measurement configuration files Basic information on each of these files and how to use the Configure mode directory structure is found in Configuring the VM700T Video Measurement Set begin
136. t s reference where applicable When the user definable limits are violated the violated limits are printed on the screen and an indicator appears between the measurement result readout and the Violated Limits Lower column If the indicator is a single asterisk a Caution Limit has been violated If the indicator is a double asterisk an Alarm Limit has been violated If a measurement cannot be made for some reason the result readout is replaced with a line of dashes and is considered a limit violation Setting the Caution and Alarm Limits is discussed later in this section VM700T Option 01 NTSC amp Option 11 PAL User Manual 3 25 Auto Mode Comments Column Timed Events Violated Limits Logging Remote Operation Beyond the Violated Limits columns Auto mode prints messages primarily for measurements that cannot be performed The comment describes the nature of the problem the VM700T has in making the measurement to assist you in rectifying the problem If the measurement is one that will not normally be available from the signal being measured a new Selected Measurement file can be created to customize the measurements list to those of interest in your application Auto mode has a utility for generating reports of specified measurements at specified times or for automatically executing functions at specified times The report is in the same format as the Auto mode display Configuring the repor
137. t intersects the cursors NOTE If the waveform point that the amplitude reference marker is attached to is moved off the display the amplitude reference marker does not remain attached to the waveform Instead it locks to the vertical scale at the point where the waveform left the display So if the level of the signal at the point where the amplitude reference marker was formerly anchored which is now off screen changes the amplitude reference marker will not track that change It may sometimes be necessary to decrease the horizontal expansion to keep both amplitude reference markers on the display when trying to find a stable point on live video to anchor them Position the sync edge under the cursors so the point readout is 90 and select the Lock Left soft key This locks the left cursor to the 90 point of the sync edge Now when you move the sync edge horizontally the left cursor moves with it Notice that the left cursor is a solid vertical line and the right cursor which is still centered in the display is a dashed line Now simply move the waveform so the point readout indicates 10 The Time from L to R readout now indicates the rise time of the leading edge of sync Figure 3 3 illustrates the right cursor sitting at the 10 point and the left cursor locked to the 90 point of the sync edge Note that touching either the Center Left or Center Right soft key will move the corresponding cursor to the center of the displ
138. tem line through the frame for a line containing color bars and displays it if found Vector Line when highlighted changes the Vector mode line independently of the system line Field n Line nn NTSC Line n PAL displays the line specified by the soft key To change the line number select and hold the soft key to be changed turn the knob until the new line number is found and release the soft key VM700T Option 01 NTSC amp Option 11 PAL User Manual Measure Mode Pressing the Measure button on the front panel puts the VM700T into Measure mode In this mode the VM700T provides interactive control of measurement parameters as well as graphical display and digital readouts of measurement results Measure Mode Menu Operation Measure mode is used for making interactive measurements of NTSC and PAL signal properties and accessing the measurements of any installed options as shown in Figure 3 8 This is different from Auto Mode which is used for automatic non interactive and continuous execution of user specified measurements NTSC and PAL video measurements available through Measure mode are described in detail in the VM700T Option 01 NTSC Measurements User Manual and the VM700T Option 11 PAL Measurement User Manual The Video Option and Audio Option measurements are described in the individual option user manuals
139. the PAL standard is used To change the standard in effect for a channel rotate the control knob until that channel s line is highlighted intensified then select the entry under the Video Std column by touching it Rotate the control knob until the desired standard appears Touch the Update amp Exit soft key to enter the change into the file In Figure 2 8 the current video source as indicated by the front panel Source button determines which entry is read from the Source_Selection Video file This in turn determines which file is read from the Video_Source Files directory This file determines which files are used to get operating information from each of several directories VM700T Option 01 NTSC amp Option 11 PAL User Manual 2 19 Configuring the VM700T Video Measurement Set Video Source A B or C Front Panel Button Source_Selection Video File Video_Source Files Directory m gt Auto Sync Source gt Source Name nr gt Printout Title Auto_Limit Files gt File Directory gt Measure_Limit Files I gt File Directory __ Measurement Locations I gt File Directory Selected Measurements Ll File Directory Figure 2 8 How the VM700T Video Measurement Set gets parameter information 2 20 VM700T Option 01 NT
140. titute the serial port configuration lines of the Communication Setup file These lines control the formatting of data when the measurement set is being operated remotely and when it is being used to control a remote device on the Control port The configuration parameters for Serial Port 0 and Serial Port 1 and their possible values are as follows Protocol can be set to None or SLIP serial line internet protocol Baud Rate can be set to 300 600 1200 2400 4800 9600 19200 or 38400 Flow Control can be set to XON XOFF software handshaking to control data flow CTS RTS hardware handshaking to control data flow or NONE no flow control m Character Size can be set to 7 or 8 bits 2 26 VM700T Option 01 NTSC amp Option 11 PAL User Manual Configuring the VM700T Video Measurement Set m Parity can be set to None Odd Even Zero or One m Reset Character can be set to None or Ctrl A through Ctrl Z Note the Reset Character for an Apple LaserWriter is Ctrl D m Carrier Detect can be enabled or disabled The default Port 1 settings are suitable for a serial Epson LQ 570 printer To Change a Port Configuration Parameter Value 1 Select the parameter you wish to change by rotating the knob until the parameter is highlighted then touching the screen over the parameter value A box appears around the item to edit 2 Rotate the control knob until the desired parameter value appears in the edit b
141. to specific inputs for correct operation Refer to the option manual when connecting signals to make those option measurements VM700T Option 01 NTSC amp Option 11 PAL User Manual 2 5 Operating Basics 2 6 VM700T Option 01 NTSC amp Option 11 PAL User Manual NS AAA AAA Configuring the VM700T Video Measurement Set The Configure button brings up a display shown in Figure 2 3 that provides access to utilities that allow you to edit files that control many aspects of the VM700T Video Measurement Set operating environment and information on the firmware installed in your instrument This section describes the use of these utilities The measurement set gets important operating information from configuration files stored in its nonvolatile memory These files are arranged in a directory structure accessed using the front panel Configure button and the touch screen menu choice These files control such areas of measurement set operation as the following m which measurements are performed in Auto mode m what measurement limits should be in effect for Auto mode and Measure mode measurements for example what values should be used as upper and lower bounds before a caution or alarm is triggered m the timing of Auto mode reports and timed functions m which line s each Auto or Measure mode measurement will be made on and where applicable at what position within the line s m which output ports to send printouts scr
142. tory structure and two soft keys Print File and Leave Directory A dual standard instrument also has the additional soft key of Switch NTSC PAL displayed with the selected choice identified as either NTSC Files or PAL Files If there are more directories or files than can be displayed in the window area of the screen designated for directory icon displays use the control knob to scroll up or down to display the remaining choices The exact number of directories and their names depends on the installed options All the directories are given in alphabetical order from left to right top to bottom Each of the VM700T option manuals provides details on configuring the files for the options If you are unfamiliar with the terms file and directory the following may help A file is a collection of information A directory is a structure that can contain zero or more files or other directories Directories are organized in a tree structure Touching the icon of a directory displayed in a window opens that directory This is also known as going down the directory tree Pressing the Leave Directory soft key closes the directory and displays the next higher directory in the directory structure This is also known as climbing up the directory tree VM700T Option 01 NTSC amp Option 11 PAL User Manual 2 9 Configuring the VM700T Video Measurement Set To Enter a Directory Touch the icon showing the name of the directory you wish
143. tton a second time The remaining functions are turned off either by pressing the button a second time or by selecting a different operational mode in the top row Menu The Menu button displays a menu of soft keys on screen In some cases touching a soft key displays a submenu of additional soft keys when it is selected VM700T Option 01 NTSC amp Option 11 PAL User Manual 2 3 Operating Basics 2 4 Control Knob Help The Help button activates the Help function When Help is turned on pressing a button or selecting a soft key displays a brief explanation of the button or soft key all buttons and soft keys except Help lose their normal function The LED on the Help button flashes while Help is active Help is turned off by pressing the Help button a second time Configure and Function The Configure button and its usage are discussed in Configuring the VM700T starting on page 2 7 The Function button and its usage are discussed in the VM700T RS 232 Interface Programmer Manual Copy The Copy button sends a copy of the display to the print spooler tempo rary memory space to queue for printing The LED in the Copy button will flash as long as the copy remains in the spooler To delete the copy from the spooler press the Configure button while the Copy LED is flashing and select the Cancel Copy soft key This soft key only appears in the Configure menu when a copy is pending in the spooler The specific functions of the co
144. u have changed some factory default values be sure the file contains the values shown in the following example The following partial listing shows the values that should be set in the Commu nications Setup file in order to use an Epson LO 570 serial printer Copy Port 1 Port Serial Port 1 Protocol None Format Epson LO Baud Rate 9600 Report Flow Control CTS RTS Port Serial Port 1 Character Size 8 Format Epson LO Parity None Log Reset Character None Port None Carrier Detect disabled Format Epson LO Remote Port None Serial Port 0 Making Your Own Serial LQ Cable If the correct serial printer cable is not readily available one can be easily constructed A male 25 pin DB 25 connector a female DB 9 connector and an appropriate length of four conductor cable are the materials needed for the cable Table 1 4 lists the wiring connections for making a cable to use with an Epson LQ serial printer VM700T Option 01 NTSC amp Option 11 PAL User Manual Installation Table 1 4 Epson LQ serial cable connections Male DB 25 connector pin number Female DB 9 connector pin number Epson LQ end VM700T end 1 shield ground shield ground 3 RD 3 TD 20 DTR 8 CTS 7 signal ground 5 signal ground Connecting an Apple In Configure mode make the following VM700T setups when connecting a serial LaserWriter interface Apple LaserWriter to one of the VM700T serial ports Set the Copy Port and Report Port to Seri
145. u ne en ee ee een 3 4 A A A lege ee ee RN 3 4 SYNC nn a A ag ran rn Ba da Ss eee ice E 3 6 Noise 0 dB 30 10 4B preerie 3 3 fate edd td an 3 7 Extra FUNCUONS dendr aro aa a aa ie 3 7 Filter select ai er a A le Sede goae ele edited 3 8 Clamp Couple 2 20 22 vie ng tee ETOR Ha Ba GA a YS 3 8 Select Line iii GG aes Bd Oe Ce e ei 3 9 System Line u liado dida ei 3 10 CUTS OLS se A aneignen RS a ee ee leere 3 10 Cursor Appearance an naeh tala 3 10 Eursor Status Lines ci ee A 3 11 Moving Cursors Lock Left Lock Right Center Left and Center Right 3 11 Using Cursors to Measure Timing 0 0 00 cee eee eee 3 11 Using Cursors to Measure Frequency 0 00 0 c eee ee eee 3 14 ii VM700T Option 01 NTSC amp Option 11 PAL User Manual Table of Contents Using Cursors to Measure Amplitude oooooooccooccoom moo 3 14 Vector Moden reitet 3 17 Display A ee bee 3 17 Control Knob sa ria A tada 3 18 Meni a I ee 3 18 Select AA ER 3 20 Meas ure Mode 0000 o ENRE a a Saale aaa oe 3 21 Measure Mode Menu Operation 0 0 cece eee eee eee eee 3 21 Video Option Measurement Menu Operation 00 0008 3 22 Picture Mode us 000us 4004 RER ES HO See AET 3 23 Auto Mole ee een 3 25 Auto Mode Display gis cod arrasa 2200 PAG er BF a 3 25 Measurement Identification 0 eee eee eee eee ee 3 25 Violated Limits Indication 0 00 cee cece ee eee eee eee 3 25 Comments Colu
146. us lines 525 line NTSC No Filtering Synchronous Sync Source units Slow clamp to 0 00 V at 6 63 uS Frames selected 1 2 Figure 3 1 Typical NTSC Waveform display The horizontal graticule scale is calibrated in us microseconds or ns nanosec onds as appropriate for the horizontal gain setting The horizontal scale units indication is centered in the topmost status line just below the horizontal scale Line Identification A readout of the displayed line number is always shown If a single line or a fraction of a line of video is displayed the readout is located just above the horizontal graticule scale and somewhere to the right of the vertical scale wherever it fits best If more than one line is displayed the indicator is found to the right of sync tip for each line When multiple lines are displayed the leftmost line number is the system line The system line is the line that will be displayed when switching between the manual modes Waveform Picture Measure and Vector mode when System Line is selected Horizontal Reference Line The horizontal reference line is a stationary line across the display provided for checking and comparing signal levels It also provides a reference for measuring amplitudes in Cursors mode and can be used to get a quick measure of tilt on a bar top 3 2 VM700T Option 01 NTSC amp Option 11 PAL User Manual Waveform Mode Status Lines The lines of text directly below the horizontal graticule
147. useful for coping with large DC offsets on an input signal Clamp Fast selects fast clamp speed This removes DC offset hum and bounce effects from the signal DC Coupling selects DC coupling no clamping VM700T Option 01 NTSC amp Option 11 PAL User Manual Waveform Mode Select Line Manual Adjust brings up the following submenu Position adjusts the horizontal clamp position within a line Level adjusts the clamp voltage level from 1 28 V to 1 27 V in 10 mV steps Adjustments outside 300 mV may cause APL measurement problems Clamp Slow selects slow clamp speed This allows hum effects to be visible but is useful for coping with large DC offsets on an input signal Clamp Fast selects fast clamp speed This removes DC offset hum and bounce effects from the signal DC Coupling selects DC coupling no clamping Duration selects 0 5 ms 0 67 ms 1 0 ms or 2 0 ms clamp gating widths Wide gating widths provide better noise immunity but signal distortions may not provide a wide enough sustained level In Waveform mode pressing the Select Line button switches the control knob to a digital line select function When either no menu or the Waveform menu is displayed pressing Select Line also displays the Select Line menu which is structured as follows Field Toggle toggles the system line to the other field for PAL 313 lines if the system line was from 1 to 313 313 lines if the system line was fr
148. ware upgrade You will have two soft keys in the display Continue and Cancel If you made a typing mistake or entered an invalid option key for your instrument an error message appears in the display see Figure C 3 Follow the directions given in the message VM700T Option 01 NTSC amp Option 11 PAL User Manual C 3 Appendix C Adding Options C 4 Tektronix Identification XXXXXXXX Software Identification Number xxxxxx Current Option Key XXXX XXXX XXXX New Option Key abcdef gxyz MY Error New Option not valid for this instrument Please verify the Key and try again Touch the screen to continue Figure C 3 Error message for invalid Option Key 7 Touch the Continue soft key if the list of options is correct If the list of options is not correct touch Cancel to prevent the new option configuration from taking place Verify that you used the new Option Key rather that another that may be valid for your instrument This might occur if you have Option Key numbers from previous firmware upgrades When Continue is pressed the VM700T Video Measurement Set reconfigures its firmware and files structure to the new option list Some internal files will have new lines added where needed for the new options When reconfiguring finishes the measurement set runs the complete set of instrument diagnostics before the system is initialized VM700T Option 01 NTSC amp Option 11 PAL User Manual
149. y Communication Setup Diagnostics Selection Password if enabled in hardware Video_Source Identification and Video Source The sixth file is the IpConfig file in the nvram directory one level higher than the main Configure Files directory The IpConfig file contains system addresses used for remote file transfer FTP and is discussed in the VM700T RS 232 Interface Programmer Manual Creating and Deleting You create a file in the Configure Files directory by copying the contents of one Files file to another named file Since the factory installed default files are not editable you must create your own file to make a configuration change To Create a File Enter the Configure Files directory by pressing the Configure button followed by the Configure Files soft key then touch the icon corre sponding to the directory in which you want to add the new file In a new file system the only file you will see is System Default The System Default file is not editable but it is the template to be used to create an editable file Once you have created other files you can edit them or choose to copy one of them as the template for a new file see Figure 2 5 1 Press the Create File soft key Doing so displays the prompt Please select a file as template at the top of the display Touch the icon corresponding to the file you want to copy normally System Default This copies the contents of the selected file To allow you to name the new cop
150. y a box appears in the center of the directory window and a keyboard appears below it as shown in Figure 2 6 The characters you select type appear in this box VM700T Option 01 NTSC amp Option 11 PAL User Manual 2 11 Configuring the VM700T Video Measurement Set system Test _Setl Default NTSC Files In nvram0 ConfigFiles Selected Measurements NTSC Delete Switch Create Re Print Leave NTSC File Director PAL RE File Figure 2 5 Creating a new file 2 Type the new file name observing the following rules and noting the special 2 12 uses of some characters and keys m Spaces are not allowed in file or directory names use an _ underline or dot to separate words in a name Forward slash and reverse slash 1 are not permitted in the file name When neither Set1 nor Set2 is highlighted you can type lowercase and uppercase English alphabet characters The lowercase Set1 character set allows you to enter numerals and punctuation characters The uppercase Setl and the Set2 character set allow you to enter various special characters and accented characters for use in non English language file names Both the Set1 and Set2 character keys and the Shift soft key lock when selected Set1 and Set2 are unlocked by touching the same key again or touching the unselected key of the pair Shift is unlocked by touching Shift again
151. y control screen as shown in Figure C 2 Several lines of information are shown related to the instrument identification number the software identification number and the option authorization key for your instrument Note the option authorization key and record it for use when placing an order for a firmware upgrade VM700T Option 01 NTSC amp Option 11 PAL User Manual C 1 Appendix C Adding Options 3 Contact your local Tektronix representative to place your order for the new option You will be asked for the option authorization key of your measure ment set as part of the order process Tektronix Identification XXXXXXXX Software Identification Number xxxxxx Current Option Key XXXX XXXX XXXX New Option Keyi JEJ JJ de do AAEE ER ER EHE EN SLI LJ ED EB Cancel seta seta Space shit Done Figure C 2 Option Key control menu After your order is processed you will be sent the firmware upgrade kit with your new option authorization key The firmware upgrade kit includes a new manual for the ordered option When an option upgrade requires additional circuit boards those are also in the upgrade kit with instructions for installation Activating the New Options C 2 The following procedure explains how to activate your new option configuration after you receive a new option key If the option upgrade requires addition circuit boards two examples are the Audio Option

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