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TDS 200-Series Digital Real-Time Oscilloscope Service Manual

1. Display module Ribbon cable Figure 6 19 Removing the display module Installation Use this procedure to install the display module 1 Route the display ribbon cable through the opening in the internal chassis as shown in Figure 6 20 If installing a new module fold the ribbon cable as shown Place the tabs on the right side of the display module into the slots of the internal chassis located under the front panel board It is not necessary to remove the front panel board Refer to Figure 6 20 Route the backlight cable through the opening in the internal chassis as shown in Figure 6 20 Lower the left side of the display module into the internal chassis until the two securing tabs lock on to the display module Note that the backlight cable protruding from each end of the module must align with the cutouts of the inner chassis Refer to Figure 6 20 Reconnect the display module ribbon cable at J202 or J102 on the main board by pushing the cable straight down into the connector Refer to Figure 6 17 TDS 200 Series Digital Oscilloscope Service Manual 6 29 Maintenance Left side view of internal chassis Backlight cable to I Display module Reconnect the backlight cable to the power supply module Refer to Figure 6 14 Place the entire internal assembly into the front cover Refer to Figure 6 16 Use the installation procedures
2. 6 8 Installing the rear feet 6 9 Installing a front case label 6 10 Installing a new label 6 11 Removing the handle 6 12 Installing the handle 6 13 Removing and installing the rear cover 6 15 Removing and installing the front feet 6 16 Removing and installing the EMI clips 6 17 Removing the flip stand 6 18 Installing the flip stand 6 19 Line fuse location 6 20 Removing the power supply module 6 21 Installing the power supply module 6 22 Removing and installing the internal assembly 6 24 Installing the copper mesh grounding tube 6 25 Main board removal 6 26 Main board installation 6 27 Removing the display module 6 28 Installing the display module 6 30 Removing the front panel module 6 31 Installing the front panel module 6 32 Removing and installing the keypad 6 33 Removing the display shield 6 35 Installing the display shield 6 36 Measuring the backlight voltage 6 41 Exp
3. 10 from 45 Hz through 66 Hz CAT Power Consumption TDS 210 and TDS 220 TDS 224 Less than 20 W Less than 25 W Fuse 1A T rating 250 V TDS 200 Series Digital Oscilloscope Service Manual 1 5 Specifications Table 1 2 General specifications cont Environmental Temperature Operating 0 C to 450 C Nonoperating 20 C to 60 Cooling Method Convection Humidity 40 C or below lt 90 relative humidity 1 C to 50 C lt 60 relative humidity Altitude Operating 3 000 m Nonoperating 15 000 m Random Vibration Operating 0 31 grms from 5 Hz to 500 Hz 10 minutes on each axis Nonoperating 2 46 grms from 5 Hz to 500 Hz 10 minutes on each axis Mechanical Shock Operating 50 g 11 ms half sine Mechanical Sue Weight approximate 3 6 kg 8 0 Ibs Certifications and compliances EC Declaration of Meets intent of Directive 89 336 EE C for Electromagnetic Compatibility meets the requirements of FCC Conformity Code of Federal Regulations 47 CFR Part 15 Subpart B Class A TDS 210 TDS 220 amp CISPR 11 Class A Electromagnetic radiated and conducted emissions TDS 224 EN 50082 1 European Community Requirements IEC 61000 4 2 electrostatic discharge IEC 61000 4 3 radiated susceptibility IEC 61000 4 4 power line fast transients IEC 61000 4 5 power line surge immunity IEC 61000 4 6 conducted immunity to RF fields IEC 61000 4 11 voltage dips interrupts
4. DC voltage setup 2 DC voltage source Digitizing oscilloscope 0000000 Dual banana to BNC adapter BNC cable Sinewave generator setup Leveled sine wave generator Digitizing oscilloscope 00 0 O gg CJ 0000000 50 feedthrough terminator Table 5 2 and 5 3 list BNC cable O Oro oa Edge setup Four Channel Square wave Digitizing oscilloscope generator 50 Q feedthrough terminator Table 5 2 and 5 3 list BNC cable Figure 5 2 Adjustment setups TDS 200 Series Digital Oscilloscope Service Manual Adjustment Procedures Adjustment Procedure Use this procedure to load new calibration constants 1 Bow oS Turn on the instrument and let it warm up for at least ten minutes Enable the Service menu as described on Page 5 2 Press the UTILITY button and select Service from the menus Select FCAL INIT to initiate the factory calibration routine You are now in step 1 of the procedure As indicated by Step 1 in Table 5 2 on page 5 5 TDS 210 and TDS 220 or Table 5 3 on page 5 7 TDS 224 connect a 0 0 VDC source to the channel inputs Press FCAL STEP to load the calibration constant for step 1 Follow the screen prompts along with Table 5 2 on page 5 5 TDS 210 and TDS 220 or Table 5 3 on page 5 7 T
5. Factory Setup xcu visas eee wee sate viele dasa m Eee rex vs Theory of Operation 4 rp rrr rh TE RI Board ehe ERR RI TEMERE ECRIRE ES Power Supply 554 SARs Coeds deleted Display Module 2 25 95 Reed to eS ATUS ene Front Panel tou RR RENS ee bode eee E PERSA NS ATO Extension Modules 9044 40084 deed e XX EQ Performance Verification Performance Verification Test esee dence sis hh DRE eee GINA qaid d tes a eius Performance Verification Adjustment Procedures Adjustment Required 1 4 2 Adjustment Procedure 2 1 TDS 200 Series Digital Oscilloscope Service Manual 1 1 2 1 2 2 2 3 2 5 2 6 2 7 2 7 2 7 2 8 4 1 4 2 4 3 Table of Contents Maintenance Options Electrical Parts List Diagrams Replaceable Parts 6 1 Preparation TEES MEER RE PB EE 6 1 Preventing ESD rb THEE FERE Sapa 6 1 Inspection and 1 t yankee ERE RE EE 6 2 Removal and Installation Procedures
6. AGENS Service Safety Summary Only qualified personnel should perform service procedures Read this Service Safety Summary and the General Safety Summary before performing any service procedures Do Not Service Alone Do not perform internal service or adjustments of this product unless another person capable of rendering first aid and resuscitation is present Disconnect Power To avoid electric shock disconnect the main power by means of the power cord or if provided the power switch Use Care When Servicing With Power On Dangerous voltages or currents may exist in this product Disconnect power remove battery if applicable and disconnect test leads before removing protective panels soldering or replacing components To avoid electric shock do not touch exposed connections TDS 200 Series Digital Oscilloscope Service Manual vii Service Safety Summary viii TDS 200 Series Digital Oscilloscope Service Manual Preface Related Manuals TDS 200 Series Digital Oscilloscope Service Manual The service manual for the TDS 200 Series Digital Real Time Oscilloscope provides information to troubleshoot and repair the instrument to the module level Some TDS models have two input channels and an external trigger while other models have four input channels Most illustrations in this manual show a two channel model Some parts for the four channel model are slightly different because of the additional channels
7. TDS 200 Series Digital Oscilloscope Service Manual 6 43 Maintenance 4 Select Mfg Tests to start the front panel controls test Menu Settings Comments Mfg Displays a front panel simulation used to check that all front Tests panel controls are operational Loop Displays a menu of choices of how to run the diagnostics Diag used during manufacturing of the instrument Clear Remove all Error Log entries from memory and set the power Error Cycle count to zero Log 5 Select Test FP to start the front panel controls test Menu Settings Comments Test Displays a front panel simulation used to check the operation FP of all front panel controls All buttons must be pressed and all knobs must be turned in both directions before you can exit this test Test Checks the display screen pixels with different patterns from Screen each press ofthe button Incr Allows you to check the display contrast operation across Contrast 100 of the hardware range Decr Allows you to check the display contrast operation across Contrast 100 of the hardware range Stop Exits the front panel test Test FP after all buttons and knobs Test have been tested successfully and exits the screen test Test Screen 6 Press each button and rotate each knob to verify the operation of all controls If all buttons and knobs have pass the test pressing the lower menu button EXIT exits the test 7 If any button fails to operate inspect and or clean t
8. go 0000000 50 feedthrough BNC cable terminator Set the time mark generator period to 10 ms Set the instrument VOLTS DIV to 500 mV div Set the instrument Main SEC DIV to 1 ms div Press SET LEVEL TO 50 Use the vertical POSITION control to center the test signal on screen n P RO Change the instrument setup using the following steps Press menu button Select menu item Select setting HORIZONTAL Window TDS 200 Series Digital Oscilloscope Service Manual Performance Verification 9 Set the instrument Window SEC DIV to 500 ps div NOTE Setting the Window SEC DIV to a setting slower than the Main SEC DIV setting resets the main timebase If this happens reset the Main SEC DIV and then the Window SEC DIV settings 10 Use the horizontal POSITION control to set the window position to 10 00 ms 11 Set the instrument Window SEC DIV to 500 ns div 12 Check that the rising edge of the marker crosses the center horizontal graticule line within 2 divisions of center graticule NOTE One division of displacement from graticule center corresponds to a 50 ppm time base error 13 Disconnect the test setup Check Edge Trigger This test checks the edge trigger sensitivity for all input channels Sensitivity 1 Set up the instrument using the following steps Press menu button Select menu item Select setting SAVE Recall RECALL Factory CH1 Prob
9. Additional documentation for the instrument is contained in the related manuals listed below Language English French German Italian Spanish Portuguese Japanese Korean Simplified Chinese Traditional Chinese Russian User manual part number 071 0398 XX 071 0400 XX 071 0402 XX 071 0401 XX 071 0399 071 0403 XX 071 0405 XX 071 0408 XX 071 0406 XX 071 0407 XX 071 0404 XX Extension module instructions part Programmer manual number part number 071 0409 XX 071 0493 XX 071 0483 XX 071 0485 XX 071 0484 XX 071 0482 XX 071 0486 XX 071 0488 XX 071 0491 XX 071 0489 XX 071 0490 XX 071 0487 manuals contain language overlay for the front panel controls Preface Contacting Tektronix Phone Address Web site Sales support Service support Technical support 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 1 503 627 2400 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 Product End of Life Handling Co
10. Horizontal Delta Time Measurement Accuracy Full Bandwidth Conditions Accuracy Single shot Sample mode 1 sample interval 100 ppm x reading 0 6 ns gt 16 averages 1 sample interval 100 ppm x reading 0 4 ns Sample interval s div 250 Position Range 5 ns div to 10 ns div 25 ns div to 100 us div 250 us div to 5 s div Trigger Trigger Sensitivity Edge Trigger Type Trigger Sensitivity Edge Trigger Type typical Trigger Level Range 4 div x s div to 20 ms 4 div x s div to 50 ms 4 div x s div to 50 s Trigger Level Accuracy typical Coupling Sensitivity DC CH 1 CH 2 1 div from DC to 10 MHz CH3 amp CH 4 1 5 div from 10 MHz to Full TDS 210 and TDS 220 EXT 100 mV from DC to 10 MHz 150 mV from 10 MHz to Full EXT 5 500 mV from DC to 10 MHz 750 mV from 10 MHz to Full Coupling Sensitivity AC Same as DC at 50 MHz and above NOISE Reduces DC coupled trigger sensitivity by 2 times for gt 10 mV div to 5 V div HF REJ Same as DC coupled limit from DC to 7 kHz attenuates signals above 80 kHz LF REJ Same as the DC coupled limits for frequencies above 300 kHz attenuates signals below 300 kHz Source Range Internal 8 divisions from center of screen TDS 210 and TDS 220 EXT 1 6 V EXT 5 8 Accuracies are for signals having rise and fall times 220 ns Source Accuracy Internal 0 2 div x volts div within 4 divisions from
11. 6 5 Aroubleshooting i on ert bx FRE Palade Petia 6 38 Repackaging Instructions 1 6 48 ADI Hes 7 1 Electrical Parts 48 8 1 Diagrams eerie etr ES RE RENE M RR NM 9 1 Replaceable Parts 2 2 2 2 2 4 6 66 10 1 Parts Ordering Information 10 1 Using the Replaceable Parts 186 10 2 TDS 200 Series Digital Oscilloscope Service Manual Table of Contents List of Figures Figure 2 1 Figure 2 2 Figure 3 1 Figure 3 2 Figure 5 1 Figure 5 2 Figure 6 1 Figure 6 2 Figure 6 3 Figure 6 4 Figure 6 5 Figure 6 6 Figure 6 7 Figure 6 8 Figure 6 9 Figure 6 10 Figure 6 11 Figure 6 12 Figure 6 13 Figure 6 14 Figure 6 15 Figure 6 16 Figure 6 17 Figure 6 18 Figure 6 19 Figure 6 20 Figure 6 21 Figure 6 22 Figure 6 23 Figure 6 24 Figure 6 25 Figure 6 26 Figure 10 1 Routing the power cord and security cable 2 3 Installing an extension module 2 4 Module level block diagram two channel 3 3 Module level block diagram four channel 3 4 Service menu enable button 5 2 Adjustment 5 3 Removing the rear feet
12. 2 Insert the top of the front panel module under the tabs at the top of the chassis and press the board down until the securing tabs at the bottom of the chassis lock into place Refer to Figure 6 21 3 Reconnect the front panel ribbon cable at J603 or J103 on the main board Refer to Figure 6 17 4 Place the entire internal assembly into the front case as shown in Fig ure 6 15 5 Use the installation procedures for each module removed to reassemble the instrument Internal chassis AAS Se B lt N Ribbon cable to 202 on main board Front panel module Figure 6 22 Installing the front panel module 6 32 TDS 200 Series Digital Oscilloscope Service Manual Maintenance Keypad You will need a torque limiting Torx T 15 screwdriver and a flat blade screwdriver for this procedure Removal First remove the handle power button and rear case using the procedures on pages 6 12 6 13 and 6 14 Then use the following procedure to remove the switch keypad 1 Remove the entire internal assembly from the front case using the procedure on page 6 24 2 Liftthe keypad out of the front case Refer to Figure 6 23 CAUTION Keep the electrical contacts on the back of the keypad clean Skin oils and dust will inhibit good electrical contact Conductive foam pad Front case Figure 6 23 Removing and installing the keypa
13. TDS 220 348 1526 00 B010100 B019999 SHLD TUBE COPRESSION KNITTED WIRE SHIELDING 0 03 8502 0310 40 0 312 00 0 292 0 234 GROOVE TDS 224 348 1616 00 090100 1 SHLD GSKT ELEC FOLD OVER ADHESIVE 0 25L X TK2647 0097 0521 19 C020100 0 51W BECU BRIGHT NI PLTITX1 TX3 TDS 210 348 1616 00 B060100 SHLD GSKT ELEC FOLD OVER ADHESIVE 0 25L X TK2647 0097 0521 19 C020100 0 51W BECU BRIGHT NIPLT TX1 TX3 TDS 220 348 1616 00 B020100 SHLD GSKT ELEC FOLD OVER ADHESIVE 0 25L X TK2647 0097 0521 19 0 51W BECU BRIGHT NIPLT TX1 TX3 TDS 224 10 13 679 3743 00 1 CKT BD SUBASSY OEM FRONT PANEL 3 DETENTED amp 4 32997 3777S TEK 001 NON DETENTED ENCODERS TDS210 TDS220 671 4680 00 1 CIRCUIT BD ASSY FRONT PANEL ENCODER TDS224 80009 671 4680 00 10 1 14 260 2654 00 1 SWITCH ELASTOMER KEY PAD TDS210 TDS220 TK2376 260 2654 00 260 2722 00 1 SWITCH PUSHBUTTON SET ELASTOMERIC TDS224 TK2376 260 2722 00 10 1 15 119 4991 10 B010100 B011848 1 LCD SHIELD ASSY 119 4991 00 amp 337 4069 00 80009 119 4991 10 119 4991 11 B011849 1 LCD SHIELD ASSY 119 4991 00 amp 337 4069 00 80009 119 4991 11 119 4991 10 B010100 012275 1 LCD SHIELD ASSY 119 4991 00 amp 337 4069 00 80009 119 4991 10 119 4991 11 B012276 1 LCD SHIELD ASSY 119 4991 00 337 4069 00 119 5585 00 80009 119 4991 11 10 16 348 1534 00 1 GASKET EMI 0 375 X 0 50 X 1 0 INCH LONG OPEN CELL 77824 6819700100 URETHANE FOAM W ADHESIVE STRIP TDS 210 and TDS 220 only 10 17 348 1525 00 2 FOOT SANTOPRENE BL
14. To clear the error log enable the service menus as described page 5 2 gt TDS 200 Series Digital Oscilloscope Service Manual Select Service Diag from the menu selection Press the UTILITY button and select Service from the menu selection Select Clear Error Log to clear the error log of past failures 6 47 Maintenance Repackaging Instructions Packaging Storage 6 48 This section contains the information needed to repackage the oscilloscope for shipment or storage Use a corrugated cardboard shipping carton having a test strength of at least 275 pounds 125 kg and with an inside dimension at least six inches 15 25 cm greater than the instrument dimensions If the instrument is being shipped to a Tektronix Service Center enclose the following information m The owner s address m Name and phone number of a contact person Type and serial number of the instrument m Reason for returning A complete description of the service required Seal the shipping carton with an industrial stapler or strapping tape Mark the address of the Tektronix Service Center and also your own return address on the shipping carton in two prominent locations The oscilloscope should be stored in a clean dry environment The following environmental characteristics apply for both shipping and storage instrument not operating m Temperature range 20 C to 460 m Altitude To 15 000 m See the cha
15. Single acquisition all channels simultaneously Average N acquisitions all channels simultaneously N is selectable from 4 16 64 and 128 Inputs Input Coupling DC AC or GND Input Impedance 1 MQ 2 in parallel with 20 pF 3 pF DC Coupled all channela Input Impedance TDS 210 B099188 to B119999 amp C021679 to C029999 All other TDS 210 TDS 220 and TDS 224 DC Coupled TDS 220 B065810 to B079999 amp C021127 to C029999 EXT TRIG only 1 2 5 in parallel with 20 pF 5 pF 1 MQ 5 in parallel with 20 pF 5 pF P2100 Probe Attenuation 1X 10X Probe Attenuation Factors 1X 10X 100X 1000X Maximum Voltage Between Overvoltage Category Maximum Voltage E Common at CAT and CAT II 300 Vams 420 V peak duty factor 5096 pulse width 100 CAT Ill 150 Vams For steady state sinusoidal waveforms derate at 20 dB decade above 100 kHz to 13 Vp at 3 MHz and above Also refer to Overvoltage Category description on page 1 7 Bandwidth is not valid for the P2100 probe when the switch is set to 1X TDS 200 Series Digital Oscilloscope Service Manual 1 1 Specifications Table 1 1 Specifications cont Inputs Maximum Voltage Between Probe Tip and ground using P2100 connected to input BNC Overvoltage Category Maximum Voltage CAT and CAT II 300 500 V peak duty factor 3596 pulse width 100 msec CAT III 100 Vams Derate at 20 dB decade above 900 kHz to
16. and manages the extension module interface Saved setups waveforms and calibration constants are stored in nonvolatile memory The processor system shares DRAM with the display system BNC connectors are mounted on the main board for the CH 1 CH 2 and trigger or CH 1 CH 2 CH 3 and CH 4 inputs The signal inputs are compatible with the P2100 probes supplied The PROBE COMP and ground terminals are provided for probe adjustment TDS 200 Series Digital Oscilloscope Service Manual 3 1 Theory of Operation Power Supply Display Module Front Panel Extension Modules The power supply module generates low voltage DC a line trigger signal for the main board and high voltage AC to power the LCD backlight The power supply operates over a wide power line voltage and frequency range The display module consists of a liquid crystal display LCD a display driver and a florescent backlight The front panel board holds the encoders and push button contacts that the operator uses to control the instrument An elastomer mat holds the conductive pads for the push buttons Circuits on the front panel convert the matrix into serial data which is read by the display ASIC on the main Board Each extension module also contains a GPIB RS 232 and Centronics parallel printer interface A ROM on the extension module contains processor instruc tions to support the communications interfaces Extension modules interface with the processor
17. and variations AS NZS 2064 Australian emissions standard for Industrial Scientific and Medical Equipment TDS 210 TDS 220 Low Voltage Directive 73 23 EEC as amended by 93 68 EED TDS 224 P2100 EN61010 1 A2 1995 Safety requirements for electrical equipment for measurement control and laboratory use P2100 EN 61010 2 031 1994 Particular requirements for hand held probe assemblies for electrical measurement and test nstrument tested with shielded cables Meets Performance Criterion A with allowed degradation of up to 5 major divisions of trace noise increase from 80 MHz to 200 MHz and up to 2 divisions of trace noise increase over the range of 200 MHz to 1000 MHz under a 3 V m RF field Ambient RF fields may induce triggering when trigger threshold is offset less than 2 5 major divisions from ground reference 1 6 TDS 200 Series Digital Oscilloscope Service Manual Specifications Table 1 2 General specifications cont Certifications and compliances Certifications TDS 210 TDS 220 TDS 224 P2100 CAN CSA C22 2 No 1010 1 92 UL3111 1 First Edition 61010 1 2 61010 2 031 CSA Certification includes the products and power cords appropriate for use in the North America power network All other power cords supplied are approved for the country of use CSA Certified Power Cords Pollution Degree 2 Do not operate in environments where conductive pollutants may be present O
18. approximately 5 V in amplitude at a 1 KHz frequency Use the oscilloscope and set the Attenuation switch to 10X on the P2100 probe to probe this output Signal at PROBE COMP 1 kHz signal no display Possible problem Go to Display Troubleshooting P age 6 42 No signal to Power Supply Troubleshooting P age 6 40 gt 1 2 kHz signal Go to Power Supply Troubleshooting P age 6 40 Follow these steps to troubleshoot the power supply Remove the rear case using the procedure Rear Case on page 6 14 2 Use the test oscilloscope to measure the voltages from the power supply module at J131 on the main board module The table below lists the voltages you should expect to see Voltage at J131 Description Pin 1 marked with 44 4 85 VDC to 45 15 VDC Pin2 4 85 VDC to 5 15 VDC Pin 3 GND Pin 4 4 35 VDC to 5 15 VDC slightly higher if disconnected Pin5 23 VDC to 25 VDC Pin GND Pin 7 1 4 Vok pk to 5 Vpk pk 47 to 63 Hz square wave 3 If all of the voltages are present the main board is probably defective Replace it 4 Ifallor some of the voltages are missing continue with step 5 5 Turn off the instrument and disconnect the cable at connector J131 on the main board module 6 Turnon the instrument and check the voltages at the loose end of the cable disconnected from J131 checking for the same voltages as in step 2 TDS 200 Series Digital Oscilloscope Service Manual Maintenance 7 If
19. assembly from the front case using the procedure on page 6 24 2 Remove the switch keypad using the procedure on page 6 33 3 Remove TDS 210 and TDS 220 only the conductive foam pad from the front case see Figure 6 15 on page 6 24 Installation Use this procedure to install the front case Refer to Figure 6 15 on page 6 24 1 Place TDS 210 and TDS 220 only the conductive foam pad into the front case 2 Place the switch keypad into the front case 3 Place the entire internal assembly into the front case 4 Use the installation procedures for each module removed to reassemble the instrument 5 Ifinstalling a new front case place a new front panel label onto the case as described on page 6 10 TDS 200 Series Digital Oscilloscope Service Manual 6 37 Maintenance Troubleshooting A Adjustment After Repair Required Tools and Equipment 6 38 This section contains information and procedures to help you isolate a defective module in the oscilloscope WARNING Before doing this or any other procedure in this manual read the General Safety Summary and Service Safety Summary found at the beginning of this manual Also to prevent possible injury to service personnel or damage to electrical components read Preventing ESD on page 6 1 If you replace the main board or power supply you must adjust the instrument after repair Refer to the chapter Adjustment Procedures You may need the the followi
20. blade screwdriver to pry up on the foot Use care not to mar the surface of the rear case Rear foot 2 Figure 6 1 Removing the rear feet 6 8 TDS 200 Series Digital Oscilloscope Service Manual Maintenance Installation Use this procedure to install the feet 1 Place the rear case face down on a soft surface such as an anti static mat 2 Align the slots of the rear foot with the guides in the rear case as shown in Figure 6 2 and press the foot in Rear foot Q Figure 6 2 Installing the rear feet TDS 200 Series Digital Oscilloscope Service Manual 6 9 Maintenance Front Case Label You will need a sharp knife and needle nose pliers to remove the front case label needs to be replaced i CAUTION Removal of a front case label will destroy it Do not remove it unless it Removal Use the sharp knife to pry up a corner of the label and use the pliers to peel the label off Installation Use this procedure to install a new front panel label in either a new or the existing front case 1 Peel the paper off the back side of the new label 2 Handling the label by its edges only align it with the recess in the front case as shown in Figure 6 3 3 When properly aligned press the new label into place Figure 6 3 Installing a front case label 6 10 TDS 200 Series Digital Oscilloscope Service Manual Maintenance Rear Case Label You will ne
21. center screen TDS 210 and TDS 220 EXT 6 of setting 40 mV EXT 5 6 of setting 200 mV Bandwidth is not valid for the P2100 probe when the switch is set to 1X 1 4 TDS 200 Series Digital Oscilloscope Service Manual Specifications Table 1 1 Specifications cont Trigger SET LEVEL TO 50 typical Default Settings Video Trigger Sensitivity Video Trigger Type typical Operates with input signals 250 Hz Trigger mode is Auto and Coupling is AC Composite video signal Source Range Internal Pk pk amplitude of 2 divisions TDS 210 and TDS 220 EXT 400 mV EXT 5 2V Supports NTSC PAL and SECAM broadcast systems for any field or any line Signal Formats and Field Rates Video Trigger Type Holdoff Range 500 ns to 10s Measurements Cursors Voltage difference between cursors AV Time difference between cursors AT Reciprocal of AT in Hertz 1 AT Automated Measurements Cycle RMS Mean Pk Pk Period Frequency Table 1 2 General specifications Display Display Type 5 9 in 152 mm diagonal liquid crystal Display Resolution 320 horizontal by 240 vertical pixels Display Contrast Adjustable temperature compensated Backlight Intensity typical 60 cd m Probe compensator output Output Voltage typical 5 V into 21 MQ load Frequency typical 1 kHz Power Source Source Voltage 100 120 VACgus 10 from 45 Hz through 440 Hz CAT II 120 250
22. disconnect the display module cable at J202 or J102 on the main board Carefully pull the cable straight up from the connector to avoid damage 6 Turn the instrument on 7 Probe the pins of J202 or J102 checking for the same signals as in step 3 8 Ifany of the signals are missing the main board module is probably defective Replace it Front Panel Follow these steps to troubleshoot a nonfunctional front panel Troubleshooting Buttons Use the manufacturing tests to check that each of the front panel controls operate properly 1 execute the internal diagnostic tests remove all input signals from the instrument and enable the service menus as described on page 5 2 2 Press the UTILITY button and select Service from the menu selection Menu Comments System Displays the system menus Status Do Self Cal Performs a self calibration Error Log Displays a list of any errors logged This listis useful when contacting a Tektronix Service Center for help troubleshooting problems Displays the service menus for adjustment procedures and diagnostics Service 3 Select Service Diag from the menu selection Menu Comments FCAL Initiates the factory calibration routine to load new calibration INIT constants FCAL Steps through the calibration routine steps STEP FCAL Aborts the factory calibration routine without affecting any ABORT calibration constants Service Displays the service diagnostics menus Diag
23. display module From the bottom of the internal chassis slightly bend the two securing tabs and tilt the board down until it clears the tabs Refer to Figure 6 17 Pull the board out of the front slots of the internal chassis near the BNC connectors TDS 200 Series Digital Oscilloscope Service Manual Maintenance Power supply ribbon cable Internal chassis Display module ribbon cable Front panel cable Main board Figure 6 17 Main board removal Installation Use this procedure to install the main board module Refer to Figure 6 18 1 Working from the bottom of the internal chassis place the front of the main board module into the slots on the internal chassis near the BNC connec tors 2 Keeping the module in place press the board into place so that the securing tabs lock onto the bottom of the board Note that there are two board guides on the chassis that must match the cutouts on the main board 3 Reconnect the following wires on the main board Refer to Figure 6 17 a The line cord ground wire at J602 or J101 and the seven conductor ribbon cable at J131 from the power supply module b The ribbon cable at J603 or J103 from the front panel module c The ribbon cable at J202 or J102 from the display module 4 Place the entire internal assembly housing all of the boards and the display screen into the front case as shown in Figure 6 16 TDS 200 Series Digital Oscilloscope Se
24. down slide the handle along the groves in the case until the handle snaps into place as shown in Figure 6 6 Figure 6 6 Installing the handle Power Button Remove the power button by firmly grasping the button with pliers if necessary and pull it straight out of the cabinet Reinstall the button by pressing it onto the power button shaft until it snaps into place NOTE Wrap the plier jaws with tape such as electrical to avoid marring the button surface TDS 200 Series Digital Oscilloscope Service Manual 6 13 Maintenance 6 14 Rear Case ZN You will need a torque limiting Torx T 15 screwdriver and a flat blade screwdriver for this procedure Removal First remove the handle and power button using the procedures on pages 6 12 and 6 13 then use this procedure to remove the rear case 1 If installed remove the extension module from the rear of the instrument CAUTION Do not remove the rear case with an extension module installed 2 Place the instrument face down on a soft surface such as an anti static mat 3 Remove the two screws located in the handle recesses Refer to Figure 6 7 4 Slipthe flat blade screwdriver between the rear case and front case at the bottom of the instrument to disengage the tabs and lift the rear case off Installation Use this procedure to install the rear case 1 Place the instrument face down on a soft surface such as an a
25. of the signals are missing continue with step 12 Turn the instrument off and disconnect the front panel module cable from the main board at connector J603 or J103 Turn on the instrument and check connector J603 or J103 for the same signals as in step 9 If some or all of the signals are missing the main board is probably defective Replace it TDS 200 Series Digital Oscilloscope Service Manual 6 45 Maintenance Diagnostics Other Troubleshooting 6 46 The instrument runs an extensive self diagnostics at every power on Running the diagnostics from the service menu will provide no additional information than the power up screen and therefore is not needed The menu selections are only used during manufacturing of the instrument Use these techniques to troubleshoot other parts of the instrument Input Connections Follow these steps to troubleshoot the input connections only if the following condition is true the instrument appears to function normally in every way except you have determined that an input signal is not getting into the instrument as expected 1 Remove the rear cover using the procedure Rear Case on page 6 14 2 Check that the coaxial connections to the back side of the BNC connectors are intact Use the DMM to measure continuity from the BNC connector to the end of the coaxial cable where it attaches to the main board 3 If no problem is found and the trouble persists the main board is probably de
26. replaceable standard accessories for the oscilloscope and the instrument options that included them in the original shipment These accessories are not shown in Figure 10 1 Table 10 4 Replaceable standard accessories Description of accessory Passive 1X 10X probes Replacement user manual English French German Italian Spanish Portuguese Japanese Korean Simplified Chinese Traditional Chinese Russian Replacement power cords North American 120 V 60 Hz North American 240 V 60 Hz Universal European 230 V 50 Hz United Kingdom 230 V 50 Hz S witzerland 230 V 50 Hz Australian 240 V 50 Hz China 220 V 50 Hz Tektronix part number or nomenclature P2100 071 0398 XX 071 0400 XX 071 0402 XX 071 0401 XX 071 0399 071 0403 071 0405 071 0408 071 0406 071 0407 XX 071 0404 XX 161 0230 01 161 0104 08 161 0104 06 161 0104 07 161 0167 00 161 0104 05 161 0304 00 These manuals contain a language overlay for the front panel controls Table 10 5 Replaceable optional accessories Description of accessory Tektronix part number or nomenclature Soft case AC220 Transit case HCTDS32 Measurement Extension Module TDS2MM Communications Extension Module TDS2CM Rackmount Kit RM200 Requires the soft case which fits inside TDS 200 Series Digital Oscilloscope Service Manual 10 9 Replaceable Parts 10 10 Table 10 5 Replaceable optional accessori
27. 0VAC 30KHZ 5MA OUTPUT TDS 210 119 5417 02 B049399 B089999 1 POWER SUPPLY CUSTOM AC DC 11W 85 275VAC 45 66HZ 14310 51 422 0000 02 C010879 C019999 INPUT 5 0V 1 0 5 0V 0 3A 23V 10MA 450VAC 30KHZ 5MA OUTPUT TDS 210 119 5417 00 B010100 B034184 1 POWER SUPPLY 11W 5 0V 1 0A 5 0V 0 3A 23V 14310 SW422KA0000F02 C010100 C010519 10MA 450VAC 30KHZ 5MA 85 275VAC 45 66HZ INPUT TDS220 119 5417 01 B034185 B041057 1 POWER SUPPLY CUSTOM AC DC 11W 85 275VAC 45 66HZ 14310 51 422 0000 02 C010520 C011173 INPUT 5 0V 1 0A 5 0V 0 3A 23V 10MA 450VAC 30KHZ 5MA OUTPUT TDS 220 119 5417 02 B041058 B059999 1 POWER SUPPLY CUSTOM AC DC 11W 85 275VAC 45 66HZ 14310 51 422 0000 02 011174 019999 INPUT 5 0V 1 0A 5 0V 0 3A 23V 10 450VAC 30KHZ 5MA OUTPUT TDS 220 119 6025 00 B090100 1 POWER SUPPLY CUSTOM 12W 5VDC 1 25A 5VDC 0 7A 14310 SW422KA0000F 03 C020100 24VDC 15MA 450 VRMS 6MA 60KHZ 85 275VAC TDS210 119 6025 00 B060100 1 POWER SUPPLY CUSTOM 12W 5VDC 1 25A 5VDC 0 7A 14310 SW422KA0000F03 C020100 24VDC 15MA 450 VRMS 6MA 60KHZ 85 275VAC TDS 220 119 6025 00 1 POWER SUPPLY CUSTOM 12W 5VDC 1 25A 5VDC 0 7A 14310 SW422KA0000F03 24VDC 15MA 450 VRMS 6MA 60KHZ 85 275VAC TDS 224 10 1 10 441 2082 00 1 CHASSIS ASSY CKT BD amp LCD SUPPORT MACROBLEND TK1163 441 2082 00 DP 4 1368 10 4 TDS 200 Series Digital Oscilloscope Service Manual Replaceable Parts Table 10 3 Replaceable parts list cont Fig amp
28. 13 at 27 MHz and above Also refer to Overvoltage Category description on page 1 7 Time delay between channels typical Channel to Channel Common Mode Rejection typical Channel to C hannel Cross talk Vertical Digitizers VOLTS DIV Range Position Range Analog Bandwidth in Sample and Average modes at BNC or with P2100 probe 150 ps TDS 210 TDS 220 and TDS 224 100 1 at 60 Hz 100 1 at 60 Hz 20 1 at 30 MHz 20 1 at 50 MHz Measured on MATH Chl Ch2 waveform with test signal applied between signal common of both channels and with the same VOLTS DIV and coupling settings on each channel Also measured on MATH Ch3 Ch4 waveform for the TDS 224 TDS 210 TDS 220 and TDS 224 gt 100 1 at 30 MHz gt 100 1 at50 MHz Measured on one channel with 8 division test signal applied between signal and common of the other channel the same VOLTS DIV and coupling settings on each channel and 50 O terminators on each channel 8 bit resolution except when set to 2 mV div each channel sampled simultaneously 2 mV div to 5 V div at input BNC Full bandwidth at gt 5 mV div to 5 V div 20 MHz at 2 mV dif to 5 mV div except in Peak Detect mode full bandwidth at gt 10 mV div to 5 V div 20 MHz at 2 mV div to 10 mV div 2 mV div to 200 mV div 2 V gt 200 mV div to 5 V div 50 V TDS 210 TDS 220 and TDS 224 60 MHz when vertical scale set to gt 5 mV div 100 MHz when vertical scale set to gt 5 m
29. 200 Series Digital Real Time Oscilloscope to the module level It describes the basic operation of each functional circuit block shown in figures 3 1 and 3 2 The Main board contains a two or four channel acquisition system trigger system acquisition display controller and system processor Interfaces are provided for two signal inputs external trigger input probe compensation front panel LCD display extension module and power supply Acquisition and display functions are implemented in two application specific integrated circuits ASICs Signals from the CH 1 CH 2 and EXT TRIG or CH 1 CH 2 CH 3 and CH 4 input connectors pass through attenuators to the acquisition ASIC The acquisi tion ASIC contains amplifiers and samplers for each input channel A D converter and trigger logic The digitized waveform samples are transferred to the display ASIC Low voltage regulators supply isolated power to the acquisi tion ASIC The display system consists of the display ASIC DRAM memory and system oscillator Digitized acquisition samples are processed by the display ASIC and stored into DRAM The Display ASIC formats the waveform data and generates drive signals for the LCD display Front panel scanning is also performed by the display ASIC The processor system consists of the microprocessor and memory The processor system interprets the front panel controls programs acquisition and display parameters computes waveform measurements
30. 21 DC Voltage 1 0 16 V 22 DC Voltage 1 02V 23 DC Voltage 1 0 32 V 24 DC Voltage 1 04V 25 DC Voltage 1 0 8 V 26 DC Voltage 1 12V 2 DC Voltage 1 16V 28 DC Voltage 1 20V 29 DC Voltage 1 20 0 V 30 30 3l 3l EXT TRIG 32 32 33 33 34 34 TDS 200 Series Digital Oscilloscope Service Manual Adjustment Procedures Table 5 2 TDS 210 and TDS 220 Adjustment steps cont Input CH1 Step Step Firmware Firmware Below V 2 00 V2 00andUp Equipment setup Signal source setting 35 inewave Generator 50 Ohm 5 kHz 1 Vp p 36 inewave Generator 50 Ohm 1 MHZ 1 Vp 37 inewave Generator 50 Ohm 50 kHz 1 Vp p 38 inewave Generator 50 Ohm 20 MHZ 1 Vp p 39 inewave Generator 50 Ohm TDS 210 60 MHz 1 Vp p TDS 220 100 MHz 1 Vp p 40 inewave Generator 50 Ohm 5 kHz 2 5 Vo 41 inewave Generator 50 Ohm 1 MHz 25 42 inewave Generator 50 Ohm 50 kHz 2 5 Vp p 43 inewave Generator 50 Ohm 20 MHz 2 5 44 inewave Generator 50 Ohm TDS 210 60 MHz 2 5 Vp TDS 220 100 MHz 2 5 Vp p 45 inewave Generator 50 Ohm TDS 210 60 MHz 2 5 Vp TDS 220 100 MHz 2 5 Vp p None i Geren OR 47 48 49 50 Sinewave Generator 50 Ohm 20 MHz 1 V5 50 51 inewave Generator 50 Ohm 51 52 Sinewave Generator 50 Ohm 5 kHz 25 Vp p 52 53 Sinewave Generator 50 Ohm 1 MHz 2 5 Vs 53 54 Sinewave Generator 50 Ohm 50 kHz 2 5 Vp p 54 55 Sinewave Gene
31. ACK 64 DEROMETER TEXTURED TK1163 348 1525 00 10 118 366 0771 00 3 KNOB CAP PC ABS BAYBLEND FR110 SILVER GRAY 0 650 1163 366 0771 00 DIA X 0 520 H 10 19 366 0772 00 4 KNOB CAP PC ABS BAYBLEND FR110 SIVER GRAY 0 425 TK1163 366 0772 00 DIA X 0 520 H 10 120 334 8682 00 1 MARKER IDENT FRONT BEZEL LABEL MARKED 0 05 334 8682 00 TDS220 5 470 0 345 0 010 POLY FILM 334 9261 00 1 MARKER IDENT FRONT BEZEL LABEL MARKED 0 05 334 9261 00 TDS210 5 470 X 0 345 0 010 POLY FILM 334 9884 00 1 MARKER IDENT FRONT BEZEL MKD TDS224 0 010 0 05 334 9884 00 POLY W ADHESIVE 10 1 21 202 0346 00 B010100 B089999 1 CASE FRONT ABS BAYBLEND FR110 TDS210 TK1163 202 0346 00 C010100 C019999 202 0346 01 8090100 1 CASE FRONT ABS BAYBLEND FR110 TDS210 TK1163 202 0346 01 C020100 202 0346 00 B010100 B059999 1 CASE FRONT ABS BAYBLEND FR110 TDS220 TK1163 202 0346 00 C010100 C019999 202 0346 01 B060100 1 CASE FRONT ABS BAYBLEND FR110 TDS220 TK1163 202 0346 01 C020100 10 6 TDS 200 Series Digital Oscilloscope Service Manual Replaceable Parts Table 10 3 Replaceable parts list cont Fig amp index Tektronix part Serial no Serial no number number effective discont d 333 4306 00 10 1 22 337 4069 00 10 1 23 367 0476 00 10 1 24 131 6173 00 B010100 B024106 131 6173 01 B024107 131 6173 00 B010100 B022380 131 6173 01 B022381 131 6173 01 NOT 119 5585 00 B010100 B012275 SHOWN Qty amp descript
32. CULAR 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 Table of Contents Specifications Operating Information Theory of Operation General Safety Summary Service Safety Prelate ERES Related Manuals 22255 REPETI REN e e EV SUED ER V SE RES Contacting Tektronix Product End of Life Handling Specifications 22 5 Operating Information General Features ips br PR RE RA Tristallatiofi Extension Modules seort 2o ree CO Eb vd es Functional Check 22 50 Probe Compensation 2 2 Self Calibration 234 e e gcse v ER oh eer ener a bate gat hee tal rnt Probe Safety iiss cs eec ehh ica eb bec Savi ab DOC REIHE Probe Attenuation Setting
33. DS 224 for the remainder of the routine applying the proper signal for each step NOTE During some steps the instrument may appear to be idle for several minutes while it is processing information internally Please have patience If any step in the procedure fails the procedure terminates Failure will result if an incorrect signal source is connected If this happens you must start the procedure over from the beginning If the procedure completes successfully a Pass message is displayed and the new adjustment takes effect 8 9 5 4 Compensate the signal path by performing the self calibration routine Disconnect any probes or cables from the channel input connectors Then press the UTILITY button and select Do Self Cal to confirm that you are ready to proceed Disable the Service menu option TDS 200 Series Digital Oscilloscope Service Manual Adjustment Procedures Table 5 2 TDS 210 and TDS 220 Adjustment steps Firmware Firmware Below V 2 00 V2 00andUp Equipment setup Signal source setting Input 1 1 CH1 amp CH2 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 a 0 2V 10 DC Voltage 1 0 16V 11 DC Voltage 1 0 08 V 12 DC Voltage 1 0 04 V 13 13 DC Voltage 1 0 03V 14 14 1 0 02 V 15 DC Voltage 1 0 015 V 16 DC Voltage 1 0 015 V 17 DC Voltage 1 0 02 V 18 DC Voltage 1 0 03 V 19 DC Voltage 1 0 04 V 20 DC Voltage 1 0 08 V
34. Input capacitance Maximum input voltage Horizontal Measurement Type Accuracy Average of 216 waveforms with vertical position at zero Average of 216 waveforms with vertical position not at zero Delta volts between any two averages of 216 waveforms acquired under same setup and ambient conditions 10X position DC to 100 MHz 10 1 18 pf 35 pf 10 2 14 5 pf 17 5 pf 300 CAT or 300 V DC CAT 300 CAT Il or 300 V DC CAT II 100 CAT Ill or 100 V DC CAT Ill 4 x reading 0 1 div 1 mV and either 2 mV div or 5 mV div is selected 3 x reading 0 1 div 1 mV and 10 mV div or greater is selected 3 x reading vertical position 1 of vertical position 0 2 div Add 2 mV for settings from 2 mV div to 200 mV div Add 50 mV for settings from gt 200 mV div to 5 Vidiv 3 of reading 0 05 div 1X position DC to 7 MHz 11 All oscilloscopes with 1 M O input 1 0 2 80 pf 110 pf 150 CAT or 150 V DC CAT I 150 CAT Il or 150 V DC CAT II 100 Va us CAT Ill or 100 V DC CAT Ill Sample Rate Range 50 S s to 1 GS s Waveform Interpolation sin x x Record Length 2500 samples for each channel SEC DIV Range 5 ns div to 5 s div in a 1 2 5 5 sequence Sample Rate and Delay 100 ppm over any 21 ms time interval Time Accuracy TDS 200 Series Digital Oscilloscope Service Manual Specifications Table 1 1 Specifications cont
35. LATE COMPANY STAUFFER SUPPLY CO NORTH STAR NAMEPLATE INC INSTRUMENT SPECIALTIES CO INC AULT INC BOURNS INC SCHLEGEL CORP TEKTRONIX INC LIGHTWORKS EDITING SYSTEMS LTD POLYCAST INC NORTHWEST FOURSLIDE INC CONDUCTIVE RUBBER TECH SHARP CORPORATION INSTRUMENT SPECIALTIES CO INC IMC PLASTICS INC Address 3191 CASITAS AVENUE 810 SE SHERMAN 5750 NE MOORE COURT 505 PORTER WAY 7300 BOONE AVE NORTH BROOKLINE PARK TRIMPOT DIVISION 1200 COLUMBIA AVE 1555 EFFERSON RD P O BOX 23197 14200 SW KARL BRAUN DR PO BOX 500 ARIEL HOUSE 74A CHAROLETT ST 9898 SW TIGARD ST 13945 SW GALBREATH DR 22125 17TH AVE SE SUITE 117 C O TJBO LIAISON M S 78 210 C O TEMCO NW 1336 SE 51ST STREET 19400 SW TETON AVE TDS 200 Series Digital Oscilloscope Service Manual The table titled Manufacturers cross index shows codes names and addresses of manufacturers or vendors of components listed in the parts list City state zip code LOS ANGELES CA 90039 2410 PORTLAND OR 97214 4657 HILLSBORO OR 97124 6474 PLACENTIA CA 92670 MINNEAPOLIS MN 55428 RIVERSIDE CA 92507 2114 ROCHESTER NY 14692 BEAVERTON OR 97077 0001 LONDON GB W1P1LR TIGARD OR 97223 SHERWOOD OR 97140 BOTHELL WA 98021 BEAVERTON OR 97077 HILLSBORO OR 97123 TUALATIN OR 97062 10 3 Replaceable Parts Table 10 3 Replaceable parts list Fig amp index Tektron
36. N TESTED TDS220 80009 671 4024 04 C011440 C019999 671 5088 00 B060100 B063739 1 CIRCUIT BD ASSY MAIN TESTED TDS220 80009 671 5088 00 C020100 C020787 671 5088 01 B063740 B065809 1 CIRCUIT BD ASSY MAIN TESTED TDS220 80009 671 5088 01 C020788 C021126 671 5088 02 B065810 8068701 1 CIRCUIT BD ASSY MAIN TESTED TDS220 80009 671 5088 02 C021127 C021265 671 5088 03 8068702 B079999 1 CIRCUIT BD ASSY MAIN TESTED TDS220 80009 671 5088 03 C021266 C029999 671 5088 04 B080000 1 CIRCUIT BD ASSY MAIN TESTED TDS220 80009 671 5088 04 C030000 671 4514 01 B010100 B020701 1 CIRCUIT BD ASSY MAIN BOARD TESTED TDS224 80009 671 4514 01 671 4514 02 B020702 B021579 1 CIRCUIT BD ASSY MAIN BOARD TESTED TDS224 80009 671 4514 02 671 4514 03 021580 1 CIRCUIT BD ASSY MAIN BOARD TESTED TDS224 80009 671 4514 03 TDS 200 Series Digital Oscilloscope Service Manual 10 5 Replaceable Parts Table 10 3 Replaceable parts list cont Fig amp index Tektronix part Serial no Serial no Mfr Mfr part number number effective discontd Qty amp description code number 10 1 12 348 1526 00 B010100 B089999 1 SHLD TUBE COPRESSION KNITTED WIRE SHIELDING 0 03 8502 0310 40 C010100 C019999 TUBE 0 312 OD ACCOM 0 292X0 234 GROOVE TDS 210 348 1526 00 010100 059999 SHLD TUBE COPRESSION KNITTED WIRE SHIELDING 0 03 8502 0310 40 010100 019999 0 312 00 0 292 0 234 GROOVE
37. Service Manual Tektronix TDS 200 Series Digital Real Time Oscilloscope 071 0492 02 This document supports firmware version 1 00 and above Warning The servicing instructions are for use by qualified personnel only To avoid personal injury do not perform any servicing unless you are qualified to do so Refer to all safety summaries prior to performing service www tektronix com Copyright Tektronix Inc All rights reserved 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 Box 500 Beaverton OR 97077 TEKTRONIX and TEK are registered trademarks of Tektronix Inc WARRANTY Tektronix warrants that the products that it manufactures and sells will be free from defects in materials and workmanship for a period of three 3 years from the date of purchase from an authorized Tektronix distributor If any such product proves defective during this warranty period 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 Batteries are excluded from this warranty 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 arrang
38. V div DC Coupled 20 MHz when vertical scale set to lt 5 mV div Analog Bandwidth in Peak TDS 210 TDS 220 and TDS 224 Detect mode 5 s div to 50 MHz when vertical scale set to gt 10 mV div 15 MHz when vertical scale set to gt 10 mV div 5 us div typical 20 MHz when vertical scale set to lt 10 mV div Selectable Analog Band 20 MHz width Limit typical Lower Frequency Limit 10 Hz at BNC AC Coupled 1 Hz when using a 10X passive probe Bandwidth is not valid for the P2100 probe when the switch is set to 1X TDS 200 Series Digital Oscilloscope Service Manual Specifications Table 1 1 Specifications cont Vertical Rise Time at BNC typical Peak Detect Response TDS 210 TDS 220 and TDS 224 5 8 ns 3 5 ns Captures 50 or greater amplitude of pulses 210 ns wide 5 s div to 5 us div in the center 6 vertical divisions The oscilloscope reverts to Sample mode when the sec div Horizontal scale setting is from 2 5 us div to 5 ns div The Sample mode can still capture 10 ns glitches DC Gain Accuracy 2 mV div to 5 mV div 4 for Sample or Average acquis 10 mV div and larger 3 for Sample or Average acquis ition mode ition mode DC Measurement Accu racy Average Acquisition Mode Delta Volts Measurement Accuracy Average Acquisi tion Mode P2100 passive probe Bandwidth Attenuation ratio Compensation Range Input resistance
39. all of the voltages are missing check the line fuse on the power supply module If the fuse is defective replace the fuse If the fuse is ok continue with step 8 8 Ifall or some of the voltages are missing the power supply module is probably defective Replace it Backlight Troubleshooting Follow these steps to troubleshoot a nonfunctional backlight 1 Remove the rear case using the procedure Rear Case on page 6 14 2 Turn the instrument on connector on the power supply module The output connector is the one closest to WARNING To avoid electrical shock do not touch the two wire backlight the power line cord 3 Set the test oscilloscope with a 100X probe to measure 1270 Vpk pk 450 Vrms signal at approximately 60 kHz Attach the probe ground lead to the ground lug on the AC line connector and the probe tip to the backlight connector as shown in Figure 6 26 AC ground lug Backlight voltage test point Figure 6 26 Measuring the backlight voltage 4 If the 1270 Vpk pk signal is present the backlight is probably defective Replace the display If the signal is not present proceed with step 5 TDS 200 Series Digital Oscilloscope Service Manual 6 41 Maintenance 5 If the 1270 signal is missing the power supply module is probably defective Replace it Display Troubleshooting Follow these steps to troubleshoot a nonfunctional display 1 Remove the rear case using the pr
40. bration The equipment setups shown in Figure 5 2 are required to complete the adjustment procedure Tables 5 2 and 5 3 list the steps in the procedure and the signal requirement for each step You must enable the service menu to perform the adjustment procedure With the instrument on insert a narrow object such as a plastic alignment tool into the access hole shown in Figure 5 1 until you feel the click of the momentary button Hold this button in and press the front panel UTILITY button Access to service menu enable button Figure 5 1 Service menu enable button A Service menu selection replaces the Language menu selection giving you access to the service routines After adjustment is complete disable the service menu by again holding in the internal momentary button and pressing the front panel UTILITY button TDS 200 Series Digital Oscilloscope Service Manual Adjustment Procedures DC voltage setup 1 DC voltage Source Two Channel Digitizing oscilloscope Four Channel Digitizing oscilloscope Dual banana to BNC adapter BNC cable cable ss 0000000 10 inch 10 inch 10 inch BNC cables BNC cables BNC cables 10 inch BNC T connector BNC cable BNC T connector T 5 BNC T F connector 10 inch BNC cable
41. cedure performed by Date Low limit Test result High limit Channel 1 DC Gain 5 mV div 36 7 mV 200 mVidiv 1449 V 2 Vidiv 14 49 V Channel 2 DC Gain 5 mV div 36 7 mV RESI 200 mvidiv 1449 V 2 Vidiv 14 49 V Channel 3 DC Gain 5 mV div 36 7 mV 200 mVidiv 1449 V 2 Vidiv 14 49 V Channel 4 DC Gain 5 mV div 36 7 mV 200 mVidiv 1449 V 2 V div 14 49 V Channel 1 Bandwidth Channel 2 Bandwidth 2 12 V 2 12 V Channel 3 Bandwidth 2 12V Channel 4 Bandwidth 2 2 V Sample Rate and Delay Time Accuracy 2 divs 2 divs Channel 1 Edge Trigger Sensitivity 7 Channel 2 Edge Trigger Sensitivity ii Channel 3 Edge Trigger Sensitivity table trigger Channel 4 Edge Trigger Sensitivity ae External Edge Trigger Sensitivity 1 Channels 3 and 4 are only on four channel instruments and External Edge trigger is only two channel instruments 4 2 TDS 200 Series Digital Oscilloscope Service Manual Performance Verification Performance Verification Procedures Before beginning these procedures two conditions must first be met m The instrument must have been operating continuously for twenty minutes within the operating temperature range specified You must perform the Self Calibration operation described below If the ambient temperature changes by more than 5 C you must perform the Self Calibration operation again The time required to complet
42. d TDS 200 Series Digital Oscilloscope Service Manual 6 33 Maintenance Installation Use this procedure to install the switch keypad 1 Align the switch keypad into the front case using the five guide posts as shown in Figure 6 23 CAUTION Keep the electrical contacts on the back of the switch pad clean Skin oils and dust will inhibit good electrical contact 2 Check that all buttons are properly seated into place before proceeding 3 Place the entire internal assembly into the front case as shown in Figure 6 16 4 Use the installation procedures for each module removed to reassemble the instrument 6 34 TDS 200 Series Digital Oscilloscope Service Manual Maintenance Display Shield You will need a torque limiting Torx T 15 screwdriver and a flat blade screwdriver for this procedure STOP Removing the display shield from the display module will destroy the display shield gasket Only remove the shield if you intend to replace it with a new shield and gasket assembly Removal First remove the handle power button and rear case using the procedures on pages 6 12 6 13 and 6 14 Then use the following procedure to remove the display shield 1 Remove the entire internal assembly from the front case using the procedure on page 6 24 2 Remove the shield from the display module Refer to Figure 6 24 NOTE You may have to cut through the display shield gasket to remove the shield Carefu
43. describes each column in the parts list Table 10 1 Parts list column descriptions Column Description 1 Figure amp Index Number Items in this section are referenced by figure and index numbers to the exploded view illustrations that follow 2 Tektronix Part Number Use this part number when ordering replacement parts from Tektronix 3and4 Serial Number Column three indicates the serial number at which the part was first effective Column four indicates the serial number at which the part was discontinued No entries indicates the partis good for all serial numbers 5 This indicates the quantity of parts used 6 Name amp Description An item name is separated from the description by a colon Because of space limitations an item name may sometimes appear as incomplete Use the U S Federal Catalog handbook H6 1 for further item name identification 1 Mfr Code This indicates the code of the actual manufacturer of the part 8 Mfr Part Number This indicates the actual manufacturer s or vendor s part number Abbreviations Abbreviations conform to American National Standard ANSI Y 1 1 1972 10 2 TDS 200 Series Digital Oscilloscope Service Manual Replaceable Parts Mfr Code to Manufacturer Table 10 2 Manufacturers cross index Mfr code 07416 0 01 0 05 0 03 14310 32997 77824 80009 TK0JD TK1163 TK1326 TK2376 TK2569 TK2647 TK6181 Cross Index Manufacturer NELSON NAME P
44. e 1X TRIGGER Mode Normal ACQUIRE Sample MEASURE Source An unchecked channel Type Pk Pk TDS 200 Series Digital Oscilloscope Service Manual 4 7 Performance Verification 4 8 2 Asshown below connect the instrument channel selected in the table to the leveled sine wave generator Leveled P sine wave Digitizing oscilloscope generator 00 gg 00000 0 O npo 0000000 Output 50 feedthrough BNC cable terminator 3 Setthe leveled sine wave generator frequency to 60 MHz if you are checking a TDS 210 or to 100 MHz if you are checking a TDS 220 or TDS 224 4 Setthe instrument VOLTS DIV to 500 mV div 5 Setthe instrument SEC DIV to 10 ns div 6 Set the leveled sine wave generator output level to approximately 750 mVp p so that the measured amplitude is approximately 750 mV The measured amplitude can fluctuate around 750 mV 7 Press SET LEVEL TO 50 Adjust TRIGGER LEVEL as necessary and then check that triggering is stable 8 Change the instrument setup using the following steps Press menu button Select menu item Select setting TRIGGER Slope Falling 9 Press SET LEVEL TO 50 Adjust TRIGGER LEVEL as necessary and then check that triggering is stable 10 Change the instrument setup using the following steps Press menu button Select menu item Select setting TRIGGER Slope Rising 11 Disco
45. e body To avoid electric shock while using the probe do not touch metallic portions of the probe head while it is connected to a voltage source Connect the probe to the instrument and connect the ground terminal to ground before you take any measurements Probe Attenuation Setting Probes are available with various attenuation factors which affect the vertical scale readout of the oscilloscope To change or check the probe attenuation setting press the VERTICAL MENU button of the channel you re using and then press the menu selection next to Probe until the correct setting is displayed This setting remains in effect until changed again TDS 200 Series Digital Oscilloscope Service Manual 2 7 Operating Information Factory Setup 2 8 NOTE The default Probe menu attenuation setting is 10X when the oscilloscope is shipped Be sure that the Attenuation switch on the P2100 probe is set to match the Probe menu selection in the oscilloscope The probe switch settings are 1X and 10X Attenuation switch NOTE When the Attenuation switch is set to 1X the P2100 probe limits the bandwidth of the oscilloscope to 7 MHz To use the full bandwidth of the oscilloscope be sure to set the switch to 10X The table below lists the state of the instrument after you select Recall Factory from the SAVE RECALL menu Table 2 1 Factory setup settings Control Acquire mode Acquire of averages Channel selectio
46. e sometimes made to accommodate improved components as they become available and to give you the benefit of the latest improvements Therefore when ordering parts it is important to include the following information in your order Part number m Instrument type or model number Instrument serial number Instrument modification number if applicable If you order a part that has been replaced with a different or improved part your local Tektronix field office or representative will contact you concerning any change in part number Change information if any is located at the rear of this manual Modules can be serviced by selecting one of the following two options Contact your local Tektronix service center or representative for repair assistance Module Exchange In some cases you may exchange your module for a reman ufactured module These modules cost significantly less than new modules and meet the same factory specifications For more information about the module exchange program call 1 800 833 9200 and select option 2 New Modules You may purchase replacement modules in the same way as other replacement parts TDS 200 Series Digital Oscilloscope Service Manual 10 1 Replaceable Parts Using the Replaceable Parts List This section contains a list of the mechanical and or electrical components that are replaceable for the oscilloscope Use this list to identify and order replace ment parts The following table
47. e the entire procedure is approximately one hour WARNING Some procedures use hazardous voltages To prevent electrical shock always set voltage source outputs to 0 V before making or changing any interconnections Self Test This internal procedure is automatically performed every time the instrument is powered on No test equipment or hookups are required Verify that no error messages are displayed before continuing with this procedure Self Calibration self calibration routine lets you quickly optimize the oscilloscope signal path for maximum measurement accuracy You can run the routine at anytime but you should always run the routine if the ambient temperature changes by 5 C or more 1 Disconnect any probes or cables from the channel 1 and channel 2 input connectors 2 Press the UTILITY button and select Do Self Cal to start the routine The routine takes approximately one minute to complete 3 Verify that Self calibration passed TDS 200 Series Digital Oscilloscope Service Manual 4 3 Performance Verification Check DC Gain Accuracy This test checks the DC gain accuracy of all input channels 1 Set the DC voltage source output level to 0 V 2 Setupthe instrument using the following steps Press menu button Select menu item Select setting SAVE Recall RECALL Factory CH1 Probe 1X ACQUIRE Average 16 MEASURE Source An unchecked channel Type Mean 3 As shown below connect the inst
48. ed a sharp knife and needle nose pliers to remove the rear case label CAUTION Removal of a rear case label will destroy it Do not remove it unless it needs to be replaced Removal Use the sharp knife to pry up a corner of the label and use the pliers to peel the label off Installation Use this procedure to install a new rear case label in either a new or the existing rear case 1 Peelthe paper off the back side of the new label 2 Handling the label by its edges only align it with the recess in the rear case as shown in Figure 6 4 3 When properly aligned press the new label into place Rear label Figure 6 4 Installing a new rear case label TDS 200 Series Digital Oscilloscope Service Manual 6 11 Maintenance Handle You will need flat blade screw driver to remove the handle Removal Use this procedure to remove the handle 1 Place the instrument on its feet 2 With the handle laying down pry one end of the handle out of the case as shown in Figure 6 5 NOTE Use care not to mar the surface with the screwdriver 3 Slide the handle towards the back of the rear case Figure 6 5 Removing the handle 6 12 TDS 200 Series Digital Oscilloscope Service Manual Maintenance Installation Use this procedure to install the handle 1 Place the instrument on its feet 2 From behind the rear case with the handle laying
49. ements for the performance of service Customer shall be responsible for packaging and shipping the defective product to the service center designated by Tektronix shipping charges prepaid and with a copy of customer proof of purchase 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 or integration increases the time or difficulty of servicing the product THIS WARRANTY IS GIVEN BY TEKTRONIX WITH RESPECT TO THE LISTED PRODUCTS IN LIEU OF ANY OTHER WARRANTIES EXPRESS OR IMPLIED TEKTRONIX AND ITS VENDORS DISCLAIM ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTI
50. emperature compensation and replaceable backlight Setup and waveform storage Autoset for quick setup m Waveform averaging and peak detection m Digital real time oscilloscope at least ten times over sampling m Dual time base m Video trigger capability m RS 232 GPIB and Centronics communication ports easily added with optional extension modules m Variable persistence display W User interface available in ten user selectable languages 2 2 TDS 200 Series Digital Oscilloscope Service Manual Operating Information Installation Power Cord Use only power cords designed for your oscilloscope Use a power source that delivers 85 to 275 47 to 63 Hz Refer to page 10 9 for a list of available power cords Use the power cord notch to help route the cord to the rear of the instrument and avoid inadvertently disconnecting the power source Power cord notch Securing cable Figure 2 1 Routing the power cord and security cable Security Loop Use the built in cable channels to secure both your instrument and extension module to your location TDS 200 Series Digital Oscilloscope Service Manual 2 3 Operating Information Extension Modules You can increase the feature set of your oscilloscope by inserting an extension module Refer to page 10 9 for information about the available modules Figure 2 2 shows the proper way to install a module without bending the connecting pi
51. es cont Description of accessory Replacement extension module instructions English French German Italian Spanish Portuguese Japanese Korean Simplified Chinese Traditional Chinese Russian Replacement programmer manual Tektronix part number or nomenclature 071 0409 XX 071 0483 XX 071 0485 XX 071 0484 XX 071 0482 XX 071 0486 XX 071 0488 XX 071 0491 XX 071 0489 XX 071 0490 XX 071 0487 XX 071 0493 XX TDS 200 Series Digital Oscilloscope Service Manual
52. fective in some way that the internal diagnostics cannot detect Replace it Error Log Failures that occur during the power up diagnostics place an entry in the error log The error log list can be accessed anytime by pressing the UTILITY button and selecting Error Log Table 6 3 lists the possible error codes and possible causes Menu Comments System Displays the system menus Status Do Self Cal Performs a self calibration Error Log Displays a list of any errors logged This listis useful when contacting a Tektronix Service Center for help troubleshooting problems Service Displays the service menus for adjustment procedures and diagnostics Table 6 3 List of error codes Error code Description Probable cause 0 DI Diagnostics internal error Contact Tektronix 4 DI diagnostics failed Main board or power supply failure TDS 200 Series Digital Oscilloscope Service Manual Maintenance Table 6 3 List of error codes cont Error code 5 DI CH2 diagnostics failed Main board or power supply failure 6 DI 1 Dl 10 DI 11 DI Line trigger diagnostics failed ADG321 diagnostics failed Extension module RAM failed Extension module checksum failed Main board or power supply failure Main board or power supply failure Extension module failure Extension module failure 255 Software Contact Tektronix Clearing the Error Log After fixing a problem clear the error log 1
53. fied for this product Avoid Electric Overload To avoid electric shock or fire hazard do not apply a voltage to a terminal that is outside the range specified for that terminal Avoid Overvoltage To avoid electric shock or fire hazard do not apply potential to any terminal including the common terminal that varies from ground by more than the maximum rating for that terminal Avoid Electric Shock To avoid injury or loss of life 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 Connect the Probe Properly The probe ground lead is at ground potential Do not connect the ground lead to an elevated voltage Do Not Operate Without Covers To avoid electric shock or fire hazard do not operate this product with covers or panels removed Use Proper Fuse To avoid fire hazard use only the fuse type and rating specified for this product Do Not Operate in Wet Damp Conditions To avoid electric shock do not operate this product in wet or damp conditions Do Not Operate in an Explosive Atmosphere To avoid injury or fire hazard do not operate this product in an explosive atmosphere Product Da
54. for each module removed to reassemble the instrument Internal chassis power supply Ribbon cable to main board 9 lt Do not pinch backlight cable when installing the display module Figure 6 20 Installing the display module Front Panel Module 6 30 You will need a torque limiting Torx T 15 screwdriver and a flat blade screwdriver for this procedure Removal First remove the handle power button and rear case using the procedures on pages 6 12 6 13 and 6 14 Then use the following procedure to remove the front panel module 1 Remove the entire internal assembly from the front case using the procedure on page 6 24 Disconnect the front panel ribbon cable at J200 on the main board Refer to Figure 6 17 TDS 200 Series Digital Oscilloscope Service Manual Maintenance 3 Disengage the two securing tabs at the bottom of the board and slide the board down and out of the internal chassis Refer to Figure 6 21 5 SS Internal chassis S P P dd E a t SM ue S z Front panel module Figure 6 21 Removing the front panel module TDS 200 Series Digital Oscilloscope Service Manual 6 31 Maintenance Installation Use this procedure to install the front panel module 1 Route the front panel ribbon cable through the opening in the chassis as shown in Figure 6 22
55. ge the instrument setup using the following steps Press menu button Select menu item Select setting 9 Press SET LEVEL TO 50 Adjust TRIGGER LEVEL as necessary and then check that triggering is stable 10 Change the instrument setup using the following steps Press menu button Select menu item Select setting 11 Disconnect the test setup 4 10 TDS 200 Series Digital Oscilloscope Service Manual i Ae Adjustment Procedures Required Equipment This chapter contains adjustment procedures for the TDS 200 Series Digital Real Time Oscilloscope Only qualified personnel should perform service procedures Read the Service Safety Summary and the General Safety Summary before performing any service procedures Also refer to the chapter Operating Information for information about using the TDS 200s NOTE The voltage references inside the TDS 200s are very stable over time and should not require routine updates Before performing any procedure in this chapter first verify that the instrument does not meet specifications Refer to the chapter Performance Verification to verify the specifications The following equipment or a suitable equivalent is required to complete these procedures Table 5 1 Required equipment Description Minimum requirements Examples DC Voltage Source 20 V to 20 V 0 1 accuracy Wavetek 9100 Universal Calibration System with Oscilloscope Calibration Module Option 250 Leveled Sine
56. he switch keypad and the front panel board contacts If cleaning does not solve the problem the switch keypad front panel board or main board may be defective Use the procedure below to isolate the problem 8 Replace the switch keypad and then retest the buttons If the problem persists proceed to step 9 6 44 TDS 200 Series Digital Oscilloscope Service Manual Maintenance 9 Use the test oscilloscope and set the Attenuation switch to 10X on the P2100 probe to probe the front panel module cable connector at J603 two channel oscilloscopes or J103 four channel oscilloscopes on the main board The table below describes the signals you should expect to see Signal J603 Description 1 FDCLR Positive Pulses 100 ns wide typical 280 us period 2 3 Negative clock pulses 100 ns wide typical 4 5 us period 4 GND 0 V ground 5 FPDATA Negative pulse burst 300 us period typical Signal J103 Description 1 GND 0 V 2 Negative clk pulse 80 ns wide 4 5 us period typical 3 Positive pulse 100 ns wide typical 280 us period 4 Positive pulse 100 ns wide 280 us period typical 5 Negative pulse 80 us wide 4 5 us period typical 6 GND 0 V 7 Negative pulse burst 300 us typical 8 5 V 9 Negative pulse burst 300 us typical 10 14 V typical 10 If all of the signals are present the front panel board is probably defective 11 12 13 14 Replace it If some or all
57. here to locate a list of replaceable modules m Summary of Procedures on page 6 7 lists the procedures for removal and installation of modules Rear Feet on page 6 8 begins a series of procedures that describe the removal and installation of modules Please read the following warning statement Then read the following general instructions before removing a module WARNING Only qualified personnel should perform service procedures Before doing this or any other procedure in this manual read the General Safety Summary and Service Safety Summary found at the beginning of this manual Always disconnect the power cord before disassembling any portion of the instrument Also to prevent damage to electrical components read Preventing ESD on page 6 1 1 Use Figure 10 1 the exploded view of the instrument on page 10 8 to give you an overview of how the entire instrument is assembled 2 Read the Summary of Procedures on page 6 7 to understand which procedure to use to access a given module Then read Tools Required page 6 6 for a list of tools needed to remove and install modules in the oscilloscope 3 If you are disassembling the oscilloscope for cleaning refer to the Inspection and Cleaning procedure on page 6 3 for cleaning instructions TDS 200 Series Digital Oscilloscope Service Manual 6 5 Maintenance Tools Required You will need the following tools to remove and replace all the modules in the osc
58. illoscope Tools Torque limiting screwdriver 12 in Ib 1 3 N m range with Torx amp T 15 tip Screwdriver with inch flat blade Pliers Sharp knife X ACTO knife or equivalent List of Modules Mechanical Parts List chapter provides a list of all replaceable modules Any electrical or mechanical module assembly or part listed in the parts list is referred to as a module 6 6 TDS 200 Series Digital Oscilloscope Service Manual Maintenance Summary of Procedures Table 6 2 lists all procedures in order of increasing complexity Complete disassembly is best achieved by following the procedures in the order given Table 6 2 List of procedures Procedure Begins on Page Rear Feet 6 8 Front Case Label 6 10 Rear Case Label 6 11 Handle 6 12 Power Button 6 13 Rear Case 6 14 Front Feet 6 16 EMI Clips 6 17 Flip Stand 6 18 Power Line Fuse 6 20 Power Supply Module 6 21 Front Panel Knobs 6 23 Internal Assembly 6 24 Main Board Module 6 26 Display Module 6 28 Front Panel Module 6 30 Keypad 6 33 Display Shield 6 35 Front Case 6 37 TDS 200 Series Digital Oscilloscope Service Manual 6 7 Maintenance Rear Feet tools are required to remove the feet Removal Use this procedure to remove the rear feet 1 Place the instrument face down on a soft surface such as an anti static mat 2 Slide the feet up and out of the rear case as shown in Figure 6 1 NOTE You may want to use a flat
59. index Tektronix part Serial no Serial no Mfr Mfr part number number effective discont d Qty amp description code number 10 1 11 671 3546 00 B010100 B014281 1 CKT BB ASSY MAIN TDS210 80009 671 3546 00 671 3546 01 B014282 B024456 1 CIRCUIT BD ASSY MAIN TDS210 80009 671 3546 01 671 3546 02 B024457 B038049 1 CIRCUIT BD ASSY MAIN TESTED TDS210 80009 671 3546 02 C010100 C010495 671 3546 03 8038050 B051919 1 CIRCUIT BD ASSY MAIN TESTED TDS210 80009 671 3546 03 C010496 C011104 671 3546 04 B051920 B089999 1 CIRCUIT BD ASSY MAIN TESTED TDS210 80009 671 3546 04 C011105 C019999 671 4806 00 8090100 8096042 1 CIRCUIT BD ASSY MAIN TESTED TDS210 80009 671 4806 00 C020100 C020839 671 4806 01 B096043 B099187 1 CIRCUIT BD ASSY MAIN TESTED TDS210 80009 671 4806 01 C020840 C021678 671 4806 02 B099188 B103999 1 CIRCUIT BD ASSY MAIN TESTED TDS210 80009 671 4806 02 C021679 C022228 671 4806 03 B104000 B119999 1 CIRCUIT BD ASSY MAIN TESTED TDS210 80009 671 4806 03 C022229 C029999 671 4806 04 B120000 1 CIRCUIT BD ASSY MAIN TESTED TDS210 80009 671 4806 04 C030000 671 4024 00 B010100 B014264 1 CIRCUIT BD ASSY MAIN TDS220 80009 671 4024 00 671 4024 01 B014265 B022715 1 CIRCUIT BD ASSY MAIN TDS220 80009 671 4024 01 671 4024 02 B022716 B032608 1 CIRCUIT BD ASSY MAIN TDS220 80009 671 4024 02 C010100 C010567 671 4024 03 B032609 B042661 1 CIRCUIT BD ASSY MAIN TESTED TDS220 80009 671 4024 03 C010568 C011439 671 4024 04 B042662 B059999 1 CIRCUIT BD ASSY MAI
60. ion 1 PANEL FRONT ABS TDS224 1 SHIELD ELEC DISPLAY 0 062 GE LEXAN HARDCOATED BOTH SURFACES PKG W PROTECTIVE SHEETS 1 FLIP STAND PC ABS BAY BLEND FR110 TEXTURED 4 CONTACT ESD ESD CLIP 0 005 C17200 BECU ACCO PCB 0 5 X 0 335 WIDE CONTACT W 0 230 H X 0 5 3 PRONGED TAB TDS210 SD ESD CLIP 0 005 C17200 BECU ACCO 4 PCB 0 5 X 0 PRONGED TAB TDS210 SD ESD CLIP 0 005 C17200 BECU ACCO 4 PCB 0 5 X 0 PRONGED TAB TDS220 SD ESD CLIP 0 005 C17200 BECU ACCO 4 PCB 0 5 X 0 PRONGED TAB TDS220 SD ESD CLIP 0 005 C17200 BECU ACCO 4 PCB 0 5 X 0 PRONGED TAB TDS224 335 335 335 335 WIDE CONTACT W 0 230 H X 0 5 3 WIDE CONTACT W 0 230 H X 0 5 3 WIDE CONTACT W 0 230 H X 0 5 3 WIDE CONTACT W 0 230 H X 0 5 3 1 LAMP CCFT REPLACEMENT FOR LCD W LEADS TDS 200 Series Digital Oscilloscope Service Manual 0 062 0 062 0 062 0 062 0 062 Mfr code TK6181 07416 TK1163 TK1326 TK1326 TK1326 TK1326 TK1326 TK2569 Mfr part number 333 4306 00 337 4069 00 367 0476 00 131 6173 00 131 6173 00 131 6173 00 131 6173 00 131 6173 00 LMOF 2964 10 7 Replaceable Parts 020 g Q e do Figure 10 1 Exploded diagram TDS 200 Series Digital Oscilloscope Service Manual 10 8 Replaceable Parts Table 10 4 lists the
61. ix part Serial no Serial no Mfr Mfr part number number effective discont d Qty Name amp description code number 10 1 1 202 0345 00 B010100 B016657 1 CASE BACKMACROBLEND DP 4 1368 TD5210 TK1163 202034500 202 0345 01 016658 1 CASE BACK BAYBLEND FR110 TDS210 TK1163 202 0345 01 202 0345 00 8010100 8016533 1 CASE BACK MACROBLEND DP4 1368 TDS 220 TK1163 202034500 202 0345 01 B016534 1 CASE BACK BAYBLEND FR110 TDS220 TK1163 202 0345 01 202 0345 01 1 CASE BACK BAY BLEND FR110 TDS224 TK1163 202 0345 01 10 12 366 0774 00 1 PUSH BUTTON PC ABS BAYBLEND FR110 TEXTURED TK1163 366 0774 00 10 1 3 213 1099 00 2 SCREW TPG PT K40 1 79 X 31 MM STEEL ZINC BLACK 0 01 213 1099 00 CHROMATE T 15 TORX SLOT FLAT PNH 10 1 4 334 9262 00 1 MARKER IDENT LABEL MARKED WARNING TO AVOID 0KB05 334 9262 00 ELECTRIC 3 765 X 3 990 0 010 POLY 10 155 EXTENSION MODULE OPTIONAL PLUG IN 80000 052 ACCESSORY TDS2CM 10 1 6 367 0472 00 1 HANDLE CARRYING MACROBLEND TK1163 367 0472 00 10 1 7 348 1484 01 2 FOOT SANTOPRENE BLACK 101 64 TEXTURED TK1163 348 1484 01 10 1 8 159 0399 00 1 FUSE 6 3 AMP 5 X 20 MM TIME DELAY TKOJD 159 0399 00 10 1 9 119 5417 00 B010100 B040351 1 POWER SUPPLY 11W 5 0V 1 0A 5 0V 0 3A 23V 14310 SW422KA0000F02 C010100 C010445 10MA 450VAC 30KHZ 5MA 85 275VAC 45 66HZ INPUT TDS210 119 5417 01 B040352 B049398 1 POWER SUPPLY CUSTOM AC DC 11W 85 275VAC 45 66HZ 14310 51 422 0000 02 C010446 C010878 INPUT 5 0V 1 0 5 0V 0 3A 23V 10MA 45
62. k station 4 Nothing capable of generating or holding a static charge should be allowed on the work station surface 5 Handle circuit boards by the edges when possible 6 Do not slide the modules over any surface 7 Avoid handling modules in areas that have a floor or work surface covering capable of generating a static charge Inspection and Cleaning General Care A 6 2 This section describes how to inspect for dirt and damage and how to clean the instrument Inspection and cleaning are done as preventive maintenance Preventive maintenance when done regularly may prevent malfunctions and enhance reliability Preventive maintenance consists of visually inspecting and cleaning the instrument and using general care when operating it How often to do mainte nance depends on the severity of the environment in which the instrument is used A proper time to perform preventive maintenance is just before adjustment of the instrument Protect the instrument from adverse weather conditions The instrument is not waterproof Do not store or leave the instrument where the liquid crystal display LCD will be exposed to direct sunlight for long periods of time The front and back cases help keep dust out of the instrument and must be in place during normal operation CAUTION To avoid damage to the instrument or probes do not expose it to any sprays liquids or solvents TDS 200 Series Digital Oscilloscope Service Ma
63. lected in the table to the leveled sine wave generator Leveled sine wave generator Digitizing oscilloscope 0 0 gg 0 00000 0 Output O no C3 0000000 50 feedthrough BNC cable terminator Set the instrument VOLTS DIV to 500 mV div Set the instrument SEC DIV to 10 us div Set the leveled sine wave generator frequency to 50 kHz on RO Set the leveled sine wave generator output level so the peak to peak measurement is between 2 98 V and 3 02 V 7 Setthe leveled sine wave generator frequency to 60 MHz if you are checking a TDS 210 or to 100 MHz if you are checking a TDS 220 or TDS 224 TDS 200 Series Digital Oscilloscope Service Manual 4 5 Performance Verification Check Sample Rate and 4 6 Delay Time Accuracy 8 Setthe instrument SEC DIV to 10 ns div 9 Check that the peak to peak measurement is 22 12 V 10 Disconnect the test setup 11 Repeat steps 1 through 10 until all input channels have been checked This test checks the time base accuracy 1 Set up the instrument using the following steps Press menu button Select menu item Select setting SAVE Recall RECALL Factory CH1 Probe 1X 2 Connect the instrument to the time mark generator as shown below Time mark Digitizing oscilloscope generator 00 O go 0 00000 0 Output O
64. lly remove any remaining gasket and adhesive from the LCD display module Display shield 5 15524 Front case Figure 6 24 Removing the display shield TDS 200 Series Digital Oscilloscope Service Manual 6 35 Maintenance 6 36 Installation Use this procedure to install the display shield 1 Align the display shield into the front case using the two guide posts as shown in Figure 6 25 2 Remove the paper backing from the adhesive lining of the gasket 3 Carefully place the entire internal assembly into the front case as shown in Figure 6 25 making sure that the display module properly contacts the display shield foam 4 Use the installation procedures for each module removed to reassemble the instrument Internal assembly Display shield foam with adhesive Align display shield with guide posts on the inside of the front case Front case Conductive foam pad TDS 210 and TDS 220 Figure 6 25 Installing the display shield TDS 200 Series Digital Oscilloscope Service Manual Maintenance Front Case You will need a torque limiting Torx T 15 screwdriver and a flat blade screwdriver for this procedure Removal First remove the handle power button and rear case using the procedures on pages 6 12 6 13 and 6 14 Then use the following procedure to remove the display shield 1 Remove the entire internal
65. loded diagram 10 7 TDS 200 Series Digital Oscilloscope Service Manual iii Table of Contents List of Tables Table 1 1 Specifications 1 1 Table 1 2 General specifications 1 5 Table 2 1 Factory setup settings 2 8 Table 5 1 Required equipment 5 1 Table 5 2 TDS 210 and TDS 220 Adjustment steps 5 5 Table 5 3 TDS 224 Adjustment steps 5 7 Table 6 1 Internal inspection checklist 6 3 Table 6 2 List of procedures 6 7 Table 6 3 List of error codes 6 46 Table 10 1 Parts list column descriptions 10 2 Table 10 2 Manufacturers cross index 10 3 Table 10 3 Replaceable parts list 10 3 Table 10 4 Replaceable standard accessories 10 8 Table 10 5 Replaceable optional accessories 10 8 TDS 200 Series Digital Oscilloscope Service Manual HEN AEN General Safety Summary 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 Injury Precautions Use Proper Power Cord To avoid fire hazard use only the power cord speci
66. mage Use Proper Power Source Do not operate this product from a power source that Precautions applies more than the voltage specified Provide Proper Ventilation To prevent product overheating provide proper ventilation Do Not Operate With Suspected Failures If you suspect there is damage to this product have it inspected by qualified service personnel TDS 200 Series Digital Oscilloscope Service Manual V General Safety Summary Symbols and Terms Terms 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 AN m DANGER Protective Ground ATTENTION Double High Voltage Earth Terminal Refer to Manual Insulated Certifications and Refer to the specifications section for a listing of certifications and compliances Compliances that apply to this product vi TDS 200 Series Digital Oscilloscope Service Manual
67. maintenance m Inspection and Cleaning provides procedures for inspecting the instrument and cleaning its external and internal modules m Removal and Installation Procedures provide procedures for the removal and installation of modules m Troubleshooting provides information for isolating failed modules W Repackaging Instructions provides packaging information for shipment or storage Preparation Only qualified personnel should perform service procedures Read the Service Safety Summary and the General Safety Summary before performing any service procedures Also refer to the chapter Operating Information for information about using the oscilloscope Preventing ESD When performing any service which requires internal access to the instrument adhere to the following precautions to avoid damaging internal modules and their components due to electrostatic discharge ESD CAUTION Static discharge can damage any semiconductor component in this instrument 1 Minimize handling of static sensitive modules 2 Transport and store static sensitive modules in their static protected containers or on a metal rail Label any package that contains static sensitive modules TDS 200 Series Digital Oscilloscope Service Manual 6 1 Maintenance 3 Discharge the static voltage from your body by wearing a grounded antistatic wrist strap while handling these modules Do service of static sensitive modules only at a static free wor
68. mponents that Contain Mercury The cold cathode fluorescent tube located in the liquid crystal display backlight contains trace elements of mercury When you are ready to reclaim the instrument you must properly transfer it according to local regulations concerning mercury containing equipment or ship the instru ment to the Tektronix Recycling Operations RAMS You can contact Tektronix for the RAMS shipping address and instructions TDS 200 Series Digital Oscilloscope Service Manual E Specifications All specifications apply to the TDS 200 Series Digital Real Time Oscilloscope with a P2100 probe with the Attenuation switch set to 10X unless noted otherwise To meet specifications two conditions must first be met The instrument must have been operating continuously for twenty minutes within the specified operating temperature You must perform the Self Cal operation accessible through the utility menu if the operating temperature changes by more than 5 C All specifications are guaranteed unless noted typical Specifications that are marked with the symbol are checked in the chapter Performance Verification Table 1 1 Specifications Acquisition Acquisition Modes Sample Peak detect and Average Acquisition Rate typical Up to 180 waveforms per second per channel Sample acquisition mode no measurements Single Sequence Acquisition Mode Acquisition Stops After Sample Peak Detect
69. n Cursor H Bar position Cursor V Bar position Setting Sample 16 Channel 1 on 3 2 divisions from the center 2 divisions from the center Cursor function Off Cursor time units Seconds Delayed time base time div 50 us div Delay time delayed runs after main 50 us Display format YT Display graticule type Full Display contrast 50 Display style Vectors Display accumulate time 500 ms Edge trigger coupling DC TDS 200 Series Digital Oscilloscope Service Manual Operating Information Table 2 1 Factory setup settings cont Control Setting Edge trigger level 0 0 V Edge trigger slope Rising Edge trigger source Channel 1 Horizontal main trigger position 5096 Horizontal time base Main only Main time base time div 500 us div Math waveform function CH1 CH2 Saved setups No change Saved waveforms No change Trigger holdoff Minimum 500 ns Trigger mode Auto Trigger type Edge Vertical bandwidth all channels Full Vertical coupling all channels DC Vertical position all channels 0 div Vertical volts div all channels 100 mV div TDS 200 Series Digital Oscilloscope Service Manual Operating Information 2 10 TDS 200 Series Digital Oscilloscope Service Manual SS 559 Theory of Operation Main Board Acquisition System Display System Processor System Input Signal Interface Probe Compensation This chapter describes the electrical operation of the TDS
70. ng tools and equipment to troubleshoot the instrument Tools and equipment Example Oscilloscope with 1X 10X and 100X probes Tektronix TDS 200 or TDS 300 series with standard accessory 1X 10X probe and optional 100X probe DMM Tektronix TX series digital multimeter TDS 200 Series Digital Oscilloscope Service Manual Maintenance Begin Here Begin with this troubleshooting tree to isolate a problem to a specific trouble shooting procedure Plug the instrument into a proper power source and press the power button Go to Troubleshooting Power Supply page 6 40 Does the instrument turn on Goto Checking Probe Comp page 6 40 Is the display functioning properly Is there a display Check diagnostic screen displayed at power on Is display color abnormal Go to Troubleshooting dark blue green or Display page 6 42 orange Goto Checking Probe page 6 40 Doe backig ht Go to Troubleshooting 1 come on Backlight page 6 41 Instrument should be functioning Try the Other Troubleshooting procedures page 6 46 and the Front Panel Troubleshooting page 6 43 if other problems exist TDS 200 Series Digital Oscilloscope Service Manual 6 39 Maintenance 6 40 PROBE COMP Output Power Supply Troubleshooting When the instrument is on and operating properly the PROBE COMP output should generate a square wave
71. nnect the test setup 12 Repeat steps 1 through 11 until all input channels have been checked TDS 200 Series Digital Oscilloscope Service Manual Performance Verification Check External Edge Trigger Sensitivity TDS 210 and TDS 220 only this test checks the edge trigger sensitivity for the external trigger 1 Set up the instrument using the following steps Press menu button Select menu item Select setting SAVE Recall RECALL Factory CH1 Probe 1X TRIGGER Source Ext Mode Normal ACQUIRE Sample MEASURE Source CH1 Type Pk Pk 2 Connect the instrument to the leveled sine wave generator as shown below Leveled sine wave generator Digitizing oscilloscope 500 feedthrough terminator BNC cable BNC T connector 3 Set the leveled sine wave generator frequency to 60 MHz if you are checking a TDS 210 or to 100 MHz if you are checking a TDS 220 4 Set the instrument VOLTS DIV to 500 mV div 5 Set the instrument SEC DIV to 10 ns div 6 Set the leveled sine wave generator output level to approximately 750 mV so that the measured amplitude is approximately 750 mV The measured amplitude can fluctuate around 750 mV 7 Press SET LEVEL TO 50 Adjust TRIGGER LEVEL as necessary and then check that triggering is stable TDS 200 Series Digital Oscilloscope Service Manual 4 9 Performance Verification 8 Chan
72. ns CAUTION Electrostatic discharge ESD can damage components in the extension module and the oscilloscope Do not operate your instrument with the extension module connector exposed m 5 Figure 2 2 Installing an extension module 2 4 TDS 200 Series Digital Oscilloscope Service Manual Operating Information Functional Check Perform this quick functional check to verify that your instrument is operating correctly 1 Turn on the instrument Wait until the display shows that all self tests passed Push the SAVE RECALL button select Setups in the top menu box and push the Recall Factory menu box The default Probe menu attenuation setting is 10X 2 Setthe switch to 10X on the P2100 probe and connect the oscilloscope probe to channel 1 To do this align the slot in the probe connector with the key on the CH 1 BNC push to connect and twist to the right to lock the probe in place Attach the probe tip and reference lead to the PROBE COMP connectors 3 Push the AUTOSET button Within a few seconds you should see a square wave in the display approximately 5 V at 1 KHz peak to peak Push the CH 1 MENU button twice to turn off channel 1 push the CH 2 MENU button to turn on channel 2 repeat steps 2 and 3 For TDS 224 repeat for CH 3 and CH 4 TDS 200 Series Digital Oscilloscope Service Manual 2 5 Operating Information Probe Compensation Perform this adjustment to match your probe t
73. ns n e Se son j50 CH4 C e Figure 3 2 Module level block diagram four channel 34 TDS 200 Series Digital Oscilloscope Service Manual HEN OS Performance Verification This chapter contains performance verification procedures for the specifications marked with the symbol The following equipment or a suitable equivalent is required to complete these procedures Description DC Voltage Source Leveled Sine Wave Generator Minimum requirements 17 5 mV to 7 V 30 576 accuracy 50 kHz and 100 MHz 3 amplitude accuracy Time Mark Generator 10 ms period 25 ppm accuracy Examples Wavetek 9100 Universal Calibration S ystem with Oscilloscope Calibration Module Option 250 Fluke 5500A Multi product Calibrator with Oscilloscope Calibration Option Option 5500A SC 50 Q BNC Cable BNC male to BNC male Tektronix part number 36 in 1 m long 012 0482 00 50 Q BNC Cable BNC male to BNC male Tektronix part number 10 25 cm long 012 0208 00 50 Q Feedthrough Termination BNC male and female Tektronix part number connectors 011 0049 01 Dual Banana to BNC Adapter Banana plugs to BNC female Tektronix part number 103 0090 00 BNC T Adapter BNC male to dual BNC female Tektronix part number connectors 103 0030 00 TDS 200 Series Digital Oscilloscope Service Manual Performance Verification Test Record Serial number Test Self Test Oscilloscope tests Pro
74. nti static mat 2 Slide the rear case over the assembly until the bottom tabs of the front case lock into the rear case CAUTION Be careful to align the guide ribs and to not pinch any wires or other parts between the front and rear cases If used make sure that the copper mesh grounding tube is in the proper place as shown in Figure 6 7 3 Install the two screws located in the handle recesses CAUTION Avoid cross threading the screws that secure the rear case to the front case An easy way to avoid this is to slip the screw into the hole and using slight pressure slowly rotate the screw counterclockwise until you feel the screw slip into the screw threads Then tighten the screw clockwise A properly started screw will have very little resistance going in 4 Install the handle and the power button TDS 200 Series Digital Oscilloscope Service Manual Maintenance i Retaining screw Retaining 2 Copper mesh tubing Front case Figure 6 7 Removing and installing the rear cover TDS 200 Series Digital Oscilloscope Service Manual 6 15 Maintenance 6 16 Front Feet You will need a torque limiting Torx T 15 screwdriver and a flat blade screwdriver for this procedure Removal First remove the handle power button and rear case using the procedures on pages 6 12 6 13 and 6 14 Then slide the front feet out of the front case as shown in Figure 6 8 Installation Slide the fee
75. nual Maintenance Inspection and Cleaning Inspect and clean the instrument and probes as often as operating conditions Procedures require The collection of dirt on internal components can cause them to overheat and breakdown Dirt also provides an electrical conduction path that could cause an instrument failure especially under high humidity conditions Inspection Exterior Inspect the outside of the instrument for damage wear and missing parts Instruments that appear to have been dropped or otherwise abused should be checked thoroughly to verify correct operation and performance Immediately repair defects that could cause personal injury or lead to further damage to the instrument Cleaning Procedure Exterior To clean the instrument exterior and probes perform the following steps 1 Remove loose dust on the outside of the instrument and probes with a lint free cloth Use care to avoid scratching the clear plastic display shield 2 Usea soft cloth dampened with water to clean the instrument You can use a 75 isopropyl alcohol solution for more efficient cleaning CAUTION To avoid damage to the surface of the instrument or probes do not use any abrasive or chemical cleaning agents Inspection Interior During normal use the instrument case guards the internal components against common dust and dirt However if it appears that the instrument may have been damaged or has been exposed to an unusually dir
76. o the input channel This should be done whenever you attach a probe for the first time to any input channel PROBE AUTOSE 1 Setthe Probe menu attenuation to 10X Set the switch to 10X on the P2100 COMP T button probe and connect the oscilloscope probe to channel 1 Attach the probe tip and reference lead to the PROBE COMP connectors and then press AUTOSET If using the probe hook tip ensure a proper connection by firmly twisting the N onto the probe OOO 2 CH1 ele par T 2 Check the shape of the displayed waveform Overcompensated at et Undercompensated Compensated correctly 3 f necessary adjust your probe Repeat as necessary 2 6 TDS 200 Series Digital Oscilloscope Service Manual Operating Information Self Calibration Probe Safety AN The self calibration routine lets you quickly optimize the oscilloscope signal path for maximum measurement accuracy You can run the routine at anytime but you should always run the routine if the ambient temperature changes by 5 C or more To compensate the signal path disconnect any probes or cables from the channel input connectors Then press the UTILITY button and select Do Self Cal to confirm that you are ready to proceed A guard around the probe body provides a finger barrier for protection from electric shock Finger guard WARNING To avoid electric shock when using the probe keep fingers behind the guard on the prob
77. ocedure Rear Case on page 6 14 2 Turn the instrument on NOTE Without a functional display module the simplest way to verify that the instrument is on and functioning is to check for a signal at the PROBE COMP output The PROBE COMP output generates approximately a 5 V 1 kHz squarewave 3 Use the test oscilloscope and set the Attenuation switch to 10X on the P2100 probe to probe the display cable connector at J202 two channel instruments or J102 four channel instruments on the main board The table below describes the signals you should expect to see Signal at J202 J102 Description Pin 1 marked with 44 10 VDC to 22 VDC Pin2 23 VDC to 25 VDC Pin3 Digital data high 25 V low 2 0 V Pin4 Digital data high 25 V low 20 V Pin5 Digital data high 25 V low 20 V Pin6 Digital data high 25 V low 20 V Pin 7 0 V ground Pin8 0 V ground Pin9 5 Voc Pin 10 1 89 MHz clock 528 ns period 50 duty cycle appears in bursts high 5 V low 20 V Pin 11 19 3 kHz clock 51 7 us period 16 duty cycle high 25 V low 0 V Pin 12 closestto BNC end of 75 5 Hz clock 13 2 ms period 0 4 duty cycle instrument high 25 V low 20 V 4 Ifallthe signals are present the display module is probably defective 6 42 Replace it If all or some of the signals are missing continue with step 5 TDS 200 Series Digital Oscilloscope Service Manual Maintenance 5 Turn the instrument off and
78. pter Specifications for a complete listing of the environmental characteristics TDS 200 Series Digital Oscilloscope Service Manual Ae Options There are no options available for the TDS 200 Series Digital Real Time Oscilloscopes For a list of available accessories refer to chapter Mechanical Parts List TDS 200 Series Digital Oscilloscope Service Manual 7 1 Options 7 2 TDS 200 Series Digital Oscilloscope Service Manual TUAE Electrical Parts List Refer to the Mechanical Parts List chapter for a complete listing and description of replaceable parts for the TDS 200 Series Digital Real Time Oscilloscope TDS 200 Series Digital Oscilloscope Service Manual 8 1 Electrical Parts List 8 2 TDS 200 Series Digital Oscilloscope Service Manual EV AN Diagrams See Figure 3 1 on page 3 3 or Figure 3 2 on page 3 4 for a block interconnect diagram of your oscilloscope There are no additional diagrams in this chapter TDS 200 Series Digital Oscilloscope Service Manual 9 1 Diagrams 9 2 TDS 200 Series Digital Oscilloscope Service Manual YS Replaceable Parts This chapter contains a list of the replaceable modules for the TDS 200 Series Digital Real Time Oscilloscope Use this list to identify and order replacement parts Parts Ordering Information Module Servicing Replacement parts are available through your local Tektronix field office or representative Changes to Tektronix products ar
79. rator 50 Ohm 20 MHz 2 5 Vp p 55 56 inewave Generator 50 Ohm TDS 210 60 MHz 2 5 Vp TDS 220 100 MHz 2 5 Vp p 5 6 TDS 200 Series Digital Oscilloscope Service Manual Adjustment Procedures Table 5 3 TDS 224 Adjustment steps Step Equipment setup Signal source setting Input DC Voltage 1 DC Voltage 1 DC Voltage 1 0 0 V CH1 CH2 CH3 2 0 V 27 DC Voltage 1 1 6V 28 DC Voltage 1 2 0V 29 DC Voltage 1 20 0 V 30 DC Voltage 1 0 0 V TDS 200 Series Digital Oscilloscope Service Manual Adjustment Procedures Table 5 3 TDS 224 Adjustment steps cont Step Equipment setup Signal source setting Input 31 Sinewave Generator 50 Ohm 5 kHz 1 Vp p CH1 32 Sinewave Generator 50 Ohm 1 2 1 Vp 33 Sinewave Generator 50 Ohm 50 kHz 1 Vp p 34 Sinewave Generator 50 Ohm 20 MHz 1 Vp p 35 Sinewave Generator 50 Ohm 100 MHz 1 Vp p 36 Sinewave Generator 50 Ohm 5 KHZ 2 5 Vo 37 Sinewave Generator 50 Ohm 1 MHZ 2 5 Vo 9 i a 8 50Ohm Slt 1Vpy 04 T i 46 Sinewave Generator 50 Ohm 20 MHz 1 Vp p 47 Sinewave Generator 50 Ohm 100 MHz 1 Vp p 48 Sinewave Generator 50 Ohm 5 kHz 2 5 Vp p i 0 5 8 00 T 5 6 5 58 Sinewave Generator 50 Ohm 5 kHz 2 5 Vp p 59 Sinewave Generator 50 Ohm 1 MHZ 2 5 Vp 60 Sinewave Gene
80. rator 50 Ohm 50 kHz 2 5 Vp p 61 Sinewave Generator 50 Ohm 20 MHZ 2 5 Vo 62 Sinewave Generator 50 Ohm 100 MHz 2 5 Vp p 63 Sinewave Generator 50 Ohm 77 133 MHZ 1 Vp p 64 Edge 50 Ohm 1 kHz 0 to 800 mV 5 8 TDS 200 Series Digital Oscilloscope Service Manual Adjustment Procedures Table 5 3 TDS 224 Adjustment steps cont Equipment setup Signal source setting Input Step 65 5 inewave Generator 50 Ohm 5 kHz 1Vp p CH4 66 inewave Generator 50 Ohm 1 MHz 1 Vpop 67 inewave Generator 50 Ohm 50 kHz 1 Vp p 68 inewave Generator 50 Ohm 20 MHz 1 Vp p 69 inewave Generator 50 Ohm 100 MHz 1 Vp p 70 inewave Generator 50 Ohm 5 KAZ 25 Vp 71 72 13 74 S S S S S S 5 inewave Generator 50 Ohm inewave Generator 50 Ohm 1 MHz 2 5 Vp inewave Generator 50 Ohm 50 kHz 2 5 Vp p Sinewave Generator 50 Ohm 20 MHz 2 5 Vp p 100 MHz 2 5 Vp p TDS 200 Series Digital Oscilloscope Service Manual Adjustment Procedures 5 10 TDS 200 Series Digital Oscilloscope Service Manual Maintenance This chapter contains the information needed to do periodic and corrective maintenance on the oscilloscope The following sections are included W Preparation refers you to important information contained elsewhere in this manual m Preventing ESD provides general information on preventing damage to internal modules when doing
81. rument Two conductor backlight cable Seven conductor ribbon cable H 3 A Power supply module gt lt Front case Line cord ground wire Figure 6 14 Installing the power supply module TDS 200 Series Digital Oscilloscope Service Manual Maintenance Front Panel Knobs Remove the front panel knobs by firmly grasping the knob with pliers if necessary and pull it away from the front panel Install front panel knobs by aligning the keyed knob with the shaft and pressing the knob onto the shaft NOTE Wrap the plier jaws with tape such as electrical to avoid marring the knob surface TDS 200 Series Digital Oscilloscope Service Manual 6 23 Maintenance Internal Assembly You will need a torque limiting Torx T 15 screwdriver and a flat blade screwdriver for this procedure Removal First remove the handle power button and rear case using the procedures on pages 6 12 6 13 and 6 14 Then use the following procedure to remove the internal assembly 1 Remove all the front panel knobs 2 Liftthe entire internal assembly housing all of the boards and the display screen out of the front case as shown in Figure 6 15 NOTE The switch keypad will most likely remain inside the front case It does not need to be removed with the internal assembly Internal assembly Conductive foam pad Front case Figure 6 15 Removing and installing
82. rument channel selected in the table to the DC voltage source DC voltage Digitizing oscilloscope source 008000800 Dual banana o to BNC adapter BNC cable 4 For each VOLTS DIV setting listed below perform the following steps a Setthe DC voltage source output level to the positive voltage listed and then record the mean measurement as V pos b Reverse the polarity of the DC voltage source and then record the mean measurement as c Calculate Vpos Vneg and then compare to the accuracy limits in the table VOLTS DIV setting DC voltage source output levels Accuracy limits for 5 mV div 17 5 mV 17 5 mV 33 3 mV to 36 7 mV 200 mV div 700 mV 700 mV 1 351V to 1 449 V 2 Vidiv 7 00 V 7 00 V 13 51V to 14 49 V 4 4 TDS 200 Series Digital Oscilloscope Service Manual Performance Verification Check Bandwidth 5 Set DC voltage source output level to 0 V 6 Disconnect the test setup 7 Repeat steps 1 through 6 until all input channels have been checked This test checks the bandwidth of all input channels 1 Set up the instrument using the following steps Press menu button Select menu item Select setting SAVE Recall RECALL Factory CH1 Probe 1X ACQUIRE Average 16 TRIGGER Coupling Noise Reject MEASURE Source An unchecked channel Type Pk Pk 2 As shown below connect the instrument channel se
83. rvice Manual 6 27 Maintenance Display Module 6 28 module ribbon Use the installation procedures for each module removed to reassemble the instrument Power supply ribbon cable Internal chassis Display cable Front panel cable 2 Board guides 0 board Figure 6 18 Main board installation You will need a torque limiting Torx T 15 screwdriver and a flat blade screwdriver for this procedure Removal First remove the handle power button and rear case using the procedures on pages 6 12 6 13 and 6 14 Then use the following procedure to remove the display module 1 Remove the entire internal assembly from the front case using the procedure on page 6 24 Disconnect the display module ribbon cable at J202 or J102 on the main board by pulling straight up from the connector Refer to Figure 6 17 Disconnect the backlight cable from the power supply module Refer to Figure 6 14 Slightly bend the two securing tabs on the left side of the display module and lift the left side up until it clears the tabs Then slide the display to the left until the right side tabs are disengaged Refer to Figure 6 19 TDS 200 Series Digital Oscilloscope Service Manual Maintenance CAUTION The display shield is attached to the display module Removing the shield will destroy the attaching gasket Internal chassis Backlight
84. system through the extension module port connector TDS 200 Series Digital Oscilloscope Service Manual Theory of Operation AC Line Front Panel GND Power Supply AC Line In Backlight Power gt 5 4 DC out amp Line e 1602 Trigger A1 Main GND Probe Comp Probe Comp GND V Signal lt 1605 131 DCIn gt 202 Backlight Display 190 ls LCD 51 Extension Module Figure 3 1 Module level block diagram two channel TDS 200 Series Digital Oscilloscope Service Manual gt Display Control ees Theory of Operation Power Supply AC Line AC Line In P3 Backlight Power gt 5 DC Out amp Line e GND ia 2 A1 Main 1 Front Panel 101 lt 1 GND Vv Jiaa P131 Display 90 J1 DC In gt gt J 5 e Backlight e lt J104 J102 12 Probe Comp LCD bs 5 Signal lt lt gt lt gt isplay Contro Probe Comp GND 1200 Extension Module T YE CH2 O e e e
85. t into the slots provided in the front case as shown in Figure 6 8 Use the installation procedures for each module removed to reassemble the instrument Front foot 2 AV Front case Figure 6 8 Removing and installing the front feet TDS 200 Series Digital Oscilloscope Service Manual Maintenance Clips You will need a torque limiting Torx T 15 screwdriver and a flat blade screwdriver for this procedure Removal First remove the handle power button and rear case using the procedures on pages 6 12 6 13 and 6 14 Then slide the four EMI clips out of the rear case as shown in Figure 6 9 NOTE The EMI clips can be pushed out from the rear of the case using a narrow flat blade screwdriver Installation Slide the four EMI clips into the slots provided in the rear case as shown in Figure 6 9 Use the installation procedures for each module removed to reassemble the instrument Figure 6 9 Removing and installing the EMI clips TDS 200 Series Digital Oscilloscope Service Manual 6 17 Maintenance Flip Stand 6 18 You will need a torque limiting Torx T 15 screwdriver and a flat blade screwdriver for this procedure Removal First remove the handle power button and rear case using the procedures on pages 6 12 6 13 and 6 14 Then use the following procedure to remove the flip stand 1 Place the rear case face down on a soft surface such as an anti sta
86. the internal assembly 6 24 TDS 200 Series Digital Oscilloscope Service Manual Maintenance Installation Use this procedure to install the internal assembly 1 Place the internal assembly into the front case as shown in Figure 6 15 2 Ifused place the copper mesh grounding tube between the main board module shield and the front case as shown in Figure 6 16 This part is not used on later instruments check the Mechanical Parts List for your serial number see page 10 8 3 Use the installation procedures for each module removed to reassemble the instrument Front case mesh tubing Figure 6 16 Installing the copper mesh grounding tube TDS 200 Series Digital Oscilloscope Service Manual 6 25 Maintenance 6 26 Main Board Module You will need a torque limiting Torx T 15 screwdriver and a flat blade screwdriver for this procedure Removal First remove the handle power button and rear case using the procedures on pages 6 12 6 13 and 6 14 Then use the following procedure to remove the main board module 1 Remove the entire internal assembly from the front case using the procedure on page 6 24 Disconnect the following wires on the main board Refer to Figure 6 17 a The line cord ground wire at J602 or J101 and the seven conductor ribbon cable at J131 from the power supply module b The ribbon cable at J603 or J103 from the front panel module The ribbon cable at J202 or J102 from the
87. tic mat 2 With the stand folded against the rear case in the up position push the stand out of the rear case channels as shown in Figure 6 10 Rear case Flip stand Figure 6 10 Removing the flip stand TDS 200 Series Digital Oscilloscope Service Manual Maintenance Installation Use this procedure to install the flip stand 1 Orient the flip stand to the rear case aligning the flip stand slots to the rear case tabs as shown in Figure 6 11 2 With the stand in the folded up position snap the stand into place 3 Use the installation procedures for each module removed to reassemble the instrument Rear case Flip stand Figure 6 11 Installing the flip stand TDS 200 Series Digital Oscilloscope Service Manual 6 19 Maintenance 6 20 Power Line Fuse You will need a torque limiting Torx T 15 screwdriver and a flat blade screwdriver for this procedure First remove the handle power button and rear case using the procedures on pages 6 12 6 13 and 6 14 to access the line fuse The line fuse is located on the power supply module as shown in Figure 6 12 If the fuse tests bad replace it with a fuse of the same type and rating Use the installation procedures for each module removed to reassemble the instrument Line fuse gt Front case Figure 6 12 Line fuse location TDS 200 Series Digital Oscilloscope Service Manual Maintenance Power Supply Module You
88. ty environment you should inspect and clean the interior To inspect and clean the interior disassemble the instrument by completing each of the disassembly procedures in the order given starting on page 6 12 Inspect the internal portions of the instrument for damage and wear using Table 6 1 as a guide Defects found should be repaired immediately Table 6 1 Internal inspection check list Item Inspect for Repair action Front and Back Cracks or deformations Repair or replace defective hardware Case Scratched lettering or display filter Loose connectors or labels Gasketand Foam Misplaced or missing pieces Relocate or replace defective pieces Pads TDS 200 Series Digital Oscilloscope Service Manual 6 3 Maintenance Table 6 1 Internal inspection check list cont Item Inspect for Repair action Circuit boards Loose broken or corroded Remove failed module and replace with a solder connections Burned new module circuit boards Burned broken or cracked circuit run plating Solder connections Cold solder or rosin joints Resolder joint and clean with isopropyl alcohol Wiring and cables Loose plugs or connectors Firmly seat connectors Repair or replace Burned broken or frayed modules with defective wires or cables wiring Cleaning Procedure Interior To clean the instrument interior perform the following steps 1 Blow off dust with dry low pressure deionized air appro
89. vervoltage Category Category Examples of Products in this Category CAT Ill Distribution level mains fixed installation CAT II Local level mains appliances portable equipment CAT Signal levels in special equipment or parts of equipment telecommunications electronics Adjustment interval The recommended adjustment interval is one year TDS 200 Series Digital Oscilloscope Service Manual 1 7 Specifications 1 8 TDS 200 Series Digital Oscilloscope Service Manual Operating Information TDS 200 Series Digital Oscilloscopes are two or four channel oscilloscopes in small lightweight benchtop packages that you can use to take ground referenced measurements In addition to the list of general features this chapter covers the following topics How to install your product How to add extended functions How to perform a brief functional check How to compensate probes How to use the self calibration routine How to match your probe attenuation factor For more detailed information about instrument operation refer to your user manual TDS 200 Series Digital Oscilloscope Service Manual 2 1 Operating Information General Features 100 MHz TDS 220 and TDS 224 or 60 MHz TDS 210 bandwidth with selectable 20 MHz bandwidth limit m 1 GS s sample rate and 2 500 point record length for each channel Cursors with readout m Five automated measurements m High resolution high contrast LCD display with t
90. wave 50 kHz and 100 MHz 0 6 Fluke 5500A Multi product Generator amplitude accuracy Calibrator with Oscilloscope Calibration Option Option 5500A SC 50 Q BNC Cable BNC male to BNC male Tektronix part number 012 0482 00 36 in 1 m long 50 Q BNC Cable two BNC male to BNC male Tektronix part number 012 0208 00 10 in 25 cm long 50 O Feedthrough BNC male and female Tektronix part number 011 0049 01 Termination connectors Dual Banana to BNC Banana plugs to BNC female Tektronix part number 103 0090 00 Adapter BNCT One male and two female Tektronix part number 103 0030 00 BNC connectors TDS 200 Series Digital Oscilloscope Service Manual 5 1 Adjustment Procedures Adjustment Procedure Enable the Service Menu The adjustment procedure consists of 55 steps Each step requires an external voltage source for new calibration constants Before performing the adjustment procedure you must warm up the instrument for at least ten minutes in an ambient temperature between 20 C and 30 C Adjustments performed prior to warm up or outside this temperature range may result in poor performance If all steps in the procedure are completed successfully a Pass message is displayed and the new calibration constants take affect If any step fails the procedure is aborted and the current calibration is not affected You can choose to abort the procedure at any step by selecting FCAL ABORT without affecting the current cali
91. will need a torque limiting Torx T 15 screwdriver and a flat blade screwdriver for this procedure Removal First remove the handle power button and rear case using the procedures on pages 6 12 6 13 and 6 14 Then use the following procedure to remove the power supply module Refer to Figure 6 13 1 Disconnect the following wires a The line cord ground wire on the main board at J602 or J101 b The seven conductor ribbon cable on the main board at J131 Thetwo conductor backlight cable on the power supply module 2 Slightly bend back the two securing tabs at the bottom of the power supply module and lift the module out of the inner chassis Two conductor backlight cable Seven conductor ribbon cable Front case Figure 6 13 Removing the power supply module TDS 200 Series Digital Oscilloscope Service Manual 6 21 Maintenance 6 22 Installation Use this procedure to install the power supply module Refer to Figure 6 14 1 Place the power supply module into the inner chassis placing the board under the three tabs at the top of the inner chassis 2 Snap the bottom of the module into place 3 Reconnect the following wires a The line cord ground wire on the main board at J602 or J101 b The seven conductor ribbon cable on the main board at J131 The two conductor backlight cable on the power supply module 4 Use the installation procedures for each module removed to reassemble the inst
92. ximately 9 psi 2 Remove any remaining dust with a lint free cloth dampened in isopropyl alcohol 75 solution and rinse with warm deionized water A cotton tipped applicator is useful for cleaning in narrow spaces and on circuit boards STOP If after performing steps 1 and 2 a module is clean upon inspection skip steps 3 and 4 Proceed with step 5 If steps 1 and 2 do not remove all the dust or dirt all modules in the instrument except the Display Module may be spray washed using a solution of 7596 isopropyl alcohol Proceed with step 3 3 Spray wash dirty parts with the 7596 isopropyl alcohol solution and wait 60 seconds for the majority of the alcohol to evaporate 4 Use hot 49 C to 60 C 120 F to 140 F deionized water to thoroughly rinse the parts 5 Dry all parts with low pressure deionized air 6 Dry all components and assemblies in an oven or drying compartment using low temperature 52 C to 66 C 125 F to 150 F circulating air Lubrication There is no periodic lubrication required for the oscilloscope 6 4 TDS 200 Series Digital Oscilloscope Service Manual Maintenance Removal and Installation Procedures Preparation AN This section describes how to remove and install the major mechanical and electrical modules It provides the following information Tools Required on page 6 6 describes the tools needed to perform the procedures m List of Modules on page 6 6 describes w

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