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Service Manual TLA 720 Benchtop Controller 071-0269-01

1. 2 1 2 2 2 3 2 6 2 6 2 6 2 7 4 1 4 2 4 5 4 5 4 6 4 6 4 6 4 7 4 10 4 11 4 13 4 13 4 14 Table of Contents CD ROM 5 255 tipp een 4 15 Processor Board and Interface Board 4 17 Floppy Disk e E mp et Boe 4 20 Soldered On ur 4 21 Fixed Hard Disk Drive 4 23 22222222250 ee A v ee aae d tes 4 23 Tools Required es es VEA Vd 4 24 Removing Replaceable Hard Disk Drive 4 24 Remove the Benchtop Controller Cover 4 26 Remove the Hard Drive Interface Board 4 27 Install the Fixed Hard Disk Drive 4 28 Install the Hard Drive Interface Board 4 29 Install the Benchtop Controller Cover 4 30 Verily Operation ns Be eek 4 31 Troubleshooting 4 33 Service Leyel i oec ee ee 4 33 Check for Common Problems 1 4 34 Eliminate Other Problem Sources 4 36 Troubleshoot the Benchtop Controller Module 4 36 Isolating System Problems ce eee 4 40 BIO
2. Front Panel Components Main MEMO esses REOS ses ba ds Sam PES Communications Ports Input Output Connectors Internal Components 2 2 2 22 222 2 2 4 sn Operating System and Application Interface Diagnostics u erie ted bined se YER Do et Controllers cae ls ae eines MassStorage asus ates Pr venting ESD lenius estan ete EUR E ne Inspection and Cleaning ee dade toes Removal and Installation Procedure Preparation ise VPE ERE T See gei rd Tools Required 5 5 9 mis Bann ana Y ue pon px Benchtop Controller Service Overview Replaceable Modules 22 2 ELE TRU EFT SEE Removing the Replaceable Hard Disk Drive Removing the Hard Disk Drive From The Cartridge Injector Ejector hse eed BS ee GSEs Benchtop Controller Cover a REPRE RI EFT Button Battery 225 ses sind when be ed Sores Ses Main Memory vov see ut shed Pa RT E TES Drive Interface Board u chins ees whee ERE hear TLA 720 Benchtop Controller Service Manual ix xi xi xii
3. 1 7 Table 2 1 USB pin assignments 2 3 Table 2 2 SVGA OUT assignments 2 4 Table 2 3 LPT parallel interface pin assignments 2 5 Table 4 1 External inspection check list 4 2 Table 4 2 Internal inspection checklist 4 3 Table 4 3 Tools required 4 6 Table 4 4 Signal wire identification 4 19 Table 4 5 Tools required 4 24 Table 4 6 Failure symptoms and possible causes 4 34 Table 4 7 TLA 700 Power on diagnostic tests 4 38 Table 4 8 Command line options ResMan32 4 41 Table 4 9 BIOS error codes and explanations 4 43 Table 4 10 Failure symptoms and possible causes 4 51 Table 4 11 Command line options for ResMan32 4 56 Table 5 1 Options 22 45255522 m ter ERR ERES VS RIPE 5 2 Table 7 1 Standard accessories 7 1 Table 7 2 Standard accessories 7 2 Table 7 3 Parts lists column descriptions 7 4 TLA 720 Benchtop Controller Service Manual Preface Manual Structure Manual Conventions Modules Benchtop Controller Benchtop Chassis Benchtop Mainframe Expansion Mainframe TLA 720 Benchtop Controller Service
4. 5 IEC320 RCPT AUSTRALIA SAFTEY DESCRIPTION CONTROLLED 161 0066 12 1 ASSY PWR 3 18 AWG 250V 10A 98 53109 ORDER BY INCH STR IEC320 RCPT X NEMA 6 15P US SAFTEY DESCRIPTION CONTROLLED 161 0154 00 1 ASSY PWR 3 1 0MM SQ 250V 10A 2 5 5F520 86515030 METER STR IEC320 RCPT SWISS SAFTEY CONTROLLED 119 6072 00 1 LAN PC CARD ETHERNET PCMCIA ADAPTER W CE MARK 02035 3 52 10 BASE T 119 5430 00 1 DISPLAY MONITOR 17INCH COLOR 30 86KHZ MULTI SYNC 80009 119 5430 00 0 27MM DOT PITCH FLAT CRT PWR SAVING SCREE 119 5798 00 1 DISPLAY MONITOR 21INCH COLOR MULTI SYNC MONITOR 80009 119 5422 00 30 95 KHZ 070 9776 XX 1 MANUAL TECH TECHNICAL REFERENCE TLA700 SERIES 80009 070 9776 00 PERFORMANCE VERIFICATION AND ADJ USTMENT 071 0269 XX 1 MANUAL TECH SERVICE TLA 720 BENCHTOP 80009 071 0269 00 CONTROLLER 071 0268 XX 1 MANUAL TECH SERVICE TLA 720 BENCH CHASSIS 80009 071 0268 071 0267 1 MANUAL TECH SERVICE TLA 714 PORTABLE MAINFRAME 80009 071 0267 071 0266 1 MANUAL TECH SERVICE TLA 7Nx and TLA 7 SERIES 80009 071 0268 LOGIC ANALYZER MODULE 070 9780 1 MANUAL TECH SERVICE TLA7D1 TLA7E1 DIGITIZING 80009 070 9780 OSCILLOSCOPE MODULE 071 0572 1 MANUAL TECH INSTRUCTION TLA MAINFRAME FIELD 80009 071 0572 UPGRADE KIT 7 10 TLA 720 Benchtop Controller Service Manual Index Index A Accessories optional 7 2 standard 7 1 Adjustment after repair
5. System battery is dead Re place and run SETUP System BIOS shadowed System cache error Cache disabled The CMOS clock may be dead ordiscon The system battery is internal to nected the RAM Calender component The CM t have t t PMOS Nae DE ese To replace the system battery replace the RAM Calender component Note After replacing the RAM Calendar component you must reflash the BIOS Refer to Update the BIOS and perform the procedures to reflash the BIOS The system BIOS was copied to shadow This is informational message RAM No action needs to be performed When the system BIOS failed the cache The system will run without cache testthe cache was disabled RAM but it will run slow Rebootthe system System CMOS checksum bad run SETUP TLA 720 Benchtop Controller Service Manual The system CMOS settings may be This is an information message incorrect or modified incorrectly by some application 05 setup may have to be redefined Rebootthe system first then verify that the CMOS setup is configured correctly 4 45 Troubleshooting Table 4 9 BIOS error codes and explanations cont Error code Error code explanation Action to be taken System RAM The system RAM atHEX address nnnn Exchange the SO DIMMs Failed at offset may be defective lf one ofthe SO DIMMS are defective the error address should change System timer The BIOS f
6. by the system but installed modules are not Power on the mainframe and expansion mainframe s The mainframe power must be recycled in order for the ResMan32 resource manager application to correctly configure Module address switches not set correctly Power off mainframe and remove module Set address switches to FF and reinstall module Power down all mainframes install a known good module from the benchtop mainframe into the expansion mainframe where the modules were not recognized Power up all mainframes and retry Module failure contact your local Tektronix service center TLA 720 Benchtop Controller Service Manual 4 53 Mainframe Troubleshooting Table 4 10 Failure symptoms and possible causes cont Symptom Portable Mainframe will not power off with On Standby switch Expansion Mainframe will not power off with On Standby switch Possible causes and recommended action The mainframe utilities may be set up to disable hard power off Check the setting of the mainframe utilities the mainframe utilities are located in the Windows 98 Control Panel This is a Windows operating system problem Try powering off the mainframe using the Windows 98 shutdown procedure If the mainframe still does not power off disconnect power cord and reconnect after 10 seconds to reboot the mainframe If the expansion mainframe was incorrectly shut down for example the power cord was disconnected while the expansi
7. 2 gt Figure 4 21 Installing the hard drive interface board TLA 720 Benchtop Controller Service Manual 4 29 Fixed Hard Disk Drive Replacement Install the Benchtop Controller Cover Installation install the cover follow these instructions Place the cover on the chassis 1 Push forward on the cover so the tab on the front edge of the cover inserts into the rear of the front subpanel Make sure that the cover is fully seated with no gaps against the front and rear chassis flanges Make sure tab inserts into slot on rear of front panel Leave no vertical gap Figure 4 22 Seating the cover on the chassis 2 Secure the left side cover with the screws removed from the top and bottom of the enclosure 4 30 TLA 720 Benchtop Controller Service Manual Fixed Hard Disk Drive Replacement 3 Squeeze the sides together before tightening to ensure a good seal and mechanical connection 4 Install the replaceable hard disk drive Verify Operation Follow the steps below to ensure proper operation of the instrument 1 Reinstall all software For help on software installation refer to the TLA 700 Series Logic Analyzer Installation Manual 2 Run memory and hard disk drive verification tests from the QA Win32 diagnostics NOTE To run OA Win32 you must have either a working keyboard or working mouse or other pointing device and Windows 98 running a Turn off all other applications b C
8. Component Group amp test Power Extended TLA 700 mainframe VTC Reset Test VTC Walk1 Test ADG Register Test ADG VXI Addr Test ADG VXI Data Test TLA 700 system Interrupt Lines Trigger Lines QA Win32 If the benchtop controller passes all of the BIOS tests the primary tree will have you run QA Win32 To run QA Win32 you must have either a working keyboard or a working mouse or other pointing device and have Windows running QA Win32 is comprehensive software application to check and verify the operation Repair or replace any failed component identified by QA Win32 TLA 700 mainframe diagnostics If the benchtop controller passes all the QA Win32 tests the primary tree calls for you to run the TLA 700 Mainframe Diagnostics The TLA 700 Mainframe Diagnostics are a comprehensive software test that checks benchtop chassis as well as benchtop controller functionality If the TLA 700 Mainframe Diagnostics test fails to run correctly the benchtop controller is defective To run the TLA Mainframe diagnostics do the following steps 1 Turn off all other applications Click on START in the tool bar Select Programs from the Start menu Select Tektronix TLA 700 from the Programs menu Select TLA 700 Mainframe Diagnostics from the Tektronix TLA 700 menu Refer to the help section in the TLA 700 Mainframe Diagnostics for more information on running the TLA 700 Mainframe Diagnostics
9. Option IF Option C3 Provides initial product installation configura tion and start up training session including front panel and product familiarization Provides installation of product upgrades performed at a Tektronix Service Center Provides factory calibration certification on delivery plus two more years of calibration coverage Throughout the coverage period the instrument will be calibrated according to its Recommended Calibration Interval Test data Test data Three years repair coverage Option 01 Option D3 Option R3 Provides initial Test Data Report from factory on delivery Provides test data on delivery plus a Test Data Report for every calibration performed during 3 years of coverage requires Option C3 Extends product repair warranty to a total of three years TLA 720 Benchtop Controller Service Manual 5 1 One year upgrade to on site Option 51 Upgrades the standard one year return to service depot warranty to an on site warranty Three year upgrade to on site Option 53 Upgrades any C3 D3 and R3 options service purchased to on site coverage for three years Availability of installation and on site services depends on the type of product and may vary by geography Upliftoptions are ordered with the mainframe products and cover individual modules Tektronix Service Options are available at the time you order your instrument C
10. Sa 9 Sos lt lt NN Figure 4 14 Unlatching the hard disk drive cartridge 4 24 TLA 720 Benchtop Controller Service Manual Fixed Hard Disk Drive Replacement Figure 4 16 Removing the hard disk drive cartridge TLA 720 Benchtop Controller Service Manual 4 25 Fixed Hard Disk Drive Replacement Remove the Benchtop Controller Cover Remove the cover to gain access internal modules and memory Removal Remove the screws shown in Figure 4 17 and lift the cover off Module cover Remove screws 8 Chassis Figure 4 17 Removal and installation of the cover 4 26 TLA 720 Benchtop Controller Service Manual Fixed Hard Disk Drive Replacement Remove the Hard Drive Interface Board Removal To remove the hard drive interface board refer to Figure 4 17 and follow these instructions 1 2 screws 4 Remove the cover Disconnect the two ribbon cables located on the rear of the hard disk interface board Remove the screws as shown in Figure 4 18 Remove the hard drive interface board Remove lt lt Wt SS gt P Figure 4 18 Removing the hard drive interface board TLA 720 Benchtop Controller Service Manual 4 27 Fixed Hard Disk Drive Replacement Install the Fixed Hard Disk Drive 4 28 1 Carefully align the connector pins on the back of the hard disk drive to the socket on the hard drive interface board
11. TLA 720 Benchtop Controller Service Manual Troubleshooting Windows Consultthe troubleshooting Boots section of your Microsoft Windows manual With mainframe powered off insert benchtop controller into 5100 and 1 Turn on power Run QA 4Win32 See page 4 38 for instructions Possible cause 1 Verify monitor power cord is plugged in 2 Failed fuse 3 Defective monitor Monitor powers on Passes all Repair replace failed part tests identified by QA4Win32 Possible cause 1 DIMMs incorrectly installed or missing 2 Defective controller board Beeps Possible cause 1 Monitor cable detective or not connected to mainframe 2 External monitor controls turned down Monitor 3 Defective monitor display is blank Controller appears dead dead screen Run TLA700 mainframe diagnostics see page 4 38 for instructions Passes all Controller board tests defective If the TLA 700 Application is not already running start it from the y No START menu See BIOS error an code table 4 9 on 4 43 TLA Application starts Reinstall TLA software see Installation manual Yes Figure 4 23 Primary troubleshooting tree TLA 720 Benchtop Controller Service Manual 4 39 Troubleshooting Isolating System Problems If you have completed all of the troubleshooting procedures up to this point and the TLA 700 application fail
12. tion Refer to Appendix A of the TLA 700 Series Logic Analyzer User Manual for a complete listing of all specifications Table 1 1 lists the characteristics of the TLA 720 Color Benchtop Controller Table 1 1 Benchtop controller characteristics Characteristic Operating System Microprocessor Main Memory Maximum Installed Configuration Description Microsoft Windows 98 266 MHz Intel Pentium with MMX 128 MB Two 64 MB SO DIMMs Style 144 PinSO DIMM Speed 60 ns Cache Memory 512 Kbyte level 2 L2 write back cache Flash BIOS 512 Kbyte Real Time Clock and CMOS Setups NVRAM Real Time clock calendar with typical 10 year life Typical Standard and advanced PC CMOS setups TLA 720 Benchtop Controller Service Manual 1 1 Specifications Table 1 1 Benchtop controller characteristics cont Characteristic Bootable Replaceable Hard Disk Drive Description Standard PC compatible IDE Integrated device Electronics hard disk drive residing on an EIDE interface Size Interface Average seek time 1 0 data transfer rate MIN 2 1 GByte MAX 6 4 GByte Continually subjectto change due to the fast moving PC component environment These storage capacities valid at product introduction ATA 4 Enhanced IDE EIDE Read 13 ms 33 3 MB s max U DMA mode 2 Floppy Disk Drive CD ROM Drive Display Classification Standard 3 5 inch 1 44 Mbyte double sided P C compatible high density flopp
13. 4 46 Application interface 2 6 Atmospheric characteristics 1 6 Backplane interface characteristics 1 5 Battery replacement 4 13 Benchtop chassis block diagram 6 1 Benchtop controller block diagram 6 1 Benchtop controller cover installation 4 12 removal 4 11 Benchtop controller diagnostics 4 37 BIOS error message table 4 43 Block diagram benchtop chassis 6 1 benchtop controller 6 1 Button battery replacement 4 13 CD drive 3 1 installation 4 16 removal 4 15 Certifications and compliances 1 7 Characteristics tables 1 1 Cleaning 4 2 exterior 4 3 interior 4 4 COM port description 2 4 assignments 2 4 Communications ports keyboard port 2 3 mouse port 2 3 PC 2 4 USB 2 3 Contacting Tektronix vi Controller 3 1 Cover installation 4 12 removal 4 11 TLA 720 Benchtop Controller Service Manual D Diagnostics 2 7 expansion mainframe 4 49 extended 4 49 mainframe 4 49 modules 4 49 power on 4 49 QA Win32 4 50 start up sequence 4 46 4 54 start up sequence tree 4 47 4 55 Documentation manual conventions v manual structure v Dynamic characteristics 1 6 E Email Service vi Tektronix vi characteristics 1 5 Equipment required to service 4 6 ESD preventing 4 1 Expansion mainframe diagnostics 4 49 troubleshooting 4 59 Exterior inspection 4 2 External signal characteristics 1 3 F Fault isolation procedure 4 37 Fix
14. Index Tektronix Serial No Serial No Number Number Effective Discont d 2 0 039 0048 00 7 211 1070 00 8 119 5728 00 9 671 4377 00 10 11 131 6711 00 12 156 8389 00 13 146 0132 00 14 119 5677 00 15 174 4195 00 16 119 6071 00 17 174 3925 00 18 671 4378 00 19 437 0479 00 650 4016 00 119 4330 02 119 5193 00 159 0379 00 159 0381 00 071 0264 XX 071 0265 XX TLA 720 Benchtop Controller Service Manual Qty Name and Description CONTROLLER THREE WIDE VXI CONTROLLER MODULE SCREW M2 X 2MM PNH PHL STL NI PLT DISK DRIVE OPTICAL 644MB CD ROM 16 7 MB SEC IDE ATAPI CD 224E 903 CIRCUIT BD ASSY CD ROM INTERFACE 389 2561 00 WIRED CONN PLUG DEVICE BAY SMD PLUG RTANG 44 POS 0 05 CTR 0 197 H 30 GOLD PLZ SHRD 4 SIDES IC MEMORY CMOS SDRAM 8MEG X 64 64M SYNCHRONO US 100MHZ 7NS MODULE MC 458CD6 4S A10B SODIMM14 BATTERY BUTTON FLOPPY DISK DRIVE 3 5 INCH 1 44 CABLE ASSY COAXIAL CABLE PELTOLA SMB SET OF FOUR DISK DRIVE WINCHESTER 2 5 IN 6 4G B 9 5 MM IDE MHE2064AT CA ASSY SP RIBBON CD ROM AUDIO CABLE IDC 44 28 AWG 1MM 1 0 L 2 X 22 0 079 CTR 2MM CIRCUIT BD ASSY HARD DISK DRIVE 679 4378 00 TESTED 389 2562 00 WIRED CABINET ASSY REMOVEABLE HARD DISK DRIVE HOLDER DOES NOT INCLUDE HARD DISK DRIVE RHDD ASSEMBLY MAX REPLACEABLE HARD DISK DRIVE ASSEMBLY WITH S W INSTALLED SCREW MACHINE 4 40 X 0 250 PHILLIPS PNH T
15. Injector Ejector handle 4 10 interface board 4 17 isolating system problems 4 40 4 56 mainframe diagnostics 4 49 memory SO DIMM 4 13 offerings overview 4 6 processor board 4 17 repair service xii Index 3 Index returning for service 4 61 safety summary ix self service xii soldered on connectors 4 21 strategy for servicing xi tools required 4 6 troubleshooting 4 33 troubleshooting tree 4 39 warranty repair service xii Service safety summary ix Shipping instructions 4 61 SO DIMM installation 4 13 removal 4 13 SO DIMM memory 2 2 Software diagnostics 4 49 expansion mainframe diagnostics 4 49 extended diagnostics 4 49 mainframe diagnostics 4 49 power on diagnostics 4 49 problems 4 50 Soldered on connectors installation 4 21 removal 4 21 Specifications 1 1 atmospheric 1 6 backplane interface 1 5 characteristics tables 1 1 dynamic 1 6 1 5 external signal interface 1 3 mechanical 1 3 Standard accessories 7 1 Startup sequence TLA 700 4 46 4 54 Static discharge preventing 4 1 SVGA port description 2 4 pin assignments 2 4 System expansion mainframe troubleshooting 4 59 Index 4 isolating problems 4 40 4 56 T Tektronix how to contact vi mail address vi telephone number vi World Wide Web address vi Terms and symbols safety viii TLA 700 startup sequence 4 46 4 54 TLA 714 mainframe removing the ha
16. Remove the hard drive Figure 4 9 Removing the hard drive interface board The CD ROM drive is located on the hard drive interface board Follow these instructions to remove the CD ROM drive 1 Remove the replaceable hard disk drive and set it aside 2 Remove the cover by following the instructions on page 4 11 3 Using a 0 Phillips head screwdriver with a 6 inch long shaft remove the two screws on the side of the CD ROM bracket by reaching through one of the holes on the bottom side of the benchtop controller 4 Remove the two screws on the other side of the CD ROM bracket by reaching through one of the holes on the top side of the benchtop controller 5 Remove the ribbon cable from the CD ROM drive TLA 720 Benchtop Controller Service Manual 4 15 Removal and Installation Procedure Figure 4 10 Remove screws from the CD ROM bracket 6 Remove the CD ROM drive Installation install the CD ROM follow these instructions 1 Attach the bracket to the CD ROM drive with the four screws you saved from the removal instructions 2 Connect the CD ROM drive ribbon cable to the CD ROM drive Verify that pin 1 of the cable is connected to pin 1 of the connector 3 Using the screws saved from the removal process secure the CD ROM drive to the circuit board Replace the cover following the instructions on page 4 12 Install the hard disk drive Install the controller into t
17. TLA 7XM expansion chassis with a TLA 7XM expansion module installed Preface Replaceable Parts This manual refers to any field replaceable assembly or mechanical part specifically by its name or generically as a replaceable part In general a field replaceable part is any assembly that is listed in the replaceable parts list of Chapter 10 Also see Strategy for Servicing on page xi Safety Symbols and terms related to safety appear in the General Safety Summary found at the beginning of this manual Contacting Tektronix Product Support Service Support For other information To write us Website vi For questions about using Tektronix measurement products call toll free in North America 1 800 TEK WIDE 1 800 835 9433 ext 2400 6 00 a m 5 00 p m Pacific time Or contact us by e mail tm_app_supp tek com For product support outside of North America contact your local Tektronix distributor or sales office Tektronix offers extended warranty and calibration programs as options on many products Contact your local Tektronix distributor or sales office For a listing of worldwide service centers visit our web site In North America 1 800 TEK WIDE 1 800 835 9433 An operator will direct your call Tektronix Inc 14200 SW Karl Braun Drive Beaverton OR 97077 USA Tektronix com TLA 720 Benchtop Controller Service Manual EEUU AGENS General Safety Summary Review the following safet
18. benchtop mainframe Input Destination Signal 1 2 3 4 Input Levels TTL compatible input Vin gt 2 0 Vi lt 0 8V Input Mode Active true low level sensitive Input Bandwidth Signal 1 2 50 MHz square wave minimum Signal 3 4 10 MHz square wave minimum Active Period Accepts signals during valid acquisition periods via real time gating Maximum Input Voltage 0 to 5 Volt peak System Trigger Output Source Mode Active Period Output Levels VoH VoL Output P rotection Intermodule Signal Line Bandwidth External Signal Output Source Selection Output Modes Level Sensitive TTL compatible output via rear panel mounted BNC connectors portable mainframe or front panel mounted S MB connectors benchtop mainframe Active true low falling edge latched Outputs system trigger state during valid acquisition period resets system trigger output to false state between valid acquisitions 50 Ohm back terminated TTL compatible output 24 V into open circuit 22V into 50 Ohm to ground gt 0 7 V sinking 10 ma Short circuit protected to ground Minimum bandwidth up to which the intermodule signals are specified to operate correctly Signal 1 2 ECLTRG0 1 50 MHz square wave minimum Signal 3 4 1 10 MHz square wave minimum TTL compatible outputs via rear panel mounted BNC connectors portable mainframe or front panel mounted SMB connectors benchtop mainframe Signal
19. 2 2 TLA 720 Benchtop Controller Service Manual Operating Information Communications Ports USB Port Mouse Port Keyboard Port Replaceable Hard Disk Drive Fixed Hard Disk Drive Floppy Disk Drive CD ROM There are two USB universal serial bus ports The USB ports can be used for any USB complaint device Table 2 1 USB pin assignments Pin number Pin function Pin number Pin function Al Vcc Bl Vcc A2 A DATA B2 B DATA A3 A DATA B3 B DATA A4 GND B4 GND The benchtop controller supports an external pointing device The mouse connector is a standard six pin PS 2 compliant DIN connector The mouse port can be connected to an external standard PS 2 compliant three button mouse The benchtop controller has an external keyboard port The keyboard connector is a Standard six pin PS 2 compliant DIN connector The keyboard port can be connected to an external standard PS 2 compliant keyboard There is one replaceable hard drive Because of the speed at which the PC industry evolves the hard disk drive size is subject to change This service manual lists the size of the hard disk drive available at the time the product was introduced Consult your Tektronix Sales Representative for the maximum hard disk drive available It is possible to add a fixed hard disk drive to the TLA 714 mainframe which is available through the TLA 7UP mainframe upgrade kit Contact your Tektronix representative for m
20. Benchtop Controller Service Manual Removal and Installation Procedure Soldered On Connectors person is skilled in the servicing of through hole and surface mount technology i CAUTION Removing soldered on components requires that a qualified service on printed circuit boards Self servicing may impact the warranty Check with your Tektronix Service Center before servicing Every reasonable precaution shall be made by the service person to eliminate damage to the circuit board Removal and Installation 5 14 connectors are located internally on the boards You will need to remove the board from the enclosure in order to replace a connector TLA 720 Benchtop Controller Service Manual 4 21 Removal and Installation Procedure 4 22 TLA 720 Benchtop Controller Service Manual Fixed Hard Disk Drive Replacement This section contains information needed to replace the optionally field installed fixed hard disk drive For additional information refer to the TLA 7UP Mainframe Field Upgrade Kit Instruction Manual Preparation Be sure to observe the following precautions to avoid damaging the benchtop controller while preparing to service it CAUTION Many components within the benchtop controller are susceptible to static discharge damage Service only in a static free environment Observe standard handling precautions for static sensitive devices Always wear a grounded wrist strap
21. Secure the left side cover with the screws removed from the top and bottom of the enclosure Squeeze the sides together before tightening to ensure a good EMI seal and mechanical connection TLA 720 Benchtop Controller Service Manual Removal and Installation Procedure Button Battery button battery is located on the processor board To replace the button battery slip the battery out of the clip Main Memory Removal The main memory SO DIMMs are located on the processor board To access the memory SO DIMMs follow these instructions 1 Remove the cover following the instructions on page 4 11 2 Remove the SO DIMM by depressing the tabs on each side and lift it out of the socket Memory SO DIMM NVRAM button battery Processor board shown alone for clarity Figure 4 8 Removal and installation of the memory Installation replace or add memory follow these instructions CAUTION SO DIMM modules must have gold plated contacts Use of SO DIMM modules that do not have gold plated contacts will result in eventual failure of the SO DIMM module Always use SO DIMM modules with gold plated contacts 1 Populate SO DIMM 0 first TLA 720 Benchtop Controller Service Manual 4 13 Removal and Installation Procedure 2 Align the memory SO DIMM with the socket 3 Gently push the SO DIMM into of the socket The locking tabs on each side will engage 4 Replace the cover following the
22. above tasks the logic analyzer starts the TLA 700 application which performs the following tasks m Power on diagnostics on all installed modules m Power on diagnostics on the TLA 700 system m Records the Pass Fail status in the Calibration and Diagnostics property sheet If no failures occur the TLA 700 application is ready to use for regular tasks Mainframe kernel test Module 1 Module 2 Module 3 Module i kernel test kernel test kernel test kernel test Pass Fail Pass Fail Pass Fail Pass Fail a E Terminate and Fail display error Verify kernel self test status code Inhibit failed modules E Pas Log failures and build configuration 5 MS Windows 98 boot Start TLA 700 application lt lt Start resource manager Module power on diagnostics SEM TLA 700 system power on diagnostics Records failures in Calibration and Diagnostic property sheet TLA 700 ready Figure 4 25 TLA 700 startup sequence TLA 720 Benchtop Controller Service Manual 4 47 Troubleshooting 4 48 TLA 720 Benchtop Controller Service Manual EU AUS Mainframe Troubleshooting Diagnostics This chapter provides information that addresses problems you may encounter while installing the logic analyzer This chapter does not identify module specific problems relating to performance verification or adjustments The following diagnostic tools are available with your logic analyzer Power On Diagnost
23. chapter Isolate problem to faulty mainframe or to faulty module Multiple diagnostic failures across modules indicate a faulty mainframe Diagnostic failures confined to an single module most likely indicate a faulty module Contact your local Tektronix service center Check that accessories are properly connected or installed Try connecting other standard PC accessories or contact your local Tektronix service center Merge cable between LA modules not installed LA modules are not compatible TLA 7Nx and TLA 7Px LA modules may not be merged with TLA 7Lx and TLA 7Mx LA modules Refer to the Merge Rules Windows 98 comes up but the TLA 700 application does not Mainframe not set up to start TLA 700 application at power on Start application from the desktop by double clicking on the TLA 700 Final Setup icon located on the desktop Faulty or corrupt software reinstall the TLA 700 application software Windows 98 comes up in Safe mode Exitthe Safe mode and restart the mainframe Incompatible hardware and hardware driver software Either install hardware driver or remove the incompatible hardware 4 52 TLA 720 Benchtop Controller Service Manual Mainframe Troubleshooting Table 4 10 Failure symptoms and possible causes cont Symptom Possible causes and recommended action TLA 700 application starts but Module firmware has not been updated reflashed t display i t u The flash jumper was not
24. slot zero and one Apply power and re test The controller board may be defective Replace the benchtop controller This is a information message Press the lt F1 gt key to restart the boot process or press the lt 2 gt key to enter the CMOS setup and make changes to the definitions Verify that the CMOS setup is configured correctly TLA 720 Benchtop Controller Service Manual Troubleshooting Table 4 9 BIOS error codes and explanations cont Error code Press lt F2 gt to enter SETUP Previous boot incomplete Default configu ration used Error code explanation Action to be taken This is an optional message that can be This is a information message turned on and off in CMOS setup Itis only displayed during a POST test The previous POST test was not success This is an information message ful If the POST test fails POST willload Verify thatthe CMOS setup is default values then display a message 0 configured correctly run the CMOS setup incorrect values are loaded future boot attempts may fail Real time clock error Shadow Ram Failed at offset nnnn The real time clock may be defective The controller board may be defective Replace the benchtop controller The shadow RAM has failed at Hex The system will run without location nnnn shadow RAM but it will run slow Exchange the SO DIMMs if one of the SO DIMMs are defective the error address should change
25. system Another way to isolate problems would be to trick the expansion mainframe into thinking it was a benchtop mainframe You can do this by removing the expansion module from the slot zero position in the expansion mainframe and replacing it with a known good benchtop controller module from your benchtop mainframe Because the expansion mainframe is set up to power on from a signal from the expansion module which is no longer present you will have to press and hold the power switch on the expansion mainframe for three to four seconds If the expansion mainframe powers on correctly the problem can be isolated to either the expansion module s or the expansion cable s TLA 720 Benchtop Controller Service Manual iy N Repackaging Instructions This section contains the information needed to repackage the benchtop controller for shipment or storage Packaging When repacking the benchtop controller for shipment use the original packaging If the packaging is unavailable or unfit for use contact your local Tektronix representative to obtain new packaging Seal the shipping carton with an industrial stapler or strapping tape Shipping to the Service Center Contact the Service Center to get an RMA return material authorization number and any return or shipping information you may need If the instrument is being shipped to a Tektronix Service Center enclose the following information m The RMA number m The
26. the CD ROM drive Benchtop chassis power supply failure refer to the TLA 720 Benchtop Chassis Service Manual for troubleshooting procedures Corrupted controller BIOS module firmware reinstall firmware Refer to Upgrading Module Firmware in the TLA 714 and TLA 720 Installation Manual Controller BIOS setup problem See BIOS Settings Replaceable hard disk drive not installed Replaceable hard disk drive or optionally field installed fixed hard disk drive not configured as bootable slave master hard disk drive Faulty hard disk drive Faulty benchtop controller CD ROM related symptoms Module s not recognized 4 34 Defective CD ROM Defective CD ROM drive cable Defective CD ROM board IncorrectCD ROM configuration in the BIOS setup Refer to the appropriate module s service manual TLA 720 Benchtop Controller Service Manual Troubleshooting Table 4 6 Failure symptoms and possible causes cont Symptom SYSTEM FAIL indicator is red Possible cause s Benchtop controller may not be not fully inserted make sure the front of the benchtop controller is flush with front panel P ower off the benchtop chassis and reseat the benchtop controller Follow the troubleshooting procedure and primary troubleshooting tree Benchtop chassis or benchtop controller failure refer to the troubleshooting procedure in this manual for the benchtop controller refer to the TLA 720 Benchtop Chassis Service M
27. 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 m Part number see Part Number Revision Level below Instrument type or model number 7 2 TLA 720 Benchtop Controller Service Manual Replaceable Mechanical Parts Instrument serial number m 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 Part Number Revision Tektronix part numbers contain two digits representing the revision level of the Level part For most parts in this manual you will find the letters XX in place of the revision level number Part Number Revision Level Revision Level May Show as XX m os 670 7918 03 670 7918 XX When you order parts Tektronix will provide you with the most current part for your product type serial number and modification if applicable At the time of your order Tektronix will determine the part number revision level needed for your product based on the information you provide Module Servicing Modules can be serviced by selecting one of the following options Contact your local Tektronix service center or representative for repair assistance Module Repair a
28. 00 application which performs the following tasks m Power on diagnostics on all installed modules TLA 720 Benchtop Controller Service Manual Mainframe Troubleshooting m Power on diagnostics on the TLA 700 system m Records the Pass Fail status in the Calibration and Diagnostics property sheet If no failures occur the application is ready to use for regular tasks Y Mainframe kernel test Module 1 Module 2 Module 3 1 Module n 1 kernel test kernel test kernel test kernel test Pass Fail Pass Fail Pass Fail Pass Fail nn Terminate and display error Verify kernel self test status code Inhibit failed modules Log failures and build configuration MS Windows 98 boot Start resource manager Start TLA 700 application Module power on diagnostics en er TLA 700 system power on diagnostics Records failures in Calibration and Diagnostic property sheet Figure 4 26 TLA 700 startup sequence TLA 720 Benchtop Controller Service Manual 4 55 Mainframe Troubleshooting Isolating System Problems 4 56 If you have completed all of the troubleshooting procedures up to this point and the TLA application fails to display any modules in the System Window you may have a system problem Check for the following m Verify that all modules are properly installed m Verify that the module address switches set correctly Power off the mainframe and
29. 1 2 3 4 or 10 MHz clock User definable Active true low or active true high Output Levels 50 Ohm back terminated TTL output Vou 24V into open circuit 22V into 50 Ohm to ground VoL lt 0 7 V sinking 10 ma Output Bandwidth Signal 1 2 50 MHz square wave minimum Signal 3 4 10 MHz square wave minimum 14 TLA 720 Benchtop Controller Service Manual Specifications Table 1 3 Benchtop mainframes external signal interface characteristics cont Characteristic Description Active Period Outputs signals during valid acquisition periods resets signals to false state between valid acquisitions Outputs 10 MHz clock continuously Output Protection Short circuit protected to ground 1 The input bandwidth only applies to signals to the modules not round trip signals into the external signal Input and back out the external signal outputs 2 The output bandwidth only applies to signals from the modules not round trip signals out the external signal output and back into the external signal inputs Table 1 4 lists the backplane interface characteristics for the benchtop mainframe Table 1 4 Benchtop mainframes backplane interface characteristics Characteristic Description Slots Benchtop mainframe 13 CLK10 Frequency 10 MHz 100 PPM Table 1 5 lists the electromagnetic compatibility EMC characteristics Table 1 5 Electromagnetic compatibility EMC characteristics Characteristic Description Emissi
30. 3 TELEGRAPH RD 19 BALTIMORE ST INDUSTRIAL TAPE DIVISION PO BOX 115 ONE MICROSOFT WAY 6790 FLANDERS DR NIHON KAIHEIKA IND CO LTD 7850 E GELDING DRIVE DIVISION COOPER INDUSTRIES INC 800 E NORTHWEST HWY 11013 A NE 39TH 14150 SW KARL BRAUN DR 747 WEST REDONDO BEACH 5858 WILLOW LANE 72 VERONICA AVE 16748 SW 72ND AVE 3000 LEWIS amp CLARK HWY 2682 W COYLE AVE TLA 720 Benchtop Controller Service Manual City State Zip Code TINLEY PARK IL 60477 3048 WESTFIELD PA 16950 HILLSBORO OR 97124 6474 HILLSBORO OR 97124 SANTA ANNA CA 92704 SANTA CLARA CA 95052 8145 EDEN PRAIRIE MN 55344 FRANKLIN IN 46131 CHICAGO IL 60656 4548 RICHMOND IN 47374 NEWPORT RI 02840 MONTEBELLO CA 90640 6537 NUTLEY NJ 07110 1303 ST PAUL MN 55144 1000 OSKALOOSA IA 52577 0115 REDMOND WA 98052 8300 SAN DIEGO CA 92121 SCOTTSDALE AZ 85260 ST LOUIS MO 63178 DES PLAINES IL 60016 3049 VANCOUVER WA 98662 BEAVERTON OR 97077 0001 GARDENA CA 90247 4203 LAKE OSWEGO OR 97035 SOMERSET 08873 PORTLAND OR 97224 VANCOUVER WA 98661 ELK GROVE VILLAGE IL 60007 7 5 Replaceable Mechanical Parts The replaceable parts listing contains replaceable parts and accessories for the benchtop controller as well as the benchtop mainframe Replaceable Parts List Figure 7 1 Benchtop controller exploded view TLA 720 Benchtop Controller Service Manual 7 6 Replaceable Mechanical Parts Replaceable par
31. 7 P25 P26 P27 P28 0 2 1P2 2P2 3P2 4 2 5 2 6 2 7 2 8 2 9 2 10 2 11 2 12 2 2 Temperature Sense Board On Standby Slot Slot Slot Slot Slot Slot Slot Slot Slot Slot Slot10 Slot11 Slot12 Switch 0 2 1516 7 8 9 Figure 6 2 Benchtop chassis block diagram 6 2 TLA 720 Benchtop Controller Service Manual Replaceable Mechanical Parts N Replaceable Mechanical Parts This chapter contains a list of standard accessories optional accessories and replaceable parts After the benchtop controller is mated to the benchtop chassis the resulting combination is the benchtop mainframe The standard accessories and the optional accessories listed in this section are for the benchtop mainframe Standard Accessories Table 7 1 lists the standard accessories shipped with the benchtop mainframe Table 7 1 Standard accessories Accessory Part number Windows keyboard PS2 mini DIN 119 5662 00 Mouse 3 button PS2 mini DIN 119 5662 02 Dual wide slot fillers 333 4206 00 SMB to BNC cable 2 P6041 Female to female BNC 103 0028 00 used to join 2 P6041 cables for diagnostics Printer adapter cable 015 0687 00 Windows 98 package software and manual 063 3135 00 TLA 700 application software 063 3022 TLA TPI client software Diagnostics software Windows 98 preinstall internal external CDROM 063 3227 boot dis
32. EK MOUSE 3 BUTTON PS2 MINI DIN KEYBOARD ASSY WINDOWS 95 SOLUTION KEYBOARD WITH 4 PIN MINI DIN CONNECTOR FUSE CARTRIDGE 20A 250V 5 SEC MIN 200 0 25 X 1 25 UL REC 326020 FUSE CARTRIDGE 5 X 20 MM 6 3A 250V FAST BLOW HIGH BREAKING CAPACITY UL REC SEMKO MANUAL TECH TLA 700 SERIES LOGIC ANALYZER INSTALLATION MANUAL MANUAL TECH USER TLA 700 SERIES LOGIC ANALYZER Mfr Code 01017 0 01 50356 80009 22526 55769 06009 04956 06009 80009 1943 80009 80009 80009 15915 71400 80009 80009 Mfr Part Number 039 0048 00 211 1070 00 0 224 903 671 4377 00 62368 001 458 0645 10 44 0162 01 MHE2064AT 174 3925 00 671 4378 00 437 0479 00 650 4016 00 ORDER BY DESCRIPTION 119 5193 00 326 020 GDA 6 3 071 0264 070 9775 XX 7 9 Replaceable Mechanical Parts Replaceable parts list cont Fig amp A Tektronix Serial No Serial No Mfr Mfr Part Number Part Number Effective Discontd Qty and Description Code Number OPTIONAL ACCESSORIES 161 0066 09 1 CA ASSY PWR 3 0 75MM SQ 250V 10A 99 2W733 ORDER BY INCH STR IEC320 RCPT EUROPEAN SAFTEY CONTROLLED DESCRIPTION 161 0066 10 1 CA ASSY PWR 3 1 0 SQ 250V 10A 2 5 TK2541 ORDER BY METER STR IEC320 RCPT X 13A FUSED UK PLUG 13A DESCRIPTION FUSE UNI 161 0066 11 1 ASSY PWR 3 1 0MM Q 250V 10A 2 5 80126 ORDER BY
33. Gently slide the hard disk drive into the socket Verify that all of the pins are fully engaged and that no pins are bent 2 Install the four screws to secure the hard disk drive to the hard drive interface board as shown in Figure 4 20 1 Hard drive brackets Figure 4 20 Installing the fixed hard disk drive 3 Connect the controller board to the hard drive interface board by aligning the two connectors between the controller board and the adapter board TLA 720 Benchtop Controller Service Manual Fixed Hard Disk Drive Replacement Locate the center standoff and center it on the hole on the controller board Carefully apply pressure to both boards until the two connectors engage 4 Connect the two ribbon cables to the component side of the controller board Note the location of the ribbon cables from the disassembly procedure step 1 5 Install the screws to secure the controller board to the adapter board Install the Hard Drive Interface Board Installation install the hard drive interface board follow these instructions 1 Place the hard drive interface board as shown in Figure 4 21 2 Install the screws 3 Connect the two ribbon cables located on the rear of the hard disk interface board 4 Replace the cover following the instructions on page 4 12 Install screws 4 Qj
34. LA 700 Series extended diagnostics located under the System menu to identify any problems with the individual modules If your logic analyzer powers up so that you have access to the desktop run the QA Win32 diagnostics software to identify possible controller hardware problems Follow the QA Win32 online help instructions for running the diagnostics software The diagnostics are located in the Start menu under Programs QA Win32 You can also run the external TLA 700 Mainframe diagnostics to identify problems not covered by other diagnostics The TLA 700 Mainframe diagnostics are located under the Start menu under the Tektronix TLA 700 programs TLA 720 Benchtop Controller Service Manual Mainframe Troubleshooting Check for Common Problems A Use Table 4 10 to quickly isolate possible failures This list is not exhaustive but it may help you eliminate a problem that are quick to fix such as a blown fuse loose cable or defective module CAUTION Do not install or remove any modules while the mainframe is powered on The modules are not hot swapable Installing or removing modules when the mainframe is powered on can damage the modules and the mainframes Always power the mainframe off before attempting to install or remove modules Table 4 10 Failure symptoms and possible causes Symptom Mainframe does not power on Possible causes and recommended action Verify that all power cords are connected to the mainfra
35. Manual This is the service manual for the TLA 720 Benchtop Controller Read this preface to learn how this manual is structured what conventions it uses and where you can find other information related servicing this product Read the Introduction which follows this preface for safety and other important background information needed before using this manual for servicing this product This manual is divided into chapters which are made up of related subordinate topics These topics can be cross referenced as sections Be sure to read the introductions to all procedures These introductions provide important information needed to do the service correctly safely and efficiently This manual uses certain conventions that you should become familiar with before attempting service Throughout this manual the term module refers to TLA 700 Series Logic Analyzer DSO or Benchtop Controller that mounts inside a TLA 700 Series Benchtop Chassis A module is composed of circuit cards replaceable parts interconnecting cables and a user accessible front panel A benchtop controller is a TLA 711 or TLA 720 Color Benchtop Controller The benchtop controller is a module that is installed in the benchtop chassis A benchtop chassis is a TLA 711 or TLA 720 Color Benchtop Chassis that the benchtop controller module plugs into A benchtop mainframe is a benchtop chassis with a benchtop controller installed An expansion mainframe is
36. S Error Messages so reson CREE cds ae a 4 43 Adjustment After ESI an PES 4 46 700 Startup Sequence ER E 4 46 Mainframe Troubleshooting 4 49 DiagnOStl6S chord ee een Epub Vete ne 4 49 Software Problems LE PERS PER ERES 4 50 Hardware Problems 222 iis cial eae ind ons REL RERO EE 4 50 Check for Common Problems 4 51 700 Startup Sequence sense 4 54 Isolating System Problems 4 56 Expansion Mainframe Troubleshooting 4 59 Repackaging Instructions 4 61 Packaging See ees OOS 4 61 Shipping to the Service 4 61 Options Tektronix Service Options 5 1 Optional Accessories 2 2 2 2 2 a 5 2 Diagrams Interconnection Block Diagram E uen 6 1 Replaceable Mechanical Parts St ndard Accessories sss os ges esu A LANE RU s ep 7 1 Optional Accessories Rn a 7 2 Parts Ordering Information 7 2 Using the Replaceable Parts 186 7 4 Index ii TLA 720 Benchtop Controller Service Manual Table of C
37. SIBILITY 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 SOFTWARE WARRANTY Tektronix warrants that the media on which this software product is furnished and the encoding of the programs on the media will be free from defects in materials and workmanship for a period of three 3 months from the date of shipment If amedium or encoding proves defective during the warranty period Tektronix will provide a replacement in exchange for the defective medium Except as to the media on which this software product is furnished this software product is provided as is without warranty of any kind either express or implied Tektronix does not warrant that the functions contained in this software product will meet Customer s requirements or that the operation of the programs will be uninterrupted or error free In order to obtain service under this warranty Customer must notify Tektronix of the defect before the expiration of the warranty period If Tektronix is unable to provide a replacement that is free from defects in materials and workmanship within a reasonable time thereafter Customer may terminate the license for this software product and return this software p
38. Service Manual Tektronix 720 Benchtop Controller 071 0269 01 TANI RAM 071026901 Jojo nuoo dojuoueg OcZ YIL Service Manual Tektronix 720 Benchtop Controller 071 0269 01 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 Copyright Tektronix Inc 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 Inc 14200 SW Karl Braun Drive Beaverton OR 97077 TEKTRONIX and TEK are registered trademarks of Tektronix Inc MagniVu and PowerFlex are registered trademarks of Tektronix Inc HARDWARE WARRANTY Tektronix warrants that the products that it manufactures and sells will be free from defects in materials and workmanship for a period of one 1 year from the date of shipment If a product proves defective during this warranty 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 In order to obtain service under this warranty Customer must notify Tektronix of the defect before the expiration of t
39. a metal rail Label any package that contains static sensitive boards Discharge the static voltage from your body by wearing a grounded antistatic wrist strap while handling these circuit boards Perform service of static sen sitive circuit boards only at a static free work station Nothing capable of generating or holding a static charge should be allowed on the work station surface Handle circuit boards by the edges when possible Do not slide the circuit boards over any surface Avoid handling circuit boards in areas that have a floor or work surface covering capable of generating a static charge TLA 720 Benchtop Controller Service Manual 4 1 Maintenance Inspection and Cleaning Exterior Inspection benchtop controller is inspected mechanically and electrically before shipment It should be free of marks or scratches and should meet or exceed all electrical specifications To confirm this inspect for physical damage incurred during transit Retain the packaging in case shipment for repair is necessary If there is damage or deficiency contact your local Tektronix representative Cleaning procedures consist of exterior and interior cleaning Periodic cleaning reduces instrument breakdown and increases reliability Clean the benchtop controller as needed based on your operating environment Inspect the outside of the benchtop controller for damage wear and missing parts Use Table 4 1 as a guide Modules that app
40. ailed the timer test The Try rebooting the system first If error controller board may be defective this message keeps reappearing the benchtop controller is defec tive Replace the benchtop controller Adjustment After Repair There are no adjustment procedures required after replacement of any part of the portable mainframe Power on the portable mainframe to ensure that it and any installed modules pass their power on diagnostics TLA 700 Startup Sequence The following information is intended to provide troubleshooting hints in case the logic analyzer fails to complete the startup sequence You may want to refer to Figure 4 25 on page 4 47 while reading the following paragraphs At power on the mainframe software starts the mainframe and module kernel tests If the mainframe passes the kernel tests it attempts to boot the Windows operating system If the mainframe fails the kernel tests it displays the error code s beeps and terminates the startup sequence The Windows operating system starts the resource manager The resource manager performs the following tasks m Mainframe power on self tests m Verifies the power on self test status m Inhibits any failed modules m Records the power on self test failures m Determines the logic analyzer configuration W Executes the system controller power on diagnostics 4 46 TLA 720 Benchtop Controller Service Manual Troubleshooting After completing all of the
41. anual for troubleshooting procedures for the benchtop chassis Monitor does not power on Benchtop controller appears to have no power Monitor display is blank no raster Verify monitor power cord is plugged in Failed fuse Monitor failure Benchtop controller may not be not fully inserted make sure the front of the benchtop controller is flush with front panel P ower off the benchtop chassis and reseat the benchtop controller Memory DIMMs incorrectly installed missing or defective Defective controller board or adapter board Benchtop controller power connector loose or defective Monitor SVGA cable not connected or defective External monitor controls brightness turned down Monitor defective Modules not recognized BIOS error messages are displayed TLA 720 Benchtop Controller Service Manual Module firmware incompatible with mainframe software version Refer to the TLA 700 Series Installation Manual for software and module firmware update instructions TLA 700 system problem Execute the internal resource manager program to determine if the mainframe recognizes any installed modules Refer to instructions on page 4 40 Faulty module Refer to appropriate module service manual for further troubleshooting information Refer to the BIOS error message table Table 4 9 on page 4 43 4 35 Troubleshooting Eliminate Other Problem Sources Substitute aGood Module Check the Benchtop C
42. ata la 1 1 1 4093 2036 2 0 1 7 2097152 la 2 2 3 4093 2033 2 0 1 7 2162688 Figure 4 24 ResMan32 program output 4 42 TLA 720 Benchtop Controller Service Manual Troubleshooting BIOS Error Messages The benchtop controller runs a BIOS test on bootup If the BIOS test encounters any problem the program displays the error the external monitor Table 4 9 lists the error codes an explanation of each error code and actions that can be taken Refer to the TLA 714 TLA 720 Series Installation Manual for information on BIOS setup parameters and feature settings For BIOS and other software and firmware setup information refer to the TLA 714 and TLA 720 Installation Manual Table 4 9 BIOS error codes and explanations Error code Diskette drive A error Extended RAM Failed at offset nnnn Failing Bits nnnn Action to be taken Error code explanation The BIOS testrecognizes the presence of the floppy disk drive but the floppy disk drive fails the POST test Verify the floppy disk drive is configured correctly in the CMOS setup Verify that the floppy disk drive cable is connected on the floppy disk drive and the adapter board The floppy disk drive may be defined incorrectly in the CMOS setup The floppy disk drive may not be con nected correctly on the adapter board The extended memory may not be configured correctly or the extended memory is defective at HEX address nnnn Verify that the ex
43. bent or missing pins TLA 720 Benchtop Controller Service Manual 4 49 Mainframe Troubleshooting Software Problems Hardware Problems 4 50 Reconnect the two blue expansion cables and the gray expansion cable and tighten the two connector screws Power up the mainframes and try again QA Win32 Diagnostics The QA Win32 diagnostics are a separate Windows application located in the Windows Start Programs menu The diagnostics check the basic operation of the controller Your TLA 700 Series Logic Analyzer comes with most software already installed Before running any of the diagnostics you should check the online release notes to verify the logic analyzer software matches the module firmware Run the QA Win32 diagnostics software to identify hardware or software problems Follow the QA Win32 online help instructions for running the diagnostics software The diagnostics are located in the Start menu under Programs QA Win32 Many software problems can be due to corrupted or missing software files In most cases the easiest way to solve software problems is to reinstall the software and follow the on screen instructions Refer to Upgrading Software for instructions on reinstalling or upgrading software If you suspect problems with the TLA 700 Series software contact your local Tektronix representative or refer to Contacting Tektronix on page Vi If you are certain that you have installed the logic analyzer correctly run the T
44. conductors Loosely inserted in sockets Firmly seatloose semiconductors Distorted pins Remove devices that have dis torted pins Carefully straighten pins as required to fit the socket and reinsert firmly Ensure that straightening action does not crack pins causing them to break off TLA 720 Benchtop Controller Service Manual 4 3 Maintenance Table 4 2 Internal inspection check list cont Item Repair action Wiring and cables Loose plugs or connectors Firmly seat connectors Repair or Burned broken or frayed wiring replace parts with defective wires or cables Chassis Dents deformations and dam Straighten repair or replace aged hardware defective hardware CAUTION To prevent damage from electrical arcing ensure that circuit boards and components are dry before applying power to the benchtop controller Interior Cleaning Use a dry low velocity stream of air to clean the interior of the benchtop Procedure controller Use a soft bristle brush for cleaning around components If you must use a liquid for minor interior cleaning use 75 isopropyl alcohol solution and rinse with deionized or distilled water Basic monthly routine maintenance is as follows m Clean the exterior face of the floppy disk drive CD ROM and replaceable hard disk drive cartridge with a soft clean cloth and a mild detergent m To clean the floppy disk drive use a commercially available floppy disk drive head c
45. e to identify if any of the installed modules are being identified in the mainframe slots Table 4 8 on page 4 41 lists some of the command line options for executing ResMan32 440 TLA 720 Benchtop Controller Service Manual Troubleshooting Table 4 8 Command line options for ResMan32 Option 0 0 Description ResMan32 will not close the text window after executing and displaying the results the major functions default p P ResMan32 will not execute the mainframe power on self test diagnostics default v V a A 0 p P ResMan32 records the resource manager actions in the text window in a short form or nonverbose mode ResMan32 will terminate the tests and display the resultant action information in the text window ResMan32 will perform the mainframe power on self test diagnostics ResMan32 records all actions in a text window in the verbose mode default T m M ResMan32 will not display the text window and the tests will terminate after executing regardless of the error conditions ResMan32 displays in a minimized window 1 Quit the TLA 700 application and any other applications on the desktop 2 Click on the Window Start button and select Run 3 In the dialog box enter the following path C Program Files TLA 700 System ResMan32 exe 4 Click on OK The ResMan32 program will check all of the installed modules and their addre
46. ear 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 benchtop controller or the benchtop chassis that the module plugs into Table 4 1 External inspection check list Item Repair action Frontpanelandside Cracks scratches deformations Replace defective or missing cover missing or damaged retainer parts screws or ejector handles Front panel connectors Broken shells cracked insulation Replace defective parts Clear dirt and deformed contacts Dirt in out of connectors connectors Rear connectors Cracked or broken shells dam Replace defective parts Clear dirt aged or missing contacts Dirtin outof connectors connectors Accessories Missing items or parts of items Replace damaged or missing bent pins broken or frayed cables and damaged connectors parts frayed cables CAUTION To prevent damage to electrical components from moisture during external cleaning use only enough liquid to dampen the cloth or applicator TLA 720 Benchtop Controller Service Manual Maintenance Exterior Cleaning Clean the exterior surfaces with a soft dry lint free cloth or a soft bristle brush Procedure If any dirt remains use a soft cloth or swab dipped in a 75 isopropyl alcohol solution Use a swab to clean narrow spaces around controls and connecto
47. ed hard disk drive 2 3 3 1 master drive slave drive jumper 4 28 operational verification 4 31 replacement 4 23 tools required for installation 4 24 Floppy disk drive 2 3 3 1 installation 4 20 removal 4 20 Front panel components 2 1 LED indicators 2 1 G General safety summary vii Index 1 Index H Hard disk drive fixed 2 3 3 1 fixed hard disk drive replacement 4 23 removal for TLA 714 4 24 removal for TLA 720 4 7 replaceable 2 3 3 1 Hard drive interface board installation 4 14 removal 4 14 Hardware problems 4 50 Injector Ejector handle installation 4 10 removal 4 10 Input Output connectors external signal in 2 6 external signal out 2 6 system trigger in 2 6 system trigger out 2 6 test SMBs 2 6 Inspection 4 2 Installation procedures equipment required 4 6 Interface board installation 4 18 removal 4 17 Interior inspection 4 3 Isolating system problems 4 40 4 56 J Jumper master drive slave drive 4 28 K Keyboard port description 2 3 L LPT port pin assignments 2 5 Main memory maximum installed configuration 1 1 2 2 Mainframe diagnostics 4 49 Index 2 fixed hard disk drive 2 3 replaceable hard disk drive 2 3 Maintenance benchtop controller cover 4 11 benchtop controller diagnostics 4 37 BIOS error message table 4 43 button battery 4 13 CD ROM drive 4 15 cleaning 4 2 common problem check list 4 34 4 51 diagnostics 4 49 equi
48. exists on the communica tions bus TEST Indicator Indicates that the benchtop controller is executing a power on self test POST diagnostic test sequence TLA 720 Benchtop Controller Service Manual 2 1 Operating Information Oo 0 7 SLEEP Indicator BENCHTOP CONTROLLER RUN Indicator Is CO SYSTEM FAIL Indicator mu TEST Indicator m 1 1 PCMCIA Cards 2 CD ROM Drive Floppy Disk Drive 1 Oo o SVGA OUT Port Port Replaceable Hard Disk D E Replaceable Hard Disk Drive mis mi USB Ports 2 SYSTEM TRIG IN MOUSE Mouse d ERO 2 m4 UT SYSTEM TRIG OUT ao m nd EXTERNAL SIG IN Keyboard ol 72 a EXTERNAL SIG OUT jo CO O Figure 2 1 Front view of the Benchtop Controller Main Memory Memory SO DIMMs The portable mainframe utilizes 144 SO DIMM memory devices The memory devices must have gold pins The maximum supported configuration is 128 MB Refer to the specifications for memory parameters
49. g boards in areas that have a floor or work surface cover that is capable of generating a static charge TLA 720 Benchtop Controller Service Manual 4 5 Removal and Installation Procedure A Tools Required WARNING To avoid electric shock always power off the chassis and disconnect the power cord before servicing the chassis Table 4 3 lists the tools you may need to replace modules the benchtop controller Table 4 3 Tools required Name Small flat blade screwdriver Screwdriver with a 0 Phillips head and a 6 inch long shaft Screwdriver with a T 9 tip Screwdriver with a T 10 tip 3 16 inch nut driver Diagonal cutters to remove cable ties Needle nose plier Soldering iron Solder wick or solder removing tool Benchtop Controller Service Overview Replaceable Modules 4 6 The internal boards are not individually replaceable If faults isolated to the board level the entire benchtop controller must be returned to a Tektronix Service Center for repair The following sub parts are replaceable m Replaceable hard disk drive and internal fixed hard disk drive m Floppy disk drive m CDROM drive backup button battery Front panel SMB connector assembly TLA 720 Benchtop Controller Service Manual Removal and Installation Procedure Removing the Replaceable Hard Disk Drive CAUTION Do not remove the replaceable hard disk drive when the mainframe is powered
50. ginning on page 2 1 When using this manual for servicing be sure to follow all warnings cautions and notes Strategy for Servicing This manual supports and contains all the information needed for periodic maintenance of the benchtop controller This manual does not support compo nent level fault isolation and replacement This manual also supports and contains information for corrective maintenance of this product m Supports isolation of faults to the failed circuit board or assembly level shown in the replaceable parts list of Chapter 10 m Supports removal and replacement of those boards or assemblies m Supports removal and replacement of fuse knobs chassis and other mechanical parts listed in the replaceable parts list TLA 720 Benchtop Controller Service Manual xi Introduction Service Offerings xii Warranty Repair Service Repair or Calibration Service At Depot Service Self Service Tektronix provides service to cover repair under warranty as well as other services that are designed to meet your specific service needs Whether providing warranty repair service or any of the other services listed below Tektronix service technicians are equipped to service the benchtop controller Services are provided at Tektronix Services Centers and on site at your facility depending on your location Tektronix warrants this product for one year from date of purchase Tektronix technicians provide warranty ser
51. hassis This module is part of the TLA 700 Series Logic Analyzer which comprises modules and the benchtop chassis and in this case the benchtop controller The following procedures will help you eliminate the benchtop chassis and other modules as possible sources of the failure s before you troubleshoot the benchtop controller If you have available aknown good controller perform the following procedure 1 Remove the suspect benchtop controller from the benchtop chassis The benchtop controller is a V XIbus slot zero device First verify that the benchtop controller is installed in slot zero 2 Install the known good benchtop controller in slot zero 3 Power on the benchtop chassis and check for normal operation 4 Ifthe failure symptoms are still present with the known good benchtop controller installed the problem is most likely in the benchtop chassis not in the benchtop controller Refer to the Troubleshooting section in Chapter 6 of your Benchtop Chassis Service Manual 5 If your benchtop chassis operates normally with the known good benchtop controller installed then the suspect benchtop controller needs to be serviced Refer to the Troubleshoot the Benchtop Controller Module on page 4 36 If you do not have a known good benchtop controller perform the following procedure to make sure the benchtop chassis is not the source of the failure m Remove all plug in modules from the benchtop chassis except the benchtop cont
52. hassis This sometimes works because one module is a sender while the other module is a receiver The single wide expansion module requires up to 60 lbs of insertion force to engage it into the back plane NOTE Do not use the mounting screws to engage the module into the backplane of the chassis The mounting screws will not provide enough force to seat the expansion module and you can easily be strip the threads 2 Install the known good benchtop controller in slot zero of the expansion chassis TLA 720 Benchtop Controller Service Manual 4 59 Mainframe Troubleshooting Check the Expansion Mainframe Replace the Expansion Module with a Benchtop 4 60 Controller Module 3 Power on the benchtop mainframe and check for normal operation 4 If the failure symptoms are still present with the known good benchtop controller installed the problem is most likely in the expansion mainframe not in the benchtop controller 5 If your expansion mainframe operates normally with the known good benchtop controller installed then the suspect benchtop controller needs to be serviced If you do not have a known good benchtop controller perform the following procedure to make sure the expansion mainframe is not the source of the failure m Remove all plug in modules from the expansion mainframe except the benchtop controller m Power up the benchtop mainframe and determine if the expansion mainframe is recognized by the TLA
53. he warranty period and make suitable arrangements for the performance of service Customer shall be responsible for packaging and shipping the defective product to the service center designated by Tektronix with shipping charges prepaid Tektronix shall pay for the return of the product to Customer if the shipment is to a location within the country in which the Tektronix service center is located Customer shall be responsible for paying all shipping charges duties taxes and any other charges for products returned to any other locations This warranty shall not apply to any defect failure or damage caused by improper use or improper or inadequate maintenance and care Tektronix shall not be obligated to furnish service under this warranty a to repair damage resulting from attempts by personnel other than Tektronix representatives to install repair or service the product b to repair damage resulting from improper use or connection to incompatible equipment c to repair any damage or malfunction caused by the use of non Tektronix supplies or d to service a product that has been modified or integrated with other products when the effect of such modification or integration increases the time or difficulty of servicing the product THIS WARRANTY IS GIVEN BY TEKTRONIX IN LIEU OF ANY OTHER WARRANTIES EXPRESS OR IMPLIED TEKTRONIX AND ITS VENDORS DISCLAIM ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE TEKTRONIX RESPON
54. he benchtop chassis and power up m Verify that the BIOS setup information is correct Enter the BIOS setup and verify the CD ROM drive type and size 8 Run the QAPlus WIN diagnostic software to verify that all of the functions of the benchtop controller are functioning correctly 4 16 TLA 720 Benchtop Controller Service Manual Removal and Installation Procedure Processor Board and Interface Board NOTE The internal boards are not individually replaceable If faults are isolated to the boards the entire benchtop controller must be returned to a Tektronix Service Center for repair The processor board and the interface board removal is a two part procedure First remove the front panel hardware to relieve mechanical stress on the soldered on connectors Then remove the two boards from the enclosure You will need a 9 Torx tip driver and 3 16 inch nut driver Removal To remove the front panel hardware refer to Figure 4 11 and follow these steps 1 Follow the instructions for removing the hard drive interface board found on page 4 14 2 Disconnect the four SMB cables from the processor board Figure 4 11 Removal and installation of the front panel hardware 3 Remove the standoffs and screws from the SVGA OUT COM A LPT mouse and keyboard connectors and the two screws securing the card slots in Figure 4 11 TLA 720 Benchtop Controller Service Manual 4 17 Removal a
55. he fixed hard disk drive 4 28 Figure 4 21 Installing the hard drive interface board 4 29 Figure 4 22 Seating the cover on the 4 30 Figure 4 23 Primary troubleshooting 4 39 Figure 4 24 ResMan32 program output 4 42 Figure 4 25 TLA 700 startup sequence 4 47 Figure 4 26 TLA 700 startup sequence 4 55 Figure 4 27 ResMan32 program output 4 58 Figure 6 1 Interconnection block diagram 6 1 Figure 6 2 Benchtop chassis block diagram 6 2 Figure 7 1 Benchtop controller exploded view 7 6 Figure 7 2 Benchtop controller exploded view cont 7 8 TLA 720 Benchtop Controller Service Manual iii Table of Contents List of Tables Table 1 1 Benchtop controller characteristics 1 1 Table 1 2 Benchtop controller mechanical characteristics 1 3 Table 1 3 Benchtop mainframes external signal interface Characteristics 2 en ea 1 3 Table 1 4 Benchtop mainframes backplane interface characteristics 00 1 5 Table 1 5 Electromagnetic compatibility EMC characteristics 1 5 Table 1 6 Atmospheric characteristics 1 6 Table 1 7 Dynamic characteristics 1 6 Table 1 8 Certifications and compliances
56. his parallel printer port supports standard Centronics mode Enhanced Parallel Port EPP or Microsoft high speed mode ECP and utilizes a 36 pin high density Centronics compliant connector See Table 2 3 for pin assignments Table 2 3 LPT parallel interface pin assignments Pin number Pin function Pin number Pin function 1 BUSY 19 GND 2 SLCT 20 GND 3 ACK 21 GND 4 ERR 22 GND 5 PE 23 GND 6 DO 24 GND 7 01 25 GND 8 D2 26 GND 9 03 27 GND 10 D4 28 GND ll D5 29 GND 12 D6 30 GND 13 D7 31 GND 14 INIT 32 GND 15 STB 33 GND 16 SLIN 34 GND 17 AF D 35 GND 18 36 See IEEE specification P1284 C for pin connection definitions for other modes TLA 720 Benchtop Controller Service Manual 2 5 Operating Information Input Output Connectors Test 1 0 SMBs System Trig In Connector System Trig Out Connector Ext Sig In Connector Ext Sig Out Connector Internal Components There are four test I O Sub Miniature Bayonet SMB connectors system trig in system trig out ext sig in and ext sig out The system trigger input is a TTL compatible signal input that is user definable in software The system trigger output is a TTL compatible output signal that is user definable in software The external signal Input is a TTL compatible input signal that is user definable in software The external signal output is a TTL compatible output signal that is user definable in software There a
57. iagnostics QA Win32 diagnostics m TLA 700 Mainframe Diagnostics Power on BIOS test On power up the benchtop controller automatically runs the power on BIOS test If the power on BIOS test detects a problem BIOS error s will be displayed The BIOS error messages are found in Table 4 9 on page 4 43 Power on Diagnostics The power on diagnostics check the basic functionality of the benchtop controller and mainframe at every power on If any failures occur at power on the screen displays the calibration and diagnostics property page Table 4 7 lists a subset of the power on tests Use the results of the tests to help you isolate problems The power on tests ensure that hardware is installed and can be accessed by the software The tests do not provide any performance information but they provide limited diagnostic information The TLA 700 mainframe diagnostics provide more extensive tests than the power on diagnostics The power on tests check the generic hardware including the keyboard mouse memory CPU and associated peripherals The interrupt lines and trigger lines are tested for each installed application module If there are no failures you can view the results of the tests in the Calibration and Diagnostics page under the System menu To view the Extended diagnostics click on the Extended tab TLA 720 Benchtop Controller Service Manual 4 37 Troubleshooting 4 38 Table 4 7 TLA 700 Power on diagnostic tests
58. ics Power on diagnostics run when you first power on the logic analyzer or when you first start the TLA 700 Series application If any diagnostic failures occur during power on the Calibration and Diagnostics property page appears Extended Diagnostics Extended diagnostics test the logic analyzer more thoroughly than the power on diagnostics The extended diagnostics test the modules in the benchtop mainframe as well as the modules in the expansion mainframe s You can use the extended diagnostics to isolate problems to an individual module Before running the extended diagnostics disconnect any attached probes TLA 700 Mainframe Diagnostics The TLA Mainframe diagnostics program is a stand alone Windows application located in the TLA 700 program group These diagnostics check operation of the mainframe beyond the basic PC circuitry These diagnostics also check the front panel knobs of the portable mainframe Expansion Mainframe Diagnostics At power on the expansion mainframe runs two power on diagnostics Power Cables A amp B and config and Cable C Connection Test If either of these power on diagnostics fail none of the modules associated with the expansion mainframe and possibly the expansion mainframe itself will be recognized The result will be as if the expansion mainframe was not connected Power down the mainframes Remove the two blue expansion cables and the gray expansion cable Examine the connectors for
59. instructions 1 Remove the cover following the instructions on page 4 11 2 Remove the processor and interface boards by following the board removal instructions on page 4 17 3 Separate the two boards as shown in Figure 4 13 4 Remove the screws that attach the floppy disk drive bracket to the circuit board 5 Remove the ribbon cable from the floppy disk drive Installation install the floppy disk drive follow these instructions 1 Attach the floppy disk drive and secure it with the screws you saved from the removal instructions 2 Connect the floppy disk drive ribbon cable to the floppy disk drive Verify that pin 1 of the cable is connected to pin 1 of the connector 3 Using the screws saved from the removal process secure the floppy disk drive to the circuit board 4 Connect the processor board to the interface board and secure with the screws removed in removal process 5 Replace the processor and interface boards by following the board installa tion instructions on page 4 18 Replace the cover following the instructions on page 4 12 Install the hard disk drive Install the controller into the benchtop chassis and power up az Rn Verify that the BIOS setup information is correct Enter the BIOS setup and verify the floppy disk drive type and size 10 Run the QAPlus WIN diagnostic software to verify that all of the functions of the benchtop controller are functioning correctly 4 20 TLA 720
60. instructions on page 4 12 5 Install the controller into the benchtop chassis and power up 6 Run the QAPlus WIN diagnostic software to verify that all of the functions of the benchtop controller are functioning correctly Hard Drive Interface Board 4 14 Removal Installation NOTE The internal boards are not individually replaceable If faults are isolated to the boards the entire benchtop controller must be returned to a Tektronix Service Center for repair To remove the hard drive interface board refer to Figure 4 9 and follow these instructions 1 Remove the replaceable hard disk drive 2 Remove the cover following the instructions on page 4 11 3 Disconnect the two ribbon cables located on the rear of the hard disk interface board 4 Remove the screws as shown Figure 4 9 5 Remove the hard drive interface board To install the hard drive interface board refer to Figure 4 9 and follow these instructions 1 Locate the hard drive interface board as shown in Figure 4 9 2 Install the screws 3 Connect the two ribbon cables located on the rear of the hard disk interface board 4 Replace the cover following the instructions on page 4 12 5 Install the hard disk drive TLA 720 Benchtop Controller Service Manual Removal and Installation Procedure CD ROM Drive Removal Hard drive interface board Remove screws 4 2
61. ity non condensing Maximum wet bulb temperature 29 C derated relative humidity to approximately 22 at 50 C Non operating no media in floppy disk drive 8 to 80 relative humidity non condensing Maximum wet bulb temperature 40 C derated relative humidity to approximately 55 at 50 C Altitude Operating Operating and non operating To 9144 feet 3000 meters derated 1 C per 1000 feet 305 meters above 5000 feet 1524 meters altitude Non operating 39376 feet 12000 meters Table 1 7 lists the dynamic characteristics Table 1 7 Dynamic characteristics Characteristic Description Random Vibration Operating and non operating Operating 0 27 gras total from 5 Hz to 500 Hz 10 minutes each axis 3 axes 30 minutes total Profile 0 00015 g2 Hz 5 350 Hz 3dB octave slope 350 500 Hz 0 000105 02 2 Non operating 2 28 total from 5 Hz to 500 Hz 10 minutes each axis 3 axes 30 minutes total Profile 0 0175 g2 Hz 5 100Hz 3dB octave slope 100 200 Hz 0 00875g2 Hz 200 350 Hz 3dB octave slope 350 500 Hz 0 006132 g2 Hz 1 6 TLA 720 Benchtop Controller Service Manual Specifications Certifications and Compliances Table 1 8 Certifications and compliances EC Declaration of Conformity EMC Meets intent of Directive 89 336 EEC for Electromagnetic Compatibility Compliance was demonstrated to the following specifications as listed in the Official ournal of the European Commu
62. k Flash jumper with pull tab 131 4356 00 for flashing module firmware TLA 700 Series Version 3 1 User Manual 071 0684 Tek mouse pad 016 1524 fuse holder 200 4326 00 Fuse 15A 159 0256 00 Fuse 6 3A 159 0381 00 Fuse 20A 159 0379 00 TLA 720 Benchtop Controller Service Manual Replaceable Mechanical Parts Optional Accessories Table 7 2 lists the optional accessories available for the benchtop mainframe Table 7 2 Standard accessories Accessory Part number Power cord North American right angle 161 0104 00 straight 161 0066 00 Power cord Universal Euro right angle 161 0104 06 straight 161 0066 09 Power cord UK right angle 161 0104 07 Straight 161 0066 10 Power cord Australian right angle 161 0104 05 straight 161 0066 11 Power cord Switzerland right angle 161 0167 00 straight 161 0154 00 Transport hard case wheeled 016 1522 00 TLA 720 Benchtop Controller Module Service Manual 071 0269 XX TLA 7Nx and TLA 7Px Logic Analyzer Module 071 0266 Service Manual TLA 7D1 7D2 7E1 7E2 Oscilloscope Module 070 9780 Service Manual TLA 7XM Expansion Module Service Manual 071 0674 Performance Verification and Adjustment 070 9776 Technical Reference Parts Ordering Information Replacement parts are available through your local Tektronix field office or representative Changes to Tektronix products are sometimes made to accommodate improved components as
63. l N Theory of Operation i Ae Theory of Operation Controller The benchtop controller is a high performance personal computer based controller The primary difference between the benchtop controller and a standard personal computer is the communications bus interface used to communicate with the benchtop chassis and the instrument modules Mass Storage The benchtop controller has a replaceable hard disk drive an internal fixed hard disk drive optionally field installed via TLA 7UP kit floppy disk drive and a CD ROM drive TLA 720 Benchtop Controller Service Manual 3 1 Theory of Operation 3 2 TLA 720 Benchtop Controller Service Manual 7 Maintenance Maintenance A Preventing ESD AN This chapter contains information needed to perform periodic corrective maintenance on the benchtop controller WARNING avoid electric shock always power off the chassis and disconnect the power cord before cleaning or servicing the chassis When performing any service which requires internal access to the benchtop controller adhere to the following precautions to avoid damaging internal circuit boards and their components due to electrostatic discharge ESD CAUTION Static discharge can damage any semiconductor component in the benchtop controller Minimize handling of static sensitive circuit boards Transport and store static sensitive circuit boards in their static protected containers or on
64. l and III PCMCIA Card Port Standard Type II and compatible PC card slot Compliant with PCMCIA and JEDIA 4 1 Table 1 2 lists the benchtop controller mechanical characteristics Table 1 2 Benchtop controller mechanical characteristics Characteristic Description Weight 5 Ib 3 oz 2 34 kg Size Three slot wide Overall dimensions Height 10 32 in 262 mm Width 3 6 in 78 mm Depth 14 7 in 373 mm Table 1 3 lists the external signal interface characteristics for the benchtop mainframe Table 1 3 Benchtop mainframes external signal interface characteristics Characteristic Description System Trigger Input TTL compatible input via rear panel mounted BNC connectors portable mainframe or front panel mounted SMB connectors benchtop mainframe Input Levels TTL compatible input Vin 220V Vi lt 0 8 V Input Mode Falling edge sensitive latched active low Minimum Pulse Width 12 ns Active Period Accepts system triggers during valid acquisition periods via real time gating resets system trigger input latch between valid acquisition periods Maximum Input Voltage 0 to 5 Volt peak TLA 720 Benchtop Controller Service Manual 1 3 Specifications Table 1 3 Benchtop mainframes external signal interface characteristics cont Characteristic External Signal Input Description TTL compatible input via rear panel mounted BNC connectors portable mainframe or front panel mounted SMB connectors
65. leaner kit and follow the manufacturers instructions 4 4 TLA 720 Benchtop Controller Service Manual Removal and Installation Procedure Preparation AN AN This section contains information needed to perform repair or corrective maintenance on the benchtop controller CAUTION The benchtop controller is not hot swapable Do not remove or install the benchtop controller when the benchtop chassis is powered on Installing or removing the benchtop controller when the benchtop chassis is powered on may result in damage to the benchtop controller Be sure to observe the following precautions to avoid damaging the benchtop controller while preparing to service it CAUTION Many components within the benchtop controller are susceptible to static discharge damage Service only in a static free environment Observe standard handling precautions for static sensitive devices Always wear a grounded wrist strap or equivalent while servicing m Do not handle static sensitive components on boards m Transport and store static sensitive boards in their original containers or on conductive foam Label any package that contains static sensitive assemblies m Wear an anti static wrist strap while handling the boards to discharge the static voltage from your body m Do not allow anything capable of holding or generating a static charge on the work surface m Do not slide a board over any surface m Avoid handlin
66. lick Start in the Windows tool bar c Select Programs from the Start menu d Select the QA Win32 application from the Programs menu e Run the memory tests from the QA Win32 menu If needed refer to the QA Win32 online help for more information on running QA Win32 TLA 720 Benchtop Controller Service Manual 4 31 Fixed Hard Disk Drive Replacement 4 32 TLA 720 Benchtop Controller Service Manual Troubleshooting WARNING Before performing this or any other procedure in this manual read the General Safety Summary and Service Safety Summary found at the beginning of this manual To prevent injury to service personnel or damage to electrical components please read Preventing ESD on page 4 1 This section contains information and procedures designed to help you isolate faults within the benchtop controller The process is as follows 1 Check for Common Problems on page 4 34 to eliminate easy to find problems first 2 Eliminate Other Problem Sources on page 4 36 to eliminate the benchtop chassis and other modules as the fault s source next 3 Troubleshoot the Benchtop Controller Module on page 4 36 to locate the failed replaceable part within the module If you have serviced this instrument using these procedures you must perform any verification and adjustment procedures Service Level This section supports isolation of faults within the benchtop controller to the replaceable pa
67. list 4 34 4 51 Problems hardware 4 50 software 4 50 Processor board installation 4 18 removal 4 17 Product description 1 1 Q QA Win32 4 50 R Removal procedures equipment required 4 6 Repackaging instructions 4 61 Replaceable hard disk drive 2 3 3 1 Replaceable modules CD ROM drive 4 6 fixed hard disk drive 4 6 TLA 720 Benchtop Controller Service Manual floppy disk drive 4 6 front panel SMB connector assembly 4 6 NVRAM backup button battery 4 6 replaceable hard disk drive 4 6 Replaceable parts 7 1 manufacturers cross index 7 5 ordering information 7 2 revision level 7 3 Resman resource manager 4 54 Resource manager Resman 4 54 RMA 4 61 5 Safety general safety summary vii service safety summary ix symbols viii terms viii to avoid fire vii to avoid personal injury vii Service at depot service xii benchtop controller cover 4 11 benchtop controller diagnostics 4 37 BIOS error message table 4 43 button battery 4 13 calibration service CD ROM drive 4 15 common problem check list 4 34 4 51 diagnostics 4 49 email address vi equipment required 4 36 expansion mainframe diagnostics 4 49 expansion mainframe troubleshooting 4 59 fault isolation procedure 4 37 fixed hard disk drive master slave jumper 4 28 operational verification 4 31 replacement 4 23 tools required 4 24 floppy disk drive 4 20 hard drive interface board 4 14
68. me and to the power source Check that the mainframe receives power when you press the On Standby switch Check that fans start and that front panel indicators light Check that power is available at the power source Check for failed fuses Mainframe failure contact your local Tektronix service center Expansion mainframe does not power on Monitor does not power on Verify that all power cords are connected to the expansion mainframe and to the power source Check that all of the TLA 7XM expansion modules are firmly seated and that the mounting screws on the TLA 7XM expansion modules are tightened Check that the cables between the mainframe and the expansion mainframe are correctly connected gt A B and C Check that the TLA 7XM expansion module is in slot 0 of the TLA 7XM expansion chassis Check that power is available at the power source Check for failed fuses Expansion mainframe failure contact your local Tektronix service center Check the monitor power cord connection Check for failed fuse Monitor failure contact the vendor of your monitor for corrective action TLA 720 Benchtop Controller Service Manual 4 51 Mainframe Troubleshooting Table 4 10 Failure symptoms and possible causes cont Symptom Monitor display is blank Possible causes and recommended action Check thatthe monitor is connected to the mainframe replace the cable if necessary If portable mainframe di
69. n self test diagnostics V ResMan32 records all actions in a text window in the verbose mode default TLA 720 Benchtop Controller Service Manual Mainframe Troubleshooting Table 4 11 Command line options for ResMan32 Cont Description HW ResMan32 will not display the text window and the tests will terminate after executing regardless of the error conditions m M ResMan32 displays in a minimized window 1 Quit the TLA 700 application and any other applications on the desktop 2 Click on the Window Start button and select Run 3 the dialog box enter the following path C Program Files TLA 700 System ResMan32 exe 4 Click on OK The ResMan32 program will check all of the installed modules and their address locations The program will print out data similar to that in Figure 4 24 on page 4 42 In this example the mainframe has two logic analyzer modules installed If ResMan32 encounters any errors such as an unsupported instrument or application module the resource manager will stop further communications and display information on why or at what point the instrument module was disabled TLA 720 Benchtop Controller Service Manual 4 57 Mainframe Troubleshooting Resource Mgr 09 09 97 08 48 49 Auto Exit Off Identify Static Configure Devices Found a device at LA 1 Found a device at LA 2 Identify Dynamic Configure Devices Matching Devices to Slots match 1 1 to
70. nd Installation Procedure 4 Remove the screws from the interface bottom board that secures the two boards to the chassis 5 Lift the two boards out of the chassis Remove screws 6 Figure 4 12 Removing the processor and interface boards 6 To separate the two boards remove the screws and carefully separate The boards are connected by two pass through connectors Installation install the processor and interface boards refer to Figure 4 12 and follow these steps 1 Place the two boards into the chassis as shown in Figure 4 12 2 Install the standoffs and screws to the SVGA OUT COM A LPT mouse and keyboard connectors 3 Install the screws from the interface bottom board that secures the two boards to the chassis 4 18 TLA 720 Benchtop Controller Service Manual Removal and Installation Procedure 4 Connect the four SMB cables as listed in Table 4 4 Table 4 4 Signal wire identification Color Signal White EXT SIG OUT White Brown stripe EXT SIG IN White Red stripe SYSTEM TRIG OUT White Orange stripe SYSTEM TRIG IN m Processor board Interface board Figure 4 13 Separating the processor and interface boards TLA 720 Benchtop Controller Service Manual 4 19 Removal and Installation Procedure Floppy Disk Drive Removal The floppy disk drive is located on the interface board To remove the floppy disk drive follow these
71. nd Return You may ship your module to us for repair after which we will return it to you New Modules You may purchase replacement modules in the same way as other replacement parts TLA 720 Benchtop Controller Service Manual 7 3 Replaceable Mechanical Parts Using the Replaceable Parts List The rest of this chapter contain lists of the replaceable mechanical and or electrical components of the Portable Mainframe Use these lists to identify and order replacement parts The following table describes each column in the lists Table 7 3 Parts lists column descriptions Column number Column name Description 1 Figure and Figure and index numbers in the exploded view illustrations Index Number 2 Tektronix Use this part number when ordering replacement parts from Part Number Tektronix 3and4 SerialNumber Column 3 indicates the serial number atwhich the part was first effective Column 4 indicates the serial number at which the part was discontinued No entries in either column indicates the partis good for all serial numbers 5 Qty Quantity of parts used 6 Name and An item name is separated from the description by a Description colon Because of space limitations an item name may sometimes appear incomplete Use the U S Federal Catalog Handbook H6 1 for further item name identification 7 Mfr Code Manufacturer code 8 Mfr Part Number Manufacturer s or vendor s part number Abbreviations Abbre
72. nd components when power is present Do Not Operate With Suspected Failures If you suspect there is damage to this product have it inspected by qualified service personnel Do Not Operate in Wet Damp Conditions Do Not Operate in an Explosive Atmosphere Keep Product Surfaces Clean and Dry Provide Proper Ventilation Refer to the manual s installation instructions for details on installing the product so it has proper ventilation TLA 720 Benchtop Controller Service Manual vii General Safety Summary viii Symbols and Terms A A Terms in this Manual These terms may appear in this manual WARNING Warning statements identify conditions or practices that could result in injury or loss of life CAUTION Caution statements identify conditions or practices that could result in damage to this product or other property Terms on the Product These terms may appear on the product DANGER indicates an injury hazard immediately accessible as you read the marking WARNING indicates an injury hazard not immediately accessible as you read the marking CAUTION indicates a hazard to property including the product Symbols on the Product The following symbols may appear on the product AN m WARNING Protective Ground CAUTION Double High Voltage Earth Terminal Refer to Manual Insulated TLA 720 Benchtop Controller Service Manual Service Safety Summary Only qualified personnel should perform se
73. nities EN 55011 Class A Radiated and Conducted Emissions EN 50081 1 Emissions EN 60555 2 AC Power Line Harmonic Emissions EN 50082 1 Immunity IEC 801 2 Electrostatic Discharge Immunity IEC 801 3 RF Electromagnetic Field Immunity IEC 801 4 Electrical Fast Transient Burst Immunity IEC 801 5 Power Line Surge Immunity TLA 720 Benchtop Controller Service Manual 1 7 Specifications 1 8 TLA 720 Benchtop Controller Service Manual DLE Operating Information Er ABESSE Operating Information Because the benchtop controller can not be operated outside of the benchtop chassis this chapter contains limited information about operation Refer to the TLA 700 Series User Manual for complete information on how to operate and configure the benchtop controller The benchtop controller is a control module that is an integral part of the benchtop chassis The benchtop controller hardware is a slot zero device and occupies three slots 0 through 2 Front Panel Components LED Indicators The following is an overview of the benchtop controller front panel components The benchtop controller has four LED indicators located on the front panel Figure 2 1 shows the front panel with the location of the LED indicators and front panel connectors SLEEP Indicator Indicates that the benchtop controller is in sleep mode RUN Indicator Indicates that the memory is accessing data SYSTEM FAIL Indicator Indicates a SYSFAIL condition
74. nown good keyboard Replace the benchtop controller module Keyboard error Keyboard error nn The keyboard may be missing or defective There may be a stuck or defective key The BIOS returns the address of the key where HEX nn is the address of the key Swap keyboard with a known good keyboard Swap keyboard with a known good keyboard Monitor type The monitor type may be defined incor Verify that the monitor type is does notmatch rectly in SETUP defined correctly in the CMOS CMOS Run setup SETUP Operating sys The operating system can not be found Insert a bootable disk into the tem notfound Parity Check 1 Parity Check 2 Press lt F1 gt to resume lt F2 gt to Setup A parity error was found on the commu nications bus The BIOS will return the address of the error or display if it cannot A parity error was found on the 1 0 bus The BIOS will return the address of the error or display if it cannot This message is displayed after a recover able error message floppy disk drive and try to reboot Reload the Windows operating system There may be a bad connection between the benchtop controller and the Benchtop Chassis or the benchtop contro er is not installed at slot zero and one Turn the power 0 benchtop contro ff remove the er Inspect the connectors on the rear of the benchtop contro benchtop contro er Install the er into
75. on The replaceable hard disk drive may be permanently damaged if it is removed while the mainframe is powered on Always power down the mainframe before removing the replaceable hard disk drive Verify that the controller is powered down The replaceable hard disk drive cartridge is removed by depressing it to release the latch Pull on the replaceable hard disk drive cartridge to remove it from the chassis Refer to Figure 4 1 4 2 and 4 3 Figure 4 1 Depress the latch TLA 720 Benchtop Controller Service Manual 4 7 Removal and Installation Procedure Figure 4 3 Removing the hard disk drive cartridge 4 8 TLA 720 Benchtop Controller Service Manual Removal and Installation Procedure Removing the Hard Disk Drive From The Cartridge To remove the hard disk drive from the cartridge refer to Figure 4 4 and follow these steps 1 Remove the four screws that fasten the hard disk drive to the cartridge 2 Carefully remove the hard disk drive from the cartridge and remove the cable assembly from the connector on the hard disk drive Remove 4 screws 4 Figure 4 4 Removing the hard disk drive from the cartridge TLA 720 Benchtop Controller Service Manual 4 9 Removal and Installation Procedure Injector Ejector Handles You will need T 10 Torx tip driver to replace the injector eject
76. on mainframe was running the expansion mainframe utility still thinks that the expansion mainframe is on To correctthis condition press and hold the power switch for three to four seconds The expansion mainframe will power down on its own Power off the benchtop mainframe Power on the benchtop mainframe the expansion mainframe will power up normally TLA 700 Startup Sequence 4 54 The following information is intended to provide troubleshooting hints in case the logic analyzer fails to complete the startup sequence You may want to refer to Figure 4 25 on page 4 47 while reading the following paragraphs At power on the mainframe software starts the mainframe and module kernel tests If the mainframe passes the kernel tests it attempts to boot the Windows operating system If the mainframe fails the kernel tests it displays the error code s beeps and terminates the startup sequence The Windows operating system starts the resource manager The resource manager ResMan32 performs the following tasks m Mainframe power on self tests m Expansion mainframe power on self tests m Verifies the power on self test status m Inhibits any failed modules m Records the power on self test failures m Determines the logic analyzer configuration m Executes the system controller power on diagnostics After completing all of the above tasks if you have performed the TLA 700 Final Setup the logic analyzer starts the TLA 7
77. ons Emissions shall be within the limits specified by the following requirements Enclosure EN 55011 Class A limits for radiated emissions Immunity Enclosure Radio Frequency No instrument failures when the instrument is subjected to a 3 V m electromagnetic Electromagnetic Field field over the frequency range of 80 MHz to 1000 MHz Immunity Enclosure Electrostatic Discharge Up to 8 kV with no change to control settings or impairment of normal operation ESD 4 kV contact discharge and 8 kV air discharge Immunity Fast transients Electrical No loss of stored data change to control settings degradation of performance or temporary loss of function will occur when the system is subjected to the transients as described below Port Peak Voltage Tr Th Rep Frequency Signal amp Control 0 5 kV 5 50 ns 5 kHz AC Power 1 0 kV 5 50 ns 5 kHz TLA 720 Benchtop Controller Service Manual 1 5 Specifications Table 1 6 lists the atmospheric characteristics Table 1 6 Atmospheric characteristics Characteristic Description Temperature Operating no media in floppy disk drive Operating and non operating 5 50 15 C hour maximum gradient non condensing derated 1 per 1000 feet above 5000 foot altitude Non operating no media in floppy disk drive 20 C to 460 C 15 C hour maximum gradient non condensing Humidity Operating no media in floppy disk drive Operating and non operating 20 to 80 relative humid
78. ontact your local Tektronix Sales Office for more information Optional Accessories Tektronix will ship the options shown in Table 5 1 Table 5 1 Options Option Label Description 1A Add LAN PC Card 10BaseT Add LAN Package IK Add LACART Add logic analyzer cart 1M Add 17 inch Monitor Add 17 color monitor includes 5 monitor cable Same 15A power cord ordered with TLA 711 2M Add 21 inch Monitor Add 21 color monitor includes 5 monitor cable Same 15A power cord ordered w TLA 711 5 2 TLA 720 Benchtop Controller Service Manual Se Diagrams Diagrams Interconnection Block Diagram This chapter contains the interconnection and block diagram for the benchtop chassis and controller Benchtop Controller Mouse amp Slots 0 2 Replaceable Keyboard disk drive hard PC Cards SVGA COM USB EPP disk drive amp Trigger P orts PCI to Backplane Trig PC Controller Bridge ASIC ASIC Display and 1 0 Hard Disk Interface Adapter Board Floppy disk drive Benchtop Chassis Module Slot 2 Module Slot 3 Module Slot 12 Power Supply Enhanced Monitor Figure 6 1 Interconnection block diagram TLA 720 Benchtop Controller Service Manual 6 1 Diagrams External Monitor Power Logical Addr RS232 Passive Monitor Fan Speed Switch Blower 12 6 512110 P9 53 7 8 Enhanced Power Supply Monitor A
79. ontents List of Figures Figure 2 1 Front view of the Benchtop Controller 2 2 Figure 4 1 Depress the latch 4 7 Figure 4 2 Unlatching the hard disk drive cartridge 4 8 Figure 4 3 Removing the hard disk drive cartridge 4 8 Figure 4 4 Removing the hard disk drive from the cartridge 4 9 Figure 4 5 Removal and installation of the ejectors 4 10 Figure 4 6 Removal and installation of the cover 4 11 Figure 4 7 Seating the cover on the 4 12 Figure 4 8 Removal and installation of the memory 4 13 Figure 4 9 Removing the hard drive interface board 4 15 Figure 4 10 Remove screws from the CD ROM bracket 4 16 Figure 4 11 Removal and installation of the front panel hardware 4 17 Figure 4 12 Removing the processor and interface boards 4 18 Figure 4 13 Separating the processor and interface boards 4 19 Figure 4 14 Unlatching the hard disk drive cartridge 4 24 Figure 4 15 Grasp the hard disk drive cartridge 4 25 Figure 4 16 Removing the hard disk drive cartridge 4 25 Figure 4 17 Removal and installation of the cover 4 26 Figure 4 18 Removing the hard drive interface board 4 27 Figure 4 19 Master drive slave drive jumper location 4 28 Figure 4 20 Installing t
80. or equivalent while servicing m Do not handle static sensitive components on boards m Transport and store static sensitive boards in their original containers or on conductive foam Label any package that contains static sensitive assemblies m Wear an antistatic wrist strap while handling the boards to discharge static voltage from your body m Do not allow anything capable of holding or generating a static charge on the work surface m Do not slide a board over any surface m Avoid handling boards in areas that have a floor or work surface cover that is capable of generating a static charge WARNING To avoid electric shock always power off the chassis and disconnect the power cord before cleaning or servicing the chassis TLA 720 Benchtop Controller Service Manual 4 23 Fixed Hard Disk Drive Replacement Tools Required Table 4 3 lists the tools you may need to replace modules in the benchtop controller Table 4 5 Tools required Name Small flat blade screwdriver Screwdriver with a 0 Phillips head and a 6 inch long shaft Screwdriver with a T 9 tip Screwdriver with a T 10 tip 3 16 inch nut driver Removing the Replaceable Hard Disk Drive Verify that the chassis is powered down The replaceable hard disk drive cartridge is removed by depressing it to release the latch Pull on the replaceable hard disk drive cartridge to remove it from the chassis Refer to Figure 4 14 4 15 and 4 16
81. or handles NOTE The labels can be replaced without removing the handles Removal To remove the injector ejector handles place the module on its right side as shown in Figure 4 5 and remove the screws and flat washers that secure the handle to the chassis Remove the handle Ejector handles 2 Figure 4 5 Removal and installation of the ejectors Installation Install the injector ejector handle through the front panel cutout onto the mounting post and install the screws and flat washers to secure the handle to the chassis NOTE The top and bottom injector ejector handles are not interchangeable 4 10 TLA 720 Benchtop Controller Service Manual Removal and Installation Procedure Benchtop Controller Cover Remove the cover to gain access internal modules and memory Removal Remove the screws shown in Figure 4 6 and lift the cover off Module cover Remove screws 8 Chassis Figure 4 6 Removal and installation of the cover TLA 720 Benchtop Controller Service Manual 4 11 Removal and Installation Procedure 4 12 Place the cover on the chassis Push forward on the cover so the tab on the front edge of the cover inserts into the rear of the front subpanel Make sure that the cover is fully seated with no gaps against the front and rear chassis flanges Make sure tab inserts into slot on rear of front panel Leave no vertical gap Figure 4 7 Seating the cover on the chassis
82. ore information on available upgrades to your mainframe There is one standard high density double sided floppy disk drive There is one CD ROM drive TLA 720 Benchtop Controller Service Manual 2 3 Operating Information Because of the speed at which the PC industry evolves the CD ROM drive is subject to change This service manual lists the speed of the CD ROM drive available at the time the product was introduced Consult your Tektronix Sales Representative for the maximum CD ROM speed available PC Card Bus There are two PC Card Bus slots The PC card s can be inserted in either slot or two cards can occupy both slots at the same time The PC card port supports an optional Ethernet NIC network interface card SVGA Port SVGA OUT port supports an industry standard SVGA color monitor The connector is a 15 pin sub D SVGA compliant connector See Table 2 2 for pin assignments Table 2 2 SVGA OUT pin assignments Pin number Pin function Pin number Pin function 1 RED 2 GRN 3 BLU 4 NC 5 GND 6 GND 1 GND 8 GND 9 10 GND 1 12 DDC DAT 13 HSYNC 14 VSYNC 15 DDD CLK COM COM port is an industry standard RS 232 serial port Pin number Pin function Pin number Pin function 1 DCD 2 RXD 3 TXD 4 DTR 5 GND 6 DSR 7 RTS 8 CTS 9 Ring Indicator 2 4 TLA 720 Benchtop Controller Service Manual Operating Information LPT Port The LPT port is a parallel printer port T
83. owner s address m Name and phone number of a contact person and serial number of the instrument m Reason for returning B complete description of the service required Mark the address of the Tektronix Service Center and the return address on the shipping carton in two prominent locations TLA 720 Benchtop Controller Service Manual 4 61 Repackaging Instructions 4 62 TLA 720 Benchtop Controller Service Manual Options Options This chapter lists the advertised options for the color benchtop mainframe Refer to the Replaceable Mechanical Parts chapter for a list of standard and optional accessories Tektronix Service Options Tektronix offers maintenance options that cover calibration and repair services Contact your local Tektronix representative for details Tektronix offers the following service options These options are modular flexible and easy to order with your instrument Designed to ease installation and start up to support tracking of calibration to requirements of 1509000 and to provide for extended repair coverage these options help fix your long term maintenance costs and eliminate unplanned expenditures And these options can be converted from service at Tektronix service depots to service on site see Option 51 53 which helps keep downtime to a minimum Product installation service Upgrade installation service Three years of calibration services Option IN
84. pment required 4 36 expansion mainframe troubleshooting 4 59 exterior cleaning 4 3 exterior inspection 4 2 fault isolation procedure 4 37 floppy disk drive 4 20 hard drive interface board 4 14 Injector Ejector handle 4 10 inspection 4 2 interface board 4 17 interior cleaning 4 4 interior inspection 4 3 isolating system problems 4 40 4 56 memory SO DIMM 4 13 preventing ESD 4 1 processor board 4 17 soldered on connectors 4 21 tools required 4 6 troubleshooting 4 33 troubleshooting tree 4 39 Manual conventions structure v Mass storage 3 1 Mechanical characteristics 1 3 Memory maximum installed configuration 1 1 2 2 SO DIMM 2 2 Memory SO DIMM installation 4 13 removal 4 13 Module packaging 4 61 shipping information 4 61 Mouse port description 2 3 N Naming conventions benchtop chassis v benchtop controller v TLA 720 Benchtop Controller Service Manual Index benchtop mainframe v expansion mainframe v TLA 711 v TLA 720 v TLA 7XM v NVRAM button battery 4 13 0 Operating information 2 1 Operating system 2 6 Option list 5 2 Optional accessories 7 2 Packaging 4 61 Packing instructions 4 61 Parallel printer port description 2 5 pin assignment 2 5 Parts manufacturers cross index 7 5 ordering information 7 2 replaceable 7 1 revision level 7 3 card port description 2 4 Printer port description 2 5 pin assignment 2 5 Problem check
85. rd disk drive 4 24 TLA 720 mainframe removing the hard disk drive 4 7 Tools required to install fixed hard disk drive 4 24 to service 4 6 Troubleshooting 4 33 adjustment after repair 4 46 benchtop controller diagnostics 4 37 BIOS error message table 4 43 common problem check list 4 34 4 51 equipment required 4 36 expansion mainframe 4 59 fault isolation procedure 4 37 isolating system problems 4 40 4 56 service level 4 33 tree 4 39 U USB port description 2 3 pin assignments 2 3 W World Wide Web address Customer Service vi Tektronix vi TLA 720 Benchtop Controller Service Manual
86. re allocations for two SO DIMM memory modules The SO DIMM modules are located internally to the controller but can be accessed by removing the side cover There is a replaceable button battery to backup the NVRAM Operating System and Application Interface 2 6 The benchtop controller ships with the Microsoft Windows operating system factory installed Operations and capabilities when running on the benchtop controller are the same as with Windows running on a high performance personal computer Windows Help is available from the Start menu of the Windows Task Bar Refer to the TLA 700 Series Installation Manual if you need to reinstall any software The TLA 700 Series application interface is used to control data acquisition and processing by the logic analyzer The TLA 700 Series application software is included with the product TLA 720 Benchtop Controller Service Manual Operating Information Diagnostics The benchtop controller performs power on BIOS diagnostics every time you power on the mainframe The diagnostics window displays when any of the diagnostic tests fail To access the diagnostics tests use the System pull down menu There are two other utilities to aid in troubleshooting QA Win32 and the TLA 700 Mainframe Diagnostics Refer to the Maintenance section for informa tion on diagnostics TLA 720 Benchtop Controller Service Manual 2 7 Operating Information 2 8 TLA 720 Benchtop Controller Service Manua
87. remove the modules Set the address switches to FF and reinstall the modules m Verify that the modules do not have the flash programming jumper installed on the rear of the module Power off the mainframe and remove the modules Remove the jumper and reinstall the modules Try placing a suspected module in a different slot to verify slot dependency problems For example if you have a single module in slots 2 and 3 power off the mainframe move the module to slots 3 and 4 and try the tests again If the module works in the new location you have identified a faulty slot in the mainframe m Check for bent or broken pins on the backplane of the mainframe You can execute the internal resource manager program ResMan32 exe to identify if any of the installed modules are being identified in the mainframe slots Table 4 8 lists some of the command line options for executing ResMan32 Table 4 11 Command line options for ResMan32 Option Description a A 0 0 ResMan32 will not close the text window after executing and displaying the results the major functions default p P ResMan32 will not execute the mainframe power on self test diagnostics default v V ResMan32 records the resource manager actions in the text window in a short form or nonverbose mode a A 0 ResMan32 will terminate the tests and display the resultant action information in the text window p P ResMan32 will perform the mainframe power o
88. removed after the module firmware was reflashed Power off mainframe and check that all modules are fully inserted Module address switches not set correctly Power off mainframe and remove module Set address switches to FF and reinstall module Module failure replace with known good module or contact your local Tektronix service center Mainframe failure contact your local Tektronix service center Expansion mainframe is notrecog Power down the mainframe and expansion mainframe s Check that both of the TLA 7XM expansion modules are firmly seated and that the mounting Expansion mainframe does notshow screws on the TLA 7XM expansion modules are tightened up in the system window Remove the two blue expansion cables and the gray expansion cable the connectors on the cables for bent or broken pins Examine the connectors on the expansion mainframe Reconnect the two blue expansion cables and the gray expansion cable and tighten the screws on the connectors Verify that the cables are not crossed verify that the cables are connected A A B gt C Power on mainframe and expansion mainframe s The mainframe power must be recycled in order for the ResMan32 resource manager application to correctly configure Expansion mainframe failure contact your local Tektronix service center Expansion mainframe is recognized Power down the mainframe and expansion mainframe s
89. roduct and any associated materials for credit or refund THIS WARRANTY IS GIVEN BY TEKTRONIX IN LIEU OF ANY OTHER WARRANTIES EXPRESS OR IMPLIED TEKTRONIX AND ITS VENDORS DISCLAIM ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE TEKTRONIX RESPONSIBILITY TO REPLACE DEFECTIVE MEDIA OR REFUND CUSTOMER S PAYMENT 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 Maintenance lugo zn EE Manual Structure Manual Conventions Contacting 55 sect Shu ptio aeons a General Safety Summary Service Safety Introduction su are Strategy for Servicing 66 ee Service Offerings serce seii bd REV A DE eee dw Reeds nie REY Product Desenption zus Re ERROR Characteristics siat ne CHER Rea Certifications and Compliances
90. roller m Run signs of life tests Primary Troubleshooting Tree in Chapter 6 of the TLA 720 Color Benchtop Chassis Service Manual Troubleshoot the Benchtop Controller Module 4 36 Equipment Required Follow the procedure in this section to identify the failed part within the benchtop controller This procedure requires that the benchtop chassis is fully functional If you have not determined that the benchtop chassis is fully functional refer to Eliminate Other Problem Sources on page 4 36 The basic troubleshooting procedures require no test equipment There are no accessible test points to measure voltages or signals within the benchtop controller TLA 720 Benchtop Controller Service Manual Troubleshooting Testing and adjustments might be required to correct some faults Under those circumstances you will need the test equipment listed in the TLA 700 Series Performance Verification and Adjustment Procedures manual Fault Isolation Procedure The fault isolation procedure for the benchtop controller consists of following the the primary troubleshooting tree in Figure 4 23 If you are unable to identify any problems through the troubleshooting tree or through diagnostic programs refer to Isolating System Problems beginning on page 4 40 for further troubleshooting information Benchtop Controller benchtop controller diagnostics consist of the following tests Diagnostics Power on BIOS test m Power on d
91. rs Do not use abrasive cleaning compounds on any part of the benchtop controller cleaning use just enough moisture to dampen the cloth or swab CAUTION Avoid getting moisture inside the benchtop controller during exterior Use only deionized water when cleaning Use a 7596 isopropyl alcohol solution as a cleanser and rinse with deionized or distilled water Do not use chemical cleaning agents they may damage the chassis Avoid chemicals that contain benzene toluene xylene acetone or similar solvents Interior Inspection Remove the module cover to access the inside of the benchtop controller for inspection and cleaning Refer to the Removal and Installation Procedure section on page 4 5 for detailed information on cover removal Inspect the internal portions of the benchtop controller for damage and wear using Table 4 2 as a guide Defects found should be repaired immediately Table 4 2 Internal inspection check list Item Repair action Circuit boards Loose broken or corroded solder Return to a Tektronix Service connections Burned circuit Center boards Burned broken or cracked circuit run plating Resistors Burned cracked broken blistered Return to a Tektronix Service condition Center Solder connections Cold solder or rosin joints Return to a Tektronix Service Center Capacitors Damaged or leaking cases Return to a Tektronix Service Corroded solder on leads or Center terminals Semi
92. rt level that is reflected in the replaceable part list in Chapter 10 In most cases faults are isolated to circuit boards or assemblies but not to individual components on those boards See Strategy for Servicing on page NOTE The circuit boards are not replaceable parts on their own If there is a failure return the entire benchtop controller to a Tektronix Service Center for module exchange TLA 720 Benchtop Controller Service Manual 4 33 Troubleshooting Check for Common Problems Use Table 4 6 to quickly isolate possible failures Table 4 6 lists problems related to the benchtop controller and possible causes This list is not exhaustive but it may help you eliminate a problem that are quick to fix such as a blown fuse or loose cable Table 4 6 Failure symptoms and possible causes Symptom Mainframe does not power on Possible cause s Power connection faulty check or substitute the power cord Fuse blown check the line fuse on the benchtop chassis Benchtop chassis power supply failure refer to the TLA 720 Benchtop Chassis Service Manual for troubleshooting procedures Hard disk drive related symptoms Benchtop controller fails to boot up Benchtop controller not operating Benchtop controller may not be not fully inserted make sure the front of the benchtop controller is flush with front panel Reseat the benchtop controller if necessary Try booting to the floppy disk drive and or
93. rvice 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 ofthe 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 TLA 720 Benchtop Controller Service Manual ix Service Safety Summary X TLA 720 Benchtop Controller Service Manual A Introduction This manual contains information needed to properly service the benchtop controller This introduction contains information critical to safe and effective servicing of the benchtop controller To prevent personal injury or damage to the benchtop controller consider the following requirements before attempting service m The procedures this manual should be performed only by a qualified service person m Read the General Safety Summary and Service Safety Summary found at the beginning of this manual m Read the Preface beginning on page v m Read Operating Information be
94. s to display any modules in the System Window you may have a system problem Check for the following Verify that all modules are properly installed Verify that the module address switches are set correctly Power off the mainframe and remove the modules Set the address switches to FF and reinstall the modules Verify that the modules do not have the flash programming jumper installed on the rear of the module Power off the mainframe and remove the modules Remove the jumper and reinstall the modules Try placing a suspected module in a different slot to verify slot dependency problems For example if you have a single module in slots 2 and 3 power off the mainframe move the module to slots 3 and 4 and try the tests again If the module works in the new location you have identified a faulty slot in the mainframe Check for bent or broken pins on the backplane of the mainframe Faulty module Replace the suspected faulty module with a known good module or contact your local Tektronix service center Incompatible module firmware and mainframe software versions Refer to the TLA 714 and TLA 720 Installation Manual for software and module firmware update instructions Ensure that the CMOS Setup parameters are set correctly refer to Appen dix of the TLA 714 TLA 720 Installation Manual for a list of the correct setups Check for computer viruses You can also execute the internal resource manager program ResMan32 ex
95. slot 1 match la 2 to slot 3 Setting VISA Attributes la 1 slot 1 device class 2 manf id Oxffd model code 0 774 addr spc 0 la 2 slot 3 device class 2 id Oxffd model code 0 771 addr spc 0 Setting VISA Address Maps A24 device la 1 starting address 200000x size 65536 A24 device la 2 starting address 210000x size 65536 Enabling Events amp Responses la 1 Int ID 1 assigned to IRQ 4 Enabling Events 16 32 124 125 127 la 1 Asynchronous Enable succeeded Responses are unsupported by this device la 2 Int ID 1 assigned to IRQ 4 Enabling Events 16 32 124 125 127 la 2 Asynchronous Enable succeeded Responses are unsupported by this device Begin Normal Operation slot 1 LA 1 started successfully slot 3 LA 2 started successfully VISA Data la 1 1 1 4093 2036 2 0 1 7 2097152 la 2 2 3 4093 2033 2 0 1 7 2162688 Figure 4 27 ResMan32 program output 4 58 TLA 720 Benchtop Controller Service Manual Mainframe Troubleshooting Expansion Mainframe Troubleshooting Look and Listen for the Expansion Mainframe Power On Sequence Substitute aKnown Good Expansion Module Because the expansion mainframe adds a level of complexity to troubleshooting problems this section will concentrate on tips and tricks to aid you in troubleshooting expansion mainframe related problems If you have exhausted all of the failure symptoms and possible causes that start on page 4 34 try some of the troubleshooting
96. splay is blank try connecting external monitor if both displays blank contact your local Tektronix service center External monitor controls turned down adjust monitor controls for brightness and contrast Check the controller BIOS setups for the monitor Faulty monitor contactthe vendor of your monitor for corrective action Mainframe powers on but does not complete the power on sequence Power on diagnostics fail Mainframe does notrecognize accessories such as monitor printer or keyboard LA Module merge not allowed in TLA 700 Application Power off mainframe and check that all modules are fully inserted If mainframe is a benchtop mainframe check the status of the SYSTEM FAIL and TEST LEDs on the benchtop controller If either LED stays on contact your local Tektronix service center Check the status of the READY and ACCESSED LEDs on the front panel of the application modules The READY LED turns on when the module passes the power on diagnostics and when the module is ready to communicate with the controller The ACCESSED LED turns on any time the controller accesses the module Check for disk in floppy disk drive make sure mainframe boots from the hard disk drive Check for faulty module Remove modules one at a time and power on the mainframe If mainframe completes the power on sequence replace faulty module Possible software failure or corrupted hard disk see Software Problems at the beginning of this
97. ss locations The program will print out data similar to that in Figure 4 24 on page 4 42 In this example the mainframe has two logic analyzer modules installed If ResMan32 encounters any errors such as an unsupported instrument or application module the resource manager will stop further communications and display information on why or at what point the instrument module was disabled TLA 720 Benchtop Controller Service Manual 4 41 Troubleshooting Resource Mgr 09 09 97 08 48 49 Auto Exit Off Identify Static Configure Devices Found a device at LA 1 Found a device at LA 2 Identify Dynamic Configure Devices Matching Devices to Slots match 1 1 to slot 1 match la 2 to slot 3 Setting VISA Attributes la 1 slot 1 device class 2 manf id Oxffd model code 0 774 addr spc 0 la 2 slot 3 device class 2 id Oxffd model code 0 7 1 addr spc 0 Setting VISA Address Maps A24 device la 1 starting address 200000x size 65536 A24 device la 2 starting address 210000x size 65536 Enabling Events amp Responses la 1 Int ID 1 assigned to IRQ 4 Enabling Events 16 32 124 125 127 la 1 Asynchronous Enable succeeded Responses are unsupported by this device la 2 Int ID 1 assigned to IRQ 4 Enabling Events 16 32 124 125 127 la 2 Asynchronous Enable succeeded Responses are unsupported by this device Begin Normal Operation slot 1 LA 1 started successfully slot 3 LA 2 started successfully VISA D
98. tended memory is configured correctly in the CMOS setup Exchange the SO DIMMs if one of the SO DIMMs are defective the error address should change Exchange the SO DIMMs if one of the SO DIMMs are defective the error address should change The RAM address mapped to HEX nnnn in the system shadow or extended memory has failed A 1 in the map indicates a failed bit Fixed Disk 0 Failure or Fixed Disk Controller Failure Incorrect Drive A Type run Setup The hard disk drive may not be defined correctly in the CMOS setup Verify the hard disk drive is configured correctly in the CMOS setup Verify that the hard disk drive cable is connected on the hard disk drive Verify that the replaceable hard disk drive is installed The hard disk drive may notbe connected correctly The hard disk drive may be defective The replaceable hard disk drive may not be installed The floppy disk drive may not be defined correctly in the CMOS setup Verify the floppy disk drive is configured correctly in the CMOS setup TLA 720 Benchtop Controller Service Manual 4 43 Troubleshooting 4 44 Table 4 9 BIOS error codes explanations cont Error code Invalid NVRAM media type Keyboard con troller error Error code explanation Action to be taken The BIOS can not access the Replace the memory SO DIMMs The keyboard controller may be defective Swap keyboard with a k
99. tips and tricks that follow There are certain signs that the expansion mainframe is not powering on correctly By looking and listening to these signs of you can determine if the expansion mainframe is not powering on because the expansion mainframe is not receiving a signal from the expansion module Upon powering on the benchtop mainframe a signal is sent from the expansion module in the benchtop mainframe to the expansion module in the expansion mainframe via the three expansion cables If the expansion mainframe does not receive this signal the expansion mainframe will not be prompted to power on If the power on signal is received by the expansion mainframe the fan will start and the lamp on the mainframe will light Further indications that the mainframe is receiving signals from the expansion module is that the lights on the expansion module and any other installed modules will blink indicating that signals are being received If you have available a known good benchtop controller perform the following procedure 1 Remove the suspect benchtop controller from the expansion mainframe The benchtop controller is a slot zero device when installed in the expansion mainframe First verify that the benchtop controller is installed in slot zero and that the MODID switches on the back of the module are set to FF or Try swapping the benchtop controller from the benchtop mainframe with the expansion module from the expansion c
100. ts list Fig amp index Tektronix Serial Serial number part number effective discont d 1 1 348 1365 01 2 348 1537 00 3 367 0484 00 4 334 9189 00 5 334 9236 00 6 367 0489 00 214 4762 00 TLA 720 Benchtop Controller Service Manual Qty amp description 1 SHLD GSKT ELEC SYMETRICAL SLOTTED FINGER 0 350 W X 7 5 L RIVIT SNAP IN RIVIT SPACING 1 5 IN GASKET EMI CLIP ON 1 98 L BE CU TIN PLATED W T LANCES HANDLE EJ ECTOR INJ ECTOR EJ ECTOR ASSEMBLY TWO WIDE VXI W OUT KEYING SPRING LOADED PLASTIC 20 GL MARKER INDENT EJ ECTOR LABEL BOTTOM 0 745 X 0 520 MARKER IDENT MKD TEKTRONIX TOP INJ ECTOR EJ ECTOR LABEL BENCHTOP CONTROLLER HANDLE INJ ECTOR EJ ECTOR ASSEMBLY TWO WIDE VXI WITH TTL KEYING SPRING LOADED PLASTIC 1096 SPRING CONICAL SPRING CONICAL Mfr code 0KM03 0KM03 80009 0 05 0 05 80009 8 345 Mfr part number 0493 0070 00 0493011500 367 0484 00 334918900 334923600 367 0489 00 ORDER BY DESCRIPTION 7 7 Replaceable Mechanical Parts ON AS N S RKO DS QE x X IPS o Ly VA SN DNE N N 5 x 3 N NUN px D y EE Gy Figure 7 2 Benchtop controller exploded view cont TLA 720 Benchtop Controller Service Manual 7 8 Replaceable Mechanical Parts Replaceable parts list Fig amp
101. viations conform to American National Standard ANSI Y 1 1 1972 7 4 TLA 720 Benchtop Controller Service Manual Replaceable Mechanical Parts Mfr Code to Manufacturer The table titled Manufacturers Cross Index shows codes names and addresses of Cross Index manufacturers or vendors of components listed in the parts list Manufacturers Cross Index Mfr Code Manufacturer 06383 PANDUIT CORP 0B445 ELECTRI CORD MFG CO INC 0 05 NORTH STAR NAMEPLATE INC 01017 RADISYS CORPORATION 0VF15 TOTAL TECHNOLOGIES LTD 02035 3COM CORPORATION 1GM54 A ZYTEC CORP 24931 BERG ELECTRONICS INC 26742 METHODE ELECTRONICS INC 2W733 BELDEN WIRE amp CABLE COMPANY 2W944 PAPST MECHATRONIC CORP 50356 TEAC AMERICA INC 51506 ACCURATE SCREW MACHINE CO 52152 3M COMPANY 5F520 PANEL COMPONENTS CORP 60128 MICROSOFT CORPORATION 61081 ELECTRONIC SOLUTIONS 63426 NKK SWITCH 71400 BUSSMANN 15915 LITTELFUSE INC 7X318 KASO PLASTICS INC 80009 TEKTRONIX INC 80126 PACIFIC ELECTRICORD CO 8 345 NORTHWEST SPRING CO 53109 FELLER U S CORPORATION TK2208 NORTHWEST RUBBER EXTRUDERS INC TK2469 UNITREK CORPORATION TK2541 ELECTRONICS LTD Address 17303 RIDGELAND AVE 312 EAST MAIN STREET 5750 NE MOORE COURT 5445 NE DAWSON CREEK DRIVE 21105 ANNE ST 5353 BETSY ROSS DRIVE 7575 MARKET PLACE DR BERG ELECTRONICS RF COAXIAL DIV 2100 EARLYWOOD DR 7444 WEST WILSON AVE 2200 US HWY 27 SOUTH AQUIDNECK INDUSTRIAL PARK 713
102. vice at most Tektronix service locations worldwide The Tektronix product catalog lists all service locations worldwide The following services can be purchased to tailor repair and or calibration of the benchtop controller to fit your requirements Tektronix offers several standard priced adjustment calibration and repair services m single repair and or adjustment m Calibrations using equipment and procedures that meet the traceability standards specific to the local area m Annual maintenance agreements that provide for repair of the benchtop controller Of these services the annual maintenance agreement offers a particularly cost effective approach to service for many owners of the benchtop controller Tektronix supports repair to the replaceable part level by providing module exchange TLA 720 Benchtop Controller Service Manual DUDEN Specifications Specifications Product Description Characteristics Tables This chapter provides a brief product description specifications and characteris tics of the TLA 720 Color Benchtop Controller The TLA 720 Color Benchtop Controller is a high performance personal computer based controller that installs in the color benchtop chassis This section lists only the specifications that are useful for servicing All specifications listed here should be considered typical Typical characteristics describe typical or average performance and provide useful reference informa
103. y disk drive 24X Standard PC Compatible Continually subjectto change due to the fast moving PC component environment Valid at product introduction Standard PC graphics accelerator technology bitBLT based capable of driving external color VGA SVGA or XGA monitors Display Memory 2MB Display Drive One VGA SVGA or XGA compatible analog output port Display Size User selected via Windows 98 Resolution P ixels Colors DDC1 640 x 480 256 yes 640 x 480 64 000 yes 640 x 480 16 800 000 800 x 600 256 yes 800 x 600 64 000 yes 1024 x 768 256 yes 1280 x 1024 256 yes 1600 x 1200 256 yes SVGA Output P ort The SVGA port utilizing a 15 pin sub D SVGA connector Compliant with EIA RS 343A SVGA Dual USB Ports Two USB Ports Mouse Port 52 compatible pointing device port Keyboard Port 52 compatible keyboard port Parallel Interface P ort LPT Serial Interface P ort COM Parallel interface port supports standard Centronics mode Enhanced Parallel P ort EPP or Microsoft high speed mode and utilizes a 36 pin high density connector The serial port utilizing a 9 pin male sub D connector to support an RS232 serial port Compliant with EIA TIA 574 TLA 720 Benchtop Controller Service Manual Specifications Table 1 1 Benchtop controller characteristics cont Characteristic Card Bus 32 Description Standard Type and II PC compatible PC card slot Compliant with PCMCIA and JEDIA 4 1 Type I I
104. y precautions to avoid injury and prevent damage to this product or any products connected to it To avoid potential hazards use this product only as specified Only qualified personnel should perform service procedures While using this product you may need to access other parts of the system Read the General Safety Summary in other system manuals for warnings and cautions related to operating the system To Avoid Fire or Connect and Disconnect Properly Do not connect or disconnect probes or test Personal Injury leads while they are connected to a voltage source Ground the Product This product is indirectly grounded through the grounding conductor of the mainframe power cord To avoid electric shock the grounding conductor must be connected to earth ground Before making connections to the input or output terminals of the product ensure that the product is properly grounded Observe All Terminal Ratings To avoid fire or shock hazard observe all ratings and marking on the product Consult the product manual for further ratings information before making connections to the product Do not apply a potential to any terminal including the common terminal that exceeds the maximum rating of that terminal Do Not Operate Without Covers Do not operate this product with covers or panels removed Use Proper Fuse Use only the fuse type and rating specified for this product Avoid Exposed Circuitry Do not touch exposed connections a

Service Manual TLA 720 Benchtop Controller 071-0269-01

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