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1. Rear case slots 4 ESD grounding ears are properly aligned with the rear case slots when they are visible in approximately one half the width of the slots Main board notches ESD grounding ears 4 ES Se Figure 6 5 Aligning the oscilloscope rear case TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual 6 13 Maintenance Front Feet You will need a torque limiting Torx T 15 screwdriver and pliers for this procedure Removal First remove the power button and rear case using the procedures on page 6 10 Then slide the front feet out of the front case as shown in Figure 6 6 Installation Slide the feet into the slots provided in the front case as shown in Figure 6 6 Use the installation procedures for each module removed to reassemble the oscilloscope 5 Front foot Figure 6 6 Removing and installing the front feet 6 14 TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual Maintenance Power Supply Module Use a torque limiting Torx T 15 screwdriver and pliers for this procedure Removal To remove the module refe
2. dM 2 3 ys Extension Module gt eo e gt Main Board Power CH3 v Amplifier Acquisition Processor and ASIC B ASIC B Display B 1 Lj M Microprocessor Trigger Becomes part of chain A on 2 channel Note Used in 4 channel models only Figure 9 1 TDS1000 and TDS2000 series block diagram 9 2 TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual E Replaceable Parts This chapter contains a list of the replaceable modules for the TDS1000 and TDS2000 series oscilloscopes Use this list to identify and order replacement parts Parts Ordering Information Module Servicing Replacement parts are available through your local Tektronix field office or representative Changes to Tektronix products are sometimes made to accommodate improved components as they become available and to give you the benefit of the latest improvements Therefore when ordering parts it is important to include the following information in your order Part number Instrument type or model number Instrument serial number Instrument modification number if applicable If you order a part that has been replaced with a different or improved part your local Tektronix field office or representative will contact you concern
3. 4 7 Check External Edge Trigger 5 4 9 Adjustment Procedures Required Equipment 0 0 eee ee ccc 5 1 Adjustment Procedure eI See shoe RR Re ES 5 3 Enable the Service Menu 5 3 Adjustment Procedure a A ce cece eens 5 5 Maintenance Pr paration arco Ee NERA IURE ARS HR ER BA OP EA SEN 6 1 Preventing eet etn BA ere ee e SA e OSEE ERR 6 1 Inspection and Cleaning ere ee ee Re PERRA 6 2 General Care Son A bee Ape eere ee eam 6 2 Inspection and Cleaning Procedures 6 2 Removal and Installation Procedures 6 5 Pr parations oed eve rete HC pH HE 6 5 List of Modules rece ASA bet eed e eei 6 5 Summary of Procedures 6 6 Tools i sc re Ere eee Gee dB SERES 6 6 Rear Feet eeu Are Dre ee A HOC Poe e a ea 6 7 Flip FC s S ACC ree eeu een ocd de 6 9 Front Paniel Krobs 4 ee bee et Aerei 6 10 Power Button or 6 10 Rear Cases E ROM AE A a 6 10 Front Feet 2 esset repa S wendy ete oh E yd E A 6 14 Power Supply Module cece ee eee 6 15 Internal Assembly oer o erem eem ed 6 17 Display Cable P RDUM ERE sug REESE 6 19 Front Panel Cable e hte ete itera
4. 50 2 feedthrough BNC cable terminator 3 Setthe oscilloscope VOLTS DIV to 500 mV div 4 Setthe oscilloscope SEC DIV to 25 ns div TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual 4 7 Performance Verification 4 8 5 Set the leveled sine wave generator frequency to 10 MHz 6 Set the leveled sine wave generator output level to approximately 500 mV so that the measured amplitude is approximately 500 mV The measured amplitude can fluctuate around 500 mV 7 Press SET LEVEL TO 50 Adjust TRIGGER LEVEL as necessary and then check that triggering is stable 8 Setthe leveled sine wave generator frequency to m 60 MHz if you are checking a TDS1002 2002 m 100 MHz if you are checking a TDS1012 2012 2014 m 200 MHz if you are checking TDS2022 2024 9 Setthe oscilloscope SEC DIV to 10 ns div 10 Set the leveled sine wave generator output level to approximately 750 so that the measured amplitude is approximately 750 mV The measured amplitude can fluctuate around 750 mV 11 Press SET LEVEL TO 50 Adjust TRIGGER LEVEL as necessary and then check that triggering is stable 12 Change the oscilloscope setup using the following step Press menu button Select menu option Select setting 13 Press SET LEVEL TO 50 Adjust TRIGGER LEVEL as necessary and then check that triggering is stable 14 Change the oscilloscope setup using the following step Press menu button Sel
5. Sinewave generator setup Edge setup Two Channel Four Channel Leveled sine Digitizing oscilloscope Square wave Digitizing oscilloscope wave generator generator a m cococcoc ceo oco La M m 21 0000 20 20 OOs S Output e o Output 2 OO 40000 50 Q feedthrough terminator Table 5 2 5 3 list proper channel BNC cable Figure 5 1 Adjustment setups 5 4 50 Q feedthrough terminator Table 5 2 and 5 3 list proper channel BNC cable TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual Adjustment Procedures Adjustment Procedure Use this procedure to load new calibration constants 1 Ui Bs ee 10 11 Enable the Service menu as described on page 5 3 Push the Service option button Push the Factory Cal option button Push the Warmup Timer option button Push the Start Timer option button to ensure a 10 minute warm up After 10 minutes passes the oscilloscope displays a large black or green cross Press the front panel UTILITY button and push the Service option button Push the Factory Cal option button Push the FCAL INIT option button to initiate the factory calibration routine You are now in step 1 of the procedure As indicated by Step 1 in Table 5 2 connect a 0 0 Vpc source to the channel inputs Press F
6. Trigger Trigger Sensitivity Edge Trigger Type TDS2022 and TDS2024 TDS1002 TDS1012 TDS2002 TDS2012 and TDS2014 5 S s to 2 GS s 5 S s to 1 GS s sin x x 2500 samples for each channel TDS2022 and TDS2024 2 5 ns div to 50 s div in a 1 2 5 5 sequence TDS1002 TDS1012 TDS2002 TDS2012 and TDS2014 5 ns div to 50 s div in a 1 2 5 5 sequence 50 ppm over any 1 ms time interval Conditions Accuracy Single shot Sample mode 1 sample interval 50 ppm x reading 0 6 ns gt 16 averages 1 sample interval 50 ppm x reading 0 4 ns Sample interval s div 250 TDS1002 TDS1012 TDS2002 TDS2012 TDS2014 TDS2022 and TDS2024 5 ns div to 10 ns div 4 div x s div to 20 ms 25 ns div to 100 us div 250 us div to 50 s div 4 div x s div to 50 ms 4 div x s div to 50 s TDS2022 and TDS2024 2 5 ns div 4 div x s div to 20 ms Coupling Sensitivity DC CH1 CH2 CH3 and CH4 1 div from DC to 10 MHz 1 5 div from 10 MHz to Full BW EXT 200 mV from DC to 100 MHz 350 mV from 100 MHz to 200 MHz EXT 5 1 V from DC to 100 MHz 1 5 V from 100 MHz to 200 MHz Bandwidth reduced to 6 MHz with a 1X probe 1 4 TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual Specifications Table 1 1 Oscilloscope specifications Cont Trigger Trigger Sensitivity Edge Trigger Type typical Trigger Level Range Trigger Level Accuracy typic
7. 40 C to 71 C 40 F to 159 8 F Cooling Method Convection Humidity 40 C or below x 90 relative humidity 104 F or below 141 C to 450 C x 60 relative humidity 106 F to 122 F Altitude Operating and Nonoperating 3 000 m 10 000 ft Random Vibration Operating 0 31 grms from 5 Hz to 500 Hz 10 minutes on each axis Nonoperating 2 46 gnus from 5 Hz to 500 Hz 10 minutes on each axis Mechanical Shock Operating 50 g 11 ms half sine Mechanical Size Height 151 4 mm 5 96 in Width 323 8 mm 12 75 in Depth 124 5 mm 4 90 in Weight approximate When packaged for domestic shipment 3 6 kg 8 0 Ibs TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual 1 7 Specifications Table 1 3 Oscilloscope EMC certifications and compliances European Union Australia New Zealand U S A Meets the intent of Directive 89 336 EEC for Electromagnetic Compatibility Compliance was demonstrated to the following specifications as listed in the Official Journal of the European Communities EN 61326 EMC requirements for Class A electrical equipment for measurement control and laboratory usel2 IEC 61000 4 2 Electrostatic discharge immunity Performance criterion B IEC 61000 4 3 RF electromagnetic field immunity Performance criterion A IEC 61000 4 4 Electrical fast transient burst immunity Performance criterion B IEC 61000 4 5 Power line surge i
8. CAUTION To prevent getting moisture inside the oscilloscope during external cleaning use only enough liquid to dampen the cloth or applicator To avoid damage to the surface of the oscilloscope or probes do not use any abrasive or chemical cleaning agents Inspection Interior Inspect and clean the interior if it appears that the oscillo scope may have been damaged or exposed to an unusually dirty environment To inspect and clean the interior disassemble the oscilloscope by completing each of the disassembly procedures in the order given starting on page 6 5 Inspect the internal portions of the oscilloscope for damage and wear using Table 6 1 as a guide Repair defects immediately Table 6 1 Internal inspection check list Item Inspect for Repair action Front and Cracks or deformations Scratched lettering Repair or replace defective Rear Case or display filter Loose connectors or labels hardware Circuit boards Loose broken or corroded solder connec Remove failed module and tions Burned circuit boards Burned replace with a new module broken or cracked circuit run plating Solder Cold solder or rosin joints Resolder joint and clean with connections isopropyl alcohol Wiring and Loose plugs or connectors Burned broken Firmly seat connectors Repair or cables or frayed wiring replace modules with defective wires or cables TDS1000 and TDS2000 Series Digital Storage Oscilloscopes
9. The probe ground lead is at ground potential Do not connect the ground lead to an elevated voltage Do Not Operate Without Covers To avoid electric shock or fire hazard do not operate this product with covers or panels removed Use Proper Fuse To avoid fire hazard use only the fuse type and rating specified for this product Do Not Operate in Wet Damp Conditions To avoid electric shock do not operate this product in wet or damp conditions Do Not Operate in an Explosive Atmosphere To avoid injury or fire hazard do not operate this product in an explosive atmosphere Use Proper Power Source Do not operate this product from a power source that applies more than the voltage specified Provide Proper Ventilation To prevent product overheating provide proper ventilation Do Not Operate With Suspected Failures If you suspect there is damage to this product have it inspected by qualified service personnel TDS1000 and TDS2000 Series Digital Storage Oscilloscopes 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 indicate
10. and 15 pin for the color display 3 With the display module in place but not connected thread the display cable through the appropriate slot on the chassis 4 Twist the cable two revolutions to keep it from contact with the boards and chassis and secure using the left cable tie 5 Connect the display cable at J201 on the main board by pushing the cable straight down into the connector 6 Install the four screws to attach the display module to the internal assembly Internal assembly Display module Figure 6 11 Installing the display cable 6 20 TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual Maintenance Front Panel Cable You will need a torque limiting Torx T 15 screwdriver and pliers for this procedure Removal To remove the front panel cable refer to Figure 6 12 and follow these steps 1 Remove the power button and rear case using the procedures on page 6 10 2 Untwist the cable tie to release the front panel cable 3 Disconnect the front panel cable at J202 on the main board by pulling straight up from the connector 4 Disconnect the front panel cable at J1 on the front panel module Front panel cable Main board J202 Front panel module J1 Figure 6 12 Removing and installing the front panel cable TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual 6 21 Maintenance 6 22 Main Board Module A Installatio
11. 671 5583 00 1 CIRCUIT BD ASSY MAIN 2 CH 200MHZ COLOR TDS2022 80009 671 5583 00 671 5584 00 1 CIRCUIT BD ASSY MAIN 4 CH 200MHZ COLOR TDS2024 80009 671 5584 00 16 210 1039 00 3 WASHER LOCK 2 CH 0 521 10 0 025 THK SST TDS1002 OKBO1 210 1039 00 TDS1012 TDS2002 TDS2012 TDS2022 210 1039 00 5 WASHER LOCK 4 CH 0 521 10 0 025 THK SST TDS2014 OKBO1 210 1039 00 TDS2014 17 220 0497 00 3 NUT PLAIN HEX 2 CH 0 5 28 X 0 562 HEX BRS CD PL OKBO1 220 0497 00 220 0497 00 5 NUT PLAIN HEX 4 CH 0 5 28 X 0 562 HEX BRS CD PL OKBO1 220 0497 00 18 174 4658 00 1 CA ASSY SP DISCRETE 26 AWG 5 5 L FEMALE 1 X 12 0 059 TK6549 174 4658 00 1 5 MM CTR DUAL ENDED FRONT PANEL 10 4 TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual Replaceable Parts Table 10 3 Replaceable parts list cont Fig amp index Tektronix part number number 19 679 5439 00 679 5440 00 20 260 2763 00 260 2764 00 260 2765 00 21 348 1525 00 22 202 0388 00 202 0389 00 23 335 0714 00 335 0715 00 335 0716 00 24 366 0771 00 366 0771 00 25 366 0772 00 366 0772 00 26 335 0725 00 335 0726 00 335 0708 00 335 0709 00 335 0710 00 335 0711 00 335 0712 00 Serial no effective Serial no discont d Qty Name amp description 1 A o c CKT BD SUBASSY FRONT PANEL 2 CH TDS2002 TDS2012 TDS2022 TDS1002 TDS1012 CKT BD SUBASSY FRONT PANEL 4 CH TDS2014 TDS2024 SWITCH KEYPAD ELASTOMERIC 2 CHANNEL M
12. CHx 3 3 DC Voltage 1 20V 4 4 DC Voltage 1 1 6V 5 5 DC Voltage 1 1 2V 6 6 DC Voltage 1 0 8 V 7 7 DC Voltage 1 0 4V 8 8 DC Voltage 1 0 32 V 9 9 DC Voltage 1 0 2V 10 10 DC Voltage 1 0 16 V 11 11 DC Voltage 1 0 08 V 12 12 DC Voltage 1 0 04 V 13 13 DC Voltage 1 0 03 V 14 14 DC Voltage 1 0 02 V 15 15 DC Voltage 1 0 015 V 16 16 DC Voltage 1 0 015 V 17 17 DC Voltage 1 0 02 V 18 18 DC Voltage 1 0 03 V 19 19 DC Voltage 1 0 04 V 20 20 DC Voltage 1 0 08 V 21 21 DC Voltage 1 0 16 V 22 22 DC Voltage 1 0 2 V 23 23 DC Voltage 1 0 32 V 24 24 DC Voltage 1 0 4 V 25 25 DC Voltage 1 0 8 V 26 26 DC Voltage 1 1 2V 27 27 DC Voltage 1 1 6V 28 28 DC Voltage 1 2 0V 29 29 DC Voltage 1 20 0V 30 30 DC Voltage 1 0 0V 5 6 TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual Adjustment Procedures Table 5 2 Adjustment steps Cont Step Step Two channel Four channel models models Signal Signal source setting Input Refer to the DC voltage setup 2 diagram 31 31 DC Voltage 2 5 0V EXT TRIG 32 32 DC Voltage 2 1 0V 33 33 DC Voltage 2 1 0V 34 34 DC Voltage 2 5 0V Refer to the Sinewave generator setup diagram BWL refers the maximum bandwidth of the oscilloscope 35 35 Sinewave Generator 50 Ohm 5 kHz 1 Vp p CH1 36 36 Sinewave Generator 50 Ohm 1 MHz 100 37 37 Sinewave Generator 50 Ohm 1 MHz 1 Vp p 38 38
13. Keypad 6 28 Front Case 6 30 Tools Required Use the following tools to remove and replace all modules in the oscilloscope Torque limiting screwdriver long shank 12 in Ib 1 3 N m range with Torx T 15 tip m 9 16 inch deep socket with wide center hole S K Hand Tool Corp S K 40818 or equivalent Torque wrench to 40 in Ib 4 5 N m m Screwdriver with 1 4 inch flat blade Pliers all purpose and needle nose m Sharp knife X ACTO knife or equivalent 6 6 TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual Maintenance Rear Feet You will need a flat blade screwdriver to remove the rear feet Removal To remove the rear feet refer to Figure 6 1 and follow these steps 1 Place the oscilloscope face down on a soft surface such as an anti static mat 2 Use a flat blade screwdriver to pry out the foot or twist the foot as you are removing it so that it disengages from the guides Use care not to mar the surface of the rear case Figure 6 1 Removing the rear feet TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual 6 7 Maintenance Installation To install the rear feet refer to Figure 6 2 and follow these steps 1 Place the oscilloscope face down on a soft surface such as an anti static mat 2 Align the slots of the rear foot with the guides in the rear case and press the foot in Figure 6 2 Installing the rear feet 6 8 TDS1000 and TDS2
14. Open case Replace power supply Backlight cable Attach backlight attached cable A Using a high voltage 100X probe test voltages on backlight connectors Replace display Detach display Replace power supply Figure 6 21 Oscilloscope troubleshooting tree 3 of 3 6 34 TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual Maintenance PROBE COMP Output When the oscilloscope is on and operating properly the PROBE COMP output should generate a square wave approximately 5 V in amplitude at a 1 kHz frequency Use the oscilloscope and set the Attenuation switch to 10X on the P2100 probe to probe this output As shown in the table below there are two cases of defects Either the 1 kHz signal is on and the power supply and main board are both active and functional ly capable of doing acquisition or one of those two modules is not performing correctly While a large number of different possible frequencies exist all involve detected failures on the main board due to main board failure or power supply failure Signal at PROBE COMP 1 kHz signal no display Possible problem Refer to Troubleshooting the Display page 6 36 Non 1 kHz signal Refer to Troubleshooting the Main Board page 6 43 No signal Refer to Troubleshooting the Power Supply page 6 35 Troubleshooting the To troubleshoot the power supply follow these steps Power Supply 1 Remove the re
15. RAMS You can contact Tektronix for the RAMS shipping address and instructions xiv TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual Sa ONES b Specifications These specifications apply to all TDS1000 and TDS2000 series oscilloscopes To verify that an oscilloscope meets specifications it must first meet the following conditions m The oscilloscope must have been operating continuously for ten minutes within the specified operating temperature W You must perform the Do Self Cal operation accessible through the Utility menu if the operating temperature changes by more than 5 m The oscilloscope must be within the factory calibration interval of one year Specifications begin in Table 1 1 All specifications are guaranteed unless noted typical Specifications that are marked with the symbol are checked in the chapter Performance Verification Table 1 1 Oscilloscope specifications Acquisition Acquisition Modes Sample Peak Detect and Average Acquisition Rate typical Single Sequence Inputs Input Coupling Up to 180 waveforms per second per channel Sample acquisition mode no measurements Acquisition Mode Acquisition Stops After Sample Peak Detect Single acquisition all channels simultaneously Average N acquisitions all channels simultaneously N is selectable from 4 16 64 and 128 DC AC or GND Input Impedance DC Coupled 1 MQ 2 in parallel with 2
16. Sinewave Generator 50 Ohm 50 kHz 1 Vp p 39 39 Sinewave Generator 50 Ohm 20 MHz 1 Vp p 40 40 Sinewave Generator 50 Ohm BWL 25 mVp p 41 41 Sinewave Generator 50 Ohm BWL 50 mVp p 42 42 Sinewave Generator 50 Ohm BWL 100 mV 43 43 Sinewave Generator 50 Ohm BWL 250 mV 44 44 Sinewave Generator 50 Ohm BWL 500 mV 45 40 Sinewave Generator 50 Ohm BWL 1 Vp p 46 46 Sinewave Generator 50 Ohm 5 kHz 2 5 Vp p 47 47 Sinewave Generator 50 Ohm 1 MHz 2 5 Vp p 48 48 Sinewave Generator 50 Ohm 50 kHz 2 5 Vp p 49 49 Sinewave Generator 50 Ohm 20 MHz 2 5 Vp p 50 50 Sinewave Generator 50 Ohm BWL 2 5 Vp p 51 51 Sinewave Generator 50 Ohm BWL 5 Vp p 52 52 Sinewave Generator 50 Ohm BWL 1 6 Vp p 53 53 Edge 50 Ohm Refer to Edge setup 1 kHz 0 to 800 mV diagram TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual Adjustment Procedures Table 5 2 Adjustment steps Cont Step Step Two channel Four channel models models Signal Signal source setting Input 54 54 Sinewave Generator 50 Ohm 5 kHz 1 Vp p CH2 55 55 Sinewave Generator 50 Ohm 1 MHz 100 56 56 Sinewave Generator 50 Ohm 1 MHz 1 Vp p 57 57 Sinewave Generator 50 Ohm 50 kHz 1 Vp p 58 58 Sinewave Generator 50 Ohm 20 MHz 1 Vp p 59 59 Sinewave Generator 50 Ohm BWL 25 mVp p 60 60 Sinewave Generator 50 Ohm BWL 50 mVp p 61 61 Sinewave Generator 50 Ohm BWL 100 62 62
17. Sinewave Generator 50 Ohm BWL 250 mVp 63 63 Sinewave Generator 50 Ohm BWL 500 64 64 Sinewave Generator 50 Ohm BWL 1 Vp p 65 65 Sinewave Generator 50 Ohm 5 kHz 2 5 Vp p 66 66 Sinewave Generator 50 Ohm 1 MHz 2 5 Vp p 67 67 Sinewave Generator 50 Ohm 50 kHz 2 5 Vp p 68 68 Sinewave Generator 50 Ohm 20 MHz 2 5 Vp p 69 69 Sinewave Generator 50 Ohm BWL 2 5 Vp p 70 70 Sinewave Generator 50 Ohm BWL 5 Vp p 5 8 TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual Adjustment Procedures Table 5 2 Adjustment steps Cont Step Two channel models NA Step Four channel models Signal Signal source setting Input 71 Sinewave Generator 50 Ohm 5 kHz 1 Vp p CH3 72 Sinewave Generator 50 Ohm 1 MHz 100 73 Sinewave Generator 50 Ohm 1 MHz 1 Vp p 74 Sinewave Generator 50 Ohm 50 kHz 1 Vp p 75 Sinewave Generator 50 Ohm 20 MHz 1 Vp p 76 Sinewave Generator 50 Ohm BWL 25 mVp p 77 Sinewave Generator 50 Ohm BWL 50 mVp p 78 Sinewave Generator 50 Ohm BWL 100 79 Sinewave Generator 50 Ohm BWL 250 80 Sinewave Generator 50 Ohm BWL 500 mV 81 Sinewave Generator 50 Ohm BWL 1 Vp p 82 Sinewave Generator 50 Ohm 5 kHz 2 5 Vp p 83 Sinewave Generator 50 Ohm 1 MHZ 2 5 Vp p 84 Sinewave Generator 50 Ohm 50 kHz 2 5 Vp p 85 Sinewave Generator 50 Ohm 20 MHz 2 5 Vp p 86 Sinewave Generator 50 Ohm BWL 2 5
18. Standard North American 120 V 60 Hz 161 0066 00 Option A1 European 230V 50Hz 161 0066 09 Option A2 United Kingdom 230 V 50 Hz 161 0066 10 Option A3 Australian 240 V 50 Hz 161 0066 11 Option A5 Switzerland 230 V 50 Hz 161 0154 00 Option A6 Japan 100V 60Hz 161 0298 00 Option AC China 220 V 50 60 Hz 161 0304 00 Option A99 No power cord These manuals contain a language overlay for the front panel controls Table 10 5 Replaceable optional accessories Description of accessory Replacement programmer manual Tektronix part number or nomenclature 071 1075 XX Soft case AC220 Transit case HCTDS32 Communications Extension Module TDS2CMA Rackmount Kit RM2000 Requires the soft case which fits inside TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual 10 7 Replaceable Parts 10 8 TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual
19. TDS2000 Series Digital Storage Oscilloscopes Service Manual Maintenance Troubleshooting This section contains information and procedures to help you isolate a defective module in the oscilloscope WARNING Before doing this or any other procedure in this manual read the Is General Safety Summary and Service Safety Summary found at the beginning of this manual Also to prevent possible injury or damage to electrical components read Preventing ESD on page 6 1 Adjustment After Repair If you replace the main board or power supply you must adjust the oscilloscope after repair Refer to the chapter Adjustment Procedures Required Tools and You may need the the following tools and equipment to troubleshoot the Equipment oscilloscope Tools and equipment Example Oscilloscope with 1X 10X and 100X probes Tektronix TDS1000 or TDS2000 series oscilloscope with standard accessory 1X 10X probe P2200 and optional 100X probe P5100 or P5200 DMM 3 5 or greater digit DMM Troubleshooting Tree isolate a problem to a specific troubleshooting procedure use the trouble shooting tree in Figures 6 19 6 20 and 6 21 Detailed procedures follow the tree TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual 6 31 Maintenance A From Figure 6 21 Turn on power Does screen lighten To Figure 6 21 See boot up screen No Put scope or frequency counter on probe co
20. Test Screen Select Test FP to start the front panel controls test Push each button and rotate each knob to verify the operation of all controls If all buttons and knobs have passed the test pushing the lower menu button EXIT exits the test If any button fails to operate inspect and or clean the switch keypad and the front panel board contacts If cleaning does not solve the problem the switch keypad front panel board or main board may be defective Follow the remaining steps in this procedure below to isolate the problem 8 Replace the switch keypad and then retest the buttons If the problem persists proceed to step 9 9 Use the test oscilloscope and set the Attenuation switch to 10X on the P2200 probe to probe the front panel cable connector at J202 on the main board two channel models or J1 four channel models The table below describes the signals you should expect to see Signal at J202 2 channel models or J1 4 channel models 1FPLED Description LED latch line 6 44kHz High with 120 ns low pulses Location of pulse relative to FPCLR 12 P determines which lights are lit 2 FPCLR 12 P Clear Front Panel Scan line A 6 44kHz Low pulsing high with 50ns pulses Determines beginning of a scan sequence for first half of front panel 3FPCLK 12 P Front Panel Clock line A 405 kHz High with 50 ns pulses going low Each clock after FPCLR 12 P increments the scan location by one 4 FPDA
21. button to display the Diagnostics menu 4 Push the Clear Error Log option button to clear the error log of past failures This also sets the Power Cycle count to zero TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual 6 45 Maintenance Repackaging Instructions Use these procedures to repackage the oscilloscope for shipment or storage Packaging Use a corrugated cardboard shipping carton having a test strength of at least 125 kg 275 pounds and with an inside dimension at least 15 25 cm six inches greater than the oscilloscope dimensions Make sure that the oscilloscope is adequately padded with a cushioning material like foam paper or bubble wrap The oscilloscope should not move around inside of the carton when sealed If the oscilloscope is being shipped to a Tektronix Service Center enclose the following information m The owner address m Name and phone number of a contact person Type and serial number of the oscilloscope m Reason for returning A complete description of the service required Seal the shipping carton with an industrial stapler or strapping tape Mark the address of the Tektronix Service Center and also your own return address on the shipping carton in two prominent locations Storage oscilloscope should be stored in a clean dry environment The following environmental characteristics apply for both shipping and storage oscilloscope not operating m Tempera
22. connect the oscilloscope channel selected in the table to the leveled sine wave generator Leveled sine wave Digitizing oscilloscope generator SO GO 2 Q Output p Quy 50 2 feedthrough terminator BNC cable Set the oscilloscope VOLTS DIV to 500 mV div Set the oscilloscope SEC DIV to 10 us div Set the leveled sine wave generator frequency to 50 KHz ca SEU Set the leveled sine wave generator output level so the peak to peak measurement is between 2 98 V and 3 02 V 7 Setthe leveled sine wave generator frequency to m 60 MHz if you are checking a TDS1002 2002 m 100 MHz if you are checking a TDS1012 2012 2014 m 200 MHz if you are checking a TDS2022 2024 8 Setthe oscilloscope SEC DIV to 10 ns div TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual 4 5 Performance Verification Check Sample Rate and Delay Time Accuracy 4 6 9 Check that the peak to peak measurement is 22 12 V 10 Disconnect the test setup 11 Repeat steps 1 through 10 until all input channels have been checked This test checks the time base accuracy 1 Set up the oscilloscope using the following steps Press menu button Select menu option Select setting DEFAULT SETUP CH 1 2 Connect the oscilloscope to the time mark generator as shown below Time mark Digitizing oscillosco
23. extensive self diagnostic routine at every power on Running the diagnostics from the Service menu will provide no additional information and therefore is not needed The menu selections are only used during manufacturing of the oscilloscope Follow these steps to troubleshoot the input connections only if the oscilloscope appears to function normally in every way However you have determined that an input signal is not getting into the oscilloscope as expected 1 Remove the rear case using the procedure Rear Case on page 6 10 2 Check that the coaxial connections to the back side of the BNC connectors are intact Use the DMM to measure continuity from the BNC connector to the end of the coaxial cable where it attaches to the main board TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual 6 43 Maintenance 3 Ifno problem is found and the trouble persists the main board is probably defective in some way that the internal diagnostics cannot detect Replace it Using the Error Log Failures that occur during the power up diagnostics or normal oscilloscope operation place an entry in the error log Accessing the error log The error log list can be accessed anytime by pushing the UTILITY button and selecting Error Log Table 6 3 lists the error codes and probable causes Table 6 3 List of error codes Error code Description Probable cause ODI Diagnostics
24. module refer to Figure 6 17 and follow these steps 1 Reconnect the front panel cable at J202 on the main board by pushing the cable straight down into the connector 2 Route the front panel cable through the opening in the internal assembly For more information see the procedure on page 6 21 3 Install the four screws to attach the front panel module to the internal assembly 4 Use the installation procedure for each module removed to reassemble the oscilloscope Internal assembly module J E e Front panel on A a ribbon cable 2 Ps J E Pos Front panel module Figure 6 17 Installing the front panel module TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual 6 27 Maintenance Keypad You will need a torque limiting Torx T 15 screwdriver for this procedure Removal To remove the switch keypad refer to Figure 6 18 and follow these steps 1 Remove the power button and rear case using the procedures on page 6 10 2 Remove the entire internal assembly from the front case using the procedure on page 6 17 3 Lift the keypad out of the front case CAUTION Keep the electrical contacts on the back of the keypad clean Skin oils and dust will inhibit good electrical contact Use care to avoid touching the electrical contacts Front case Figure 6 18 Removing and installing the keypad 6 28 TDS1000 and TDS2000 Series
25. pattern Depends upon Description Color No fixed pattern Depends upon with lt display data display data Pin 2 No fixed pattern Depends upon No fixed pattern Depends upon display data display data Pin 3 No fixed pattern Depends upon No fixed pattern Depends upon display data display data Pin 4 No fixed pattern Depends upon No fixed pattern Depends upon display data display data Pin 5 Not connected No fixed pattern Depends upon display data Pin 6 Not connected No fixed pattern Depends upon display data Pin 7 Not connected No fixed pattern Depends upon display data Pin 8 Not connected No fixed pattern Depends upon display data Pin 9 24 Vpc 26 5 Vpc Pin 10 Ground Ground Pin 11 5 Vpc 5 Vpc Pin 12 HI when display active HI when display active Pin 13 Data rate clock Data rate clock 1 36 MHz Square wave 1 36 MHz Square wave Pin 14 Line rate clock Line rate clock 17 kHz 500 ns high pulse from low 11 4 kHz 500 ns high pulse from low baseline baseline Pin 15 Frame rate clock Frame rate clock 70 Hz 750 ns high pulse from low 43 Hz 350 ns high pulse from low baseline baseline Pin 16 Lows High gt 2 4 V Pin 17 Ground Ground Pin 18 Ground Ground 1 Value varies with temperature contrast setting and display type 2 Frequency may vary slightly with software version 3 With monochrome display cable attached If no cable is attached def
26. very stable over time and should not require routine updates Before performing any procedure in this chapter first verify that the oscilloscope does not meet specifications Refer to the chapter Performance Verification to verify the specifications The equipment described in Table 5 1 or a suitable equivalent is required to complete these procedures Table 5 1 Required equipment Description Minimum requirements Examples DC Voltage Source 20 V to 20 V 0 196 accuracy Wavetek 9100 Universal Calibration System with Oscilloscope Calibration Module Option 250 Leveled Sinewave 60 kHz and 200 MHz 0 626 Fluke 5500A Multi product Generator amplitude accuracy Calibrator with Oscilloscope Calibration Option Option 5500A SC 50 Q BNC Cable BNC male to BNC male Tektronix part number 012 0482 00 1m 36 in long 50 Q BNC Cable two BNC male to BNC male Tektronix part number 012 0208 00 25 cm 10 in long 50 2 Feedthrough BNC male and female Tektronix part number 011 0049 01 Termination connectors TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual 5 1 Adjustment Procedures Table 5 1 Required equipment Cont Description Minimum requirements Examples Dual Banana to BNC Banana plugs to BNC female Tektronix part number 103 0090 00 Adapter BNCT One male and two female Tektronix part number 103 0030 00 BNC connectors 5 2 TDS1000 and TDS2000 Series Digi
27. waveforms turns off Service Mode and performs the same actions as the front panel DEFAULT SETUP button Service Diag Displays the service diagnostics menus Service Mode Off Disables the Service menu 3 Select Service Diag The following options appear Menu Comments Mfg Tests Displays a front panel simulation used to check that all front panel controls are operational Loop Diag Opens a menu that enables you to re run a subset of the power on self tests Peek Poke For engineering use only Clear Error Log Removes all Error Log entries from memory and sets the power cycle count to zero 4 Select Mfg Tests to start the front panel controls test The following options appear Menu Comments Test FP Displays a front panel simulation used to check the operation of all front panel controls All buttons must be pushed and all knobs must be turned in both directions before you can exit this test Test Screen Checks the display screen pixels with different patterns from each push of the button Contrast Allows you to check the display contrast operation across 100 of the hardware range TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual Maintenance Menu Comments Warmup Timer Ensures a ten minute warm up time for the oscilloscope before executing the calibration procedure Stop Test Exits the front panel test Test FP and the screen test
28. 0 pF 3 pF P2200 Probe 1X 10X Attenuation Supported Probe 1X 10X 100X 1000X Attenuation Factors TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual 1 1 Specifications Table 1 1 Oscilloscope specifications Cont Inputs Maximum Voltage Between Signal and Common at input BNC Channel to Channel Common Mode Rejection typical Channel to Channel Crosstalk Overvoltage Category Maximum Voltage CAT and CAT Il 300 Vnus CAT Ill 150 Vnus Derate at 20 dB decade above 100 kHz to 13 V peak AC at 3 MHz and above For non sinusoidal waveforms peak value must be less than 450 V Excursion above 300 V should be less than 100 ms duration RMS signal level including any DC component removed through AC coupling must be limited to 300 V If these values are exceeded damage to the oscilloscope may result TDS1002 and TDS2002 TDS1012 TDS2012 TDS2014 TDS2022 and TDS2024 100 1 at 60 Hz 100 1 at 60 Hz 20 1 at 30 MHz 20 1 at 50 MHz Measured on MATH Ch1 Ch2 waveform with test signal applied between signal and common of both channels and with the same VOLTS DIV and coupling settings on each channel Measured on MATH Ch3 Ch4 waveform for 4 channel models TDS1002 and TDS2002 TDS1012 TDS2012 and TDS2022 and TDS2024 TDS2014 100 1 at 30 MHz 100 1 at 50 MHz gt 100 1 at 100 MHz Measured on one channel with test signal applied between signal and common of the other cha
29. 000 Series Digital Storage Oscilloscopes Service Manual Maintenance Flip Feet You will need a pair of needle nose pliers to remove the flip feet Removal To remove the flip feet refer to Figure 6 3 and follow these steps 1 Place the oscilloscope face down on a soft surface such as an anti static mat 2 Grip the flip foot with the pliers as close to the notches as possible and squeeze gently on the foot 3 Twist slightly to swing one hinge free of the slot To remove foot squeeze at notches and swing one hinge free of slot To install foot place hinge of foot into one slot then swing other hinge into place Figure 6 3 Removing and installing the flip feet TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual 6 9 Maintenance Front Panel Knobs Power Button Rear Case Installation To install the flip feet refer to Figure 6 3 and follow these steps 1 Place the oscilloscope face down on a soft surface such as an anti static mat 2 Hold the flip foot with the smooth side facing down 3 Gently squeeze the foot so that the hinge on one side fits into the slot and twist slightly to snap into the slot on the other side Remove each front panel knob by firmly grasping the knob with pliers if necessary and pulling it away from the front panel NOTE Wrap the plier jaws with tape such as electrical to avoid marring the knob surface Install front panel k
30. 6 21 Main Board Module 00 cece ccc eee ee 6 22 Display MOdules 5 iere Gog ocala eed 6 24 Front Panel Module osse ober mem memet 6 26 me D Pee o eed 6 28 lusor PP 6 30 Troubleshooting i ig m ER EH ES 6 31 ii TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual Table of Contents Adjustment After Repair Required Tools and Equipment Troubleshooting Tree PROBE COMP Output aeaa ena eaaa a Hn Troubleshooting the Power Supply Troubleshooting the Display Troubleshooting the Backlight 0 0 Troubleshooting the Front Panel Troubleshooting the Main Board Running Diagnostics 5 cR RR rete Re ue ge Troubleshooting Input Using the Error Log i2 ce ete ere e n Repackaging Instructions esses nn Packaging iis eeu hee RI gat bere e REDE e ale Storage ECL Options Electrical Parts List Diagrams Replaceable Parts Parts Ordering Information Module Servicing vc sv RARE ER AES Using the Replaceable Parts List 0 0 0 oe cee eee Abbreviations e RA eu RE e a UE RR ETS
31. 6552 441 2289 00 SAFETY CONTROLLED 4 211 1143 00 4 SCREW PT K35 1 57 PAN HEAD T 15 TK2288 211 1143 00 5 343 1673 00 2 CLAMP CABLE CABLE TIE NYLON 6 6 COLOR NATURAL 06915 STL 250 3 01 6 119 6610 00 1 POWER SUPPLY CUSTOM TDS1000 2000 SERIES TK6430 119 6610 00 AC DC 85 275 VAC 45 440HZ IN 6VDC 0 7A 3 3VDC 1 5A 4VDC 0 8A 35V 0 015A OUT SAFETY CONTROLLED 7 366 0774 00 1 PUSH BUTTON POWER PC ABS TEXTURED TK6433 366 0774 00 8 211 0722 00 14 SCREW MACHINE 6 32 X 0 250 PNH STL CDPL T 15 OKBO1 OBD 9 211 1152 00 4 SCREW PT X 10M FLAT TOP PNH T15 STL ZINC PLT TK2288 3BE P8006 00 10 334 9262 04 1 MARKER IDENT LABEL MKD WARNING TO AVOID 80009 334 9262 04 ELECTRIC 3 765 X 3 990 0 010 POLY W ADHESIVE SAFETY CONTROLLED 11 348 1704 00 2 FOOT REAR SANTOPRENE BLACK TK6433 348 1704 00 12 202 0390 00 1 CASE REAR PC ABS PLASTIC BLEND TEK BLUE SAFETY 1K6433 202 0390 00 CONTROLLED 13 348 1703 00 2 FOOT FRONT FLIPMPC ABS SILVER GRAY TK6433 348 1703 00 14 650 4410 00 1 REAR CASE ASSY COVER W FEET amp HAN TK6433 650 4410 00 DLE TDS1000 TDS2000 15 671 5580 00 1 CIRCUIT BD ASSY MAIN 2 CH 60MHZ MONO TDS1002 80009 671 5580 00 671 5581 00 1 CIRCUIT BD ASSY MAIN 2 CH 100MHZ MONO TDS1012 80009 671 5581 00 671 5585 00 1 CIRCUIT BD ASSY MAIN 2 CH 60MHZ COLOR TDS2002 80009 671 5585 00 671 5586 00 1 CIRCUIT BD ASSY MAIN 2 CH 100MHZ COLOR TDS2012 80009 671 5586 00 671 5582 00 1 CIRCUIT BD ASSY MAIN 4 CH 100MHZ COLOR TDS2014 80009 671 5582 00
32. 71 0488 XX Korean 071 1073 XX 071 0491 XX Simplified Chinese 071 1071 XX 071 0489 XX Traditional Chinese 071 1072 XX 071 0490 XX Russian 071 1074 XX 071 0487 XX Programmer manual part number 071 1075 XX These manuals contain a language overlay for the front panel controls TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual xiii Preface Contacting Tektronix Phone Address Web site Sales support Service support Technical support 1 800 833 9200 Tektronix Inc Department or name if known 14200 SW Karl Braun Drive P O Box 500 Beaverton OR 97077 USA www tektronix com 1 800 833 9200 select option 1 1 800 833 9200 select option 2 Email techsupport tektronix com 1 800 833 9200 select option 3 1 503 627 2400 6 00 a m 5 00 p m Pacific time This phone number is toll free in North America After office hours please leave a voice mail message Outside North America contact a Tektronix sales office or distributor see the Tektronix web site for a list of offices Product End of Life Handling Components that Contain Mercury The cold cathode fluorescent tube located in the liquid crystal display backlight contains trace amounts of mercury When you are ready to reclaim the oscilloscope you must properly transfer it according to local regulations concerning mercury containing equipment or ship the oscilloscope to the Tektronix Recycling Operations
33. CAL STEP to load the calibration constant for step 1 Follow the screen prompts along with Table 5 2 for the remainder of the routine applying the proper signal for each step NOTE During some steps the oscilloscope may appear to be idle for several minutes while it is processing information internally You must wait for the screen prompt to continue 12 13 If any step in the procedure fails the procedure terminates Failure will result if an incorrect signal source is connected If this happens you must start the procedure over from the beginning If the procedure completes successfully a Pass message is displayed and the new adjustment takes effect Compensate the signal path by performing the self calibration routine Disconnect any probes or cables from the channel input connectors Then press the UTILITY button and select Do Self Cal to confirm that you are ready to proceed Disable the Service menu option by pushing the UTILITY front panel button and the Service and Service Mode Off option buttons TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual 5 5 Adjustment Procedures Table 5 2 Adjustment steps Step Step Two channel Four channel models models Signal Signal source setting Input Refer to the DC voltage setup 1 diagram 1 1 DC Voltage 1 0 0V CH1 through 2 2 DC Voltage 1 20 0 V
34. Channel 2 DC Gain Ac 5 mV div 33 6 mV 36 4 mV alo 200 mV div 1 358 V 1 442 V 2 V div 13 58 V 14 42 V Channel 3 DC Gain Ac 5 mV div 33 6 mV 36 4 mV RIS 200 mV div 1 358 V 1 442 V 2 V div 13 58 V 14 42 V Channel 4 DC Gain Ac 5 mV div 33 6 mV 36 4 mV ane 200 mV div 1 358 V 1 442 V 2 V div 13 58 V 14 42 V Channel 1 Bandwidth 2 12 V Channel 2 Bandwidth 2 12 V Channel 3 Bandwidth 242 V Channel 4 Bandwidth 242 V Sample Rate and Delay Time Accuracy 2 divs 2 divs Channel 1 Edge Trigger Sensitivity Stable trigger Channel 2 Edge Trigger Sensitivity Stable trigger Channel 3 Edge Trigger Sensitivity Stable trigger Channel 4 Edge Trigger Sensitivity Stable trigger External Edge Trigger Sensitivity Stable trigger 1 Channels 3 and 4 are only on four channel oscilloscopes 4 2 TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual Performance Verification Performance Verification Procedures Before beginning these procedures two conditions must first be met m The oscilloscope must have been operating continuously for ten minutes within the operating temperature range specified W You must perform the Self Calibration operation described below If the ambient temperature changes by more than 5 C you must perform the Self Calibration operation again The time required to complete the entire procedure is approximately one hour WARNING Some procedures use
35. DS2000 Series Digital Storage Oscilloscopes Service Manual Theory of Operation Processing and Display processing and display system consists of the display ASIC DRAM and System system oscillator Digitized acquisition samples are received by the display ASIC and stored in DRAM Once data are received by the display ASIC various corrections are applied display rasterization is performed and the waveform is placed into a display buffer At the same time the waveform is being read from the display buffers and written to the LCD Additional circuitry in the display ASIC supports scanning the front panel handling DRAM refresh providing the processor clock and performing various memory mapping tasks required by all elementary microprocessor based systems In a four channel system the two display ASICs are interconnected so that one ASIC may provide display information for the second The processing and display system handles some of the computational tasks Other tasks are performed by the processor system Since all array processing is performed in the processing and display system no computations can be performed that involve data from two different channel sets Thus subtracting channel 3 data from channel 2 is prohibited Channel 1 and Channel 2 data may be combined in all of the supported ways Input Signal Interface connectors are mounted on the main board for all signal inputs The signal inputs are compatible with th
36. Digital Storage Oscilloscopes Service Manual Maintenance Installation To install the switch keypad refer to Figure 6 18 and follow these steps 1 Place the front case face down on a soft surface 2 Align the switch keypad into the front case using the guide posts and the holes in the keypad CAUTION Keep the electrical contacts on the back of the switch pad clean Skin oils and dust will inhibit good electrical contact 3 Check that all buttons are properly seated into place before proceeding 4 Place the entire internal assembly into the front case 5 Use the installation procedure for each module removed to reassemble the oscilloscope TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual 6 29 Maintenance Front Case You will need a torque limiting Torx T 15 screwdriver for this procedure Removal To remove the front case follow these steps 1 Remove the power button and rear case using the procedures on page 6 10 2 Remove the entire internal assembly from the front case using the procedure on page 6 17 3 Remove the switch keypad using the procedure on page 6 28 Installation To install the front case refer to Figure 6 9 on page 6 17 and follow these steps 1 Place the switch keypad into the front case 2 Place the entire internal assembly into the front case 3 Use the installation procedure for each module removed to reassemble the oscilloscope 6 30 TDS1000 and
37. E BACK SAFETY CONTROLLED TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual Mfr code TK6431 TK6431 22670 22670 22670 TK6433 TK6433 TK6433 80009 80009 80009 TK1163 TK1163 TK1163 TK1163 80009 80009 80009 80009 80009 80009 80009 Mfr part num ber 679 5439 00 679 5440 00 260 2763 00 260 2764 00 260 2765 00 348 1525 00 202 0388 00 202 0389 00 335 0714 00 335 0715 00 335 0716 00 366 0771 00 366 0771 00 366 0772 00 366 0772 00 335 0725 00 335 0726 00 335 0708 00 335 0709 00 335 0710 00 335 0711 00 335 0712 00 10 5 Replaceable Parts Figure 10 1 Exploded diagram TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual 10 6 Replaceable Parts Table 10 4 lists the replaceable standard accessories for the oscilloscope and the instrument options that included them in the original shipment These accessories are not shown in Figure 10 1 Table 10 4 Replaceable standard accessories Description of accessory Passive 1X 10X probes Tektronix part number or nomenclature P2200 Replacement user English 071 1064 XX French 071 1065 XX Italian 071 1066 XX German 071 1067 XX Spanish 071 1068 XX Japanese 071 1069 XX Portuguese 071 1070 XX Simplified Chinese 071 1071 XX Traditional Chinese 071 1072 XX Korean 071 1073 XX Russian 071 1074 XX Replacement power cords
38. ECONOMIC AND TECHNOLOGY DEVELOPEMENT ZONE 4 5F GUANGYAO BUILDING TORCH HI TECH INDUSTRIAL DEVELOPMENT ZONE 85 FUMING ROAD ECONOMIC ZONE ZHANGPU TOWN KUNSHAN ECONOMIC AND TECHNOLOGICAL DEVELOPMENT ZONE BLOCK 18 19 1ST HUAI DE IND DISTR FU YONG BAO AN The table titled Manufacturers cross index shows codes names and addresses of manufacturers or vendors of components listed in the parts list City state zip code CHICAGO IL 60646 PORTLAND OR 97214 4657 SEATTLE WA 98119 2783 BEAVERTON OR 97077 0001 TIGARD OR 97224 BELVIDERE IL 61008 XIANGHE HEBEI PROV CN 065402 XIAMEN FUJIAN PROV CN 361006 KUHSHAN JIANGSU CN KUNSHAN JIANGSU PROV CN 215321 SHEN ZHEN CN 10 3 Replaceable Parts Table 10 3 Replaceable parts list Fig amp index Tektronix part Serialno Serial no Mfr Mfr part num number number effective discontd Qty amp description code ber 10 1 650 4348 00 1 FRAME ASSEMBLY DISPLAY MONO TDS1000 80009 650 4348 00 650 4349 00 1 FRAME ASSEMBLY DISPLAY COLOR TDS2000 80009 650 4349 00 2 174 4672 00 1 CA ASSY SP DATA MONO TDS1000 6 0 L TK6549 174 4672 00 174 4673 00 1 CA ASSY SP DATA COLOR TDS2000 7 0 L TK6549 174 4673 00 3 441 2287 00 1 CHASSIS ASSY 2 CH MONO TDS1000 STEEL TK6552 441 2287 00 SAFETY CONTROLLED 441 2288 00 1 CHASSIS ASSY 2 CH COLOR TDS2000 STEEL TK6552 441 2288 00 SAFETY CONTROLLED 441 2289 00 1 CHASSIS ASSY 4 CH COLOR TDS2000 STEEL TK
39. IB and Centronics ports with the optional TDS2CMA Commu nications Extension Module User interface in ten user selectable languages TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual Operating Information Installation Power Cord Use only power cords designed for your oscilloscope Use a power source that delivers 90 to 264 VACRms 45 to 66 Hz If you have a 400 Hz power source it must deliver 90 to 132 VACRms 360 to 440 Hz Refer to page 10 7 in the Replaceable Parts chapter for a list of power cords available from Tektronix All power cords must be rated for 3 Amps 3 wire and have an 18 AWG 1 0 mm Safety Ground lead or larger Securing cable Power cable Figure 2 1 Routing the power cord and security cable Security Loop Use the built in cable channels to secure both your oscilloscope and extension module to your location TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual 2 3 Operating Information Extension Modules You can increase the feature set of your oscilloscope by inserting an extension module Refer to page 10 7 for more information Figure 2 2 shows the proper way to install and remove a module without bending the connecting pins For more information on extension modules see your oscilloscope user manual extension module and the oscilloscope Do not operate your instrument with the CAUTION Electrostatic discharge ESD can
40. Mfr Code to Manufacturer Cross Index TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual GN ON GN ON ONO BHAA HA HA WW W WH W NNNDPWWWODDNNRP RR Table of Contents List of Figures Figure 2 1 Figure 2 2 Figure 3 1 Figure 3 2 Figure 5 1 Figure 6 1 Figure 6 2 Figure 6 3 Figure 6 4 Figure 6 5 Figure 6 6 Figure 6 7 Figure 6 8 Figure 6 9 Figure 6 13 Figure 6 14 Figure 6 15 Figure 6 16 Figure 6 17 Figure 6 18 Figure 6 19 Figure 6 20 Figure 6 21 Figure 6 22 Adjustment setups Removing the rear feet Installing the rear feet Removing and installing the flip feet Removing and installing the rear case Aligning the oscilloscope rear case Removing and installing the front feet Removing the power supply module Installing the power supply module Routing the power cord and security cable Installing and removing an extension module Module level block diagram two channel Module level block diagram four channel Removing the display cable Installing the display cable Removing and installing the internal assembly Figure 6 10 Figure 6 11 Figure 6 12 Removing and installing the front panel cable Main board removal Removing the display module Installing the display module Removing the front panel module Installing the
41. ONO TDS1002 TDS1012 SWITCH KEYPAD ELASTOMERIC 2 CHANNEL COLOR TDS2002 TDS2012 TDS2022 SWITCH KEYPAD ELASTOMERIC 4 CHANNEL COLOR TDS2014 TDS2024 FOOT FRONT SANTOPRENE BLACK CASE FRONT 2 CH PC ABS PLASTIC BLEND SILVER GRAY SAFETY CONTROLLED CASE FRONT 4 CH OB CAP 2 CH PC ABS PLASTIC BLEND SILVER GRAY SAFETY CONTROLLED MARKER IDENT LABEL FRONT PANEL 2 CH MONO 5 2 X 5 66 W ADHESIVE BACK SAFETY CONTROLLED TDS1002 TDS1012 MARKER IDENT LABEL FRONT PANEL 2 CH COLOR 5 2 X 5 66 W ADHESIVE BACK SAFETY CONTROLLED TDS2002 TDS2012 TDS2022 MARKER IDENT LABEL FRONT PANEL 4 CH COLOR 5 20 X 5 975 W ADHESIVE BACK SAFETY CONTROLLED TDS2014 TDS2024 KNPC ABS SILVER GRAY 0 650 DIA X 0 520 KNOB CAP 4 CH PC ABS SILVER GRAY 0 650 DIA X 0 520 H KNOB CAP 2 CH PC ABS SIVER GRAY 0 425 DIA X 0 520 H KNOB CAP 4 CH PC ABS SIVER GRAY 0 425 DIA X 0 520 H MARKER IDENT LABEL MKD TDS1002 PC FILM LEXAN W ADHESIVE BACK SAFETY CONTROLLED MARKER IDENT LABEL MKD TDS1012 PC FILM LEXAN W ADHESIVE BACK SAFETY CONTROLLED MARKER IDENT LABEL MKD TDS2002 PC FILM LEXAN W ADHESIVE BACK SAFETY CONTROLLED MARKER IDENT LABEL MKD TDS2012 PC FILM LEXAN W ADHESIVE BACK SAFETY CONTROLLED MARKER IDENT LABEL MKD TDS2014 PC FILM LEXAN W ADHESIVE BACK SAFETY CONTROLLED MARKER IDENT LABEL MKD TDS2022 PC FILM LEXAN W ADHESIVE BACK SAFETY CONTOLLED MARKER IDENT LABEL MKD TDS2024 PC FILM LEXAN W ADHESIV
42. OR A PARTICULAR PURPOSE TEKTRONIX RESPONSIBILITY TO REPAIR OR REPLACE DEFECTIVE PRODUCTS IS THE SOLE AND EXCLUSIVE REMEDY PROVIDED TO THE CUSTOMER FOR BREACH OF THIS WARRANTY TEKTRONIX AND ITS VENDORS WILL NOT BE LIABLE FOR ANY INDIRECT SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES IRRESPECTIVE OF WHETHER TEKTRONIX OR THE VENDOR HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES EES A Table of Contents General Safety Summary vii Service Safety Summary xi Preface asia care eine Seah als whe xiii Related Manuals e e due a eee eed ls xiii Contacting Tektronix sses eu osse eue eae e ar ee els xiv Product End of Life Handling 0 0 eee eee eee eee xiv Specifications Operating Information G n ral shaders uds ed et aaa ade PR US 2 2 Installation a gg eee Ra nen duse ee uenaapdee ated 2 3 Power Cord ob esser Aportes woe do e Se oe dates 2 3 security Loop une pE TUE TNI Sa ER UE 2 3 Extension Modules oov teres Sa eg atet 2 4 Functional Check aspere gg ete Ba se UUERUR UU RI aESQr ete 2 2 5 Self Calibration gee re wea edes uses tren dosi e tte mdr need 2 6 Default Setup in reen baie orc RUE DER TREO o ENrre qued mr e ed 2 6 Theory of Operation Main Board i cere Rees Mate Jol eee Se god e
43. Service Manual Tektronix f TDS1000 and TDS2000 Series Digital Storage Oscilloscopes 071 1076 01 This document supports firmware version 1 00 and above Warning The servicing instructions are for use by qualified personnel only To avoid personal injury do not perform any servicing unless you are qualified to do so Refer to all safety summaries prior to performing service www tektronix com Copyright Tektronix Inc All rights reserved Tektronix products are covered by U S and foreign patents issued and pending Information in this publication supercedes that in all previously published material Specifications and price change privileges reserved Tektronix Inc P O Box 500 Beaverton OR 97077 TEKTRONIX and TEK are registered trademarks of Tektronix Inc WARRANTY Tektronix warrants that the products that it manufactures and sells will be free from defects in materials and workmanship for a period of three 3 years from the date of purchase from an authorized Tektronix distributor If any such product proves defective during this warranty period Tektronix at its option either will repair the defective product without charge for parts and labor or will provide a replacement in exchange for the defective product Batteries are excluded from this warranty In order to obtain service under this warranty Customer must notify Tektronix of the defect before the expiration of the warranty period and make suitabl
44. Service Manual 6 3 Maintenance 6 4 Cleaning Procedure Interior To clean the oscilloscope interior perform the following steps 1 Blow off dust with dry low pressure deionized air approximately 9 psi 2 Remove any remaining dust with a lint free cloth dampened in isopropyl alcohol 75 solution and then wipe with a lint free cloth dampened with warm deionized water A cotton tipped applicator is useful for cleaning in narrow spaces and on circuit boards STOP If after performing steps 1 and 2 a module is clean upon inspection skip steps 3 and 4 Proceed with step 5 If steps 1 and 2 do not remove all the dust or dirt all modules in the oscilloscope except the Display Module and Front Panel Module may be spray washed using a solution of 75 isopropyl alcohol Extensive cleaning of the Display Module is difficult because water must not be trapped between the display shield and the display The polarizers integrated into the display degrade with long term exposure to water The display shield and display must be replaced as an assembly if significant moisture or debris become trapped inside Cotton tipped applicators and lint free rags moistened in isopropyl alcohol and or deionized water offer the best cleaning with the least opportunity for damage to the assembly The Front Panel module can be damaged by deposition of film or debris inside the knob encoders To avoid this care must be taken to not drip liquid or blo
45. Storage Oscilloscopes Service Manual 1 1 1 7 1 8 1 9 1 9 2 6 5 1 5 6 6 3 6 6 6 44 10 2 10 3 10 4 10 7 10 7 Table of Contents vi TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual a Ja gt General Safety Summary Injury Precautions Product Damage Precautions Review the following safety precautions to avoid injury and prevent damage to this product or any products connected to it Only qualified personnel should perform service procedures Use Proper Power Cord To avoid fire hazard use only the power cord specified for this product Avoid Electric Overload To avoid electric shock or fire hazard do not apply a voltage to a terminal that is outside the range specified for that terminal Avoid Overvoltage To avoid electric shock or fire hazard do not apply potential to any terminal including the common terminal that varies from ground by more than the maximum rating for that terminal Avoid Electric Shock To avoid injury or loss of life do not connect or disconnect probes or test leads while they are connected to a voltage source Ground the Product This product is grounded through the grounding conductor of the power cord To avoid electric shock the grounding conductor must be connected to earth ground Before making connections to the input or output terminals of the product ensure that the product is properly grounded Connect the Probe Properly
46. TA 12 P Front Panel Scan Data line A No fixed pattern Stable when triggered from FPCLR 12 P Pattern depends upon rotation of knobs being scanned 5 GND 0 V ground 6 FPTHERMSTR P Front Panel Temp Sense About 2 Vpc depending upon temperature contrast setting and display type PWR3 3V 3 3 Vpc 8 FPTHERMGND P Temp Sense Return Ground TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual 6 41 Maintenance 6 42 Signal at J202 2 channel models or J1 4 channel models Description 9 GND 0 V ground 10 FPDATA 34 P Front Panel Scan Data line B No fixed pattern Stable when triggered from FPCLR 34 P Pattern depends upon rotation of knobs being scanned 11 FPCLR 34 P Front Panel Clock line B 405 kHz High with 50 ns pulses going low Each clock after FPCLR 34 P increments the scan location by one 12 FPCLK 34 P Clear Front Panel Scan line B 6 44 kHz Low pulsing high with 50 ns pulses Determines beginning of a scan sequence for second half of front panel 1 Unused and open on two channel models Unusedandtied low on two channel models 10 If all of the signals are present the front panel board is probably defective Replace it 11 If some or all of the signals are missing continue with step 12 12 Turn off the oscilloscope and disconnect the front panel cable from the main board at connector J202 two channel models or J1 fo
47. Vp p 87 Sinewave Generator 50 Ohm BWL 5 Vp p 88 Sinewave Generator 50 Ohm BWL 1 6 Vp p 89 Edge 50 Ohm Refer to Edge setup 1 kHz 0 to 800 mV diagram TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual Adjustment Procedures Table 5 2 Adjustment steps Cont Step Step Two channel Four channel models models Signal Signal source setting Input NA 90 Sinewave Generator 50 Ohm 5 kHz 1 Vp p CH4 91 Sinewave Generator 50 Ohm 1 MHz 100 mVp p 92 Sinewave Generator 50 Ohm 1 MHz 1 Vp p 93 Sinewave Generator 50 Ohm 50 kHz 1 Vp p 94 Sinewave Generator 50 Ohm 20 MHz 1 Vp p 95 Sinewave Generator 50 Ohm BWL 25 mVp p 96 Sinewave Generator 50 Ohm BWL 50 mVp p 97 Sinewave Generator 50 Ohm BWL 100 98 Sinewave Generator 50 Ohm BWL 250 mVp 99 Sinewave Generator 50 Ohm BWL 500 100 Sinewave Generator 50 Ohm BWL 1 Vp p 101 Sinewave Generator 50 Ohm 5 kHz 2 5 Vp p 102 Sinewave Generator 50 Ohm 1 MHz 2 5 Vp p 103 Sinewave Generator 50 Ohm 50 kHz 2 5 Vp p 104 Sinewave Generator 50 Ohm 20 MHz 2 5 Vp p 105 Sinewave Generator 50 Ohm BWL 2 5 Vp p 106 Sinewave Generator 50 Ohm BWL 5 Vp p 5 10 TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual ONERE Maintenance This chapter contains the information needed to do periodic and corrective maintenance on the oscilloscope The f
48. ZONTAL Window Main Trig Knob Level POSITION 0 00 s SEC DIV 500 us Window Zone 50 us TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual Operating Information Table 2 1 Default settings Cont Menu or system Option button or knob Default setting MATH Operation CH1 CH2 FFT operation Source CH1 Window Hanning FFT Zoom X1 MEASURE Source CH1 Type None TRIGGER Mode Type Edge Edge TRIGGER Type Edge Source CH1 Slope Rising Mode Auto Coupling DC LEVEL 0 00 V Video TRIGGER Type Video Source CH1 Polarity Normal Sync All Lines Standard NTSC Pulse Width TRIGGER Type Pulse Source CH1 When Set Pulse Width 1 00 ms Polarity Positive Mode Auto Coupling DC Vertical system Coupling DC all channels BW Limi Of Volts Div Coarse Probe 10X Invert Off POSITION 0 00 divs 0 00 V VOLTS DIV 1 00 V TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual Operating Information 2 8 The DEFAULT SETUP button does not reset the following Language option Saved setup files Saved reference waveform files Display contrast Calibration data Printer setup RS 232 setup GPIB setup TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual een nes Theory of Operation This chapter describes the electrical operation of the TDS1000 and TDS2000 series oscilloscopes t
49. afety Summary and Service Safety Summary found at the beginning of this manual Always disconnect the power cord before disassembling any portion of the oscilloscope To prevent damage to electrical components read Preventing ESD on page 6 1 m See Figure 10 1 on page 10 6 for an overview of how the entire oscilloscope is assembled m Read the Summary of Procedures on page 6 6 to understand which procedure to use to access a given module Then read Tools Required on page 6 6 for a list of tools needed to remove and install modules in the oscilloscope m Ifyou are disassembling the oscilloscope for cleaning refer to Inspection and Cleaning on page 6 2 for cleaning instructions The Mechanical Parts List chapter provides a list of all replaceable modules Any electrical or mechanical module assembly or part listed in the parts list is referred to as a module TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual 6 5 Maintenance Summary of Procedures Complete disassembly is best achieved by following the procedures in the order given in Table 6 2 Table 6 2 List of procedures Procedure Begins on page Rear Feet 6 7 Flip Feet 6 9 Front Panel Knobs 6 10 Power Button 6 10 Rear Case 6 10 Front Feet 6 14 Power Supply Module 6 15 Internal Assembly 6 17 Display Cable 6 19 Front Panel Cable 6 21 Main Board Module 6 22 Display Module 6 24 Front Panel Module 6 26
50. al SET LEVEL TO 50 typical Default Settings Video Trigger Sensitivity Video Trigger Type typical Coupling AC NOISE REJ HF REJ LF REJ Source CH1 CH2 CH3 and CH4 EXT EXT 5 Sensitivity Same as DC at 50 Hz and above Reduces the DC coupled trigger sensitivity by 2 times for gt 10 mv div to 5 V div Same as the DC coupled limit from DC to 7 kHz attenuates signals above 80 kHz Same as the DC coupled limits for frequencies above 300 kHz attenuates signals below 300 kHz Range 8 divisions from center of screen 1 6V 8 V Accuracies are for signals having rise and fall times 20 ns Source Internal EXT EXT 5 Operates with input signals 50 Hz Accuracy 0 2 div x volts div within 4 divisions from center screen 6 of setting 40 mV 6 of setting 200 mV Coupling is AC and Auto except for a single sequence acquisition Composite video signal Source Range Internal Pk pk amplitude of 2 divisions EXT 400 mV EXT 5 2V Signal Formats and Field Rates Video Trigger Type Supports NTSC PAL and SECAM broadcast systems for any field or any line Holdoff Range 500 ns to 10 s TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual 1 5 Specifications Table 1 1 Oscilloscope specifications Cont Pulse Width Trigger Pulse Width Trigger modes Pulse Width Trigger Point Pulse Width Range Pulse Width Resolution Equal G
51. ar case using the procedure Rear Case on page 6 10 2 Use the test oscilloscope to measure the voltages from the power supply module at J101 on the main board module The table below lists the voltages you should expect to see Maximum J101 J101 Current power return Derived Supply Voltage range Draw pins pins supplies 35 V 30 Vpc to 40 Vpc floating 15 mA 1 2 28 V LCD Pin 2 connected to 3 3 V on the main board 6 V 5 5 V to 6 5 V 0 7 A 4 3 5 8 5V 10 3 3 V 3 0 V to 3 6 V Requires 1 5A 6 7 3 5 8 3 3 V 2 5 V minimum load to maintain 10 regulation 4 V 5 0 V to 3 5 V 0 8 A 9 3 5 8 2 5 V 10 Line trigger 2 V to 6 V open circuit 1 11 3 5 8 Line trigger 10 1 diode drop when at tached to the main board TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual 6 35 Maintenance Supply Backlight mono chrome or color Voltage range Maximum Current Draw J101 power pins NA J101 return pins NA Derived supplies NA With 3 W minimum load still functions with no load 3 Ifall of the voltages are present the main board is probably defective Replace it 4 Ifall or some of the voltages are missing turn off the oscilloscope and disconnect the cable at connector J101 on the main board module 5 Turn on the oscilloscope and check the voltages at the loose end of the cable disconnected from J101 c
52. assembly from the front case using the procedure on page 6 17 3 Disconnect the display cable using the procedure on page 6 19 4 Disconnect the backlight cable from the power supply module 5 Remove the four screws attaching the display module to the internal assembly The location of the screws as shown in Figure 6 14 will vary between the color and monochrome displays CAUTION The display shield is attached to the display module Removing the shield will destroy the attaching gasket Power supply module Backlight cable Internal assembly Main board Display 2 Display module e ribbon cable Figure 6 14 Removing the display module 6 24 TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual Maintenance Installation To install the display module refer to Figure 6 15 and follow these steps 1 Reconnect the display cable at J201 on the main board by pushing the cable straight down into the connector Route the display ribbon cable through the opening in the chassis For more information see the display cable procedure on page 6 19 Route the backlight cable through the opening in the internal assembly Install the four screws to attach the display module to the internal assembly The location of the screws will vary between color and monochrome displays Reconnect the backlight cable to the power supply module Connect to the black socket for a
53. ault condition is High color TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual 6 37 Maintenance Troubleshooting the Backlight A 6 38 If all the signals are present the display module is probably defective Replace it If all or some of the signals are missing turn off the oscilloscope and disconnect the display cable at J201 on the main board Carefully pull the cable straight up from the connector to avoid damage Turn on the oscilloscope Probe the pins of J201 checking for the same signals as in step 3 If any of the signals are missing the main board module is probably defective Replace it To troubleshoot a nonfunctional backlight follow these steps Remove the rear case using the procedure Rear Case on page 6 10 2 Turn on the oscilloscope WARNING To avoid electrical shock do not touch the backlight connectors on the power supply module See Figure 6 22 for the location of the connectors Typically the monochrome connector is black and the color connector is white 3 Set the test oscilloscope with a 100X probe to measure a 1270 Vpk pk 450 Vrms signal at approximately 50 kHz Attach the probe ground lead to the ground lug on the AC line connector and the probe tip to the one of the leads on the relevant monochrome or color backlight connector as shown in Figure 6 22 Record the voltage of the signal Attach the probe tip to the other lead on the backli
54. ccurs inside the front panel IC All key debouncing is handled in the display ASIC on the main board TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual Theory of Operation Four Channel front panel board of the four channel units is effectively two panels in Oscilloscopes parallel The left side of the board is largely handled by the display ASIC for channels 1 and 2 The right side of the board is handled by the channel 3 and 4 ASIC Separate front panel ICs support these data paths LEDs The LEDs are lighted to indicate an alternative use for the associated front panel knob For more information see the User Manual for this oscilloscope The LEDs are controlled by latching the value of the Channel 1 2 front panel scan counter when the appropriate scan value is set Extension Modules Optional extension modules add the capability for the microprocessor to interface with IEEE 488 GPIB controllers and RS 232 controllers and provide a PC like parallel printer interface These modules contain the necessary chips to provide standard RS 232 and IEEE 488 states The parallel port interface is controlled by software without significant hardware assistance TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual 3 7 Theory of Operation 3 8 TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual Equipment Required Sn ae Performance Verification This chapter conta
55. ce Installation To install the internal assembly refer to Figure 6 9 and follow these steps 1 Use the installation procedure for each module removed to reassemble the oscilloscope 2 Place the internal assembly into the front case 3 Install the four screws to attach the internal assembly to the front case 6 18 TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual Maintenance Display Cable You will need a torque limiting Torx T 15 screwdriver and pliers for this procedure Removal To remove the display cable refer to Figure 6 10 and follow these steps 1 Remove the power button and rear case using the procedures on page 6 10 2 Untwist the cable tie to release the display cable 3 Disconnect the display cable at J201 on the main board by pulling straight up from the connector 4 Disconnect the display cable on the display module by pulling it through the horizontal slot on the chassis 7 Display cable Display cable slot on the chassis Figure 6 10 Removing the display cable TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual 6 19 Maintenance Installation To install the display cable refer to Figure 6 11 and follow these steps 1 Remove the display module using the procedure on page 6 24 2 Attach the display cable to the appropriate connector on the display module at the location shown in Figure 6 11 12 pin for the monochrome display
56. damage components in the extension module connector exposed Module release tab Remove extension module Install extension module Figure 2 2 Installing and removing an extension module 2 4 TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual Operating Information Functional Check ON OFF button PASSED Perform this quick functional check to verify that your oscilloscope is operating correctly Turn on the oscilloscope Wait until the display shows that all power on tests passed Push the DEFAULT SETUP button The default Probe menu attenuation setting is 10X PROBE COMP Q OOO CH1 O O 2 Set the switch to 10X on the P2200 probe and connect the oscilloscope probe to channel 1 To do this align the slot in the probe connector with the key on the CH1 BNC push to connect and twist to the right to lock the probe in place Attach the probe tip and reference lead to the PROBE COMP connectors AUTO SET Push the AUTOSET button Within a few seconds you should see a square wave in the display approximately 5 V at 1 kHz peak to peak Move the probe to the CH2 BNC Repeat step 3 For four channel models repeat step 3 for CH3 and CH4 A similar test described below can be performed on the EXT TRIG connector although the amplitude scale factor is undefined Connect the probe to the EXT TRIG BNC Attach the probe tip and reference lead to t
57. e 3 4 Acquisition System iae sce eis erre mer rea erue er eee de 3 4 Processing and Display System 3 5 Input Signal Interface 0 3 5 Probe Compensation 22 22 cece eee eee eee 3 5 Exiernal Trigger ceste ere ere res dae del ogra aval elev ee tds 3 5 Main Board Power tis ee erbe rer E ese eer 3 5 Power Supply 2o tre rte ertet er eere de ace tec 3 6 Display Module erre iet rer t eas dre rhe tc eee Sg Bee 3 6 Front Panel ette tee RA beg spere de lace i Bees 3 6 Two channel Oscilloscope 3 6 Four channel 3 7 EEDs 4t ere eere eti ecol eg drea dur toca res odore e a 3 7 Extension Modules reet ehh eec e Ue 3 7 Performance Verification Equipment Required uere eere eer I xev ee x I te 4 1 Test Record se iu 4 2 Performance Verification Procedures 4 3 TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual i Table of Contents SOLE Test oce um uae Stave sate dite aides ates Te eb ees 4 3 Self Calibration 342604 6s dea a cae aet eee heed o ba ei Rs 4 3 Check DC Gain Accuracy trasos 4 3 Check Bandwidth ocsi sore ere t re 4 5 Check Sample Rate and Delay Time Accuracy 4 6 Check Edge Trigger Sensitivity
58. e EXT TRIG input has an abbreviated version of this path lacking some of the attenuator settings and the AC coupling switch The amplifier ASIC contains buffers and variable gain amplifiers as well as filters that provide 20 MHz bandwidth limiting The task of the amplifier ASIC is to convert from a 1 MQ single ended environment in the front end to a much lower impedance differential and thus less noise sensitive environment for the acquisition process The amplifier ASIC assures that the input signal is amplified to approximately the correct level to allow the fullest possible use of the digitizer The acquisition ASIC contains samplers and peak detectors for each input channel a common amplifier an A D converter and the trigger logic The digitized waveform samples are transferred to the processing and display ASIC In four channel systems the two acquisition ASICs are interconnected so that a trigger on one ASIC can cause a trigger on the other The processor system adds the microprocessor and flash PROM to the processing and display system The processor system interprets the front panel control changes detected by the display ASIC provides control parameters based upon user setting requests computes waveform measurements and manages the extension module interface Saved setups waveforms and calibration constants are stored in nonvolatile memory The processor system shares DRAM with the display system TDS1000 and T
59. e arrangements for the performance of service Customer shall be responsible for packaging and shipping the defective product to the service center designated by Tektronix shipping charges prepaid and with a copy of customer proof of purchase Tektronix shall pay for the return of the product to Customer if the shipment is to a location within the country in which the Tektronix service center is located Customer shall be responsible for paying all shipping charges duties taxes and any other charges for products returned to any other locations This warranty shall not apply to any defect failure or damage caused by improper use or improper or inadequate maintenance and care Tektronix shall not be obligated to furnish service under this warranty a to repair damage resulting from attempts by personnel other than Tektronix representatives to install repair or service the product b to repair damage resulting from improper use or connection to incompatible equipment c to repair any damage or malfunction caused by the use of non Tektronix supplies or d to service a product that has been modified or integrated with other products when the effect of such modification or integration increases the time or difficulty of servicing the product THIS WARRANTY IS GIVEN BY TEKTRONIX WITH RESPECT TO THE LISTED PRODUCTS IN LIEU OF ANY OTHER WARRANTIES EXPRESS OR IMPLIED TEKTRONIX AND ITS VENDORS DISCLAIM ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS F
60. e supplied P2200 probes Probe Compensation PROBE COMP and ground terminals are provided for probe adjustment External Trigger EXT TRIG channel is processed on the chain containing the highest numbered normal input channel Main Board Power To support various functions on the main board a number of secondary power supplies are generated For the amplifier and acquisitions ASICS the main board creates 2 5 V and 2 5 V supply The 42 5 V supply is derived from the 3 3 V logic supply The 2 5 V supply is derived from the 4 V supply A three terminal regulator provides 5 V for option modules and the LCD display An additional power supply provides the LCD bias voltage which ranges from 19 V to 28 V depending on contrast setting and display type This 28 V supply has a temperature sensor on the front panel board that varies the output voltage of the supply to maintain contrast over a wide temperature range TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual 3 5 Theory of Operation Power Supply Display Module Front Panel Two Channel Oscilloscopes 3 6 The main power supply module for the TDS1000 and TDS2000 series oscilloscopes is a wide input range universal supply It is capable of providing about 17 W of power for the oscilloscope while allowing the input to run from about 90 V to 264 V Input frequency ranges from 47 Hz to 440 Hz which allows operation in virtually all coun
61. ect menu option Select setting TRIGGER Slope Rising 15 Disconnect the test setup 16 Repeat steps 1 through 15 until all input channels have been checked TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual Performance Verification Check External Edge This test checks the edge trigger sensitivity for the external trigger Tigger Sensitivity 1 Set up the oscilloscope using the following steps Press menu button Select menu option Select setting DEFAULT SETUP CH 1 Probe 1X TRIGGER Source Ext Mode ACQUIRE Sample MEASURE Source CH1 ye PPR 2 Connect the oscilloscope to the leveled sine wave generator as shown below Leveled sine wave generator Digitizing oscilloscope S S 500 Output 200 Ose feedthrough m 1 d B terminator BNC BNC cable cable BNC T connector 3 Setthe leveled sine wave generator frequency to m 60 MHz if you are checking a TDS1002 2002 100 MHz if you are checking a TDS1012 2012 2014 m 200 MHz if you are checking TDS2022 2024 4 Setthe oscilloscope VOLTS DIV to 100 mV div 5 Set the oscilloscope SEC DIV to 10 ns div 6 Set the leveled sine wave generator output level to approximately 200 mVp p so that the measured amplitude is approximately 200 mV The measured amplitude can fluctuate around 200 mV TDS1000 and TDS2000 Series Digital Storage Oscilloscope
62. eted Pulse Width Trigger mode The oscilloscope counts pulses of significant magnitude inside the 250 ms measurement window that qualify as triggerable events such as narrow pulses in a PWM pulse train if set to mode and the width is set to a relatively small time Edge Trigger mode The oscilloscope counts all edges of sufficient magnitude and correct polarity Video Trigger mode The Frequency Counter does not operate Voltage difference between cursors AV Time difference between cursors AT Reciprocal of AT in Hertz 1 AT Automatic Measurements Frequency Period Mean Pk Pk Cycle RMS Min Max Rise Time Fall Time Pos Width Neg Width 1 6 TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual Specifications Table 1 2 Oscilloscope general specifications Display Display Type Display Resolution Display Contrast Backlight Intensity typical Probe Compensator Output Output Voltage typical Frequency typical Power Source Source Voltage Power Consumption Fuse Environmental Temperature 145 mm 5 7 in diagonal liquid crystal 320 horizontal by 240 vertical pixels Adjustable temperature compensated 65 cd m 5 V into 1 MQ load 1 kHz 100 120 VACRnys 10 from 45 Hz through 440 Hz CAT 120 240 VACRnys 10 from 45 Hz through 66 Hz CAT Less than 30 W 1A T rating 250 V Operating Nonoperating 0 C to 50 C 32 F to 122 F
63. front panel module Removing and installing the keypad Oscilloscope troubleshooting tree 1 of 3 Oscilloscope troubleshooting tree 2 of 3 Oscilloscope troubleshooting tree 3 of 3 Measuring the backlight voltage Figure 9 1 TDS1000 and TDS2000 series block diagram Figure 10 1 Exploded diagram 2 4 3 2 3 3 5 4 6 7 6 8 6 11 6 13 6 14 6 15 6 16 6 17 6 19 6 20 6 21 6 23 6 24 6 25 6 26 6 27 6 28 6 32 6 33 6 34 6 39 9 2 10 6 TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual Table of Contents List of Tables Table 1 1 Oscilloscope specifications Table 1 2 Oscilloscope general specifications Table 1 3 Oscilloscope EMC certifications and compliances Table 1 4 Oscilloscope safety certifications and compliances Table 1 5 Oscilloscope general certifications and compliances Table 2 1 Default settings Table 5 1 Required equipment Table 5 2 Adjustment steps Table 6 1 Internal inspection checklist Table 6 2 List of procedures Table 6 3 List of error codes Table 10 1 Parts list column descriptions Table 10 2 Manufacturers cross index Table 10 3 Replaceable parts list Table 10 4 Replaceable standard accessories Table 10 5 Replaceable optional accessories TDS1000 and TDS2000 Series Digital
64. ge that contains static sensitive modules TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual 6 1 Maintenance m Discharge the static voltage from your body by wearing a grounded antistatic wrist strap while handling these modules W Service static sensitive modules only at static free workstations Do not allow anything capable of generating or holding a static charge on the workstation surface m Handle circuit boards by the edges when possible Do not slide the modules over any surface Avoid handling modules in areas that have a floor or work surface covering capable of generating a static charge Inspection and Cleaning General Care Inspection and Cleaning Procedures This section describes how to inspect for dirt and damage and how to clean the oscilloscope Inspection and cleaning are done as preventive maintenance which when done regularly may prevent malfunctions and enhance reliability Preventive maintenance consists of visually inspecting and cleaning the oscilloscope and using general care when operating it Perform preventive maintenance more often if you operate the oscilloscope in a severe environment A good time to perform preventive maintenance is just before adjustment of the oscilloscope For optimum performance follow these recommendations W Protect the oscilloscope from adverse weather conditions The oscilloscope is not waterproof m Do not store or leave the o
65. ght connector as shown in Figure 6 22 Record the voltage of the signal TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual Maintenance Backlight voltage test points or Backlight voltage test points Figure 6 22 Measuring the backlight voltage 6 Add the results of both readings If a signal greater than 1400 Vpx px is present the backlight is probably defective Replace the display If the signal is not present proceed with step 7 7 Ifthe signal is missing detach the display using the procedure on page 6 24 and probe the backlight connector leads again 8 Add the results of both readings If a signal greater than 1400 Vpk px is present the display is probably defective Replace it If the signal is not present the power supply module is probably defective Replace it TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual 6 39 Maintenance Troubleshooting the Front Panel 6 40 To troubleshoot a nonfunctional front panel follow these steps To execute the internal diagnostic tests remove all input signals from the oscilloscope and enable the Service menu as described on page 5 3 2 Push the UTILITY button and push the Service option button The following options appear Menu Comments Factory Cal Steps through the calibration routine steps Total Init Writes factory default settings to all saved setups writes factory default data to all reference
66. hazardous voltages To prevent electrical shock always set voltage source outputs to 0 V before making or changing any interconnections Self Test This internal procedure is automatically performed every time the oscilloscope is powered on No test equipment or hookups are required Verify that no error messages are displayed before continuing with this procedure Self Calibration self calibration routine lets you quickly optimize the oscilloscope signal path for maximum measurement accuracy You can run the routine at any time but you should always run the routine if the ambient temperature changes by 5 C or more 1 Disconnect any probes or cables from the CH1 and CH2 input connectors 2 Press the UTILITY button and select the Do Self Cal option to start the routine The routine takes approximately one minute to complete 3 Verify that self calibration passed Check DC Gain Accuracy This test checks the DC gain accuracy of all input channels 1 Set the DC voltage source output level to 0 V 2 Setup the oscilloscope using the following steps Press menu button Select menu option Select setting 1 DEFAULT SETUP 2 CH1 Probe 1X 3 ACQUIRE Average 16 TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual 4 3 Performance Verification Press menu button Select menu option Select setting 4 MEASURE An unchecked channel Mean 3 As shown below connect the oscillosco
67. he PROBE COMP connectors Push TRIG MENU and push the top option button to select Edge triggering Then push the second option button to select Fxt as the source Finally push and hold the front panel TRIG VIEW button Once again you should see a square wave in the display TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual 2 5 Operating Information Self Calibration The self calibration routine lets you quickly optimize the oscilloscope signal path for maximum measurement accuracy You can run the routine at any time but you Default Setup 2 6 should always run the routine if the ambient temperature changes by 5 C or more To compensate the signal path disconnect any probes or cables from the channel input connectors Then press the UTILITY button and select the Do Self Cal option Follow the on screen instructions to proceed The table below lists the state of the oscilloscope after you press DEFAULT SETUP NOTE When you push the DEFAULT SETUP button the oscilloscope displays the CH1 waveform and removes all other waveforms Table 2 1 Default settings Menu or system Option button or knob Default setting ACQUIRE Sample Peak Detect and Sample Average Averages 4 8 16 64 and 16 128 RUN STOP RUN CURSOR Type Off Source CH1 Horizontal voltage 3 2 divs Vertical time 4 divs DISPLAY Type Vectors Persist Off Format YT HORI
68. hecking for the same voltages as in step 2 6 If all of the voltages are missing check the line fuse on the power supply module If the fuse is defective replace the power supply module 7 Ifthe fuse is okay and all or some of the voltages are missing the power supply module is probably defective Replace it Troubleshooting the troubleshoot a nonfunctional display follow these steps Display Remove the rear case using the procedure Rear Case on page 6 10 2 Turn on the oscilloscope and ensure that the display lights up If it does not either the display or power supply is defective If this procedure is not conclusive continue with Troubleshooting the Power Supply on page 6 35 NOTE Without a functional display module the simplest way to verify that the oscilloscope is on and functioning is to check for a signal at the PROBE COMP output The PROBE COMP output generates approximately a 5 V 1 kHz square wave 3 Use the test oscilloscope and set the Attenuation switch to 10X on the P2200 probe to probe the display cable connector at J201 on the main board The following table describes the signals you should expect to see See the 6 36 TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual Maintenance exploded diagrams in the Replaceable Parts chapter for the location and orientation of the connector on the main board Signal at J201 Pin 1 marked Description Monochrome No fixed
69. ing any change in part number Modules can be serviced by selecting one of the following two options Contact your local Tektronix service center or representative for repair assistance Module Exchange In some cases you may exchange your module for a reman ufactured module These modules cost significantly less than new modules and meet the same factory specifications For more information about the module exchange program call 1 800 833 9200 and select option 2 New Modules You may purchase replacement modules in the same way as other replacement parts TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual 10 1 Replaceable Parts Using the Replaceable Parts List This section contains a list of the mechanical and or electrical components that are replaceable for the oscilloscope Use this list to identify and order replace ment parts Table 10 1 describes each column in the parts list Table 10 1 Parts list column descriptions Column Column name Description 1 Figure amp Index Number Items in this section are referenced by figure and index numbers to the exploded view illustrations that follow 2 Tektronix Part Number Use this part number when ordering replacement parts from Tektronix 3and4 Serial Number Column three indicates the serial number at which the part was first effective Column four indicates the serial number at which the part was discontinued No entries indicates the par
70. ins performance verification procedures for the specifications marked with the symbol The following equipment or a suitable equivalent is required to complete these procedures Description DC Voltage Source Leveled Sine Wave Generator Time Mark Generator Minimum requirements 17 5 mV to 7 V 0 5 accuracy 50 kHz and 200 MHz 3 amplitude accuracy 10 ms period 10 ppm accuracy Examples Wavetek 9100 Universal Calibration System with Oscilloscope Calibration Module Option 250 Fluke 5500A Multi product Calibrator with Oscilloscope Calibration Option Option 5500A SC 50 Q BNC Cable BNC male to BNC male Tektronix part number 1m 36 in long 012 0482 XX 50 2 BNC Cable BNC male to BNC male Tektronix part number 25 cm 10 in long 012 0208 XX 50 2 Feedthrough BNC male and female Tektronix part number Termination connectors 011 0049 XX Dual Banana to BNC Adapter Banana plugs to BNC female Tektronix part number 103 0090 00 BNC T Adapter BNC male to dual BNC Tektronix part number female connectors 103 0030 00 TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual 4 1 Performance Verification Test Record Serial number Procedure performed by Date Test Eales Oscilloscope tests Low limit Test result High limit Channel 1 DC Gain Ac 5 mV div 33 6 mV 36 4 mV Ai 200 mV div 1 358 V 1 442 V 2 V div 13 58 V 14 42 V
71. internal error Contact Tektronix 1 DI ADG522 diagnostics failed Main board or power supply failure 2 DI PROM diagnostics failed Main board or power supply failure 3 DI MEMORY diagnostics failed Main board or power supply failure 4 DI CH1 diagnostics failed Main board or power supply failure 5 DI CH2 diagnostics failed Main board or power supply failure 6 DI Line trigger diagnostics failed Main board or power supply failure 7 DI ADG421 diagnostics failed Main board or power supply failure 8 DI GPIB diagnostics failed Extension module failure 9 DI RS 232 diagnostics failed Extension module failure 10 DI Extension module RAM failed Extension module failure 11 DI Extension module checksum failed Extension module failure 12 DI CH3 diagnostics failed Main board or power supply failure 13 DI CH4 diagnostics failed Main board or power supply failure 14 DI ADG421 2 diagnostics failed Main board or power supply failure 15 DI ADG522 2 diagnostics failed Main board or power supply failure 16 DI DRAN2 diagnostics failed Main board or power supply failure 255 Software Contact Tektronix 6 44 TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual Maintenance Clearing the Error Log To clear the error log after fixing a problem follow these steps 1 Enable the Service menus as described on page 5 3 2 Push the UTILITY button and push the Service option button to display the Service menu 3 Push the Service Diag option
72. l Color Display J90 gt 12 L e Backlight e A lt lt P O J203 1201 R Probe Comp LCD lt gt gt Display Control Signal lt 18 Pins i J104 P O J203 Probe Comp GND z CHI J300 Extension Module 27 CENTRONICS Figure 3 2 Module level block diagram four channel TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual 3 3 Theory of Operation Main Board Acquisition System 3 4 The main board of a four channel oscilloscope is essentially 2 two channel oscilloscopes tied together through a common microprocessor and some special interconnects to support combining the display and trigger systems For this reason the focus of the main board discussion will be the two channel system with differences noted as necessary At a minimum the main board contains attenuators an amplifier ASIC a digitizer trigger system ASIC a signal processing display system services ASIC RAM flash PROM a microprocessor and special power supplies For a four channel oscilloscope the attenuators and ASICs are duplicated Most of the other aspects of the circuitry remain unchanged Signals from the CH 1 CH 2 and other input connectors pass through attenuators and an AC coupling switch to the amplifier ASIC Th
73. main board at J101 Twist the cable four revolutions to keep it from contact with the boards and chassis 4 Use the installation procedure for each module removed to reassemble the oscilloscope Power supply ribbon cable Install screws 4 Empty hole 9 NO SCREW D Power supply module Power supply ground wire e Chassis ground lug Backlight cable Backlight connector monochrome LCD color LCD Figure 6 8 Installing the power supply module 6 16 TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual Maintenance Internal Assembly You will need a torque limiting Torx T 15 screwdriver and a flat blade screw driver for this procedure Removal To remove the assembly refer to Figure 6 9 and follow these steps 1 Remove the front panel knobs power button and rear case using the procedures on page 6 10 2 Remove the four screws attaching the internal assembly to the front case 3 Lift the entire internal assembly consisting of the chassis all of the boards and the display screen out of the front case NOTE The switch keypad will most likely remain inside the front case It does not need to be removed with the internal assembly Remove screws 4 Internal assembly Front case Figure 6 9 Removing and installing the internal assembly TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual 6 17 Maintenan
74. mmunity Performance criterion B IEC 61000 4 6 Conducted RF immunity Performance criterion A 4 IEC 61000 4 11 Voltage dips and interruptions immunity Performance criterion B EN 61000 3 2 AC power line harmonic emissions Meets the intent of Australian EMC Framework as demonstrated to the following specification AS NZS 2064 1 2 Emissions comply with FCC Code of Federal Regulations 47 Part 15 Subpart B Class A Limits 1 Emissions that exceed the levels required by this standard may occur when this equipment is connected to a test object 2 Toensure compliance to the standards listed above attach only high quality shielded cables to this oscilloscope High quality shielded cables typically are braid and foil types that have low impedance connections to shielded connectors at both ends 3 The increase in trace noise while subjected to a test field 3 V m over the frequency range 80 MHz to 1 GHz with 80 amplitude modulation at 1 kHz is not to exceed 2 major divisions peak to peak Ambient conducted fields may induce triggering when the trigger threshold is offset less than 1 major division from ground reference 4 The increase in trace noise while subjected to a test field 3 V m over the frequency range 150 kHz to 80 MHz with 80 amplitude modulation at 1 kHz is not to exceed 1 major division peak to peak Ambient conducted fields may induce triggering when the trigger threshold is offset less than 0 5 major divisions from ground refe
75. monochrome LCD and to the white socket for a color LCD Use the installation procedure for each module removed to reassemble the oscilloscope Power supply module Backlight cable Internal assembly Main board Display gt Display module e ribbon cable Figure 6 15 Installing the display module TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual 6 25 Maintenance Front Panel Module You will need a torque limiting Torx T 15 screwdriver and a flat blade screw driver for this procedure Removal To remove the front panel module refer to Figure 6 16 and follow these steps 1 Remove the power button and rear case using the procedures on pages 6 10 2 Remove the entire internal assembly from the front case using the procedure on page 6 17 3 Disconnect the front panel ribbon cable at J202 on the main board by pulling straight up from the connector 4 Remove the four screws attaching the front panel module to the internal assembly 5 Pull the module away from the internal assembly Internal assembly Main ee board d pm e p A 7 5 4 we 2 A ey e ee 77 Front panel oe 2 E ribbon cable 2 iJ s Sa E E Front panel module Figure 6 16 Removing the front panel module 6 26 TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual Maintenance Installation To install the front panel
76. mp Yes gt gt To Figure 6 20 Replace main board b gt To Figure 6 20 Front panel x Yes problems Verify LCD connector and cable values Run probe check on each channel Good Replace display voltages or display cable Probe Replace main check ok board Replace main board Connect external trigger to probe comp Set trigger source to EXT Trigger indicator ON Replace main board Press set 50 Figure 6 19 Oscilloscope troubleshooting tree 1 of 3 6 32 TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual Maintenance Reinstall module errors From Figure 6 19 B Check cabling to Able to run main board Verify power front panel Replace cable supply voltages From Figure tests front panel or main 6 19 board Power Disconnect supplies OK power supply Run front panel tests in service menu Verify power Replace main supply Voltages board Check cabling to lt 5 key main board problem Replace cable or supply Replace front panel board Replace main board Figure 6 20 Oscilloscope troubleshooting tree 2 of 3 TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual 6 33 Maintenance To Figure 6 19 lt From Figure 6 19 ELI Power cord Attach power attached cord A Reinstall case
77. n To install the front panel cable refer to Figure 6 12 and follow these steps 1 Connect the front panel cable to the front panel module at J1 through the appropriate slot on the chassis 2 Twist the cable two revolutions to keep it from contact with the boards and chassis and secure using the right cable tie 3 Connect the front panel cable at J202 on the main board by pushing the cable straight down into the connector You will need a torque limiting Torx T 15 long shank screwdriver a torque wrench and a 9 16 inch deep socket for this procedure CAUTION The main board module is particularly sensitive to ESD Read the Preventing ESD section on page 6 1 before removing or installing the main board Removal To remove the main board module refer to Figure 6 13 and follow these steps 1 2 Remove the power button and rear case using the procedures on page 6 10 Remove the internal assembly from the front case using the procedure on page 6 17 Disconnect the following wires from the main board by pulling straight up from the connector m The power supply ribbon cable at J101 Press down on the latch while pulling up on the cable m The display cable at J201 m front panel cable at J202 Use the screwdriver to remove the two screws attaching the main board module to the internal assembly Use the socket to remove the nuts and washers from the BNC connectors Pull the board out from the front slot
78. n button to access the Measure 1 menu Push and hold the front panel SINGLE SEQ button Push and hold the front panel AUTOSET button Wait at least two seconds Release the SINGLE SEQ button oo SOY do eA COR Release the AUTOSET button A message appears in the lower left corner of the screen stating Service mode ON 9 Push the front panel UTILITY button The last item in the Utility menu is now Service After the adjustment is complete disable the Service menu by pushing the UTILITY front panel button and the Service and Service Mode Off option buttons TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual 5 3 Adjustment Procedures DC voltage setup 1 Two Channel Four Channel Digitizing oscilloscope Digitizing oscilloscope DC voltage source OG Ococoocog oo0000 ococooooc TIRAR 2 20008 OOOO O 1 O Dual banana to BNC adapter 10 inch 10 inch T0 inch BNC cables BNC cables BNC cables 10 inch BNC cable BNC T connector cable J BNC T connectors t BNC cable 11 BNC T H connector 10 inch BNC cable DC voltage setup 2 g P Two Channel Digitizing oscilloscope DC voltage source oo0000 p SO E AA SO Qs Dual banana to BNC adapter BNC cable
79. nnel and with the same VOLTS DIV and coupling settings on each channel Refer to the Overvoltage Category description on page 1 9 1 2 TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual Specifications Table 1 1 Oscilloscope specifications Cont Vertical Digitizers 8 bit resolution except when set to 2 mV div each channel sampled simultaneously VOLTS DIV Range 2 mV div to 5 V div at input BNC Position Range 2 mV div to 200 mV div 2 V gt 200 mV div to 5 V div 50 V Analog Bandwidth in TDS1002 and TDS2002 TDS1012 TDS2012 and TDS2022 and TDS2024 Sample and Average modes 7052014 at BNC or with P2200 probe 60 MHzt 100 MHzt 200 MHzt Decoupled 0 C to 40 C 32 F to 104 F 160 MHzT 0 C to 50 C 32 F to 122 F 20 MHz when vertical scale is set to lt 5 mV Analog Bandwidth in Peak TDS1002 and TDS2002 TDS1012 TDS2012 TDS2014 TDS2022 and TDS2024 Detect mode 50 s div to 50 MHzt 75 MHzt 5 us div typical 20 MHz when vertical scale is set to 5 mV Selectable Analog Bandwidth 20 MHz Limit typical Lower Frequency x 10 Hz at BNC Limit AC Coupled x 1 Hz when using a 10X passive probe Rise Time at BNC TDS1002 and TDS2002 TDS1012 TDS2012 and TDS2022 and TDS2024 typical TDS2014 58ns 21m Peak Detect Captures 50 or greater amplitude of pulses gt 12 ns wide typical 50 s div to 5 us div in the center 8 Response vertical division
80. nobs by aligning the keyed knob with the shaft and pressing the knob onto the shaft Remove the power button by firmly grasping the button with pliers if necessary and pull it straight out of the cabinet NOTE Wrap the plier jaws with tape such as electrical to avoid marring the button surface Install the button by pressing it onto the power button shaft until it snaps into place You will need a torque limiting Torx T 15 screwdriver and pliers for this procedure Removal To remove the rear case refer to Figure 6 4 and follow these steps 1 Remove the power button using the procedure on page 6 10 2 If installed remove the extension module from the rear of the oscilloscope For instructions refer to the TDS1000 and TDS2000 Series User Manual CAUTION To avoid damage do not remove the rear case with an extension module installed 3 Place the oscilloscope face down on a soft surface such as an anti static mat TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual Maintenance 4 Remove the four screws located on the rear case Tilt the handle to gain better access to the top two screws 5 Lift the rear case off of the oscilloscope Remove rear case g screws 4 Rear case ESD Grounding ears Figure 6 4 Removing and installing the rear case TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual 6 11 Maintenance In
81. o the module level It describes the basic operation of each functional circuit block shown in Figures 3 1 and 3 2 Of necessity the descriptions for the two and four channel units and the color and monochrome units are slightly different TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual 3 1 Theory of Operation Power Supply AC Line 3 lt AC Line In Backlight Power Color Backlight acklight Power Mono DC anl Through e D chassis 99 2 1 11 7051000 Mono Front Panel 2 TDS2000 Color V Display 202 101 P131 12 DC In gt 2 e lt L e Backlight 203 Probe Comp a J201 00 902 Signal LCD 7 7 gt gt Display Control vo J203 18 Pins Probe Comp GND J300 V on G e Extension Module Con e aS GPIB Beo TRIG cenrronics Figure 3 1 Module level block diagram two channel 3 2 TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual Theory of Operation Power Supply re 3 lt AC Line In ir ie Not used P3 Backlight Power Color LU E EE GB DC su s s amp Line _ chassis m Front Pane
82. ollowing sections are included m Preparation tells you how to get ready to do oscilloscope maintenance m Preventing ESD provides general information on preventing damage to internal modules when doing maintenance m J nspection and Cleaning provides procedures for inspecting the oscilloscope and cleaning its external and internal modules m Removal and Installation Procedures provides procedures for the removal and installation of modules m Troubleshooting provides information for isolating failed modules Repackaging Instructions provides packaging information for shipment or storage Preparation Only qualified personnel should perform service procedures Read the Service Safety Summary and the General Safety Summary sections of this manual before performing any service procedures Also refer to the chapter Operating Informa tion and your oscilloscope user manual for information about using the oscillo scope Preventing ESD When performing any service which requires internal access to the oscilloscope adhere to the following precautions These precautions will help you avoid damaging internal modules and their components due to electrostatic discharge ESD CAUTION Static discharge can damage any semiconductor component in this oscilloscope m Minimize handling of static sensitive modules m Transport and store static sensitive modules in their static protected containers or on a metal rail Label any packa
83. pe generator 0 ooo 2 oc E E 30 Oe OO 50 feedthrough BNC cable terminator Set the time mark generator period to 10 ms Set the oscilloscope VOLTS DIV to 500 mV div Set the oscilloscope Main SEC DIV to 1 ms div Press SET LEVEL TO 50 Use the vertical POSITION control to center the test signal on screen Use the horizontal POSITION control to set the position to 10 00 ms Se e X m d 0 Set the oscilloscope SEC DIV to 250 ns div TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual Performance Verification 10 Check that the rising edge of the marker crosses the center horizontal graticule line within 2 divisions of center graticule NOTE One division of displacement from graticule center corresponds to a 25 ppm time base error 11 Disconnect the test setup Check Edge Trigger This test checks the edge trigger sensitivity for all input channels 1 Setup the oscilloscope using the following steps Press menu button Select menu option Select setting DEFAULT SETUP CH 1 Probe 1X TRIGGER Mode Normal ACQUIRE Sample MEASURE Source An unchecked channel Type Pk Pk 2 As shown below connect the oscilloscope channel selected in the table to the leveled sine wave generator Leveled sine wave Digitizing oscilloscope generator 20 0 O Output OO
84. pe channel selected in the table to the DC voltage source DC voltage source 9 Bd OOO Dual banana OO to BNC adapter Digitizing oscilloscope 00000 cop0000o 80 BNC cable 4 Foreach VOLTS DIV setting listed below perform the following steps a Setthe DC voltage source output level to the positive voltage listed and then record the mean measurement as Vpo b Reverse the polarity of the DC voltage source and then record the mean measurement as Veg c Calculate Vpos Vneg and then compare to the accuracy limits in the table VOLTS DIV setting DC voltage source output levels Accuracy limits for V git 5 mV div 17 5 mV 17 5 mV 33 6 mV to 36 4 mV 200 mV div 700 mV 700 mV 1 358 V to 1 442 V 2 7 00 V 7 00 V 13 58 V to 14 42 V 5 Set DC voltage source output level to 0 V 6 Disconnect the test setup 7 Repeat steps 1 through 6 until all input channels have been checked 4 4 TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual Performance Verification Check Bandwidth This test checks the bandwidth of all input channels 1 Set up the oscilloscope using the following steps Press menu button Select menu option Select setting DEFAULT SETUP CH 1 Probe 1X ACQUIRE Average 16 TRIGGER Coupling Noise MEASURE Source An unchecked channel Type Pk Pk 2 As shown below
85. r to Figure 6 7 and follow these steps 1 Remove the power button and rear case using the procedures on page 6 10 2 Disconnect the following wires m The ground wire on the power supply module from the chassis ground lug m The two conductor backlight cable on the power supply module m The power supply ribbon cable on the main board at J101 Press down on the latch while pulling up on the cable 3 Remove the four screws connecting the power supply module to the chassis and lift the module from the internal assembly Remove screws 4 Power supply ribbon p Ground wire 3 Backlight cable color LCD Backlight connector monochrome LCD Figure 6 7 Removing the power supply module TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual 6 15 Maintenance Installation To install the power supply module refer to Figure 6 8 and follow these steps 1 Align and place the power supply module into the internal assembly 2 Install the four screws Do not put a screw into the empty hole in Figure 6 8 3 Reconnect the following wires m The ground wire on the power supply module to the chassis ground lug You may need to use pliers to secure the wire in place m The two conductor backlight cable on the power supply module Connect to the black socket for a monochrome LCD and to the white socket for a color LCD m The power supply ribbon cable to the
86. rence 1 8 TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual Specifications Table 1 4 Oscilloscope safety certifications and compliances Certifications CSA Certified Power Cords Pollution Degree 2 Overvoltage Category CAN CSA C22 2 No 1010 1 92 UL3111 1 First Edition CSA Certification includes the products and power cords appropriate for use in the North America power network All other power cords supplied are approved for the country of use Do not operate in environments where conductive pollutants may be present Category Examples of Products in this Category CAT III Distribution level mains fixed installation CAT Il Local evel mains appliances portable equipment CATI Signal levels in special equipment or parts of equipment telecommunications electronics Adjustment Factory Calibration Interval The recommended calibration interval is one year Table 1 5 Oscilloscope general certifications and compliances Russian Federation Peoples Republic of China This product was certified by the GOST ministry of Russia to be in compliance with all applicable EMC regulations This product has received the Chinese Metrology Certification CMC TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual 1 9 Specifications 1 10 TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual ee A Operating Information TDS1000 and TDS2000 se
87. ries oscilloscopes are two or four channel instru ments in small lightweight benchtop chassis that you can use to take ground referenced measurements In addition to a list of general features this chapter covers How to install your product How to add extended functions How to perform a brief functional check How to use the self calibration routine How to restore factory default settings For more detailed information about oscilloscope operation refer to your user manual TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual 2 1 Operating Information General Features Model Channels Bandwidth Sample rate Display TDS1002 2 60 MHz 1 0 GS s Monochrome TDS1012 2 100 MHz 1 0 GS s Monochrome TDS2002 2 60 MHz 1 0 GS s Color TDS2012 2 100 MHz 1 0 GS s Color TDS2014 4 100 MHz 1 0 GS s Color TDS2022 2 200 MHz 2 0 GS s Color TDS2024 4 200 MHz 2 0 GS s Color Context sensitive Help system Color or monochrome LCD display Selectable 20 MHz bandwidth limit 2500 point record length for each channel Autoset Menu Probe Check Wizard Cursors with readouts Trigger frequency readout Eleven automatic measurements Waveform averaging and peak detection Dual time base Math Fast Fourier Transform FFT Pulse Width trigger capability Video trigger capability with line selectable triggering External trigger Setup and waveform storage Variable persistence display RS 232 GP
88. s DC Gain Accuracy 3 for Sample or Average acquisition mode 5 V div to 10 mV div 4 for Sample or Average acquisition mode 5 mV div and 2 mV div DC Measurement Measurement Type Accuracy Accuracy Average Acquisition average of 16 waveforms with 3 x reading 0 1 div 1 mV when 10 mV div or greater is Mode vertical position at zero selected Average of 16 waveforms with 3 x reading vertical position 1 of vertical position vertical position not at zero 0 2 div Add 2 mV for settings from 2 mV div to 200 mV div Add 50 mV for settings from gt 200 mV div to 5 V div Volts Measurement Delta volts between any two aver 3 x reading 0 05 div Repeatability ages of 16 waveforms acquired Average Acquisition Mode under same setup and ambient conditions T When vertical scale is set to 5 mV Bandwidth reduced to 6 MHz with a 1X probe The oscilloscope reverts to Sample mode when the SEC DIV horizontal scale is set from 2 5 us div to 5 ns div 1 GS s models or from 2 5 us div to 2 5 ns div on 2 GS s models The Sample mode can still capture 10 ns glitches TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual 1 3 Specifications Table 1 1 Oscilloscope specifications Cont Horizontal Sample Rate Range Waveform Interpolation Record Length SEC DIV Range L Sample Rate and Delay Time Accuracy Delta Time Measurement Accuracy Full Bandwidth Position Range
89. s Service Manual 4 9 Performance Verification 4 10 7 Press SET LEVEL TO 50 Adjust TRIGGER LEVEL as necessary and then check that triggering is stable 8 For TDS2022 and TDS2024 models set the sine wave generator frequency to 200 MHz 9 For TDS2022 and TDS2024 models set the sine wave generator output level to approximately 350 10 Press SET LEVEL 50 Adjust TRIGGER LEVEL as necessary and then check that triggering is stable 11 Change the oscilloscope setup using the following step Press menu button Select menu option Select setting 12 Press SET LEVEL TO 50 Adjust TRIGGER LEVEL as necessary and then check that triggering is stable 13 Change the oscilloscope setup using the following step Press menu button Select menu option Select setting 14 Disconnect the test setup TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual Sane a 2 97 Adjustment Procedures Required Equipment This chapter contains adjustment procedures for the TDS1000 and TDS2000 series oscilloscopes Only qualified personnel should perform service procedures Read the Service Safety Summary and the General Safety Summary at the beginning of this manual before performing any service procedures Also refer to the chapter Operating Information for information about using the TDS1000 and TDS2000 oscillo scopes NOTE The voltage references inside the TDS1000 and TDS2000 oscilloscopes are
90. s an injury hazard immediately accessible as you read the marking WARNING indicates an injury hazard not immediately accessible as you read the marking CAUTION indicates a hazard to property including the product Symbols on the Product The following symbols may appear on the product A AN 5 DANGER Protective Ground ATTENTION Double High Voltage Earth Terminal Refer to Manual Insulated TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual General Safety Summary Probe Safety guard around the probe body provides a finger barrier for protection from electric shock Finger guard WARNING To avoid electric shock when using the probe keep fingers behind the guard on the probe body To avoid electric shock while using the probe do not touch metallic portions of the probe head while it is connected to a voltage source Connect the probe to the oscilloscope and connect the ground terminal to ground before you take any measurements TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual ix General Safety Summary X TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual E A Service Safety Summary Only qualified personnel should perform service procedures Read this Service Safety Summary and the General Safety Summary before performing any service procedures Do Not Service Alone Do not perform internal service or adjustments of this product
91. s of the internal assembly TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual Maintenance Front panel connector Main board module Display connector Power supply connector Internal assembly Remove Main board screws 2 Figure 6 13 Main board removal Installation To install the main board module refer to Figure 6 13 and follow these steps 1 Working from the bottom of the internal assembly place the front of the main board module into the slots on the assembly near the the BNC connectors 2 Use the deep socket to attach the washers and nuts to each BNC connector so that the main board is securely attached to the chassis Torque the nuts to 40 in lbs using the torque wrench 3 Install the two screws attaching the main board module to the internal assembly 4 Reconnect the following wires on the main board m The power supply ribbon cable at J101 m The display cable at J201 The front panel cable at J202 5 Use the installation procedure for each module removed to reassemble the oscilloscope TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual 6 23 Maintenance Display Module You will need a torque limiting Torx T 15 screwdriver and pliers for this procedure Removal To remove the display module refer to Figure 6 14 and follow these steps 1 Remove the power button and rear case using the procedures on page 6 10 2 Remove the internal
92. scilloscope where the liquid crystal display LCD will be exposed to direct sunlight or high humidity for long periods of time m The front and rear cases help keep dust out of the oscilloscope and must be in place during normal operation To avoid damage to the oscilloscope or probes do not expose them to any sprays liquids or solvents The collection of dirt on internal components can cause them to overheat and fail Dirt also provides an electrical conduction path that could cause an oscillo scope failure especially under high humidity conditions Inspect and clean the oscilloscope and probes as often as operating conditions require TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual Maintenance Inspection Exterior Inspect the outside of the oscilloscope for damage wear and missing parts Oscilloscopes that appear to have been dropped or otherwise abused should be checked thoroughly to verify correct operation and perfor mance Immediately repair defects that could cause personal injury or lead to further damage to the oscilloscope Cleaning Procedure Exterior To clean the oscilloscope exterior and probes 1 Remove loose dust on the outside of the oscilloscope and probes with a lint free cloth Use care to avoid scratching the clear glass display shield 2 Use a soft cloth dampened with water to clean the oscilloscope or use 75 isopropyl alcohol solution for more efficient cleaning
93. stallation Use this procedure to install the rear case 1 Place the oscilloscope face down on a soft surface such as an anti static mat 2 Place the rear case onto the assembled oscilloscope and ensure that All of the edges align with the front case m The ESD grounding ears align with the rear case slots If not they must be bent into the correct position Figure 6 5 shows proper alignment m The notches on the edge of the main board module align with ridges on the rear case near the extension module connector slot Figure 6 5 shows the location of the notches CAUTION Failure to properly align the ESD grounding ears may result in ESD damage to the extension module and or the oscilloscope Refer to Figure 6 5 Be careful not to pinch any wires or other parts between the front and rear cases 3 Install the four screws in the rear case Tilt the handle to better access the top two holes CAUTION Avoid cross threading the screws that secure the rear case to the front case An easy way to avoid this is to slip the screw into the hole and using slight pressure slowly rotate the screw counterclockwise until you feel the screw slip into the screw threads Then tighten the screw clockwise A properly started screw will have very little resistance going in 4 Install the power button as described on page 6 10 TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual Maintenance
94. t is good for all serial numbers 5 Qty This indicates the quantity of parts used 6 Name amp Description An item name is separated from the description by a colon Because of space limitations an item name may sometimes appear as incomplete Use the U S Federal Catalog handbook H6 1 for further item name identification 7 Mfr Code This indicates the code of the actual manufacturer of the part 8 Mfr Part Number This indicates the actual manufacturer s or vendor s part number Abbreviations Abbreviations conform to American National Standard ANSI Y1 1 1972 10 2 TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual Replaceable Parts Mfr Code to Manufacturer Cross Index Table 10 2 Manufacturers cross index Mfr code 06915 0 01 22670 80009 TK1163 TK2288 TK6430 6431 TK6433 TK6549 TK6552 TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual Manufacturer RICHCO STAUFFER SUPPLY CO GM NAMEPLATE INCORPORATED TEKTRONIX INC POLYCAST INC CAMCAR DIV OF TEXTRON INC AULT XIANGHEI ELECTRONIC CO LTD BOURNS XIAMEN LTD I SHENG ELECTRIC WIRE amp PLASTIC KUNSHAN CO LTD TYCO ELECTRONICS KUNSHAN LTD SAM SEIKI METAL amp PLASTIC PRODUCTS CO LTD Address 5825 N TRIPP AVE P O BOX 804238 810 SE SHERMAN 2040 15TH AVE WEST 14200 SW KARL BRAUN DR PO BOX 500 14140 SW 72ND AVE SUITE 100 826 E MADISON ST ANPING
95. tal Storage Oscilloscopes Service Manual Adjustment Procedures Adjustment Procedure Enable the Service Menu The adjustment procedure consists of 70 steps for the two channel oscilloscope and 106 steps for the four channel model Each step requires an external voltage source for new calibration constants Before performing the adjustment procedure you must warm up the oscilloscope for at least ten minutes in an ambient temperature between 20 C and 30 C Adjustments performed prior to warm up or outside this temperature range may result in poor performance If all steps in the procedure are completed successfully a Pass message is displayed and the new calibration constants take affect If any step fails the procedure is aborted and the current calibration is not affected You can choose to abort the procedure at any step by selecting FCAL ABORT without affecting the current calibration NOTE While performing the adjustment procedure keep in mind that some of the steps take a significant amount of time up to 5 minutes to complete The equipment setups shown in Figure 5 1 are required to complete the adjustment procedure Table 5 2 on page 5 6 lists the steps in the procedure and the signal requirement for each step You must enable the Service menu to perform the adjustment procedure To do this Power on the oscilloscope Push the front panel MEASURE button to access the MEASURE menu Push the top optio
96. tries in the world and in a number of off grid environments such as military power on aircraft The secondary supplies from the power supply and the approximate current draws are listed in the table on page 6 35 with the associated connector pins on J101 For information on voltages used in the oscilloscope refer to the Troubleshooting section of this manual The display module is a standard passive liquid crystal display LCD The monochrome unit is patterned with 320 columns by 240 rows and has the associated drivers and backlight The backlight is based on a 5 mA side light fluorescent tube The color unit is patterned with 320 columns x 3 sub columns by 240 rows and has associated drivers and backlight The backlight is based upon a 5 mA top light fluorescent tube which runs a higher voltage and is longer to provide sufficient extra light to overcome the higher loss associated with the color filters You can access all of the switches position encoders and LEDs on the front pan el board of two channel oscilloscopes Additionally an IC on the front panel board provides buffering and multiplexing of switch signals to the main board Two signals and a sense line are provided by the main board to support the front panel One of these lines resets the scan a second clocks the scan to the next position and the sense line receives the current state of the selected switch or encoder position For the encoders some amount of debouncing o
97. ture range 20 C to 60 C m Altitude To 15 000 m See the chapter Specifications for a complete listing of the environmental characteristics 6 46 TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual Options There are no options available for the TDS1000 and TDS2000 series oscillo scopes For a list of available accessories refer to chapter Mechanical Parts List TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual 7 1 Options 7 2 TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual ene A Electrical Parts List Refer to the Mechanical Parts List chapter for a complete listing and description of replaceable parts for the TDS1000 and TDS2000 series oscilloscopes TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual 8 1 Electrical Parts List 8 2 TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual SS Diagrams This section describes the electrical operation of the TDS1000 and TDS2000 series oscilloscopes using the major circuit blocks or modules Figure 9 1 shows the oscilloscope module interconnections The shaded area in Figure 9 1 represents modules and circuits used only in four channel oscilloscopes TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual 9 1 Diagrams Power Supply Display Amplifier Processor and ASIC A Display A y
98. uardband Not Equal Guardband Trigger Frequency Counter Readout Resolution Accuracy typical Frequency Range Signal Source Measurements Cursors Trigger when lt Less than gt Greater than Equal or Not Equal Positive pulse or Negative pulse Equal The oscilloscope triggers when the trailing edge of the pulse crosses the trigger level Not Equal If the pulse is narrower than the specified width the trigger point is the trailing edge Otherwise the oscilloscope triggers when a pulse continues longer than the time specified as the Pulse Width Less than The trigger point is the trailing edge Greater than also called time out trigger The oscilloscope triggers when a pulse continues longer than the time specified as the Pulse Width Selectable from 33 ns to 10 s 16 5 ns or 1 part per thousand whichever is larger t gt 330 ns 5 guardband lt 5 196 16 5 ns t lt 330 ns guardband 16 5 ns t lt 330 ns guardband 16 5 ns 165 ns t 330 ns guardband 16 5 ns 33 ns t lt 165 ns guardband 16 5 ns 6 digits 51 ppm including all frequency reference errors and 1 count errors AC coupled 10 Hz minimum to rated bandwidth Pulse Width or Edge Trigger modes all available trigger sources The Frequency Counter measures trigger source at all times including when the oscilloscope acquisition is halted due to changes in the run status or acquisition of a single shot event has compl
99. unless another person capable of rendering first aid and resuscitation is present Disconnect Power To avoid electric shock disconnect the main power by means of the power cord or if provided the power switch Use Care When Servicing With Power On Dangerous voltages or currents may exist in this product Disconnect power remove battery if applicable and disconnect test leads before removing protective panels soldering or replacing components To avoid electric shock do not touch exposed connections TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual xi Service Safety Summary xii TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual Preface Related Manuals The service manual for the TDS1000 and TDS2000 Series Digital Storage Oscilloscopes provides instructions to verify the performance of calibrate troubleshoot and repair the oscilloscopes to the module level Unless noted otherwise the term oscilloscope refers to all of the models in the TDS1000 and TDS2000 series These manuals contain additional documentation for the oscilloscopes Extension module User manual instructions part Language part number number English 071 1064 XX 071 0409 XX French 071 1065 XX 071 0483 XX German 071 1067 XX 071 0485 XX Italian 071 1066 XX 071 0484 XX Spanish 071 1068 XX 071 0482 XX Portuguese 071 1070 XX 071 0486 XX Japanese 071 1069 XX 0
100. ur channel models 13 Turn on the oscilloscope and check connector J202 two channel models or J1 four channel models for the same signals as in step 9 14 If some or all of the signals are missing the main board is probably defective Replace it TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual Maintenance Troubleshooting the Main Board Running Diagnostics Troubleshooting Input Connections To troubleshoot the main board follow these steps Remove the rear case using the procedure Rear Case on page 6 10 2 Use the test oscilloscope to measure the voltages from the power supply module at J101 on the main board module The table below lists the voltages you should expect to see Maximum J101 J101 Current power return Derived Supply Voltage range Draw pins pins supplies 35V 30 Vpc to 40 Vpc floating 15 mA 1 2 28 V LCD Pin 2 connected to 43 3 V on the main board 6 V 5 5 V to 6 5 V 0 7 A 4 3 5 8 5V 10 3 3 V 3 0 V to 3 6 V Requires 1 5A 6 7 3 5 8 33V 2 5 V minimum load to maintain 10 regulation 4V 5 0 V to 3 5 V 0 8A 9 3 5 8 2 5 V 10 Line trigger 2 V to 6 V open circuit 1mA 11 3 5 8 Line trigger 10 1 diode drop when at tached to the main board With 3 W minimum load still functions with no load 3 Ifall of the voltages are present the main board is probably defective Replace it The oscilloscope runs an
101. w debris into the encoders Proceed with step 3 3 Spray wash dirty parts with the 75 isopropyl alcohol solution and wait 60 seconds for the majority of the alcohol to evaporate 4 Use hot 49 C to 60 120 F to 140 F deionized water to thoroughly rinse the parts 5 Dry all parts with low pressure deionized air 6 Dry all components and assemblies in an oven or drying compartment using low temperature 52 C to 66 C 125 F to 150 F circulating air Lubrication Periodic lubrication is not required for the oscilloscope TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual Maintenance Removal and Installation Procedures Preparation AN List of Modules This section describes how to remove and install the major mechanical and electrical modules It provides the following information m Tools Required on page 6 6 describes the tools needed to perform the procedures m List of Modules on page 6 5 describes where to locate a list of replaceable modules m Summary of Procedures on page 6 6 lists the procedures for removal and installation of modules m Rear Feet on page 6 7 begins a series of procedures that describe the removal and installation of modules Read this section to prepare for module removal and installation WARNING Only qualified personnel should perform service procedures Before doing this or any other procedure in this manual read the General S

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