Tektronix 067-0883-99 Instruction Manual Download

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Summary of Contents for 067-0883-99

Page 1: ...on 97077 061 2213 00 Product Group 45 COMMITTED TO EXCELLENCE PLEASE CHECK FOR CHANGE INFORMATION AT THE REAR OF THIS MANUAL UNIVERSAL LOAD UNIT 067 0883 99 INSTRUCTION MANUAL Serial Number _ _ _ _ __ First Printing AUG 1979 Revised MAR 1982 ...

Page 2: ...ility or liability consequential or otherwise of any kind arising from misinterpretation or misuse of the material in this manual The contents of this manual are subject to change without notice Copyright 1979 by Tektronix Inc Beaverton Oregon Printed in the United States of America All rights reserved U S A and foreign TEKTRONIX products covered by U S and foreign patents and or patents pending T...

Page 3: ...RUCTIONS UNLESS YOU ARE QUALIFIED TO DO SO SECTION 3 THEORY OF OPERATION Block Diagram Description Circuit Description High Current Cells Medium Current Cells Low Current Cells Digital Multimeter Program Board Power Supplies SECTION 4 CALIBRATION TEST PROCEDURE Required Equipment List Verification Procedure Calibration Procedure SECTION 5 REPLACEABLE PARTS SECTION 6 DIAGRAMS CIRCUIT BOARD ILLUSTRA...

Page 4: ...2213 01 Universal Load Unit ...

Page 5: ...l digital multi meter Also each channel is monitored for an out of tolerance condition as indicated by one of thirteen comparator driven front panel LED s The thirteen position CHANNEL SELECTOR switch is used to connect the ULU controls and output monitoring circuits to each of the 12 active cells As selected each active load cell or channel can be set up to provide a resistive load or a constant ...

Page 6: ...UNIVERSAL LOAD UNIT 1 2 ...

Page 7: ...lowing tabular listing Current Max Fused Accuracy Channels 1 2 7 8 24 A 30A 5 0 5 FS Channels 3 4 9 10 10A 15A 5 0 5 FS Channels 5 6 11 12 2A 5A 5 0 5 FS Channel 13 1A Voltage Max Trip Voltage Saturation Amps Crowbar minimum Channels 1 2 50V 55V S 2V 15A max Channels 7 8 50V 55V S 2V 15A max Channels 3 4 100V 11 ov S 4 5V 10A max Channels 9 10 100V 110V S 4 5V 10A max Channels 5 6 160V 180V S 8V 2...

Page 8: ...UNIVERSAL LOAD UNIT 1 4 ...

Page 9: ...in the following class 5 categories shake shock transportation bench handling and abbreviated thermal tests limited to o0 c to 50 c with instrument on Accessories Standard Accessories for the ULU include this manual 061 2213 00 and the following listed items Mating Connectors P1 P2 2 Mating Connector P3 AC Power Cord Packing Box Foam Pad Pad Set 131 0097 00 131 0293 00 161 0066 00 004 0766 00 004 ...

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Page 11: ...e to the supply under test Also if the supply under test does not have an over voltage limit the ULU s crowbar may be initiated causing an open fuse damage to the supply under test or both CURRENT ADJUST Control The CURRENT ADJUST control is a combination push pull switch and dual potentimeter Pulling out on this control engages the current adjust function pushing in disengages it With the control...

Page 12: ... plug in module removed With the P2119 jumpers connecting pins 1 to 2 and 4 to 5 the INDividual Chop mode is selected in which only the channel selected by the CHANNEL SELECT control is chopped or step loaded Note that the CURRENT ADJUST switch must be pushed in to enable the chopping action Chopper state information is available at the SYNC output BNC connector The cell current value in effect wh...

Page 13: ...DMM is an auto ranging numerical display indicator with a four and a half digit readout The DMM is used to indicate the polarity and numerical value of DC voltage or current on a selected channei OUT OF REGULATION Indicators The OUT OF REGULATION indicators consist of 13 red lights mounted in a group on the upper front panel There is one light per channel and when illuminated each indicates that t...

Page 14: ...OLS AND CONNECTORS POWER SWITCH The POWER SWITCH is a two position ON OFF rocker switch used to apply or remove AC power 230V 115V SWITCH The 230V 115V switch is a two position flush mounted slider switch used to select input AC voltage FUSE FUSEHOLDER The AC power fuse for the ULU is a 1 amp 250 volt standard fuse The fuseholder is located just above the AC power receptacle and is designed for 3A...

Page 15: ... I return 27 28 Channel 9 med I 29 30 Channel 10 med I 31 Channel 11 low I 32 Channel 12 low I return Table 2 2 P2 POSITIVE Pin Function List Pins Function 1 2 3 4 5 Channel 1 high I 6 7 8 9 10 Channel 2 high I 11 12 Channel 3 med I 13 14 Channel 4 med I 15 Channel 5 low I 16 Channel 6 low I 17 18 19 20 21 Channel 1 high I return 22 23 24 25 26 Channel 2 high I return 27 28 Channel 3 med I return ...

Page 16: ...e high Channel 10 11 Voltage remote sense high Channel 11 12 Voltage remote sense high Channel 12 13 Channel 13 Passive HV high 14 Not Used 15 Not Used 16 Fan interlock jumper 17 Not Used 18 Not Used 191 Voltage remote sense low Channel 201 Voltage remote sense low Channel 2 21 1 Voltage remote sense low Channel 3 22 1 Voltage remote sense low Channel 4 23 1 Voltage remote sense low Channel 5 24 1...

Page 17: ...rrent cell is programmed for 64 watts 80 X BOW or more With the cooling fans running continuously peak temperature overstresses which might occur before the fans cycle on will be avoided Initial Turn On Before the power is applied to the ULU verify that 1 The 120 230 VAC switch on the rear panel is set to match the line voltage to be used 2 The AC line fuse is the correct value 1 amp std is intact...

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Page 19: ...NEL SELECT switch This thirteen position wafer switch connects ULU controls and output monitoring circuits to each of the twelve active cells The thirteenth switch position connects one or two user selected fixed resistors between ground and the power supply under test The active channels are divided into six groups of two by polarity and current handling capability as shown in Table 3 1 All cells...

Page 20: ...E RVOLTAG rEST VOLTAG S IVSE AUTORIJNG ING DIGITAL MULTI METER Volto 9e G Cunel lt OG7 0883 93 CURRENT S NSE COMMON SENSE P o CHllNN L S LECTOR SWITCH 3 2 WIN DO b COMPARA TOR1 v CELL 1 PROTECTION OUT OF R GULtJ710N One LED fer c ell r 1f EMOTE SENS HIGH OUTPUT HIGH PLUG IN CABLE ASSY FOWER SUPPLY UNDER TEST OUTPUT LOW 12 MOT SENSE LOW Agure 3 1 BLDCk DIAGRAM UNIVERSAL LOAD UNIT ...

Page 21: ...lts de to the front panel BNC connector EXT IN See EXTernal INput connector description in Section 2 Voltage or current from the power supply under test can be alternatively displayed on the digital multimeter Power supply ripple is available for measurement at two front panel jacks RIPPLE OUT and RIPPLE OUT When the Step Load Chop Generator is activated in the individual chop mode the control cur...

Page 22: ...nstant power curve with break points at 5 1 and 16 volts A 30 amp fuse and SCR crowbar provide over voltage protection with a nominal trip point of 57 volts The same fuse and a diode CR103 typical provide circuit protection in the event of polarity reversal Medium Current Ce1ls As illustrated on diagram rY each of the four medium current cells are of similar construction with two positive channels...

Page 23: ... low current cells to operate at approximately 4 5 volts Programming current Ip develops a control voltage across the 200 ohm input resistor R512 typical on the positive input of the op amp The voltage developed across a four terminal 1 ohm Kelvin sense resistor is routed to the inverting input of the op amp A second operational amplifier functions as a protective comparator to provide a voltage c...

Page 24: ...nding buffer amplifiers to auto range the input attenuator Analog to Digital Converter The analog to digital conversion process of input signals is completed by a four and one half digit converter consisting of IC s U4001 and U4003 U4001 contains the analog circuitry including the switched input buffer pins 15 and 1 integrator pins 9 and 11 comparator pins 11 and 14 and auto zero buffer and filter...

Page 25: ...a the Chop Individual Chop All jumper P2119 on Lower Panel board 9 The first amplifier circuit consisting of buffer driver stages Q4017 and Q4020 provides an output to the front panel BNC connector SYNC The second circuit consisting of Q4018 and Q4019 drives the gate of DMOS switch Q4021 with a 12V to 12V square wave Q4021 is paralled by S4067 the CURRENT ADJUST switch Note that the 5VB supply to ...

Page 26: ... RpH and RpL are chosen to provide a constant current load for a specific power supply where RpH equals the high current and RPL equals the low current resistor RcoMP comparison designates a resistor in each cell that supplies the upper half of a voltage divider The output of this divider is compared to a standard to determine if the applied voltage is within prescribed limits RDES desensitizing d...

Page 27: ... with Q3002 Q3003 and pass transistor Q3004 R3005 is used to adjust the 12VB supply R3010 is used to adjust the 12VB supply An adjustment procedure for ULU power supplies is included in Section 4 Calibration Power Supply Fuses The ULU power supply includes five 1 amp fuses that are accessable with the side covers removed Fuse numbers and associated supplies are as follows F3002 protects the F3003 ...

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Page 29: ...cy 5 1 2 digit 0 02 Digital Multimeter DMM Current accuracy 4 1 2 digit 0 3 Variable regulated DC power supply Must float and produce up to 20 volts at 1 ampere 32 Pin Female Connector Must fit P1 NEGATIVE and P2 POSITIVE rear panel connectors 36 Pin Male Connector Optional Must fit P3 SENSE rear panel connector improved signal access CAUTION Suggestion Fluke 3875A or HP 3490A or equivalent TEK DM...

Page 30: ...ch follow should be performed in the order in which they are given Procedure 1 Set Up The test equipment shown in the Verification Test Set Up diagram Figure 4 1 DMM POWER Amps P1 SUPPLY or P2 UNIVERSAL LOAD UNIT DMM Volts P3 See tables for specific pins Fig 4 1 Verification Test Set up 2 Refer To Table 4 1 Verification Test for the Jack and Pin numbers of the inputs associated with each of the CH...

Page 31: ...15 to 0 015A 0 015 to 0 015A Not applicable I Difference I Int DMM I Ext DMM Above Tabulated Values NOTE V Difference V Int DMM V Ext DMM 0 012 VDC for all channels 3 Connect A female 32 pin connector Amphenol 26 190 32 Tek 131 0097 00 to the indicated Jacks to make it easier to connect and disconnect the test leads Also connect a male 36 pin connector Amphenol 57 30360 Tek 131 0293 00 to the P3 S...

Page 32: ...Meter should agree with the external voltage DMM reading to within 0 012 VDC The current readings should be the values indicated in the Verification Test Table 8 After each measurement Reset The external power supply to OFF before it is disconnected and moved to the next channel the CURRENT ADJUST push pull switch to its in position and the COARSE and FINE controls both to their mid rotation posit...

Page 33: ...Measure between Required Voltage Adjust P6 3 and P6 2 11 9 to 12 1 VDC R3018 Note Compromise to attain P6 1 and P6 2 11 9 to 12 1 VDC R3018 both w R3018 P2 1 and P6 2 4 8 to 5 2 VDC On Supply B Measure Required Voltage Adjust P11 1 and P11 2 12 000VDC R3005 P11 3 and P11 2 12 000 VDC R3010 P2 2 and P11 2 4 8 to 5 2 VDC 4 5 ...

Page 34: ...re 4 3 for the locations of the following measurement and adjustment points 3 Short P4002 1 and P4002 4 together firmly Adjust R4022 Voffset for a reading of 0 0000 VDC on the panel meter 4 Re ove The short between P4002 1 and P4002 4 Apply 1 70 0 01 VDC across P4002 1 and P4002 4 Adjust R4016 to ma ke the U L U DMM agree with the external DMM to within 0 0001 VDC 5 Apply 1 70 0 001 VDC to P4002 1...

Page 35: ... Igain until the U L U DMM indicates a voltage 10x the input signal as measured on the external DMM 0 001 VDC 9 Apply 17 0 01 VDC across P4002 2 and P4002 3 Adjust R4005 offset for a best compromise between 10x agreement between the U L U DMM and the external DMM 0 002 VDC and the requirement of step 7 10 Apply Successively 1 7 VDC 17 VDC and 20 0 VDC across P4002 2 and P4002 3 Verify That the dec...

Page 36: ...e four screws External Input 1 Verify That the CHANNEL SELECT Switch is in position 13 Set The external DMM to the 2 mA scale Measure Between the front rotor of the 10th wafer of the CHANNEL SELECT switch see Fig 4 4 and chassis ground Adjust R4072 for O OOOmA on the externa l DMM Fig 4 4 Channel Select Switch 4 8 ...

Page 37: ...t procedure which follows is the same for all cells 1 Set The VOLTAGE CURRENT switch to the Current position and the CHOP SWITCH switch to the Switch position Apply No external voltage or signal 2 Before each adjustment Switch The CHANNEL SELECT switch to the next position of positions 1 through 12 3 For each position Use The Null Offset Pot indicated in Figure 4 5 for the channel being adjusted 4...

Page 38: ...lZ ia a f 1 V V V I V H I V 7V Fl V V W V W 1S L l i FB Fl t rR Jgi i 2 2 8 8 8 o s f J i fZlll ji i f s s H r c7 _06 81ZD L i _ 1 8 1 J J 8 A O ij it Ji J 1 1 J 0 j 1 gl i 1 t ij i 1 1 r J w J Ii J F_ l l Br BCJl T J 1 1 J 1 f l JfJl Jr 1 1 w11 i 1 11 1 J l l i 42 1 _ liQ J CJ a I I I I b J I n I I I I I _I 1 a i l I 5 l i JIU l II r I I I I Rll2 CHAN 1 R313 R511 CHAN 3 CHAN 5 R611 CHAN 6 R412 CH...

Page 39: ...tive will contact you concerning any change in part number Change information if any is located at the rear of this manual SPECIAL NOTES AND SYMBOLS XOOO Part first added at this serial number OOX Part removed after this serial number ITEM NAME In the Parts List an Item Name is separated from the description by a comma Because of space limitations an Item Name may sometimes appear as incomplete Fo...

Page 40: ...25 00 179 2726 00 131 0096 00 131 0294 00 151 0373 00 260 1960 00 120 1257 00 156 0277 00 5 2 Description ECB Main Board Assembly ECB Digital Multimeter ECB Lower Panel ECB Interconnect ECB Power Supply CABLE Interconnect CABLE Connector No 1 CABLE Connector No 2 CABLE Negative Metering CABLE Positive Metering CABLE Negative Program CABLE Positive Program CABLE AC CABLE Power CONNECTOR 32 Pin Male...

Page 41: ...ription GUIDE Slide MARKER ldent HANDLE Carrying 2 COVER Handle End 1 SHIELD Elec HV Rotary SW KNOB CHANNEL SELECT 4 INSERT Foot GROMMEJ Plastic Black 2 SPACER Post 6 INSULATOR Mica A R THERMOFIT 1 SUPPORT Plug in 2 CLAMP Cable CLAMP Cable 2 CLAMP Cable 2 CLAMP Cable 2 CLAMP Cable 2 CLAMP Cable 2 CLAMP Cable HOLDER 3 Wire 0 1 Spacing HOLDER 2 Wire 0 15 Spacing TERMINAL Lug 0 12 ID TERMINAL Lug 4 4...

Page 42: ...HANICAL PARTS LIST INSTRUMENT CHASSIS ASSEMBLY Cont Part of 067 0883 99 Quantity 23 2 2 2 1 8 2 2 4 17 2 13 1 9 6 4 2 5 4 Description SCREW 6 32 x 0 312 Flathead SCREW 6 32 x 0 375 Panhead SCREW 6 32 x 0 500 Panh ead SCREW 6 32 x 0 500 Flathead SCREW 6 32 x 0 625 Flathead SCREW 6 32 x 0 750 Fillisterhead SCREW 8 32 x 0 375 Flathead NUT 2 56 NUT 4 40 Keps NUT 6 32 Keps NUT 6 32 WASHER Intl WASHER S...

Page 43: ...06 02 311 2070 00 311 2053 00 315 0123 00 315 0154 00 321 0097 00 260 0247 00 Description ECB Digital Multimeter ECB Lower Panel CONNECTOR BNC EXT IN 1 OV SYNC RIPPLE OUT RIPPLE OUT VARIABLE RESISTOR 75k 2W 10 Linear OVER VOLTAGE TEST VARIABLE RESISTOR Dual w switch 5k 1 2W 20 Linear CURRENT ADJUST RESISTOR 12k 1 4W 5 RESISTOR 150k 1 4W 5 RESISTOR 100 ohm 1 8W 1 SWITCH SPST Push CURRENT LIMIT 5 5 ...

Page 44: ...NT PANEL ASSEMBLY Part of 667 0883 00 Quantity Description PANEL Front Top PANEL Front Lower SUB PANEL Front Top SUB PANEL Front Lower WINDOW Readout FRAME Readout Window KNOB CURRENT ADJUST Outer KNOB CURRENT ADJUST Inner KNOB OVER VOLTAGE TEST 6 SCREW 2 56 x 0 188 Panhead 2 SCREW 2 56 x 0 375 Panhead 4 SCREW 4 40 x 0 250 Panhead 4 SCREW 4 40 x 0 250 Flathead 3 NUT 6 32 4 NUT Sleeve 4 40 1 WASHER...

Page 45: ...SSEMBLY Part of 667 0883 00 Tektronix Part No 159 0074 00 119 1024 00 119 0389 00 260 1842 00 260 1780 00 179 2725 00 5 7 Description FUSE 1 0 Amp 250V 0 35 sec FAN 115 CFM 115V 18W FILTER RCPTL RFI 60Hz 3A SWITCH Rocker DPST 16A 250 VAC POWER SWITCH SWITCH Slide DPDT 3A 125V 250V WIRING HARNESS AC Power ...

Page 46: ...IT MECHANICAL PARTS LIST REAR PANEL ASSEMBLY Part of 067 0883 99 Quantity Description 1 GUARD Fan 1 CHASSIS Calib Fix Lower Fan 1 CHASSIS Calib Fix Upper Fan 1 LABEL GND Marker 1 HOLDER Fuse LUG Solder COVER Fuse COVER Fuse 1 COVER Filter 1 COVER Power Switch COVER Fan Guard 2 SCREW 4 40 x 0 250 Panhead 2 SCREW 4 40 x 0 375 Panhead 1 SCREW 6 32 x 0 375 Panhead 1 SCREW 6 32 x 0 750 Panhead 1 NUT Ke...

Page 47: ...CAL PARTS LIST MAIN CIRCUIT BOARD ASSEMBLY 650 0138 00 Tektronix Part No 670 6052 00 260 0678 00 151 0616 00 151 0426 00 151 0477 00 151 0606 00 161 0625 00 151 0607 00 5 9 Description ECB Main Complete SWITCH Thermal TRANSISTOR TIP36A Power PNP Si TRANSISTOR D44H11 Power NPN Si TRANSISTOR TIP35A Power NPN Si TRANSISTOR TIP142 Power NPN Si TRANSISTOR D45H11 Power PNP Si TRANSISTOR TIP147 Power PNP...

Page 48: ...0004 00 UNIVERSAL LOAD UNIT MECHANICAL PARTS LIST MAIN CIRCUIT BOARD ASSEMBLY 650 0138 00 Quantity Description HEAT SINK SUPPORT Heat Sink 20 INSULATOR 11 SPACER Post 2 LUG Solder 6 SCREW 6 32 x 0 500 Panhead 11 SCREW 4 40 x 0 188 Panhead 50 SCREW 4 40 x 0 312 Panhead 11 SCREW 4 40 x 0 500 Fillisterhead 59 WASHER Split 48 WASHER Flat 12 WASHER Shld 11 WASHER ltl 5 10 ...

Page 49: ...LOAD UNIT ELECTRICAL PARTS LIST MAIN CIRCUIT BOARD 670 6052 00 Tektronix Part No 670 6052 00 283 0010 00 283 0100 00 283 0339 00 283 0114 00 283 0104 00 283 0005 00 283 0110 00 283 0164 00 283 0177 00 152 0141 02 5 11 Description ECB Main Complete CAPACITOR 05uF 50V Ceramic CAPACITOR 4700pF 200V Ceramic CAPACITOR 0 22uF 50V Ceramic CAPACITOR 0015uF 200V Ceramic CAPACITOR 002uF 500V Ceramic CAPACIT...

Page 50: ... 670 6052 00 Tektronix Part No Description 152 0141 02 DIODE 1N4152 Signal Si 152 0676 00 DIODE 1N5625 Rectifier Si 159 0162 00 FUSE 30A Medium 159 0038 00 FUSE 1SA Medium 159 0014 00 FUSE SA Fast 151 0103 00 TRANSISTOR 2N2219A Signal NPN Si 151 0526 00 TRANSISTOR 2N3896 Thyrister 151 0347 00 TRANSISTOR 2N5551 Signal NPN Si 151 0521 00 TRANSISTOR C1228 Thyristor 151 0134 00 TRANSISTOR 2N2905A Sign...

Page 51: ...15 910 911 1010 1011 1109 1209 R112 212 313 413 511 611 712 812 913 1013 1111 1211 UNIVERSAL LOAD UNIT ELECTRICAL PARTS LIST MAIN CIRCUIT BOARD Cont Part of 670 6052 00 Tektronix Part No 321 0290 00 321 0310 00 315 0201 00 315 0200 00 311 1557 00 5 13 Description RESISTOR 10 2k 1 8W 1 Mtl Flm RESISTOR 16 5k 1 8W 1 Mtl Flm RESISTOR 200 ohm 1 4W 5 Carbon RESISTOR 20 ohm 1 4W 5 Carbon VARIABLE RESIST...

Page 52: ... PARTS LIST MAIN CIRCUIT BOARD Cont Part of 670 6052 00 Tektronix Part No 301 0101 00 315 0302 00 315 0560 00 315 01 00 00 308 0769 00 321 0001 00 321 1646 03 321 0102 00 321 0333 00 321 0337 00 315 0097 00 5 14 Description RESISTOR 100 ohm 1 4W 5 Carbon RESISTOR 3k 1 4W 5 Carbon RESISTOR 56 ohm 1 4W 5 Carbon RESISTOR 10 ohm 1 4W 5 Carbon RESISTOR 1 ohm 3W 1 WW RESISTOR 10 0 ohm 1 8W 1 Mtl Flm RES...

Page 53: ...IVERSAL LOAD UNIT ELECTRICAL PARTS LIST MAIN CIRCUIT BOARD Cont Part of 670 6052 00 Tektronix Part No 315 0102 00 315 0331 00 321 0414 00 308 0815 00 321 0296 00 321 0129 00 321 0431 00 301 0153 00 321 0126 00 308 0769 00 5 15 Description RESISTOR 1k 1 4W 5 Carbon RESISTOR 330 ohm 1 4W 5 Carbon RESISTOR 200 k 1 8W 1 Mtl Flm RESISTOR 01 ohm SW 25 WW RESISTOR 11 8k 1 8W 1 Mtl Flm RESISTOR 215 ohm 1 ...

Page 54: ...156 00 156 1191 00 152 0195 00 152 0571 00 152 0268 00 152 0149 00 152 0282 00 152 0287 00 152 0395 00 152 0247 00 152 0255 00 136 0514 00 131 0589 00 131 0608 00 131 1687 00 131 1816 00 5 16 Description IC LF356N Op Amp IC TL072CP Op Amp ZENER DIODE 1N751A 5 1V 4W ZENER DIODE 1N966B 16V 4W ZENER DIODE 1N979B 56V 4W ZENER DIODE 1N961 B 10V 4W ZENER DIODE 1N972B 30V 4W ZENER DIODE 1N986B 110V 4W ZE...

Page 55: ...0 21 0 0586 00 162 0684 00 211 0008 00 UNIVERSAL LOAD UNIT MECHANICAL PARTS LIST MAIN CIRCUIT BOARD 670 6052 00 Quantity Description 4 NUT 25 28 1 4 24 NUT Keps 4 40 1 167 feet SLEEVING Elec 16 AWG 24 SCREW 4 40 x 250 Panhead 5 17 ...

Page 56: ...OR 1uF 50V Mtl d Polycarb C4017 283 0635 00 CAPACITOR 51 pf 100V Mica C4018 281 0773 00 CAPACITOR 01 uF Ceramic C4020 283 0054 00 CAPACITOR 150pF 500V Ceramic C4021 4022 283 0687 00 CAPACITOR 560pF 300V Mica C4023 4024 283 0158 00 CAPACITOR 1 0pF 50V Ceramic CR4002 4003 150 1001 00 LED MV5024 Red 6001 6002 6003 6004 6005 6006 6007 6008 6009 6010 6011 6012 6013 CR4004 4005 152 0324 00 DIODE TD55125...

Page 57: ...0360 00 315 0472 00 315 0752 00 311 1235 00 315 01 03 00 Description TRANSISTOR 2N5308 Signal NPN Si TRANSISTOR 2N3906 Signal PNP Si TRANSISTOR 2N3904 Signal NPN Si TRANSISTOR SD210 MOS FET N Ch TRANSISTOR MPSA65 Signal PNP Si TRANSISTOR 2N5769 RESISTOR 6 8k 1 4W 5 Carbon RESISTOR 390 ohm 1 4W 5 Carbon RESISTOR NETWORK 9M 900k 90k 9k 900 ohm 90 ohm 10 ohm DIP VARIABLE RESISTOR 25k 1 2W 10 Linear R...

Page 58: ... 0751 00 315 0202 00 315 0510 00 315 0241 00 315 0150 00 315 0561 00 315 0161 00 315 0243 00 321 0289 00 321 0481 00 315 0302 00 321 0260 00 315 0272 00 5 20 Description RESISTOR 20k 1 4W 5 Carbon RESISTOR 1k 1 4W 5 Carbon RESISTOR 1 8k 1 4W 5 Carbon RESISTOR 1 2k 1 4W 5 Carbon RESISTOR 330 ohm 1 4W 5 Carbon RESISTOR 680 ohm 1 4W 5 Carbon RESISTOR 750 ohm 1 4W 5 Carbon RESISTOR 2k 1 4W 5 Carbon RE...

Page 59: ...31 1343 00 5 21 Description SWITCH Toggle 4PDT VOLTAGE CURRENT TRANSFORMER Line Freq IC LD120 Analog A to D IC 74LS04 TTL Hex Inverter IC LD121 Digital A to D IC 74C48 CMOS BCD to 7 Seg Decoder IC LM399H 6 95V Reg IC 74LS390 TTL Dual Decade IC 74LSOO TTL Quad 2 lnput NANO IC 74LS02 TTL Quad 2 lnput NOR IC 74LS10 TTL Triple 3 lnput NANO IC 74LS191 TTL Syn 4 bit Up Own Binary IC 74LS42 TTL BCD to De...

Page 60: ...89 00 131 0608 00 131 0767 00 213 0034 00 UNIVERSAL LOAD UNIT MECHANICAL PARTS LIST INTERCONNECT CIRCUIT BOARD 670 6051 00 Quantity 5 22 Description CONN ECTOR Rcpt Elec TERMINAL Pin TERMINAL Pin TERMINAL SET Pin SCREW 4 40 x 312 Panhead ...

Page 61: ...0 00 Tektronix Part No 670 6050 00 281 0775 00 152 0141 02 151 0188 00 315 0152 00 315 0200 00 260 1335 00 260 1206 00 156 0383 00 5 23 Description ECB Lower Panel Complete CAPACITOR 1 uF 50V Ceramic DIODE 1N4152 Signal Si TRANSISTOR 2N3906 Signal PNP Si RESISTOR 1 5k 1 4W 5 RESISTOR 20 ohm 1 4W 5 SWITCH Toggle SPOT MAX MIN 1 thru MAX MIN 12 and CHOP SWITCH SWITCH Toggle SPOT Center Off HI LOW IND...

Page 62: ...ITOR 9600uF 30V Elactr CR3001 3002 152 0488 00 DIODE RECTIFIER KBP02 Bridge CR3003 3004 152 0066 00 DIODE 1N4004G Rectifier Si 3005 F3002 3003 159 0022 00 FUSE 1A Fast 250V 3004 3005 3006 K3002 148 0022 00 RELAY 12 VDC Armature 2 Form C 03001 3004 151 0373 00 TRANSISTOR Power MJE2901 PNP Si 3005 3008 03002 3006 151 0462 00 TRANSISTOR Power TIP30C PNP Si 03003 3007 151 0188 00 TRANSISTOR Signal 2N3...

Page 63: ...056 6059 6062 6065 6068 6071 6074 6077 R6003 6009 6015 6021 6027 6033 6039 6045 6051 6057 6063 6069 6075 UNIVERSAL LOAD UNIT ELECTRICAL PARTS LIST POWER SUPPLY BOARD Cont Part of 670 6052 00 Tektronix Part No 321 0299 00 315 0302 00 311 1567 00 308 0677 00 321 0296 00 321 0143 00 321 0297 00 Description RESISTOR 12 7k 1 8W 1 RESISTOR 3k 1 4W 5 VARIABLE RESISTOR 100 ohms 1 2W 20 RESISTOR 1 ohm 2W 5...

Page 64: ... 6049 00 Tektronix Part No 156 0277 00 156 0071 00 156 0105 00 156 0411 00 388 6546 01 136 0394 00 136 0269 02 136 0514 00 131 0589 00 131 0608 00 344 0154 00 5 26 Description IC uA7805UC Linear IC uA723DC Linear IC LM301 AN Op Amp IC LM339N Linear ECB w o components SOCKET Relay SOCKET Relay 14 pin SOCKET Relay 8 pin TERMINAL Pin TERMINAL Pin HOLDER Fuse ...

Page 65: ...g device heat sink s Switch or contactor circuit board etc heat radiator etc T Transformer AT Attenuator fixed or variable HR Heater TC Thermocouple B Motor HY Hybrid circuit TP Test point BT Battery Connector stationary portion u Assembly inseparable or non repairable c Capacitor fixed or variable K Relay integrated circuit etc CB Circuit breaker L Inductor fixed or variable v Electron tube CR Di...

Page 66: ......

Page 67: ...Component Location Diagram MAIN BOARD 670 6052 00 ...

Page 68: ...R PANEL 18 CHANNEL 1 l C I P o at iP2 0I CHANNEL 2 d3 0A38 PIO 6 70 013 8 oo R717 24 1 R718 56 C702 004 7 12v6 R8 7 ZH R818 5 ceo z 0047 llVB C703 1 0 1 VB 271 1 10 R813 JOo v w _87 12VB R815 20 G803 1 0 RBI 10 P o Pf REAR PANEL R607 6 SK l RB02 lloV G R820 o R82 I 4T IO O Jl302 R8 Z2 03 Je8Z 3 4T IO O q 437 0 P o P o f _ P701 l P705 V r R7 3 R714 zo 18 CMANNEL 7 R 125 10 0 9F P o 3 P801 CHANNEL 8...

Page 69: ...905 132 8 1 1 30 311 I i J k 823 825 12 VB 12va tc o t1 2 13 A 25 K 12va e 1 1 R 118 100 0 I k RI0 7 100 0 C f04 002 RIOOS i O 12V8 7 12VB RI0 2 t2VB 200 0k l lf 013 fll f25F 12va RI0 8 II croo f ooz fe903 8 71 VR90I IOV c c toz oo S C f X3 i 0015 1 911 2 0 C 002 0015 C 003 i 001s R 01 20 R 005 zk Vz W R104 3 ok Vte Oi 30Vz C 04 R915 CR 105 V 1 106 VRIOOZ 30V II P o Pl REAR PANEL R 20 01 4T OZ H 0...

Page 70: ...Rl 01 JJ 8K R 102 215 Cl OZ oors C 103 f 0015 v R 104 30 VRl 03 SIV i 108 10 12V8 r12V8 R 1110 f 200 ok Riii ____ 25K 12ve Jgj Rll 2 1 1113 200 0 2 00 Rl 14 10 R 115 11 I lb 15 Vzw Vte 05 C 105 2 Z R 1117 f 2 118 12 IB f l l 0 12 16 zoo OK f f tZll 111 NV 7 25k 0 11 VB Rl l 1 3 2 00 j_ C 1 0q oo5 CIZ lZ oms cn 03 T 0015 v RIW8 10 11 4T IC Z04 30 k V1 1203 5 V Rl214 0 R 2 S IK Cl 2 05 2 2 1 1211 IL...

Page 71: ...S2 007 0397 moszooa m 2 s t009 r 0397 S tOO D3 7 S 200 0397 S to o4 1 34 0397 t__ 9 c z 1 23 UltOO s 6 01 11 z1 c1 r1 Component Loaction Diagram LOWER PANEL BD 670 6050 00 I ...

Page 72: ... HI LOW IND s a110 1 2110 5K NI mB ll OLfYW ruo P2121 0 7 0B J3 j9 RZ 112 5 Vo i2 0N t R2114 SK R2118 SK 670 6050 00 Q2 00 S20 2 HIGH AIL 3 9v r l 1 t n IQ ID I t I l c J If It It o i LOW R PANEL BOARD REV 13 3 79 ...

Page 73: ...J7 EJ SJ CJ J8 D D D D P l h__ J 0 JIOQ D Component Location oi agram POWER SUPPLY BD 670 6049 00 ...

Page 74: ...lpf 3009 6 7 1 1 V v 0 5 U3003 I I C1LlL R3010 100 BllL R3ors 300 r J C300 2Z 25V R3Dl3 6 041 __ Jl 3 I V C J825 J 25 J P4007 f 820 U3001 f l 3006 Q 300 Q3004 Q3003 f Q3008 l t A7SUNk FROM 670 6049 00 ARE Pl YSICAUY LOCATl D ON THE POWER SUPPLY CHASSIS e3014 IJL W P f 007 1 WHITE lC J 0 4 1 _ nc C 3010 cg 3000 41 l I 2 _BROWN 3002 G 10 2 31 U 3004 7Z3 f 30 tD 8 451 ORANGE YcLL W 0R c N __ l__i e _...

Page 75: ...3 9 12V 6 Rt00 5 13 PIS A 35 JIS A ia 12vs R6o3 I BK RG03 2 835 301 8 38 R6035 301 RIOOi36 11 JK 1 2 0016 AIB 6 1 21 CRtOOO Al I s f4M JJ Q t 1ive Al3 CRG 010 A14 12 V8 P o 670 6043 00 NOTE la st two d1g1ts of CR number Indicate correspond1n3 LED channel number 818 81 1 prj OD3 ___ J A3 S 1 _ I 111 AA A z i B2 POWER 5UPPL BOARD PA f2TJAL POWEi SU PPLV REV C 6 79 ...

Page 76: ...Component Location Diagram DIGITAL MULTI METER BOARD 670 6043 00 ...

Page 77: ...ff 067 0883 99 4 3 G 4V 245 7 0 KHz 5V 1t U4ooe 4LS3fO CLOCK i3CD 01 JTPUT LINES PIJV 4 U4 0ll c Pllll 10 U4022 A If u oo 3 LP 121 tBPIN DIP s u o 11 D CONV RTEiEcs 15 11 5V I I 1n1 I n I U4023A XTERNAL INPUT llMPLJFIEI IZVB SVA C4016 DIGITAL MUlTl MtfEI 0 BOARD REV C 7 79 ...

Page 78: ...S CHAN 12v 13 R E R Pf INEt CONNfECTO f cC b U JER StLtCiE D 00 S OLDE R PAD S 12 VB II PA i TIAL INTE RCOJVNECT B D CHAN 4 V s NSt LOW SENSE CHAN 5 V SFN SE D D LOW St NSE Roe 6 50 52 R 5178 56K 1 ZV13 R 5081 0 K C c 5025 R5085 RSOB 8 2kt 21 v S l SG l 1 A A A A ZZ242521 2 CHAN 6 IZ VS PLUG IN MODULE PROGRAM BOARD ...

Page 79: ...M OlJ llJ LUG UNDER CURRENT LIMIT PU SHSUTTON ro tJ v ADJUST POT HI END V sJ o o J 301 1 V s4 0b o J l 2 Vs 7 o o J101 Vs 0 0b 0 C JIOOH o A C 13 P4002 3 S4010 P 400 i t Jll b1J Ls JO i b o j 00 Ls 11 c o JllOl S Lsl 0c o J 201 3 CHANNEL P400b 4 IZ Ve P 1006 8 12Vc 0 0 0 0 0 0 0 P400f I i llO J _ _ _CT TEST SlJ TCHE5 REV 8 6 l J ...

Page 80: ......

Page 81: ...trudes from the rear of the module and is used as the electrical mating connector when the plug in is installed into the Universal Load Unit The Programming Plug in module may be modified to program a Load Unit to facilitate performance checking the power supplies in a specific Tektronix instrument This modification process includes the selection of four precision resistors for each supply to be t...

Page 82: ...ive modes of power supply loading are desired either the Rp or the RF High and Low resistors but not both are selected The High and Low resistors need not be selected in the same mode however For example an RpH and an RFL may be used in the same channnel if a high constant current load and a low resistive load were desired Channel 13 only has two selectable resistors associated with it R Compariso...

Page 83: ...define the relationships betweeen the High and Low resistor values the voltage of the power supply being loaded and the desired High and Low load currents 249 High Current Cells RP in k ohms Is Rf in k ohms Vs 24 9 01 Is 100 RP in k ohms Is Medium Current Cells Vs Rf in k ohms 10 01 Is 20 RP in k ohms Is Low Current Cells Rf in k ohms Vs 2 1 Is RLoad in ohms Vs Channel 13 Is A 3 ...

Page 84: ...eled to achieve the desired load Paralleling Two Cells Before two cells may be paralleled at least two conditions must exist both cells must be of the same polarity and both cells must be operated within the permissible regions of their Safe Operating Area Curves It is also important to attempt to share the load so that both cells are operating at about the same percentage of their full power capa...

Page 85: ...0 8 32 4 Resistive 130 0 022 Resistive The 5 2 volt supply should attract our attention first because it has the largest current requirement Consulting the Safe Operating Area Curve for high current cells we find that the maximum safe operating current at 5 2 Volts is about 23 Amps while we need to be able to handle 32 4 Amps By consulting the Safe Operating Area Curve for medium current cells we ...

Page 86: ...de continuous cooling fan operation The relevant equations follow Cell 8 High Current Vs 5 2 Rns 24 9 on 24 9 on 5 98k 20 8 5 2 Rfh8 24 9 01 24 9 01 5 53k 22 4 Cell 9 Medium Current 5 2 Rfl 9 10 01 10 01 10 3k 5 0 Vs Rfh9 10 01 10 01 5 1k Is 10 5 2 Comparison Resistors Rcomp8 Rcomp9 vs 5 2k Out of Regulation Tolerance 30 30 Tol no RDes 2 5 2 5 8 3 5 2 For now let us assume that this OUT OF REGULAT...

Page 87: ...ells 1 0 0 5 x cell max Specifically in our case Current Accuracy low cell 0 022A x 1 0 25 x 2A 0 00522A Expressed as a percentage of the desired current this is 0 00522 Current Accuracy 24 0 022A At such low currents the percentage accuracy has become intolerable and we would be better off using a simple direct load resistor rather than a low current cell Substituting into the channel 13 equation...

Page 88: ... 0k Is 0 8 Rcomp5 vs 50 0k 30 30 Tol no Rnes 2 5 2 5 3 1 vs 50 0 Desensitizing If the Out of Regulation tolerance generated by the comparison circuitry is inadequate the tolerance window can be opened by using Rnes In fact channels which are not being used can have their OUT OF REGULATION indicators disabled by the installation of shorts in the Rnes location of those channels The following equatio...

Page 89: ... the nominal percentage tolerance of the comparison circuitry in channel five was calculated to be 3 1 If that were inappropriate to that 50 volt supply and a tolerance of 10 were desired instead we would substitute those values to obtain 30 Rnes5 10 30 50 0 2 5 A 9 4 35k ...

Page 90: ...I I I I I I I I I I I I I I 111111111111 I I I I I I I I 1111 ITFTTTFI 1111111111 I I I I TTrrr I I I I I I I 11111111111111 I I I I I I I 11111111 11111111 i III I I I I I I I I 1 I I I I I 1111 11111111 I I I I I I I 111111111111111111111113 fi _Li_ I m tm H tff1T 1111 Ii I I I rr 1 i lt I SAFE OPERATING AREA CURVE N m11 1tl liliilil1lif11 H H NTii w rtl 1iT 10 _ _ lE i lltf _ _ i ffi _ _ m T L ...

Page 91: ... I i I I I m r _L _ f 8 1 I 1111 l i I I I 111 1 I I I I µ_w_ I 111 1 I i i I I I l liri I I 11 11 11 11 111 1tT1 1 lil J ll l 1t 1 1 11 1 I n 1 i I II ill It I 4i i I I I I i i II _L_i i T I I I 2 I 1 i If I I1 i ILi j_w J I 1 1 i 1 1 i I __ _ 1 c _ 1 i __ I t 1 1 I i i I 11 I 11 II I I I I I Ii I I I r I I 1 I I I I i i 1 Cl 9 r _ r H t r_ l _ rn 9 8 ___ ____ _ I r t tc __ _J j T t _ t t r f 8 Q...

Page 92: ...rnrn r 1z1 ttlill I I I I I I llllllllllilllllllllllll lllll tlllllllllllil l ililll t ct i I Cl 1 t I I I_ I I I I l I toU _ i f c 4 T i 9 I c 1 1 1 t t i r r T l c 1 f t c f L 8 I f f j l Tt t i 1 f t f t L I J t c i r 1 l r r e 7 ZS _ 1 H j i r I _j 6 0 ru r t 1 1 1 1 1 1 1 1 1 1 11111111 111 1 1 1 1 1 1 1 1 11 111 J W l l l 1 i ttttt r 1 1 1 1 1 11 1111 1 11 111111 11H T ffit v 1 t r L i d H 1...

Page 93: ... Top 337 1 064 04 2 SHIELD Elec Plug in Side 348 0235 00 2 SHIELD GASKET Elec 366 1 058 00 1 KNOB Gray 0 625 x 0 255 x 0 485 in 105 0075 00 1 BOLT Latch 105 0076 02 1 RELEASE BAR Latch 214 1 095 00 1 PIN Spring 0 187 L x 0 1 OD Stl Cd PI 214 1280 00 1 SPRING Helical Music Wire 214 1 054 00 1 SPRING Flat 214 1061 00 1 CONTACT Elec Cu Be 211 0105 00 6 SCREW 4 40 x 0 188 Flathead 211 0116 00 6 SCREW ...

Page 94: ...12 5121 5122 05013 5014 5023 5024 5033 5034 5043 5044 5053 5054 5063 5064 5073 5074 50 3 5084 5093 5094 5103 5104 5013 5014 ULU PROGRAMMING PLUG IN MODULE ELECTRICAL PARTS LIST PROGRAMMING CIRCUIT BOARD UNPROGRAMMED 670 6047 00 Tektronix Part No 670 6047 00 152 0141 02 151 0188 00 151 0190 00 A 14 Description ECB Programming plug in Unprogrammed Complete DIODE 1N4152 Signal Si TRANSISTOR 2N3906 Si...

Page 95: ...08 5117 5118 5127 5128 05017 5018 5027 5028 5037 5038 5047 5048 5057 5058 5067 5068 5075 5076 5085 5086 5095 5096 5105 5106 5115 5116 5125 5126 R5001 5002 5018 5019 5035 5036 5051 5052 5066 5067 5081 5082 5109 5111 5125 5127 5141 5143 5157 5159 5173 5175 5189 5191 Tektronix Part No 151 0443 00 151 0444 00 321 0289 00 Description TRANSISTOR MPSA92 Signal PNP Si TRANSISTOR MPSA42 Signal NPN Si RESIS...

Page 96: ... 5104 5120 5136 5152 5168 5184 R5008 5025 5042 5057 5072 5087 R5009 5027 5049 5059 5074 5089 R5010 5012 5028 5030 5045 5047 5060 5062 5075 5077 5090 5092 5100 5101 5116 5117 5132 5133 Tektronix Part No 321 0200 00 321 0220 00 315 0822 00 315 0202 00 321 0222 00 321 0280 00 315 01 03 00 Description RESISTOR 1 18K 1 8W 1 Mtl Flm RESISTOR 1 91K 1 8W 1 Mtl Flm RESISTOR 8 2K 1 4W 5 Carbon RESISTOR 2K 1...

Page 97: ...79 5094 5114 5130 5146 5162 5178 5194 5015 R5096 R5102 5105 5118 5121 5134 5137 5150 5153 5166 5169 5182 5185 R5107 5123 5139 5155 5171 5178 Tektronix Part No 315 0102 00 315 0562 00 315 0511 00 315 0563 00 308 0643 00 315 0302 00 315 0912 00 A 17 Description RESISTOR 1K 1 4W 5 Carbon RESISTOR 5 6K 1 4W 5 Carbon RESISTOR 510 1 4W 5 Carbon RESISTOR 56K 1 4W 5 Carbon RESISTOR 1 ohm 3W 3 WW RESISTOR ...

Page 98: ......

Page 99: ...CHANNEL 7 CHANNEL 8 CHANNEL 9 CHANNEL 10 CHANNEL 1 CHANNEL 2 CHANNEL 3 CHANNEL4 CHANNEL 11 CHANNEL 5 CHANNEL 12 CHANNEL 6 Component Location Diagram PROGRAM BOARD 670 6047 00 670 6418 00 670 6419 00 ...

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