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35V/10A - CASE PARTS - UNIQUE
18V/20A - CASE PARTS - UNIQUE

Part Number

Description

Position

20030-0263

WASHER M3 ZPST

BLANKING PIECES

20234-0012

SCREW M3 X 8 PNHDPZ ZPST

BLANKING PIECES

20657-0072

CAP BLK LINE C211 GREY 99

20657-0070

KNOB 21MM DA217 180 GREY 99

31334-0100

BLANKING PIECE - 9WAY "D"

31334-0110

BLANKING PIECE - 24WAY "IEEE"

43171-1120 CONNECTOR

CONTROL/MAIN

48511-0120 INSTRUCTION

SHT

35V/10A PROG - CASE PARTS - UNIQUE
18V/20A PROG - CASE PARTS - UNIQUE

Part Number

Description

Position

20038-9503

WASHER M3.5 SPRING

CPU PILLARS

20062-9305

SCREW No.6x3/4" Pozi. Pan

CPU PILLARS

20661-0408

SPACER Rnd/Hex/ST 2.5"L Plas

37511-0480

LABEL – GPIB

37511-0490

LABEL - RS232

43171-1130 CONNECTOR

CPU/MAIN

48511-0130 INSTRUCTION

BOOK

Содержание TSX Series

Страница 1: ...TSX Series High Current Power Supplies Service Manual Book Part Number 48511 0240 Issue 2...

Страница 2: ...trical Safety Considerations 15 Temporary Earthing for Primary Side Measurements 15 Order of Checks and Adjustments 15 Directions for Different Types 15 Test Equipment required for Recalibration only...

Страница 3: ...the power supply 1 To remove the case upper remove the 6 screws 3 each side and lift off 2 To remove the upper CPU pcb on programmable versions remove the 3 flat cables and the 2 way supply connector...

Страница 4: ...tion delay 200us Protection functions Overvoltage trip Regulator overtemperature Sense miswiring Status indication Output on off LED Constant voltage mode LED Constant current mode LED Trip message Ou...

Страница 5: ...E488 2 Output Specifications Remote Operation Output Voltage Setting 12 bit resolution 10mV steps Output Current Setting 12 bit resolution 10mA steps Setting Accuracy Voltage 0 1 10mV Current 0 2 20mA...

Страница 6: ...5...

Страница 7: ...ion to avoid sudden connection of rectified mains voltage to reservoirs C9 C10 Once turned on TC1 remains conductive until AC supply ceases or falls to a very low level unlatching Q5 Q6 If TC1 fails t...

Страница 8: ...D22 generates enough voltage across R156 to turn on Q3 Q7 regeneratively via spike filter R121 C68 PWM output is immediately inhibited and soft start capacitor C18 discharged If the cause of overcurre...

Страница 9: ...sist stability while D31 D39 Q28 speed amplifier overload recovery R128 is selected to normalise control loop gain Switchmode Shutdown Control In normal operation ENABLE and ENABLE bar are high and lo...

Страница 10: ...tput switch or CPU board in programmable versions via debounce C35 R26 When output is switched off OPON goes low so that CMOS analogue selector IC7 A applies a low negative voltage from R72 R73 to IC5...

Страница 11: ...e output Coaxial toroidal choke L4 and front panel mounted ceramic capacitors CA CB CC form a lowpass HF filter attenuating common mode and differential noise generated within the power supply R57 58...

Страница 12: ...owing Preset Volts Preset Current OVP Output Volts Output Current The multiplexers are controlled by the latch IC6 which also drives the additional indicator LEDs this latch is driven by the microcont...

Страница 13: ...trip level The output on off switch connected at SW1 drives the output off on control line OPON bar providing off on control at the main PCB via PJ1 33 The two 4 digit LED displays are driven by IC1 v...

Страница 14: ...provides the 1 6ms clock used as the NMI signal the various clocks used to specify the RS232 interface baud rate and the 600Hz buzzer drive The 1 6ms clock is used by the CPU as follows Six ticks are...

Страница 15: ...atch is driven by the microcontroller The decision on what to measure and or display at any time is taken by the microcontroller and in order to do this correctly a number of status signals are monito...

Страница 16: ...Q1 2 mount bolts to protect the user and the external PSU during these measurements Not that this negates the protection normally provided by the isolation transformer and earths the particularly easi...

Страница 17: ...ly torqued Remove HV bridging connector from PJ4 Earth primary side circuitry at Q1 2 mounting screws on SK1 Link sense input from PJ3 to its corresponding output terminal using 2 pin polarised connec...

Страница 18: ...approx 0 7 usec iii Voltage swinging between approx 0 9V and 2 8V iv Fast rising section over first approx 0 7 usec of ramp 3 Check Power On Soft Start Connect CRO via X10 probe to IC1 pin 8 Turn main...

Страница 19: ...nd CI LEDs should be off the Output LED on and both displays reading zero 2 Control Board Adjustments non programmable versions If the control board is suspect carry out this stage as described under...

Страница 20: ...s to display about 4V and Current control to minimum The CI LED should come on Adjust VR8 for zero DVM reading within 20mV Note and avoid saturated region below about 20mV Disconnect load after test...

Страница 21: ...M3 X 20 PNHDPZ ZPST FOR D14 Q4 20234 0038 SCREW M3 X 40 PNHDPZ ZPST FOR T1 20611 0003 BUSH POLYESTER TO220 J22 5006 FOR Q4 IC4 20613 0012 WASHER NON INSULATING FOR Q1 Q2 20613 0013 WASHER MICA T03P FO...

Страница 22: ...23185 1470 RES 470RJ W25 CF RD25S B R R30 31 121 134 23185 1560 RES 560RJ W25 CF RD25S B R R47 48 23185 2100 RES 1K0J W25 CF RD25S B R R2 33 49 51 78 23185 2120 RES 1K2J W25 CF RD25S B R R24 23185 215...

Страница 23: ...3202 4220 RES 220KF W25 MF 50PPM R64 68 88 23202 5100 RES 1M00F W25 MF 50PPM R17 23202 5120 RES 1M20F W25 MF 50PPM R56 23202 5220 RES 2M20F W25 MF 50PPM R69 23202 5330 RES 3M30F W25 MF 50PPM R84 23202...

Страница 24: ...7 0676 CAP 470U 63V ELEC RE2 P5 C16 23557 9122 CAP 4700U 16V ELEC RE2 P7 5 C26 23620 0236 CAP 1N0K 100V P E 435 1 P5 C43 23620 0246 CAP 100NK 63V P E P5 C35 23620 0252 CAP 2N2K 63V P E P5 C68 70 71 23...

Страница 25: ...N NPN MPS2369 Q27 30 25383 0505 TRAN NPN BC338 Q8 29 25383 0507 TRAN NPN BC546 Q16 17 25386 0020 TRAN NPN MJE3055 T Q4 25386 9901 TRAN Mounting Clamp FOR TC1 25601 0430 TRAN MOSFET N CHAN 2SK1524 Q1 2...

Страница 26: ...CF RD25S B R R59 23202 1510 RES 510RF W25 MF 50PPM R98 23202 3100 RES 10K0F W25 MF 50PPM R81 23202 3140 RES 14K0F W25 MF 50PPM R65 23202 3174 RES 17K4F W25 MF 50PPM R63 67 23202 4220 RES 220KF W25 MF...

Страница 27: ...CERAMIC 11 54 3557 0 FOR R40 41 2 EACH 23184 0100 RES 10RJ 2W CF R66 75 Vert 23184 1470 RES 470RJ 2W CF R55 Vert 23184 2220 RES 2K2J 2W CF R80 Vert 23185 2100 RES 1K0J W25 CF RD25S B R R73 23185 3330...

Страница 28: ...ING BLOCK RED FOR LK2 3 22575 0064 HEADER 26 WAY 2X13 STR SKEL PJ3 22575 0065 HEADER 20 WAY 2X10 STR SKELN PJ6 22575 0100 HEADER 34 WAY 2X17 STR SKELN PJ4 23185 0220 RES 22RJ W25 CF RD25S B R R2 23185...

Страница 29: ...1N4002 B R D1 4 25130 0903 DIO ZEN 5V1 W4 D7 25341 0214 TRAN PNP ZTX214L BC559 Q3 25380 0229 TRAN NPN BC549 Q1 2 4 5 6 7 27001 0020 OPTO COUPLER CNY17 3 IC21 22 23 24 27106 0530 IC OP297 IC35 27153 00...

Страница 30: ...Description Position 22226 0140 KEYSWITCH DARK GREY K1 2 3 22573 0056 HEADER 16 WAY STR SIL 6 8MM FOR DISPLAYS 22575 0100 HEADER 34 WAY 2X17 STR SKELN PJ1 23185 0220 RES 22RJ W25 CF RD25S B R R25 2318...

Страница 31: ...27231 2730 IC 74HC273 IC6 7 27234 5730 IC 74AC573 IC5 10 27250 2000 IC MCU8 PIC16C55XT P IC1 28502 0010 RESONATOR CER 4MHZ CSA4 00MG XL1 35555 1900 PCB CONTROL PCB ASSY CONTROL 10A UNIQUE PARTS Part...

Страница 32: ...R21 22 23185 3100 RES 10KJ W25 CF RD25S B R R24 23185 3470 RES 47KJ W25 CF RD25S B R R1 2 3 4 23185 4100 RES 100KJ W25 CF RD25S B R R23 23347 0510 POT 10KAX10KA OW2G20BU SPECIAL VR1A B 23557 0611 CAP...

Страница 33: ...0150 AC MAINS RECEP 10AMP 0707 1 33331 1620 REAR PANEL SERIES FRONT PANEL ASSY 10A 46912 0410 FRONT PANEL ASSY 20A 46912 0420 Part Number Description Position 20030 0263 WASHER M3 ZPST PCB FIXING 200...

Страница 34: ...IXING 20657 0060 KNOB KX6621761 LIGHT GREY FOR VR1 20657 0061 CAP KNOB LIGHT GREY 21MM FOR VR1 22040 0030 FERRITE SLEEVE ID 7 87 H 14 27 22219 0050 SWITCH ROCKER DPST SOLDER LUGS MAINS 22450 0020 EYEL...

Страница 35: ...308 SCREW No 6x3 8 Pozi Pan HEATSINK AND CPU PILLARS 20210 0101 NUT M3 ZPST FRONT PANEL PCB STUDS BLANKING PIECES 20210 0102 NUT M4 ZPST FEET 20213 0010 CAPTIVE NUT SNU 1219 17 00 CASE UPPER TO LOWER...

Страница 36: ...34 0100 BLANKING PIECE 9WAY D 31334 0110 BLANKING PIECE 24WAY IEEE 43171 1120 CONNECTOR CONTROL MAIN 48511 0120 INSTRUCTION SHT 35V 10A PROG CASE PARTS UNIQUE 18V 20A PROG CASE PARTS UNIQUE Part Numbe...

Страница 37: ...ain board in positions C76 and C77 see Main Board circuit diagram sheet 1 These improve the rejection of large line borne transients which in extreme circumstances could otherwise damage any or all of...

Страница 38: ...hematic for Iss 5 Main onwards From October 95 the main pcb was modified Iss 6 to add a 22uH choke L2 22154 0130 in the VRECT line to reduce conducted emissions and pcb fuses F2 to F8 to ensure safety...

Страница 39: ...Circuit Diagrams 38...

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Страница 49: ...Thurlby Thandar Instruments Ltd Glebe Road Huntingdon Cambridgeshire PE29 7DR England Telephone 44 01480 412451 Fax 44 01480 450409 e mail sales tti test com web site www tti test com...

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