Tektronix PS 503A Instruction Manual Download Page 1

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Tektronix

COMMITTED

TO EXCELLENCE

503A

DUAL

POWER

SUPPLY

INSTRUCTION

MANUAL

Summary of Contents for PS 503A

Page 1: ...Tektronix COMMITTED TO EXCELLENCE PS 503A DUAL POWER SUPPLY INSTRUCTION MANUAL...

Page 2: ...TEKTRONIX PS 503A DUAL POWER SUPPLY INSTRUCTION MANUAL Tektronix Inc P O Box 500 Beaverton Oregon 97077 Serial Number _______________________ 070 1834 01 First Printing SEPT 1974...

Page 3: ...expose personnel to hazardous voltages These instructions are for qualified service personnel only SECTION 3 ADJUSTMENT 3 1 SECTION 4 MAINTENANCE AND INTERFACING INFORMATION 4 1 SECTION 5 CIRCUIT DESC...

Page 4: ...Fig 1 1 PS 503A Dual Power Supply plug in module PS 503A...

Page 5: ...r light if the supply output voltage is above approximately 10 V These functions are easily verified by momentarily shor ting the output of the supply Installation and Removal CAUTION Turn the powermo...

Page 6: ...remote load is connected as shown in Fig 1 5 ground currents containing the power line frequency could result and create excessive noise and ripple in series with the load Thus floating operation is...

Page 7: ...TM 504 or TM 506 power module that has a high power compartment the current available at either the or outputs is from less than 100 mA to at least 1 A When the PS 503A Is installed in a standard comp...

Page 8: ...nged forspecific applicationsby changing the Zener diode OPERATION The following steps demonstrate the use of the PS 503A controls and connectors 1 Install the PS 503A into preferably the high power c...

Page 9: ...sources with output voltage variable with the load Since both supplies are set for the same output voltage each supply shares equally in the power output PR If one supply is set for a lower output vo...

Page 10: ...upply Each supply must be adjusted individually to obtain the desired output current Series Connected Supplies The outputs of two or more PS 503A s can be con nected in series as shown in Fig 1 8 to o...

Page 11: ...ory notes or performance characteristics for which no limits are specified Table 2 1 ELECTRICAL CHARACTERISTICS Characteristics Performance Requirements Supplemental Information Plus and Minus 20 V Fl...

Page 12: ...of drift in 8 hours Line voltage load and tem perature held constant Supply Isolation from Ground 350 V dc peak ac Dual Tracking Mode Offset Error If the two supplies are set indepen dently to any giv...

Page 13: ...10 to 50 to 10 Hz at 1 minute per sweep Vibrate 15 minutes in each of the three major axes at 0 015 total displace ment Hold 3 minutes at any major re sonance or if none at 50 Hz Total time 54 minute...

Page 14: ...Substitute equipment must meet or exceed the stated requirements All test equipment is assumed to be operating within tolerance Special test devices are used where necessary to facilitate the procedu...

Page 15: ...t high power compartment of the power module 4 Connect the power module to the autotransformer and connect the autotransformer to the line voltage source Set the autotransformer voltage output control...

Page 16: ...ord to the digital voltmeter high input terminal c Check for a current reading of less than 100 mA for the 20 V supply The PS 503A CURRENT LIMIT light should be on d Move the red patch cord from the P...

Page 17: ...00 to 19 980 volts f Adjust the autotransformer 10 below and 10 above the nominal line voltage setting g Check that the voltage reading displayed on the digital voltmeter does not change more than 5 m...

Page 18: ...the 0 20V green binding post and connect it to the junction of the two 4 99 kO 1 resistors Check that the digital voltmeter indicates a dc voltage less than 1 V g Set the digital voltmeter to the 2 v...

Page 19: ...on j Set the PS 503A CURRENT LIMIT control fully ccw k Check that the digital voltmeter indicates a current reading of less than 100 mA The CURRENT LIMIT light should remain on b Turn on the power to...

Page 20: ...p ment is assumed to be correctly calibrated and operating within specification If other test equipment is substituted control settings or calibration setup may need to be altered to meet the requirem...

Page 21: ...red patch cord from the 0 20V red binding post to the digital voltmeter high input terminal and the black patch cord from the COMMON black binding post to the digital voltmeter low input terminal d Tu...

Page 22: ...upply Connect a 10 0 k 1 resistor between pins 28A and 28B Volts supply and pins 27A and 27B on the interface connector Install the PS 503A into aTM 500 Series Power Module Connect a digital voltmeter...

Page 23: ...Disconnect front panel VOLTS control by moving jumper from H H to G G A by pass capaci tor may be needed to stop oscil lations 500 Volt Volts Resistance Programming Output 27 26 Connect by moving jump...

Page 24: ...J 24 Reference Common Common for Instrument Remote V Program or Remote Sense 23 V Sense Input When remote sense is used in ternal sense lines to front panel must be removed A large 50 F at 25 V dc ca...

Page 25: ...rier Slot 8 33 5 V filtered de Collector Lead of NPN Series Pass 7 7 Emitter Lead of NPN Series Pass No connection 6 6 Base lead of NPN Series Pass 17 5 Vac winding 5 5 17 5 V ac winding 11 5 V com m...

Page 26: ...ction Install a 50 F 25 V dc minimum rating capacitor across the remote load To stop oscillations caused by lead length an additional capacitor may be needed across the point marked Cf Combined Suppli...

Page 27: ...across the points marked CF4 and CF REPACKAGING FOR SHIPMENT If the Tektronix instrument is to be shipped to a Tektronix Service Center for service or repair attach a tag showing owner with address an...

Page 28: ...which in turn controls the current through the series pass tran sistor in the Power Module to the load Constant Voltage Current Limited Output Output current or voltage varies when an imbalance occurs...

Page 29: ...located in power module is also increased The increase in the voltage differential between pin 2 and 3 of U45 necessary to drive Q85 and the series pass transistor refer to the discussion of constant...

Page 30: ...ntegrated circuit U1 U1 provides a regulated 5 V output limited at 1 A from pins 2 and 3 to output connectors J1 and J2 on the front panel Over voltage Protection When the voltage at the PS 503A front...

Page 31: ...ive 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...

Page 32: ...OVER NH 03820 27014 NATIONAL SEMICONDUCTOR CORP 2900 SEMICONDUCTOR DR SANTA CLARA CA 95051 28480 HEWLETT PACKARD CO CORPORATE HQ 1501 PAGE MILL RD PALO ALTO CA 94304 56289 SPRAGUE ELECTRIC CO NORTH AD...

Page 33: ...02 SEMICOND DEVICE SILICON 30V 150MA 07910 1N4152 CR55 152 0141 02 SEMICOND DEVICE SILICON 30V 150MA 07910 1N4152 CR60 152 0040 00 SEMICOND DEVICE SILICON 600V 1A 80009 152 0040 00 CR66 152 0040 00 XB...

Page 34: ...CB4745 R42 321 0240 00 B010100 B022064 RES FXD FILM 3 09K OHM 1 0 125W 91637 MFF1816G30900F R42 321 0250 00 B022065 RES FXD FILM 3 92K OHM 1 0 125W 91637 MFF1816G39200F R45 311 1560 00 B010100 B02206...

Page 35: ...0 B010100 B022064 RES FXD FILM 8 45K OHM 1 0 125W 91637 MFF1816G84500F R185 321 0287 00 B022065 RES FXD FILM 9 53K OHM 1 0 125W 91637 MFF1816G95300F R187 321 0224 00 RES FXD FILM 2 1K OHM 1 0 125W 916...

Page 36: ...Options PS 503A OPTIONS No options are available at this time...

Page 37: ...heat radiator etc S T Switch or contactor Transformer AT Attenuator fixed or variable HR Heater TC Thermocouple B Motor HY Hybrid circuit TP Test point BT Battery J Connector stationary portion U Asse...

Page 38: ...K2 C138 D6 CR66 C3 F10 G2 Q170 G6 R28 E3 I R64 C19 F3 C160 K4 CR78 D3 F110 G5 Q185 E5 R29 E3 R66 C20 E3 C167 F5 CR110 H4 Q190 E5 R34 E1 R67 C34 E1 CR145 D5 Q15 F3 Q195 C5 R35 C5 R70 C38 D2 CR10 H4 CR1...

Page 39: ...R185 E5 U35 C5 VR117 F5 R28 E3 1 R64 G2 R90 A4 R142 D5 R187 E4 U45 D2 VR120 E4 R29 E3 R66 G3 R95 B1 R145 C6 R190 E4 U55 D3 VR164 F5 R34 E1 R67 C3 R114 G4 R148 I4 R192 C5 U135 D1 R35 C5 R70 D2 R115 G3...

Page 40: ...efore replacing parts The voltages shown on diagram 1 were taken with the PS 503A front panel controls knob type fully counterclockwise The OUTPUT button was in the ON position No external load was co...

Page 41: ...I8S4 OX R V P FEB IR77 PS 5O3A...

Page 42: ...is 4 qx FL V P FEB IR77 Poweb Supply J bm bowo t above...

Page 43: ...3 F10 H2 Q120 F4 R24 F2 R5S H3 R90 C19 F4 C160 K4 CR78 E3 F110 H5 Q165 F6 R26 E2 R64 G2 R95 C20 F3 C167 G5 CR110 H4 Q170 G6 R28 E3 R65 G2 R114 C34 E1 CR135 D1 Q1S G3 Q185 F5 R29 E3 R67 C3 R115 C38 E2...

Page 44: ...2 R142 D5 R180 D5 U35 C5 VR64 F2 H3 R90 A4 R145 D6 R185 E5 U45 D2 VR117 F5 G2 R95 C1 R148 I4 R187 F4 U55 D3 VR120 F4 G2 R114 G4 R155 H4 R190 E5 U135 D1 VR164 F5 C3 R115 G3 R164 F5 R192 D5 U145 E5 D2 R...

Page 45: ...TO...

Page 46: ...1834 04...

Page 47: ...PARTIAL POWER SUPPLY...

Page 48: ...parately unless otherwise specified ITEM NAME In the Parts List an Item Name is separated from the description by a colon Because of space limitations an Item Name may sometimes appear as incomplete F...

Page 49: ...T 06010 71159 BRISTOL SOCKET SCREW DIV OF AMERICAN CHAIN AND CABLE CO INC P 0 BOX 2244 40 BRISTOL ST WATERBURY CT 06720 73743 FISCHER SPECIAL MPG CO 446 MORGAN ST CINCINNATI OH 45206 73803 TEXAS INSTR...

Page 50: ...X 0 344 OD SE BRS 86928 A373 148 1 16 358 0181 00 1 INSULATOR BSHG CHARCOAL 58474 BB10166G13BX 17 129 0064 01 1 POST BDG ELEC RED 5 WAY MINIATURE 58474 BB10167G2BX ATTACHING PARTS 18 210 0457 00 1 NU...

Page 51: ...5 INCH L 55210 L 2007 1 52 136 0514 00 6 SOCKET PLUG IN MICROCIRCUIT 8 CONTACT 73803 C9308 02 53 260 1332 00 1 SWITCH PUSH STEP SW 80009 260 1332 00 54 361 0384 00 2 SPACER PB SW 0 133 INCH LONG 80009...

Page 52: ...REV A DEC 1975 21...

Page 53: ......

Page 54: ...de Mfr Part Number STANDARD ACCESSORIES Fig Index Tektronix Serial Model No No Part No Eft Dscont Qty 1 2 3 4 5 Name Description 070 1834 01 1 MANUAL TECH INSTRUCTION 80009 070 1834 01 PS503A REV A DE...

Page 55: ...ince the change information sheets are carried in the manual until all changes are permanently entered some duplication may occur If no such change pages appear following this page your manual is corr...

Page 56: ...V High Amplitude output 100 V 067 0502 01 PG 506 Does not have chopped feature 0502 01 Comparator output can be alter nately chopped to a reference voltage SG 503 replaces 190 190A 190B SG 503 Amplitu...

Page 57: ...31869 DATE 6 14 77 REV CHANGE DESCRIPTION EFF SN B026130 ELECTRICAL PARTS LIST AND SCHEMATIC CHANGES CHANGE TO Al 670 3291 02 CKT BOARD ASSY MAIN C3 290 0522 00 CAP FXD ELCTLT 1 0UF 20 50V ADD C4 290...

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