Tektronix PS 501 Instruction Manual
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Tektronix PS 501 Instruction Manual

Tektronix PS 501 Instruction Manual

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  • Page 1 http://www.Datasheet4U.com...
  • Page 2 PLEASE CHECK FOR CHANGE INFORMATION ATTHEREAR OF THIS MANUAL SUPPLY DC POWER PS501 PS501-1 PS 501-2 Serial Number First Printing APR 1972 070-1301-02 Revised MAY1983 Product Group 75...
  • Page 3 Tektronix U.K . Limited . and price change privileges Printed in U.S .A . Specification Each instrument has a serial number on a panel insert, tag, or stamped on the chassis . The first number or letter designates the country of manufacture .

  • Page 4: Table Of Contents

    LISTOFILLUSTRATIONS ..........Specification .
  • Page 5 ......2 - 1 P S 5 0 1 ( - 1 , - 2 ) I n s t a l l a t i o n a n d R e m o v a l 2 - 1 .
  • Page 6 Grounding the Product This product is grounded throughthegrounding conduc- tor of the powercord . Toavoid electrical shock, plug the power cord into a properly wired receptacle before connecting to the product input or output terminals . A protective ground connection by way of the grounding conductor in the powercord is essential for safe opera- tion .
  • Page 7 Disconnect powerbefore removing protective panels, DoNotServiceAlone soldering, or replacing components . Power Source This product is intended to operate from a powersource not apply morethan 250volts rms betweenthe that will Use CareWhen ServicingWithPower On supply conductors or betweeneither supply conductor Dangerous voltages exist at several points in this product.
  • Page 8 501 (-1, -2) Power Supplies C NOV 1980...

  • Page 9: Specification

    The floating or acting as a bias or reference supply. transistor circuitry, Several PS 501's or other suitable supplies can be com- and environmental performancelimits Theelectrical bined for applications involving complementary c ircuitry, together with their related validation procedurescomprise...
  • Page 10 ELECTRICAL CHARACTERISTICS Supplemental Information Performance Requirements Characteristics 19.99 V in PS 501-1 . 0 V to at least 20 V . 400 mA, 0°Cto +30°C,Berating linearly, Rated Output Current to 300 mA at +50°C . Automaticcurrent limiting and over- Overload Protection...
  • Page 11 Supplemental Information Performance Requirements Characteristics 5 VSupply LM309K 5 V regulator integrated circuit . +4 .75 V to +5.25 groundreferenced . Output Voltage 1 A . Rated Output Current Non-adjustable andtypically 1 .5 Ato 3 A . Current Limit ±100 mVfor a 1 Aload change . Load Effect (Regulation) ±50 mVfor a 10%line voltage SourceEffect (Line...
  • Page 12 Table 1-2 ENVIRONMENTAL CHARACTERISTICS Information 0° Cto 30° C(with derati ng to 50° C) -40°Cto +75°C . To 15,000 feet . Maximum operating temperature decreasedby 1°C/100feet from 5000 to 15,000 feet . To 50,000 feet . Vibration With the instrument complete, vibration frequencysweptfrom Operating and non-operating 10 to 55 to 10 Hz at 1 minute per sweep .
  • Page 13 . Operation of the Power Moduleand The PS 501 (-1) (-2) is calibrated and ready for use other plug-ins in this system are described in their when received . It is designed to operate in anycompart- respective instruction manuals .

  • Page 14: Operating Instructions

    The supply set for the desired voltage will then become a the output current or voltage of the PS 501-2. See Figs . 2-2 constant voltage source, while the supply with the higher and 2-3, Controls and Connectors .
  • Page 15 Voltage ind~c .rtor lights applied to when hard limiuny occurs. whenpowe " . r PS 501 (OUTPUT pressedl- pushhutton Brightnrn : - varies wWh the V11117Ut VUItagf' . '5 V Ground-Raferenced Output Terminals . i may binding-post termi-...
  • Page 16 f~'leter Zero Adjustment (~URRLaT ~ ; . ` , aitgns tfte LIMiT C®taro! `~ rascally FY1u' " and Pndlcator ter r trt!e with the zero It3P' .sr Ii? "IWaE14P' Gcv>snuatls5y ,i8roat)ie core tr< ;i Ihat selects ttst : ou?put ..cc :rt .°ot limp from 0 t0 ai, , 1530...
  • Page 17 POWER SOURCE SUPPLY UNDER TEST POWER SUPPLY SUPPLY LOAD NULL DETECTOR LOAD 1301-05 1301-07 Fig . 2-6 . Differential measurement connections. Fig . 2-4. Series-connected supplies . POWER POWER SUPPLY SUPPLY (~6` LOAD 1301-06 CURRENT IN AMPERES Fig . 2-5 . Parallel-connected supplies . 1301-08 Fig .
  • Page 18 . However, there may be un- of the PS 501 (-1) (-2) andcausesignificant measurement positive desirable effects caused by groundingthe supply to the error .
  • Page 19 . Overvoltage ThePS 501 (-1) (-2) is not protected from overvoltage conditions . Component f ailure in the PS 501 (-1) (-2) Reverse CurrentLoading could result in a load damage i f external protection is not provided .

  • Page 21: Theory Of Operation

    This section contains a discussion of the operating reverse biases the other diode. Aportion of the current modesof the PS 501, PS 501-1, and PS 501-2 Power available from R51 is then diverted awayfrom the base of Supplies . Circuit operation for obtaining the constant 050 and to the amplifier with the lower output .
  • Page 22 SvL , °° With no load connectedto the output terminals of the (-2), all of the output current flows through PS 501 (-1) feedback divider R81/R83(approximately 1 mA/V). When z ac aload is connected to the output terminals, output current ~Q'~/ must increase to maintain a constant output voltage .
  • Page 23 Services Available does not correct the discrepancy, troubleshooting is indicated . This procedure maybe used to determine Tektronix Inc. , provides complete instrument repair acceptability of performance in an incoming inspection and adjustment at local field service centers and at the facility .

  • Page 24: Calibration Procedure

    CHECK t he output voltage whenthe supply is set to 2. Ensure that all test equipment is suitably adaptedto 5 V, 10 V, 15 V, and 20 V . (±0 .4 V for the PS 501-2, the applied line voltage .
  • Page 25 that there is 5 mVor less ripple (peak-to- from 117 V to 129 V. peak) with the 1 Aload . e. Removethe digital voltmeter and connect the g. Removethe test equipment . This completes the oscilloscope to the output of the 5 V supply . Do not performancecheck .

  • Page 26: Adjustment Procedure

    Press the range push button in (10-20 V) . (R18) Load Compensation 1. ADJUST a. Connect the50 f2 resistor across the PS 501 (-1) (-2) variable supply output terminals . d. ADJUST R 42B (+20 V) for 20.03 on the digital voltmeter .

  • Page 27: Section S Maintenance

    GENERAL Calibration To ensure accurate signal generation and measure- units in the system ment, the performanceof individual should be checked periodically . Refer to the Instruction Manual for eachunit for completecalibration andverifica- tion procedures. TROUBLESHOOTING AIDS I ntroduction is provided to augment information The following contained elsewhere in this and other TM500 series WARNING...
  • Page 28 Inspect the portion of the system in whichthetroubleis components signify Color stripes or dots on electrical suspected. Many troubles can be located by visual clues values, tolerances, etc. , according to EIA stan- electrical such as unsoldered connections, broken wires, damaged Bards.
  • Page 29 . Aconvenientmeansofclippinga test probe to the 14- and 16-pin in-line IC's is with an 1 . Instrument Type (PS 501, SG 502, DC501, etc . ) integrated circuit test clip . This device also doublesas an extraction tool .
  • Page 30 or other mountingsurface. Some boards may be held fast 1 . Minimize handling of static-sensitive components . mounting clips around the board edges. For by plastic these, pushthe mountingclipsawayfromthecircuitboard edgesto free the board. Also, removeany knobs, etc . , that 2.
  • Page 31 NOTE AND CASE STYLES ARE TYPICAL, BUT MAY LEAD CONFIGURATIONS MODIFICATIONS VARY DUE TO VENDOR C HANGES OR INSTRUMENT egluB CASE GROUND METAL-CASED TRANSISTORS PIN 1 PIN 3 (INPUT) (GROUND) PIN 1 PIN 2 (INPUT) (OUTPUT) REGULATOR IC'S DUAL FETS HEAT DISSIPATOR SEE MANUFACTURERS SPECIFICATIONS...
  • Page 32 BODY COLOR OPTIONAL WITH VENDOR DIPPED TANTALUM COMPOSITION METAL-FILM ELECTROLYTICS RESISTORS RESISTORS andO- 1ST, 2ND, AND 3RD SIGNI FICANT FIGS . AND/OR COLOR CODE MAY NOT -MULTIPLIER -TOLERANCE BE PRESENT O N SOME CAPACITORS AND VOLTAGE RATING -TEMPERATURE COEFFICIENT © -POLARITY RESISTORS CAPACITORS...
  • Page 33 . STATICDISCHARGE DAMAGE A pin replacement kit including necessary tools, Semiconductor Classes and replacement pins is available from instructions, Tektronix, Inc . with MOS inputs (Most Sensitive) Schottky signal diodes Schottky TTL...
  • Page 34 General 1/4 inch, 5/16 inch 6. Nutdrivers 3/8 inch, 7/16 inch General 11/16 inch 7. OpenEnd Wrench HexWik#887-10 Unsoldering 8. Solder Wick Tektronix Part Number FUNCTION switch Versilube 9. Lubricant 006-1353-00 I ubrication Tektronix Part Number switch pad FUNCTION No Noise 10 .
  • Page 35 REAR CONNECTOR PINASSIGNMENTS Power supply plug-in Pin 3 of U70 barrier slot Pin 3 of U40 Reference Common Reference Common Sense Output Unregulated Common Unregulated Common Emitter of Series Pass Transistor 25 VAC Winding 25 VAC Winding +33 .5 VFiltered +33 .5 V Filtered DC Collector lead of PNP Series-Pass Transistor Baselead of PNP Series-Pass Transistor...
  • Page 36 The positive regulated output is obtained from 22A, Remotevoltage programming i s possible through the PS501 and PS 501-1 rear interface contacts . 25B is the positive rear interface input voltage contact, and 24Aor . ) A one volt input 24B is the minusreturn .
  • Page 38 A2with its sub- If a part youhaveorderedhasbeen replaced with anew or assembliesand parts) . improved part, your local Tektronix, Inc . Field Officeor represen- Chassis-mounted parts have no assemblynumber prefix tative will contactyouconcerning anychange in part number .
  • Page 39 4433 RAVENSWOOD AVE . CHICAGO, IL 60640 71744 CHICAGO BEAVERTON, OR 97077 PO BOX 500 80009 TEKTRONIX, I NC. INC. , A SUB OF 87034 ILLUMINATED PRODUCTS SANTA ANA, CA 92711 OAK INDUSTRIES, INC . 2620 SUSAN ST, POBOX 11930...
  • Page 40 Name 8~ Description Cod e Mfr Part Number Part No . Dscont CktNo . 80009 670-2012-00 CKT BOARD ASSY :MAIN 670-2012-00 -___ - (PS501 ONLY) 80009 670-2116-00 8010100 8051569 CKT BOARD ASSY :MAIN 670-2116-00 (PS501-1 ONLY) -- _- 80009 .2116-01 8051570 8052649 CKT BOARD...
  • Page 41 Tektronix Serial/Model Code Mfr Part Number Name& Description Ckt No. Part No. Dscont 58474 A207799-G2 POST,BDG,ELEC :RED,S-WAY MINIATURE 129-0064-01 58474 207784-G5 POST,BDG,ELEC :WHITE,S-WAY,MINIATURE 129-0064-02 58474 A207799-G2 POST,BDG,ELEC :RED,S-WAYMINIATURE 129-0064-Ot 58474 A207799-G7 POST,BDG,ELEC :CHARCOAL,S-WAY MINIATURE 129-0064-00 33005 MODEL AMMETER :DC,O-1 MA,77OHM,+/-10%...
  • Page 42 Mfr Part Number Ckt No . Part No . Dscont Name &Description Code RES .,FXD,CMPSN :100K OHM,5%,0 .25W 01121 CB1045 Rfi8 315-0104-00 315-0511-00 RES .,FXD,CMPSN :510 OHM,5%,0 .25W 01121 CB5115 8010100 B051569 RES .,FXD,CMPSN :I .2K OHM,5%,0 .25W 01121 CB1225 315-0122-00 (PS501-1 ONLY) ----------...

  • Page 43: Replaceable Electrical Parts

    Capacitors =Values oneor greater are in picofarads (pF) . Values less than oneare in microfarads Other ANSIstandards that are used in the preparation (pF) . of diagrams by Tektronix, Inc. are: Resistors =Ohms (f2) . in this manual The information...
  • Page 44 R428 LOAD +20 VOLTS ZERO COMPENSATION (PS 501-1 Only) VOLTS © Static Sensitive Devices...
  • Page 45 CR10 T-r-~ " % 'I~ L_~Q~~~~~ C R20 'C20 Location after SN 8050000 NOTE : COMPONENTS SHOW A1 MAIN BOARD (PS 501/PS 5I 1301-19 A2 SECONDARY BOARD (PS 501-1 only) Fig . 8- 2. PS 501/PS 501-1 Con...
  • Page 46 /~1~ :: `il~~i . , , Yi~Yi COMPONENTS SHOWN WITH DASHED L INESARELOCATED ONBACK SIDE OFBOARD 1301-17 N BOARD IPS 501/PS 501-1) © Static Sensitive Devices See Maintenance Section Z . PS 501/PS 501- 1 Component L ocations. REV MAY1983...
  • Page 47 R42B° CR10 CR20 CR40 CR55 CR66 CR70 R66a+ CR71 CR74 DS70' R81~ VR10 VR11 VR19 VR26 A2ASSY (PS 501-1 only) POWER SUPPLY Circuit Schematic Circuit Schematic Board Board Number Number Location Location Location Location PS 501-1 only. *See Parts List for...
  • Page 48 Number Location Number Location Location Location R42A CR10 CR20 CR40 CR55 CR66 CR71 CR74 DS70 VR10 VR11 VR19 VR26...
  • Page 49 ~__________1- NOTE : COMPONENTS A1MAIN BOARD (PS 501-2 ~ Fig . 8-3. PS 501-2Component L REVB NOV 1980...
  • Page 50 PS 501 (-1,-21 ". ;,1 .. ~~I ~ I : : : : ., . ~,~ ., . ., . ., . ". 1 vi " 1 1 "; ~ "~ i~ vi iy y " r~r i~ i~ i~ " r "...
  • Page 51 VOLTS ' 24B R42A ~ VRIO Cps 501-I ONLY~ 2 1 / B ^I ~.2V ~I~1 158 IH (PS 501-I ONLY) +a J O,r,~y I IOB ~C 3~ -~ 4 .7uF CR40 Rib ~ u v SOk ~ -5" Iv...
  • Page 52 'S 501-1 ONL`/, +3o" Sv CR71 -Sdv ~go~52 CR44 ~ P5501-1 ~~~) Isak cRTO /~~~~ [ - \ , J cNLY (CURRENT LIMIT) ~j/ R!.® look '~`R25 y , .REN7 LIMIT +3o .5v RC.S ~P5501-1 ONLY 19 6 O-20V +3o .5v ~"~ Z1A +ouTPVT 40pmA _S,IV...
  • Page 53 This mechanicalparts list relationships . Following is an example of theindentation system used in the description column . Changes to Tektronix instrumentsaresometimes m ade to ~ 2 3 4 5 Name & Description improved components a s they become available,...
  • Page 54 2100 S. O BAY ST . MILWAUKEE, WI 53207 WASHER . CO . 79807 WROUGHT P O BOX 500 BEAVERTON, OR97077 TEKTRONIX, INC. 80009 812 SNEDIKER AVE . BROOKLYN, NY11207 SMITH, HERMAN H. , INC. 83330 2530 CRESCENT DR .
  • Page 55 Replaceable Mechanical P arts-PS Serial/Model No. Tektronix Dscont 1 2 3 4 5 Name 8 Description Code Mfr Part Number Part No. 80009 366-1422-01 B052139 KNOB :LATCH 366-1422-01 B010100 --__ _-_- (PS501-1, PS501-2 ONLY) 80009 366-1690 .00 KNOB :SIL GY,0.53 X 0.23 X 1 .059...
  • Page 56 Serial/Model Part No. Dscont 1 2 3 4 5 Name & Description C ode Mfr Part Number LCH,PLUG-IN RET : 80009 214-1513-01 214-1513-01 8010100 8052139 -_-- _~ (PS501-1, PS501-2ONLY) 80009 105-0719-00 105-0719-00 8052140 LATCH,RETAINING :PLUG-IN ---__ -_-- (PS501-1, PS501-2ONLY) PARTS)"""""' """""""(ATTACHING :2-32 X 0 .250,100 DEG,FLH 45722...
  • Page 57 Serial/Model No . No . Part No . Dscont Qty 1 2 3 4 5 MfrPart Number Name 8Description Code SHLD,ELECTRICAL :REAR SUBPANEL 80009 337-1638-00 337-1638-00 ----- ----- (PS501 ONLY) --------- CKT BOARD ASSY :MAIN(SEE A 1 REPL) ----- ----- (PS501 ONLY) 136-0252-04 8010100...
  • Page 58 Serial/Model No . Mfr Part Number 1 2 3 4 5 Name & Description Code Dscont Part No . A2 REPL) _____ ____ CKT BOARD ASSY :SECONDARY(SEE _____ _____ (PS501-1 ONLY) .SWITCH,PUSH :(SEE S42REPL) _____ _____ 80009 361-0383-00 .SPACER,PB S W :CHARCOAL,0 .33 INCH LONG 361-0383-00 """""'(ATTACHING...

  • Page 59: Replaceable Mechanical Parts

    Tektronix Serial/Model Part No. Dscont 1 2 3 4 5 Name& Description Code Mfr Part Number LAMPHOLDER :WHITEPLASTIC 80009 352-0157-00 -107 352-0157-00 AMMETER :DC,0 .1 MA,77OHM,+/-10% 33005 MODEL -108 149-0036-00 (PS501-2ONLY) _ -__ """""""(ATTACHING PARTS)"""""` SCREW,MACHINE :4-40 X 0 .25,100 DEG,FLH STL...
  • Page 63 Serial/Model Name 8 Description Code Mfr Part Number Dscont Qty 1 2 3 4 5 No . Part No . 070-1301-02 MANUAL,TECH :INSTRUCTION 80009 07U-1301-02 PS 501(-1,- 2)
  • Page 65 R66 (1KS2) from the collector of Q60 to the cathodeof CR55. At location B6, part of S10 is shown as being shorted for PS 501-2 ONLY . This now also applies to PS 501-1 for the serial numbers noted above .

This manual is also suitable for:

Ps 501-1Ps 501-2

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