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Manual Agilent Technologies 66332A

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  • Agilent Technologies 66332A - page 1

    Service Manual A gilent Model 66332A Dy namic Measurement DC Source and A gilent Model 6632B, 6633B, 6634B Sy stem DC Pow er Supply For instruments with Serial Numbers: Agilent 66332A: US37470791 and up Agilent 6632B: US37471966 and up Agilent 6633B: US37470746 and up Agilent 6634B: US37470655 and up For i nstruments with higher serial numbers, a c ...

  • Agilent Technologies 66332A - page 2

    2 Warranty Information CER TIFICA T ION Agilent Technologies certifies that this product met its published specifications at time of shipment from the factory. Agilent Technologies further certifies that its calibration measurements are traceable to the United States National Bureau of Standards, to the extent allowed by the Bureau's calibrati ...

  • Agilent Technologies 66332A - page 3

    3 Safety Summary The f ollowin g g eneral sa f et y p recautions must be obser ved durin g all p hases o f o p eration o f this instrument. Failure to com p l y with these p recautions or with s p eci f ic warnin g s else where in this manual v iolates sa f et y standards o f desi g n, manu f acture, and intended use o f the instrument. A g ilent T ...

  • Agilent Technologies 66332A - page 4

    4 Safety Symbol Definitions Symbol Description Direct current Alternatin g current Both direct and alternating current Three-phase altern ating current Earth (grou nd) terminal Protective earth (ground) term inal Frame or ch assis termin al Terminal is at earth potential (Used for meas urement and con trol circuits design ed to be operated with one ...

  • Agilent Technologies 66332A - page 5

    5 Notice The information contain ed in this docum ent is subject to change w ithout notice. Agilent T echnologies makes n o warran ty of any kind with reg ard to this material, in cluding but not limited to, the im plied warranties of merch antability, and fitness f o r a particular purpose. Agilent Technologies shall not be liable for errors conta ...

  • Agilent Technologies 66332A - page 6

    6 Table of Contents Warranty Inform ation 2 Safety Sum mary 3 Notice 4 Printing History 5 Instrument Identifi catio n 5 Table of Cont ents 6 INTRODUCTION 9 Organization 9 Safety Considerations 9 Related Documents 9 Revis ions 10 Manual Revisio ns 10 Firm ware Re visions 10 Electrostatic Discharge 10 VERIFICA TION A ND PERFORMA NCE TESTS 11 Introdu ...

  • Agilent Technologies 66332A - page 7

    7 Power-on Self -test Failures 37 CV/CC Status Annunci ator s Tr oub leshoo ting 38 Bias and Ref erence Supplies 38 J307 Voltage Meas urement s 39 Manual Fa n Spee d Contr ol 40 Disab ling Pr ote ctio n Featur es 40 Post-repair Calibration 41 Inhibit Calibration Switch 41 Calibration Password 41 Initialization 42 ROM Upgra de 42 Identify ing the Fi ...

  • Agilent Technologies 66332A - page 8

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  • Agilent Technologies 66332A - page 9

    9 1 Introduction Organization This manual con tains information f or tro ubleshooting and repairing to the com ponent level the Ag ilent Mode l 66332A Dy nam ic Measurem ent DC Source an d the Agi lent Model 6632B, 6633B, 6634B Sy stem DC Power Supplies. Hereafter all models w ill be referred to as the dc po wer su pp ly. This manual is organized a ...

  • Agilent Technologies 66332A - page 10

    1 - Intr oduction 10 Rev isions Manual Revisions This manual w as written f o r dc power supplies that have the sam e manuf acturing dates (the first four digits) as those listed on the title page and w hose unique identification n umber (the last four digits) are equal to or high er than those listed in the title page. NOTE: If the first f our d i ...

  • Agilent Technologies 66332A - page 11

    11 2 Verification and Performance Tests Introduction This document contains test p rocedures to verify that th e dc p ower supply is op erating norm ally and is w ithin published s pecifications. There are three ty pes of tests as f o llow s: Built-in Self Test s These tests, run automatically when the power su pply is turned on , check most of the ...

  • Agilent Technologies 66332A - page 12

    2 - Verif ication and Perf ormance Test s 12 Resistor (substitute for electronic load if load is too noisy for CC P ARD test) 1 ohm , 50 W 3 ohm , 100 W (Agi lent 66332A/ 6632B) 24 ohm , 100 W (Agi lent 6633B) 99 ohm , 100 W (Agi lent 6634B) 1k ohm , 5%, 3W (all m odels) Ohm ite L50J1R 0 Ohmite RL S5R0 (adjustable) Ohm ite RLS 25R (adjustable) Ohm ...

  • Agilent Technologies 66332A - page 13

    Verification and Per form ance Tests - 2 13 Electronic Load Many of the test procedures requ ire the use of a v ariable load capable of dissipating th e required power. If a variable resistor is used, switches should b e used to either; co nnect, d isconnec t, or short the lo ad resisto r. Fo r most tests, an electronic load can be u sed. T he elec ...

  • Agilent Technologies 66332A - page 14

    2 - Verif ication and Perf ormance Test s 14 Table 2-2. Progra mming Ratings Model Voltage Rating Full Scale Rating Current Rating Full Scale Rating Agilent 66332A/6632B Ag ilent 6633B Ag ilent 6634B 20 V 50 V 100 V 20.020 V 50.045 V 100.1 V 5 A 2 A 1 A 5.0045 A 2.002 A 1.001 A Constant Voltage (CV) Tests CV Setup If m ore than one meter or if a m ...

  • Agilent Technologies 66332A - page 15

    Verification and Per form ance Tests - 2 15 e. Open the load and ag ain record the DVM voltage reading . T he differen ce between the DVM readin gs in steps (d) and (e) is the load ef fect voltage, and sh ould not exceed the valu e listed in the perform ance test record chart for the appropri ate model u nder CV LOA D EFFECT. CV Source Effect This ...

  • Agilent Technologies 66332A - page 16

    2 - Verif ication and Perf ormance Test s 16 Transient Recove ry Time This test measures the tim e for the output voltage to recover to w ithin the specified value follow ing a 50% change in the load curren t. tttt t v Loading Transient Unloading Transient v t Figure 2-2. T ransient Wavef orm a. Turn off the supply and connect the output as in Figu ...

  • Agilent Technologies 66332A - page 17

    Verification and Per form ance Tests - 2 17 e. Divide the v oltage drop (DVM reading) across the cu rrent monitorin g resistor by its resistance to conv ert to amps and record this value (Iou t). Also, record the curren t reading that appears on th e front panel display . T he readings should be w ithin the lim its sp ecified in the perform ance te ...

  • Agilent Technologies 66332A - page 18

    2 - Verif ication and Perf ormance Test s 18 c. Set up voltmeter to take m easurements in the statistical mode as follows: Press Shift key, f0, Shif t key, N Press ^ (up arrow) until MA T H function is selected, then press >. Press ^ (up arrow until STAT function is selected then pr ess (ENTER). d. Set up voltm eter to read the average of the m ...

  • Agilent Technologies 66332A - page 19

    Verification and Per form ance Tests - 2 19 CC Noise (PA RD) Periodic and random deviations (PAR D) in the output com bine to produce a residual ac cu rrent, as w ell, as an ac voltage su perimposed on th e dc output. Constan t current (CC) PAR D is specified as the rm s output cu rrent in a frequen cy rang e 20 Hz to 20 Mhz w ith the su pply in C ...

  • Agilent Technologies 66332A - page 20

    2 - Verif ication and Perf ormance Test s 20 Performance Test Record Forms Model Agilen t 66332A OR Agilen t6632B Report No _______________ Date __________________ Test Description Minimum Specs. Results* Ma ximum Specs. Measurement Uncertainty Constant Vo ltage Test s Voltage Program min g and Readback Low Voltage (0V) Vout Front Panel Display Rea ...

  • Agilent Technologies 66332A - page 21

    Verification and Per form ance Tests - 2 21 Model Agilen t 6633B Rep ort No _______________ Date __________________ Test Description Minimum Specs. Results* Ma ximum Specs. Measurement Uncertainty Constant Vo ltage Test s Voltage Program min g and Readback Low Voltage (0V) Vout Front Panel Display Readback High Vo ltage (Full Sc ale) Vout Front Pan ...

  • Agilent Technologies 66332A - page 22

    2 - Verif ication and Perf ormance Test s 22 Model Agilen t 6634B Rep ort No _______________ Date __________________ Test Description Minimum Specs. Results* Ma ximum Specs. Measurement Uncertainty Constant Vo ltage Test s Voltage Program min g and Readback Low Voltage (0V) Vout Front Panel Display Readback High Vo ltage (Full Sc ale) Vout Front Pa ...

  • Agilent Technologies 66332A - page 23

    23 3 Troubleshooting Introduction WA RNING: SHOCK HA ZA RD. Most of the troubles hooting procedures g iven in this chapter are performed w ith pow er applied and protective cov ers remov ed. Such m aintenan ce should be perform ed only by s ervice trained personnel w ho are aw are of the hazards (f or example, f ire and electrical shock). CA UT ION ...

  • Agilent Technologies 66332A - page 24

    3 - Tr oubleshooting 24 Test Equipment Required Table 3-1 list s the test equ ipment required to troublesh oot the pow er supply . Recomm ended models are listed. Table 3-1. Test Equipment Required for T roubleshooting Type Purpose Recomm ended M odel GPIB Controller To commu nicate with the supply v ia the GPIB interface HP Series 300 Digit al Vol ...

  • Agilent Technologies 66332A - page 25

    Troubleshoot ing - 3 25 Turn on unit and observe the dis p la y . Unit should dis p la y all of the se g ments and annunciators, the address and then after self test dis p la y either an erro r messa g e or g o to the meterin g mode. Protect A nnunciato r On? Dis p la y comes on? A 3J2-5 held low? Yes Re p lace A2 Interface board No No +5V @ A3J2-8 ...

  • Agilent Technologies 66332A - page 26

    3 - Tr oubleshooting 26 Continued from sheet 1 Pro g ram Volta g e and Current full scale, enable out p ut with no load. Measure Volta g e at out p ut terminals. Volta g e close to p ro g rammed value? Calibrate Volta g e Yes Out p ut Volta g e near zero? No Go to "Troubleshootin g No Out p ut Volta g e" ( sheet 7 ) Yes If out p ut is OK ...

  • Agilent Technologies 66332A - page 27

    Troubleshoot ing - 3 27 Figure 3-1 She et 3. M ain Flowchart (continued) ...

  • Agilent Technologies 66332A - page 28

    3 - Tr oubleshooting 28 Connect a DC cou p led sco p e set to 1mS/20V/ div across the out p ut and turn on the su pp l y while observin g the sco p e for a momentar y p ulse g reater than the su pp l y ratin g Does the su pp l y overshoot? Yes Disable the OV circuit as described in p ara g ra g h "Disablin g Protection Features" No Out p ...

  • Agilent Technologies 66332A - page 29

    Troubleshoot ing - 3 29 Continued from sheet 4 A 1U306B-2, OV_Detect*, Hi gh? No U306B-7 < pin 8? Yes Check U306B, A2 Check R349, R351, R356 Yes No A 1R438, OV_SCR*, +0.6V? Yes Check R441, Q318B, A 2, Inte rface Board No Check A1CR342, Q318A, B & D and associated components Yes Note: OV_SCR* i s normally a pulse t hat goes low for 5us to tri ...

  • Agilent Technologies 66332A - page 30

    3 - Tr oubleshooting 30 Pro g ram out p ut on, volta g e and current full scale then check out p ut volta g e Troubleshoot Fuse divider and am p lifie r circuit ( R393/394, U305 ) Disable the p rotection feature b y simultaneousl y p ressin g the 0 and 9 ke y s, p ress the ^ ke y until the dis p la y reads "No Protect Off", p ress the U p ...

  • Agilent Technologies 66332A - page 31

    Troubleshoot ing - 3 31 Program full scal e voltage and current and enable output. Measure output voltage wit h an external volt meter. Display zero V but output OK? Check W7 (Vmon) and A 2, Inte rface board Yes CV or CC A nnunciator on? No CC? Yes Displays current equal to prog value? Yes Check for short across output such as output cap C382, CR34 ...

  • Agilent Technologies 66332A - page 32

    3 - Tr oubleshooting 32 Continued from sheet 7 Q302 base -5V ? Check C330, R333, R346, and Q302 No Q307 collector to emitte r 4V? Check Q302, Q307, R324 and R326 No Q303 base >1.2V (meas. from +Out) ? Check +Rail and Out p ut Sta g e Yes Yes >1V across R323 ? Check Q301, Q305 circuits No No Yes Check C331, C333, C339 and Q306 circuits Yes Fig ...

  • Agilent Technologies 66332A - page 33

    Troubleshoot ing - 3 33 Continued from sheet 7 CV _ Pro g @ R401 -4.7V ? Check W7, A2 Interface Board No VMon, U315B-7 ~0V ? Yes Check Volta g e Monito r A m p lifier, U315B, circuit No Check Volta g e Control, Circuit U315 A Yes Figure 3-1 S heet 9 No Output Voltage (continued) ...

  • Agilent Technologies 66332A - page 34

    3 - Tr oubleshooting 34 Continued from sheet 2 CC _ Pro g , R360, -4.8V ? Check A2 Interface Board No Imon _ H, U309A-6 ~+3.5V ? Dro p across R473 ~0.25V ? No Check Hi g h Ran g e Current Monito r A m p lifie r Yes Check Positive Curr ent Control Circuit Yes Yes Check R473 No Figure 3-1 Sheet 10. No Current L imit ...

  • Agilent Technologies 66332A - page 35

    Troubleshoot ing - 3 35 Pro g ram the out p ut volta g e and current to the full scale value and the OV to 1/2. OV _p ro g ~+2V @ R350 ? U306B-8 ~+2V ? A 2 Interface Board o r cable W7 defective Check R350, C335 and U306B Yes No No U306B-7 ~+4V ? Yes Check R349, R351, R356, C336 and U306 No U306B-2, OV _ DETECT*, Low? Yes Check U306B No OV_SCR* pul ...

  • Agilent Technologies 66332A - page 36

    3 - Tr oubleshooting 36 Disable the OV ca p abilit y b y shortin g R351. After the p rotection is disabled, p ro g ram the out p ut volta g e to zero, current to full scale and Out p ut ON. If the unit is in "Protect" mode, Press Protect Clear. The out p ut should now g o hi g h and not tri p the OV. Is the CV annunciator on ? Vmon, U315B ...

  • Agilent Technologies 66332A - page 37

    Troubleshoot ing - 3 37 Specific Troubleshooting Procedures Power-on Self-test Failures The power-on self- test seq uence tests m ost o f the digital and DA C circuits. If the supply fails self -test, the display "ERR" annuncia tor will come on. You ca n then query the unit to find o ut what the error( s) are . When an er ror is detected, ...

  • Agilent Technologies 66332A - page 38

    3 - Tr oubleshooting 38 CV/CC Status A nnunciators Troubleshooting The CV/CC annunc iato rs ar e pa rtic ular ly helpful when tro uble shoo ting a uni t with no outp ut. I f the unit ha s no outp ut volt age o r curr ent a nd one of the a nnunciat ors i s on the n the pr ob lem is in the c ontr ol ci rcuit assoc iate d with that a nnunciato r. An e ...

  • Agilent Technologies 66332A - page 39

    Troubleshoot ing - 3 39 J307 Voltage Measurements J307 connects th e A1 Main Board As sembly to the A2 Interface A ssembly . Table 3-4 provides a quick m ethod of determinin g if the voltages between these assemblies are with in the normal rang e. If any of these v o ltages is outside the norm al range, refer to the f lowcharts to f urther troubles ...

  • Agilent Technologies 66332A - page 40

    3 - Tr oubleshooting 40 Manual Fan Speed Control Under som e circumstances such as testing acoustical devices w here the fan noise w ould interfere w ith the test, it w o uld be advan tageous to reduce the f an speed. If the test requ ires a very lig ht load, the ambien t temperature is low and the duration of the test is sh o rt, the fan speed m a ...

  • Agilent Technologies 66332A - page 41

    Troubleshoot ing - 3 41 Post-repair Calibration Calibration is r equired annually and whenever certain components are replaced. If components in any of the circuits listed below are replaced, the supply must be re- calibrated as described in Appendix B of the Us er's Guide. a. A1 Control Board: Voltage or Current Monitor Am plifier circuits, H ...

  • Agilent Technologies 66332A - page 42

    3 - Tr oubleshooting 42 Initialization The dc pow er supply' s GPIB address and m odel num ber as w ell as other cons tants w hich are requ ired to program and calibrate the su pply are stored in a EEPROM on the A2 Interface board. The In terface board also contains references and other com ponents that w ill affect the alignm ent of the suppl ...

  • Agilent Technologies 66332A - page 43

    Troubleshoot ing - 3 43 Disassembly Procedures The follow ing parag raphs provide in structions on how to disassem ble various component s of the dc pow er supply . Once disa ssembled, th e componen ts can be reassem bled by perf orming the disassem bly in structions in reverse order. Figu re 3-2 show s the location of the m ajor components of the ...

  • Agilent Technologies 66332A - page 44

    3 - Tr oubleshooting 44 Cove r, Removal and Replacement a. Using a 2TP Pozi screwdriv er, unscrew the two screw s that hold th e carrying straps to the power su pply, and then rem ove the tw o screw s from the opposite side of the case. b. To remove the cov er, first spread the bottom rear of the cover slig htly and pu sh from th e front panel c. S ...

  • Agilent Technologies 66332A - page 45

    Troubleshoot ing - 3 45 S1 Line Switch, Removal and Replacement a. First rem o ve the f ront panel assem b ly as described under “Front Panel A ssembly , Removal an d Replacement.” b. Release th e swit ch from t he front pane l by pressin g the lockin g tabs inw ard agains t the body of the sw itch and pushing the sw itch out of its opening. NO ...

  • Agilent Technologies 66332A - page 46

    3 - Tr oubleshooting 46 Line Voltage Wiring Figure 3-3 illustrates the prim ary w iring configuration of the pow er transformer for various ac lin e voltages. Use long nose pliers to disconnect the w ires going to the transformer term inals. NOTE: Install the correct f use wh en changing the ac line voltage from a previous setting : for 110/120 Vac ...

  • Agilent Technologies 66332A - page 47

    47 4 Principles of Operatio n Introduction This section describes the different functional circu its used in the dc power supply m ode ls covered in this m anual. First, the I/O extern al signals that con nect to the Agilen t power supply are described. Next, the overall block diagram s for the dc pow er supply are described in det ail. The simplif ...

  • Agilent Technologies 66332A - page 48

    4 - Principles of Operat ion 48 A 3 Front Panel Circuits As show n in Figure 4-1, the supply 's front panel assembly contains a circuit board, a keypad, a liquid crystal display (LCD), and a rotary control (RP G) for the output v oltage and current. With the exception of th e RPG (A3G1), the A3 Front Panel board is an assembly -level replaceab ...

  • Agilent Technologies 66332A - page 49

    Principles of Operation - 4 49 Figure 4-1. A2/A 3 Block Diagram ...

  • Agilent Technologies 66332A - page 50

    4 - Principles of Operat ion 50 The EEPROM (electrically erasable prog ramm able read-only m emory ) chip on the A2 in terface board stores a variety of d ata and configu r ation inform ation. T his inform ation includes calibration constants, GPIB addr ess, pre sent p rogr amming language, and mod el-d epe ndent data , such a s the minimum and max ...

  • Agilent Technologies 66332A - page 51

    Principles of Operation - 4 51 Figure 4-2. A1 Block Diagram ...

  • Agilent Technologies 66332A - page 52

    4 - Principles of Operat ion 52 Two cur rent shunt resisto rs monito r the o utput curre nt. RmHi (R 473) monitors the high current range ; RmL o (R403) monitor s the lo w current r ange. Shunt cla mps, co nnecte d in p aral lel ac ro ss RmLo, turn o n at ap pr oximatel y 25 mA to limit th e voltage dr op at high current s. T he Range_Select signal ...

  • Agilent Technologies 66332A - page 53

    Principles of Operation - 4 53 The output is program med off . An overv o ltage condition is detected (OV_Detect* signal is receiv ed ). The line voltage falls below 90 volts (approximately ). Curren t readback is provided by three separate circu its. The previous ly discu ssed high range current signal (Im on_H) returns th e high range cu rrent me ...

  • Agilent Technologies 66332A - page 54

    ...

  • Agilent Technologies 66332A - page 55

    55 5 Replaceable Parts L ist Introduction This section lists the replaceable parts for Agilent Models 66332A, 6632B, 6633B, and 6634B power supplies. Refer to Figures 5- 1 for the location of mechanical parts with the reference designators MP. Refer to the board location diag rams in Chapter 6 for the location of electrical parts. Table 5- 1. Chass ...

  • Agilent Technologies 66332A - page 56

    5 - Replaceable Parts 56 Table 5- 2. Chassis, M echanical Designator M odel Part Num ber Qty Description MP1 All 06612-00002 1 Cha ssis MP2 All 5063-3426 1 Front Pan el Ass y, Std u nit MP2 All 5063-3443 1 Front Pan el Ass y, Option 020 MP3 All 0370-3238 1 Knob, 6m m MP4 All 06612-40001 1 Keypad MP5 All 1510-0091 2 Binding Post, Sin gle, Red MP6 66 ...

  • Agilent Technologies 66332A - page 57

    Replaceable Parts - 5 57 Figure 5-1. M echan ical Parts ldentif ication ...

  • Agilent Technologies 66332A - page 58

    5 - Replaceable Parts 58 Table 5- 3. A 1 Cont rol Board PC Board A ssembly Designator Model Part Num ber Qty Des cription A1 66332A/6632B 5063-3431 1 Cont rol PCA, Test ed A1 6633B 06633-61023 1 Con trol PCA, Tes ted A1 6634B 06634-61023 1 Con trol PCA, Tes ted C300 66332A/6632B 0160-5422 1 C ap 0.047 uF 20% C301 All 0160-5422 1 Cap 0.047 uF 20% C3 ...

  • Agilent Technologies 66332A - page 59

    Replaceable Parts - 5 59 Designator Model Part Num ber Qty Des cription C349 66332A/6632B 0160-4791 1 Cap 10 pF 5% 100V C349 6633B/6634B 0160-4807 1 Cap 0.033 uF C350 All 0160-5422 1 Cap 0.047 uF 20% C351 All 0160-4791 1 Cap 10 pF 5% 100V C352 66332A/6632B 0160-4791 1 Cap 10 pF 5% 100V C352 6633B/6634B 0160-4807 1 Cap 0.033 uF C353, 354 A ll 0160-5 ...

  • Agilent Technologies 66332A - page 60

    5 - Replaceable Parts 60 Designator Model Part Num ber Qty Des cription C403 66332A/6632B 0160-4791 1 Cap 10 pF 5% 100V C405 All 0160-3454 1 Cap 220 pF 1K V C411 6633B/6634B 0160-7277 1 Cap 2.2 uF C420 6633B/6634B 0160-6800 1 Cap 0.022 uF 20% C421 6633B/6634B 0160-6800 1 Cap 0.022 uF 20% C422 6633B 0160-6180 1 Cap 1000 pF 20% C422 6634B 0160-7336 1 ...

  • Agilent Technologies 66332A - page 61

    Replaceable Parts - 5 61 Designator Model Part Num ber Qty Des cription D310 6633B/6634B 1901-1130 1 Diode D311 66332A/6632B 5060-3378 2 Rectifie r Assem bly 1205-0282 1 ref D311 Heat Sink 1901-1383 1 ref D311 Pow er Diode D311 6633B/6634B 1901-1130 1 Diode D312 All 1901-1098 1 Diode D313, 314 A ll 1901-0731 2 Diode D315 All 1901-0050 1 Diode D316 ...

  • Agilent Technologies 66332A - page 62

    5 - Replaceable Parts 62 Designator Model Part Num ber Qty Des cription Q300 All 5060-3245 1 Darling ton Fan D river Ass embly All 1854-0828 1 ref Q300 Trans istor,NPN SI All 1205-0282 1 ref Q300 Heat S ink Q301 66332A/6632B/ 6633B 1854-0474 1 Transis tor, NPN Q301 6634B 1854-0575 1 Transis tor, NPN Q302 66332A/6632B/ 6633B 1854-0474 1 Transis tor, ...

  • Agilent Technologies 66332A - page 63

    Replaceable Parts - 5 63 Designator Model Part Num ber Qty Des cription Q315 66332A/6632B 1854-1174 1 T ransis tor, NPN Q315 6633B/6634B 1854- 1362 1 T ransi stor, NPN Q316 All 1855-1016 1 Transist or, FET Q317 66332A/6632B 1853-0656 1 Transis tor, PNP Q317 6633B/6634B 1853-0772 1 Transist or, PNP Q318 All 1858-0074 1 Transist or Array Q319 66332A/ ...

  • Agilent Technologies 66332A - page 64

    5 - Replaceable Parts 64 Designator Model Part Num ber Qty Des cription R326 66332A/6632B 0757-0200 1 Res 5.62K 1% R326 6633B/6634B 0698-3159 1 Res 26.1K 1% R327 All 0757-0280 1 Res 1K 1% 0.125W R328 66332A/6632B 0683-0475 1 Res 20K 1% 0.125W R328 6633B/6634B 0757-0346 1 Res 10 1% R329 66332A/6632B 0757-0449 1 Res 4.7 Oh m 5% 0.25W R329 6633B 0757- ...

  • Agilent Technologies 66332A - page 65

    Replaceable Parts - 5 65 Designator Model Part Num ber Qty Des cription R351 66332A/6632B 0698-6320 1 Res 5K 0.1% R351 6633B 0698-5087 1 Res 6.2K 1% R351 6634B 0698-6320 1 Res 5K 1% R352 66332A/6632B 8159-0005 1 Jum per R353 All 0698-8959 1 Res 619K 1% R354 66332A/6632B 0757-0447 1 Res 16.2K 1% R354 6633B 0757-0458 1 Res 51.1K 1% R354 6634B 0698-45 ...

  • Agilent Technologies 66332A - page 66

    5 - Replaceable Parts 66 Designator Model Part Num ber Qty Des cription R386 66332A/6632B 0811-1672 1 Res 3.3 Oh m 5% 2W R386 6633B/6634B 0811-2553 1 Res 7.5 O hm 5% 2W PW R387 66332A/6632B 0811-1672 1 Res 3.3 Oh m 5% 2W R387 6633B/6634B 0811-2553 1 Res 7.5 O hm 5% 2W PW R388 All 0757-0442 1 Res 10K 1% 0.125W R389 66332A/6632B 0811-1672 1 Res 3.3 O ...

  • Agilent Technologies 66332A - page 67

    Replaceable Parts - 5 67 Designator Model Part Num ber Qty Des cription R421 66332A/6632B 0811-1672 1 Res 3.3 Oh m 5% 2W R421 6633B 0811-2553 1 Res 7.5 Oh m 5% 2W PW R422 66332A/6632B 0698-6351 1 Res 133K 0.1% R423 66332A/6632B/6633B 0699-0267 1 Res 10K 0.05% R423 6634B 0699-0278 1 Res 15K 0.05% 0.1W R425 66332A/6632B 0698-4539 1 Res 402K 1% R427 6 ...

  • Agilent Technologies 66332A - page 68

    5 - Replaceable Parts 68 Designator Model Part Num ber Qty Des cription R455 66332A/6632B 0698-6631 1 Res 2.5K 0.1% R455 6633B 0698-8863 1 Res 5.2K 0.1% R455 6634B 0699-0489 1 Res 16.1K 0.1% R456 All 8159-0005 1 Jumper R457 66332A/6632B 8159-0005 1 Jum per R458 All 8159-0005 1 Jumper R459 66332A/6632B 8159-0005 1 Jum per R460 All 0698-6620 1 Res 15 ...

  • Agilent Technologies 66332A - page 69

    Replaceable Parts - 5 69 Designator Model Part Num ber Qty Des cription R497 66332A/6632B 0757-0289 1 Res 13.3K 1% R497 6633B/6634B 0757-0433 1 Res 3.32K 0.125W R498 - 500 All 0757-0407 2 Res 200 Oh m 1% 0.125W R505 6633B Not Used 1 R510 - 517 66332A/6632B 0811-1672 8 Res 3.3 Ohm 5% 2W R520 6633B/6634B Not Used 1 R521 All Not Used 1 Replaced by wir ...

  • Agilent Technologies 66332A - page 70

    5 - Replaceable Parts 70 A2 Interface PCA, T ested for 66332A 5063-3439 No u ser replaceable parts A2 Interface PCA, T ested for 6632B/6633B/6634B 5063-3429 No user replaceable p arts A3 Front Panel PCA T ested for all m odels 5063-3432 No user replaceab le parts Table 5- 4. Binding Po st Opt ion #020 Designator M odel Part Num ber Qty Description ...

  • Agilent Technologies 66332A - page 71

    71 6 Diagrams Introduction This chapt er contains draw ings and diagram s for troublesh ooting and m aintain ing th e Agilent Model 66332A Dy namic Meas urement DC Source and th e Agilen t Model 66332A/6632B/6633B/6634B S ystem DC Pow er Supplies. Unless otherw ise sp ecified in the draw ings, a drawing o r diagram applies to all models and input v ...

  • Agilent Technologies 66332A - page 72

    6 - Diagr ams 72 Table 6-1. Model-dependent Components (continue d) Des ignato r 66332A/ 6632B 6633B 6634B Des ignato r 66332A/ 6632B 6633B 6634B R319 316 Ohm 511 O hm 750 Ohm R413 10K R320 1.5K 2.61k 1k R415 22K 22.22K 22.22K R321 80.6K 215k 340k R418 51.1K 80K 160K R323 1K 5.11K 14.7K R421 3.3 Ohm 7.5 Ohm R324 1K 5.11K 5.11K R422 133K R325 1K 14. ...

  • Agilent Technologies 66332A - page 73

    Diagram s - 6 73 Table 6-2. A 1 Board Component Locations Ref. X Y Ref. X Y Re f. X Y Ref. X Y Ref. X Y C300 8.125 3.25 C371 5.05 7.65 D323 1.025 4.9 R301 5.45 1.0 R366 1.3 3.925 C301 2.075 0.525 C372 1.875 7.9 D324 0.1 4.375 R302 6.275 0.1 R367 0.675 4.225 C302 7.5 1.925 C373 1.875 7.8 D325 0.15 7.125 R303 7.925 2.8 R368 1.125 5.0 C304 6.025 0.45 ...

  • Agilent Technologies 66332A - page 74

    6 - Diagr ams 74 Table 6-2 continued Ref. X Y Ref. X Y R434 2.5 9.825 R500 2.175 4.325 R435 2.4 9.825 R505 0.525 6.8 R436 7.05 7.75 R510 6.2 5.1 R437 6.8 7.75 R511 6.2 7.2 R438 4.675 6.875 R512 6.55 5.45 R439 1.925 8.65 R513 6.55 7.75 R440 5.7 7.2 R514 6.2 6.9 R441 5.05 7.125 R515 6.2 9.9 R442 0.35 9.65 R516 6.55 7.325 R443 0.2 9.55 R517 6.55 9.75 ...

  • Agilent Technologies 66332A - page 75

    Figure 6-1. A1 Board Component Locations ...

  • Agilent Technologies 66332A - page 76

    Figure 6 -2. A 4 and A6 Board Component Locations ...

  • Agilent Technologies 66332A - page 77

    Figure 6-3. A1 Board schem atic (sh eet 1) ...

  • Agilent Technologies 66332A - page 78

    Figure 6-3. A1 Board schem atic (sh eet 2) ...

  • Agilent Technologies 66332A - page 79

    Figure 6-3. A1 Board schem atic (sh eet 3) ...

  • Agilent Technologies 66332A - page 80

    Figure 6-4. A6 Relay Option Board sch ematic ...

  • Agilent Technologies 66332A - page 81

    81 Index —+— +OUT, 47 +sense, 47 —A— A1 boar d remova l, 45 A1 Main boa rd, 50 A2 boar d remova l, 44 A2 Interface Board, 48 A2S201 , 50 A3 boar d remova l, 45 A3 Front Panel, 48 ADC , 4 8 —B— bias volta ges, 38, 39 —C— cal de nied, 41 calibration, 41 calibra tion - post repair, 41 CC, 38 CC line regulation, 17 CC load effect, 18 CC ...

  • Agilent Technologies 66332A - page 82

    Index 82 —J— J307 voltages , 39 —L— line voltag e wiring, 46 —M— ma nual revisi ons, 10 —N— noti ce, 5 —O— -OUT, 47 out of ra nge, 41 OV_Dete ct* , 48, 52 OV_Prog , 50 OV_SCR* , 48, 52 —P— PARD, 15, 19 passw ord, 41 perf ormance test form , 19 perf ormance tests, 13 PM_Inhibit , 52 powe r-on self-te st, 37 primary interface, ...

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