![background image](http://html1.mh-extra.com/html/keithley/sourcemeter-3a-2420/sourcemeter-3a-2420_service-manual_3950476089.webp)
6-6
Replaceable Parts
Q521
TRANSISTOR
TG-357
Q522,524,600
TRANS, NPN, MMBT3904
TG-238
Q526,527,530,531
TRANS, N CHANNEL MOSFET,
SI9410DY
TG-302
Q532
TRANS,N-CHANNEL FET,IRF630
TG-214
Q533
TRANS,P-CHANNEL 200V FET,IRF9630
TG-215
R117-128,133-136,141-144
RES, 10K, 5%, 250MW, METAL FILM
R-376-10K
R129,211,224-
229,234237,244,247,281,282
RES, 10K, 1%, 100MW, THICK FILM
R-418-10K
R137-140,145-149
RES, 10K, 5%, 250MW, METAL FILM
R-376-10K
R150,151,389,390,431,432,433,434,5
20,536
RES, 1K, 1%, 100MW, THICK FILM
R-418-1K
R152,291,293
RES, 42.7K, .1%, .125W,THIN FILM
R-456-42.7K
R155,669
RES, 10K, 1%, 100MW, THICK FILM
R-418-10K
R200,201,203,232,238
RESISTOR NETWORK, 10K-10K
TF-236
R202,204,252,255,256,259,260,263,
264,267
RES, 100K, 1%, 100MW THICK FILM
R-418-100K
R205,310,485,552,667
RES, .0499, 1%, 100MW, THICK FILM
R-418-.0499
R207
RES, 20K, .1%, .125W THIN FILM
R-456-20K
R210,208
RES, 768, 1%, 100MW, THICK FILM
R-418-768
R212
RES, 332, 1%, 100MW, THICK FILM
R-418-332
R213
RES NET 5K, .1%, 668A
TF-243-5K
R216,221,274-279,223
RES, 20K, 1%, 100MW THICK FILM
R-418-20K
R217,500,515
RES, 121K, 1%,100MW, THICK FILM
R-418-121K
R218
RES, 80.6K, 1%, 100MW THICK FILM
R-418-80.6K
R219,220,222,230,231,373,374,616,
700,701
RES, 49.9K, 1%, 100MW THICK FILM
R-418-49.9K
R240,243,248,251,253,254,257,258,
261,262
RES, 4.99K, 1%, 100MW THICK FILM
R-418-4.99K
R241,242,249,250,653,664
RES, 140K, 1%, 100MW THICK FILM
R-418-140K
R265,266,311-
317,334,335,337,339,357,366
RES, 4.99K, 1%, 100MW THICK FILM
R-418-4.99K
R268-271,209
RES, 1M, 1%, 100MW, THICK FILM
R-418-1M
Table 6-1 (cont.)
Analog board parts list
Circuit designation
Description
Keithley
part no.
Summary of Contents for SourceMeter 3A 2420
Page 2: ...Model 24203A SourceMeter Service Manual A G R E A T E R M E A S U R E O F C O N F I D E N C E...
Page 15: ...1 Performance Verification...
Page 31: ...2 Calibration...
Page 53: ...3 Routine Maintenance...
Page 56: ...3 4 Routine Maintenance...
Page 57: ...4 Troubleshooting...
Page 70: ...4 14 Troubleshooting...
Page 71: ...5 Disassembly...
Page 78: ...5 8 Disassembly...
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Page 84: ...6 Replaceable Parts...
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Page 107: ...A Specifications...
Page 112: ...A 6 Specifications...
Page 113: ...B Command Reference...
Page 124: ...B 12 Command Reference...
Page 125: ...C Calibration Programs...