Keithley SourceMeter 3A 2420, Service Manual

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Replaceable Parts 6-9
R614,615,553 RES, 2.21K, 1%, 100MW, THICK FILM R-418-2.21K
R618 RES, 34K, 1%, 100MW, THICK FILM R-418-34K
R619 RES, 4.75K, 1%, 100MW, THICK FILM R-418-4.75K
R620 RES, 82.5, 1%, 100MW, THICK FILM R-418-82.5
R623 RES, 10, 10%, 100MW, THICK FILM R-418-10
R650,651 RES NET, 9K-1K, MICRO DIVIDER TF-246-2
R652,665 RES, 357, 1%, 100MW, THICK FILM R-418-357
R656 RES, 6.04K, .1%, .125W THIN FILM R-456-6.04K
R657,658 RES, 1M, 1%, 100MW, THICK FILM R-418-1M
R666 RES NET, 3K, 12K, 0.1%, 100MW THIN-
FILM TF-237-2
R703,153,154 RES, 4.99K, 1%, 100MW THICK FILM R-418-4.99K
R704,706,707,502,510 RES, 1K, 1%, 100MW, THICK FILM R-418-1K
R710 RESISTOR R-474-.065
RT200 POLYSWITCH, PTC RESISTOR RT-17
RT500 THERMISTER, PD=7MW/DEG C,
1500V,613.74K RT-8
TP218-225 CONN,TEST POINT CS-553
TP500-510,TP227,228,230-235,200-
215 CONN,TEST POINT CS-553
U202,650,203 IC, OP AMP LT1112 IC-1048
U204,229 IC, 8-CHAN ANA MULTI-
PLEXER,DG408DY IC-844
U205,407 IC, HEX INVERTERS, 74HCT04 IC-880
U209,215 IC, QUAD COMPARATOR,LM339D IC-774
U210,220 IC, DUAL BIPOLAR OP-AMP, LT1124CS8 IC-955
U211,213 IC, BIFET OP AMP, AD712JR IC-834
U212,214,230,241,400-406,652 IC, CMOS ANAL SWITCH, DG444DY IC-866
U221,227 IC, DIFF. AMP, AMP03GP IC-988
U222 IC, OP-AMP, LTC1050CS8 IC-791
U223,411,507,508 IC, MOSFET DRIVER, TLP591B IC-877
U226,659 IC, 20V OP-AMP, LT1097S8 IC-767
Table 6-1 (cont.)
Analog board parts list
Circuit designation Description
Keithley
part no.