Table 4-17 2 Signal Multiplexing And Gain; Table 4-18 4 Signal Multiplexing And Gain; Table 4-19 4 Dry Circuit Signal Multiplexing And Gain - Keithley 2750 Service Manual

Model 2750 Multimeter/Switch System Service Manual
Table 4-17
2 signal multiplexing and gain
Range
10
100
1k
10k
100k
1M
10M
100M
Table 4-18
4 signal multiplexing and gain
Range
1
10
100
1k
10k
100k
1M
10M
100M
Table 4-19
4 dry circuit signal multiplexing and gain
Range
1
10
100
1k
Signal U129 U129
(U163) Pin 1 Pin 8
S4 OFF
S4 OFF
S4 OFF
S4 OFF
S4 OFF
S4 ON
S4 ON
S4 ON
Signal U129 U129
(U163) Pin 1 Pin 8
S4 then S7 OFF
S4 then S7 OFF
S4 then S7 OFF
S4 then S7 OFF
S4 then S7 OFF
S4 then S7 OFF
S4 then S7 ON
S4 then S7 ON
S4 then S7 ON
Signal U129
(U163) Pin 1
S4 then S7 OFF
S4 then S7 OFF
S4 then S7 OFF
S4 then S7 OFF
U129 Gain
Pin 9 (U166)
100
OFF ON
100
OFF ON
10
ON OFF
10
ON OFF
10
ON OFF
1
OFF OFF
1
OFF OFF
1
OFF OFF
U129 Gain
Pin 9 (U166)
100
OFF ON
100
OFF ON
100
OFF ON
10
ON OFF
10
ON OFF
10
ON OFF
1
OFF OFF
1
OFF OFF
1
OFF OFF
U129 U129 Gain
Pin 8 Pin 9 (U166)
100
OFF ON
100
OFF ON
100
OFF ON
100
OFF ON
Troubleshooting 4-23