Dca Signal Multiplexing And Gain; Ω 2 Signal Multiplexing And Gain; Ω 4 Signal Multiplexing And Gain - Keithley 2015 Service Manual

4-24 Troubleshooting
Table 4-14

DCA signal multiplexing and gain

Signal U129
Range (U163) pin 1
10mA S6 OFF
100mA S6 OFF
1A S6 OFF
3A S6 OFF
Table 4-15
Ω 2 signal multiplexing and gain
Signal U129
Range (U163) pin 1
100Ω S4 OFF
1kΩ S4 OFF
10kΩ S4 OFF
100kΩ S4 OFF
1MΩ S4 ON
10MΩ S4 ON
100MΩ S4 ON
Table 4-16
Ω 4 signal multiplexing and gain
Signal U129
Range (U163) pin 1
100Ω S4 then S7 OFF
1kΩ S4 then S7 OFF
10kΩ S4 then S7 OFF
100kΩ S4 then S7 OFF
1MΩ S4 then S7 ON
10MΩ S4 then S7 ON
100MΩ S4 then S7 ON
U129 U129 Gain
pin 8 pin 9 (U166)
×100
OFF ON
×100
OFF ON
×100
OFF ON
×10
ON OFF
U129 U129 Gain
pin 8 pin 9 (U166)
×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
×10
ON OFF
×10
ON OFF
×10
ON OFF
×1
OFF OFF
×1
OFF OFF
×1
OFF OFF