Keithley 2700 Service Manual

4-14 Troubleshooting
Table 4-7
Ω2 signal switching
Range Q101 Q102 Q114 Q136 Q109 K101* K102* Q113 Q105 Q104 Q108
100Ω
1kΩ
10kΩ
100kΩ
1MΩ
10MΩ
100MΩ
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
SET
SET
SET
SET
SET
SET
SET
RESET
RESET
RESET
RESET
RESET
RESET
RESET
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
ON
ON
ON
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
* K101 set states: Pin 8 switched to Pin 7
Pin 3 switched to Pin 4
K102 reset states: Pin 8 switched to Pin 9
Pin 3 switched to Pin 2
Table 4-8
Ω4 signal switching
Range Q101 Q102 Q114 Q136 Q109 K101* Q113 Q105 Q104 Q108
100Ω
1kΩ
10kΩ
100kΩ
1MΩ
10MΩ
100MΩ
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
SET
SET
SET
SET
SET
SET
SET
ON
ON
ON
ON
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
* K101 set states: Pin 8 switched to Pin 7
Pin 3 switched to Pin 4
Table 4-9
Ω2/Ω4 reference switching
Range U133/0.7V U133/7V Q123 Q125 Q124 Q126 Q120
100Ω
1kΩ
10kΩ
100kΩ
1MΩ
10MΩ
100MΩ
OFF
OFF
OFF
ON
ON
OFF
OFF
ON
ON
ON
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
OFF
ON
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
ON
ON
OFF
OFF
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
OFF
OFF

Keithley 2700 Specifications

General

Type	Digital Multimeter
Measurement Functions	DC Voltage, AC Voltage, DC Current, AC Current, Resistance, Frequency, Temperature
DC Voltage Range	100 mV to 1000 V
AC Voltage Range	100 mV to 750 V
Frequency Range	3 Hz to 500 kHz
Temperature Range	-200°C to +1372°C
Display	Vacuum Fluorescent Display
Connectivity	IEEE-488, RS-232
Channels	10
Power Supply	100V to 240V AC, 45Hz to 66Hz
DC Current Range	10 µA to 3 A
AC Current Range	10 µA to 3 A
Temperature Measurement	Thermocouple, RTD