Keithley 2015 Service Manual

Troubleshooting 4-21
Analog signal switching states
Tables 4-5 through 4-11 provide switching states of the various relays, FETs, and analog
switches for the basic measurement functions and ranges. These tables can be used to assist in
tracing an analog signal from the input to the A/D multiplexer.
Table 4-5
DCV signal switching
Table 4-6
ACV and FREQ signal switching
Range Q101 Q102 Q114 Q136 Q109 K101* Q113 Q105 Q104 Q108 Q121
100mV
1V
10V
100V
1000V
ON
ON
ON
OFF
OFF
ON
ON
ON
OFF
OFF
OFF
OFF
OFF
ON
ON
OFF
OFF
OFF
ON
ON
OFF
OFF
OFF
OFF
OFF
SET
SET
SET
SET
SET
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
ON
ON
ON
ON
* K101 set states:
Pin 8 switched to Pin 7
Pin 3 switched to Pin 4
Range Q101 Q102 K101* K102*
U103
pin 8
U103
pin 9
U105
pin 9
U105
pin 8
U103
pin 16
U103
pin 1
U105
pin 1
U111
pin 16
100mV
1V
10V
100V
750V
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
RESET
RESET
RESET
RESET
RESET
RESET
RESET
SET
SET
SET
ON
ON
OFF
OFF
OFF
ON
ON
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
OFF
OFF
OFF
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
OFF
ON
OFF
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
* K101 and K102 reset states:
K101 and K102 set states:
Pin 8 switched to Pin 9
Pin 3 switched to Pin 2
Pin 8 switched to Pin 7
Pin 3 switched to Pin 4

Keithley 2015 Specifications

General

Model	Keithley 2015
Category	Multimeter
DC Voltage Range	100 mV to 1000 V
AC Voltage Range	100 mV to 750 V
Frequency Range	3 Hz to 300 kHz
Resistance Range	100 MΩ
DC Current Range	3 A
DC Current Accuracy	0.05%
AC Current Range	3 A
Display	5.5 digit
Connectivity	GPIB
Power Supply	100 V to 240 V AC, 50 Hz to 60 Hz