Keithley 2400 Service Manual

6-9 Model 2400 Service Manual
Replaceable Parts
2400-902-01 (G - Feb 2006)
U607 IC, OP-AMP, NE5534D IC-802
U608 IC, VOLT. COMPARATOR, LM311M IC-776
U224,602,603,651 IC, QUAD 2 IN NOR, 74HCT02 IC-809
U660,661 IC, 16 BIT DAC, AD7849BR IC-1004
VR200,201 DIODE, ZENER, 11V, MMSZ11T1 DZ-103
VR214,215 DIODE, ZENER, 8.2V, MMBZ5237 DZ-92
VR216,217 DIODE, ZENER, 17V, MMBZ5247BL DZ-104
VR400,401 DIODE, ZENER, 4.7V, IN4732A DZ-67
VR403,601,604 DIODE, ZENER, 3.3V, MMBZ5226BL DZ-94
VR404-406 DIODE, ZENER, 5.1V, BZX84C5V1 DZ-88
VR500,501 DIODE, ZENER, 6.0V, BZX84B6V2 DZ-87
VR600 DIODE, ZENER, 6.4V, IN4579 DZ-73
VR602,603 DIODE, ZENER, 6.2V, MMSZ6V2 DZ-97
W401 JUMPER J-15
Y600 OSCILLATOR HIGH SPEED CMOS, 12MHZ CR-37
Table 6-1 (cont.)
Analog board parts list
Circuit designation Description
Keithley
part no.

Keithley 2400 Specifications

General

Model	2400
Category	SourceMeter
Voltage Source Range	±200 V
Power Output	20 W
Voltage Measurement Resolution	100 nV
Current Measurement Resolution	10 pA
Resolution	5.5 digits
Interfaces	GPIB, RS-232
Current Source Range	±1A
Current Measurement Range	±1A
Resistance Measurement Range	2 Ω to 200 MΩ
Display	Vacuum Fluorescent Display