Keithley 177 Instruction Manual page 41

Table 6-1. Model 1779 Spare Parts Kit
my.
2
1
5
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
*An
T
Keithley
Part No.
DD-30
DD-31
FU-13
FU-20
K-93
IC-102"
IC-139"
IC-168"
IC-169
IC-197"
IC-203
IC-205
KN-41-1
LSI-11
LSI-12
RL-56
TF-80
TG-77
TG-93
TG-94"
Q104
Static Protection Et Hand1
Schematic
Number
DS202, 3,
4,5
DS201
FlOl
F102
Vi3101
u201
Ulll
U203
u202
UllO
u107, 109
U108
Front Panel
zero
U106
u105
KlOl
R126
0101, 102,
105
Q103
ing
Description
7-Segment Display
+ 1 Display
Line Fuse
Current Fuse
+ 5v Regulator
CMOS NAND Gate IC
CMOS Hex lnverter IC
Segment Driver IC
Digit Driver IC
CMOS Binary Con-
verter IC
OP Amp IC
OP Amp IC
Knob
Loaic Processor IC
An&a Processor IC
Relay -
Thick Film Resistor
2N4392JFET
2N3439 Transistor
Dual MOSFET