Keithley 485 Instruction Manual page 47

Autoranging picoammeter
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Table 6-I. Mother
Board,
Parts List iCont.1
Circuit
Desig.
R105
RI06
RI07
R108
I3109
RI10
RI11
R112
R113
R114
RI15
R116
RI17
RI18
Fill9
R120
R121
R122
R123
R124
RI25
R128
R127
RI28
R129
RI30
SlOl
5102
TIOI
UlOl
lJ102
u103
u104
u105
U106
u107
U108
u109
UllO
Ulll
u112
u113
u114
u115
U116
Description
Resistor, IOOkD, O.l%, l/lOW,
Metal Film
Resistor, l.lMD,
O.l%, 1/8W
Resistor, IlMD,
0.7%, IW, Cermet Film
Resistor, 99M61, 0.5%, 1/4W, Metal Oxide
Resistor, IOMO, 10%. 1/4W, Composition
Resistor, 220kD, 5%. 1/4W, Composition
Resistor, 49912, 1 %, 1/8W, Composition
Resistor, 243B, 1%. 1/8W, Composition
5OOD, IO%, 3/4w,
Pot
Resistor Set, 260kC. 0.1%
Resistor Set, 280kC. 0.1%
Resistor, IOkC, 5%. ll4W.
Composition
Resistor, 9100, lo%,
1W. Composition
Thick Film Resistor Network
Resistor, IOOkD, 5%. 1/4W, Composition
Thick Film Resistor Network
Thick Film Resistor Network
Thick Film Resistor Network
Resistor, lOOk0, 5%. 1/4W, Composition
Resistor, 10MC. lo%,
1/4W, Composition
Resistor, 27C, lo%, 2W. Composition
Resistor, 8.06k0, l%, 1/8W, Composition
Resistor, 1.24kC, I%, 1/8W, Composition
Resistor, 47k61, 5%, 1/4W, Composition
Resistor, 1000, 5%, 'IW, Composition
Resistor, 5.lkD, 5%. 1/4W, Composition
Pushbutton
Switch Station
Line Switch
Transformer,
Power (105-125V, 210-25OV)
Triple 2-Channel Analog Multiplexer,
CD40538C
Triple Z-Channel Analog Multiplexer,
CD4053BC
Triple 2Channel
Analog Multiplexer,
CD4053BC
Programmable Op Amp, TLC271
Linear Op Amp LM308AN
Hex Inverter, 74HC04
Programmable Op Amp, TLC271
Triple 2Channel
Analog Multiplexer,
CD40538C
Op Amp, TLOGICP
Dual Voltage Comparator,
LM393
Peripheral Interface Adapter, 65C21
1024 x 4 Bit Static CMOS RAM
8k x 8 UV Erasable PROM
Triple 3-Input OR Gate, CD4075BE
Triple 3-Input NAND Gate, MM74HClO
12 Stags Binary Counter, 40408
Location
Sch*
Pcb
c3-1
c4
c3-1
c4
D4-1
84
c4-1
c5
85-l
C5
B5-1
C5
c5-1
c4
D5-1
D4
U-1
B5
c5-1
c3
D5-1
D3
E3-1
C3
E4-1
C3
Sev
C2
El-l
83
Sev
C3
Sev
E3
SW
c2
El-l
C3
F8-2
F5
Fl-2
E3
Gl-2
E3
G2-2
E3
H5-2
D3
E4-1
E2
C4-1
85
Sev
83
El-2
F3
Fl-2
D2
SW
c3
Sev
c2
Sev
C2
F2-1
C2
D5-1
C3
SW
D4
F4-1
C2
SW
D2
82-2
c3
c2-2
c3
C4-2
D3
A8-2
D5
C6-2
D5
SW
E3
Sev
E4
D3-2
E4
Keithlev
Part Nd.
R-263-IOOk
R-176-l.lM
R-302-1 1 M
R-269-99M
R-76-IOM
R-76-220k
R-88-499
R-88-243
RP-89-500
R-306
R-306
R-76-10k
R-2-910
TF-169
R-78-IOOk
TF-172
TF-173
TF-171
R-76-IOOk
R-76-10M
R-3-27
R-88-8.08k
R-881.24k
R-76-47k
R-76-100
R-78-5.lk
SW-455
SW-318
TR-201
IC-283
K-283
IC-283
IC-347
K-203
K-354
IC-347
IC-283
IC-227
ICI-343
LSI-61
LSI-53
485-800-**
ICI43
IC-341
IC-348
6-5

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