Digital I/O Board Parts List - Keithley 706 Instruction Manual

Circuit
Desig.
u119
u120
u121
u122
U123
U124
U125
U126
U127
Table 63: Mother Board Parts LietWmt.) ..--_-
Description
Decoder/Demultiplexer, 74LS138
Versatile Interface Adapter, SY6522
Clock/Calendar, UPD 1990 AC
Hex Buffer, 4050
8 stage shift register, 14094
Quad 2-input NAND, 4011
Hex inverter, 74LSO4
Buffer Gates, 74LS125
Quad 2-input NAND, 4011
Location Keithieii;
scii
Pcb Part No.
Cl-1 G3 ICI-182
E5-2 C4 LSI-28
G5-2 F4 ic-330
c6-1 G4 IC-107
E5-1 F4
IC-251
SEV F4 ic-102
F4 ic-186
:g F4 IC-336
SEV B4 ic-102
-YlOl Crystal, 4MHt
Y102 Crystal, 32.768kHz
A3-2 D3
CR-10
G4-1 F4 CR-20
NOTE
The mother board schematic is spread out over two pages. The location of the
components on which page is noted by the dash numbers in the location.
Table 6-4. Digital i/O Board Parts List
Circuit
Desig .
c301
C302
c303
CR301
CR302
CR303
CR304
Q301
R301
R302
R303
R304
R305
R306
u301
U302
u303
u304
u305
I Location Keithiey
Description Sch Pcb Part No.
Capacitor, O.lpF, 5OV, Ceramic Disc
-s-l-z- C-237-. 1
Capacitor, O.lpF, 5OV, Ceramic Disc
F2 D3 C-237-. 1
Capacitor, O.lpF, 5OV, Ceramic Disc
F3 D2 C-237-. 1
Bridge Rectifier, VM18 E4 D3 RF-52
Bridge Rectifier, VM18 D4 03 RF-52
Bridge Rectifier, VM18 E4 D3 RF-52
Bridge Rectifier, VM18 D4 E3 RF-52
' NPN, Silicon Transistor, 2N3904 c3 E2 TG-47
Thick Film Resistor, Network SEV c2 TF-90
Thick Film Resistor Network SEV c2 TF39
Resistor, 683, lo%, HW, Compositon R-l-68
Thick Film Resistor Network TF-141
Resistor, 2.2k, 5%, XW, Composition R-762.2k
Resistor, 5.1 k, 5%, '/4 W, Composition R-765.lk
8 stage shift register, 4021 D2 IC-130
Quad Binput NOR, 74LSO2 S% D2 IC-179
8 stage shii register, 14094 E2 IC-251
Hex inverter. 74LSO4 SE E2 ic-186
1 Hex inverter; 74LSO4 SEV E3 1 ic-186