Thermo Scientific GENESYS 20 Service Manual page 108

Drawings and Schematics
Ref. Des.
R22
R23
R24
R25
R26
R27
R28
R29
R30
R31
R32
R33
R34
R35
R36
R37
U1
U2
U3
U4
U5
U6
U7
U8
U9
U10
U11
U12
U13
U14
U15
U16
U17
U18
U19
U20
U21
U22
U23
U24
U25
U26
Description
S/A R17 634.0 K 1% 1/4W MF
S/A R19 4.99 K 1% 1/4W MF
S/A R18 10.0 K 1% 1/4W MF
Resistor MF, 1.00 K 1% 1/4W
Resistor MF, 49.9 K 1% 1/4W
S/A R4 10 K 5% 1/4W CF
S/A R25 1.00 K 1% 1/4W MF
Resistor MF, 2.49 K 1% 1/4W
S/A R17 634.0 K 1% 1/4W MF
S/A R3 470 Ohm 5% 1/4W CF
Resistor MF, 1.50 M 1% 1/4W
S/A R19 4.99 K 1% 1/4W MF
S/A R19 4.99 K 1% 1/4W MF
S/A R29 2.49 K 1% 1/4W MF
S/A R2 47 K 5% 1/4W CF
S/A R4 10 K 5% 1/4W CF
Not Presently Used
Not Presently Used
Programmed AM27C512
IC X28C16
IC 74HC373
IC 74HC244
IC 74HC00
IC MC145406
IC 74HC374
S/A U9 74HC374
IC 74HC257
IC DS1233D-10
IC 74HC08
IC 74HC138
IC 74HC240
S/A U9 74HC374
IC 74HC273
S/A U17 74HC273
S/A U15 74HC240
S/A U17 74HC273
Not Presently Used
IC 80C251
IC 74HC04
IC 74HC139
IC 74HC154
IC MC34166T
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