Roche 91 Series - SBC PCB - Valve Drivers - 9110, 9120, 9130, 9140

Roche Diagnostics April 2007
A-44 Service manual · Version 2.0
5 Electronic diagrams 91xx pH/Electrolyte Analyzers
Electronic diagrams
SBC PCB - valve drivers - 9110, 9120, 9130, 9140
Figure A-9 SBC PCB - valve drivers - 9110, 9120, 9130, 9140
VALVEC-
Q13 MJE800
+
C39
2.2uF/50V
12
OPEN3
Q12 MJE800
SGND
VALVEB-
C32 0.1uF
12
+
C40
2.2uF/50V
12
R14 1K
1 2
OPEN5
Q11 MJE800
R20 1.5K
12
R21 4.7K
1 2
C31 0.1uF
12
R15 1K
1 2
OPEN1
+24V
TP16 UT35-017
1
Q10 MJE800
"+22V/12.5V"
Q8 2N3904
mb3.sch
R13 1K
1 2
A
OPEN2
U5 LM317
3 2
1
VIN VOUT
ADJ
Q9 MJE800
+
C38
2.2uF/50V
12
VALVE-
R12 1K
1 2
SGND
R18 200 1%
12
OPEN4
THER M-
R17 180K
12
R19 1.82K 1%
12
VALVE DRIVERS
OVERTEMP-
+
C37
2.2uF/50V
12
R16 360K
1 2
VALVEA- VALVEV-
R11 1K
1 2
ZD5005
F
SCHEMATIC, MAIN BOARD 91XX
39Thursday, June 27, 2002
Tit le Size Document Number Rev Date: Sheet
of
ZHS2 HEATSINK
+
C36
2.2uF/50V
12
VALVE+ VALVER-