Roche 91 Series - SBC PCB - Temperature Circuit - 9180, 9181

Roche Diagnostics April 2007
Service manual · Version 2.0 A-61
91xx pH/Electrolyte Analyzers 5 Electronic diagrams
Electronic diagrams
SBC PCB - temperature circuit - 9180, 9181
Figure A-26 SBC PCB - temperature circuit - 9180, 9181
TEMP
R52
10K 1%
1 2
R62 1K
1 2
R110 100K
12
R51 10K 1%
12
A
U18 MAX674
2 4 5
6
VIN GND TRIM
VO
R53 274K 1%
12
TP13
1
R49 7.5K 1%
12
R59
118K 1%
1 2
R55 68.1K 1%
1 2
+5VA
TEMPOU
T
R56 90.9K 1%
12
ZD5015
G
SCHEMATIC, MAIN BOARD 9180 / 9181
811Monday, May 03, 1999
Title Size Document Number Rev Date: Sheet
of
D16 1N4148
2 1
R54 10KPOT
13
2
-5VA
"TEMP ADJ."
+ -
U17B LF412
5 6
7
"10.00V"
+10V
+24V
TP12
1
+ -
U17A LF412
3 2
1
8 4
"TEMP"