Roche 91 Series - Page 81

Roche Diagnostics April 2007
Service manual · Version 2.0 A-67
91xx pH/Electrolyte Analyzers 5 Electronic diagrams
Electronic diagrams
Display daughter PCB - 9180
Figure A-32 Display daughter PCB - 9180
SAMPLEGND
S1
IP1241.1082.3
1 2
SCHURTER
DD4 DD4
DD2
JP2
HEADER 34
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
DD5
DATA/INST-
DD1
SAMPLEPT
CONTRAST
+5VA
DISPR/W-
DD3
DD1
+5VA
JP4
22-03-2141
1
2
3
4
5
6
7
8
9
10
11
12
13
14
MOLEX 15-43-8566
VCC
DD3
DD0
DD5
DD6
SAMPLE
SENSOR
NO-
ZPWB1
PWB
SAMPLELED-
YES-
VCC
DD[0..7]
DD7
YES
+24V
NO
S2
IP1241.1082.3
1 2
DD0
TEMP
LCD
DISPLAY
VCC
ZD5016
SCHEMATIC, DISPLAY BOARD, 9180
11Monday , July 22, 2002
Title
Size Document Number
Rev
Date: Sheet of
A
C
DD2
JP1
RJ12
1
2
3
4
5
6
MOLEX
DD7
DD6
SCHURTER
+5VA