Roche 91 Series - Display Daughter PCB - 9110

Roche Diagnostics April 2007
Service manual · Version 2.0 A-53
91xx pH/Electrolyte Analyzers 5 Electronic diagrams
Electronic diagrams
Display daughter PCB - 9110
Figure A-18 Display daughter PCB - 9110
+24V
R13
90.9K 1%
12
+24V
DD2
R34 5.1 2W
1 2
R11
90.9K 1%
12
C6 0.1uF
12
VBKL
+ -
U1C
TLC279
10
9
8
R30 220
12
+5VA
R22 9.09K 1%
12
DD0
+
-
U2A
LM324
3 2
1
114
+
-
U2C
LM324
10 9
8
+5VA
JP4 AMP 103670-2
1 2 3
BREADBOARD VERSION FOR FEASIBILITY
R26 10M
12
R28 TBD
12
CONTRAST
R1 10K
1 2
R5 100K
12
R16
1K
1 2
+
C9 10uF
1 2
D1
1N4148
K1
DIP RELAY SPDT
7
1
14
2
6
BREADBOARD VERSION FOR FEASIBILITY
DD2
YES
D4 1N4148
+5VA
R35 470K
1 2
R8 1M
12
VCC
R23 562 1%
12
K SOLDER PAD
1
MOLEX
R17 1K
12
JP6 HEAD ER 14 1 2 3 4 5 6 7 8 9 10 11 12 13 14
THER MISTOR 2
R4 100K
12
SAMP2
D2
1N4148
JP1 RJ12
1 2 3 4 5 6
R7
100K
12
R9 470
1 2
R21 10K
12
R20 500
R25 7.5K 1%
12
DD1
SSEN
R18 10K
1 2
R10
50K
VCC
+5VA
VCC
+ -
U1D
TLC279
12 13
14
VCC
DD6
YES-
Q2 2N3904
1
2
3
+
C8 10uF
1 2
+24V
VCC
DD1
R14 1M
1 2
C1
1nF
12
VCC
DD6
+10V
S1 IP1241.1082.3
DD5
ZD5010 E SCHEMATIC, PCB, pH DISPLAY, 9110
B
22Monday, March 03, 2003
Tit le Size Document Number Rev Date: Sheet
of
DD4
R24 1K
1 2
R6
150K
1 2
Q1 2N3904
1
2
3
C4 1uF
12
C5 1.0uF
12
TP1
LCD DISPLAY
R3 1M
12
S2 IP1241.1082.3
R29 68K
1 2
+ -
U2D
LM324
12 13
14
PHTEMP BREADBOARD
+
-
U2B
LM324
5 6
7
R33
1
1 2
DISPEN
DD7
R15 10K
1 2
DD0
D6 1N4148
-Vss
D7 LED
1 2
MOLEX 15-43-8566
+10V
+5VA
R12
3.09K 1%
12
ZPWB1 PWB
DD3
PHTEMP BREADBOARD
TEMP
DD7
C7 0.1uF
12
DD3
JP5 HEADER 26
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
A SOLDER PAD
1
TEMP
BLOCK THER MISTOR 1
R19 470
1 2
DISPR/W-
R32 1.5K
1 2
D3
1N4148
R31 1.5K
12
SCHURTER
BLOCK
R27 TBD
12
+ -
U1A
TLC279
3 2
1
11 4
R JUNCTION
+10V
SCHURTER
SAMP1
D5 1N4148
NO-
"TEMP SET"
SAMPCONT
NO
+
-
U1B
TLC279
5 6
7
DD4
DD5
C2 0.1uF
1 2
-Vss
+24V
DATA/INST-
R2 5.1 2W
12
+
C3 2.2uF
12
CLL 24 FEB 1992
BASE
SAMPCONT