Vetek Weighing AB
www.vetek.com
JWL Service Manual
May not be reproduced in any form without written permission
PAGE
40
10-2
.
LCD circuit
Title
Number
Revision
Size
A3
Date:
1-Sep-2008
Sheet of
File:
料料
资
E:\jadever\LX
\L-SCALE.ddb
Drawn By:
KIN4
K
O
U
T
3
K
O
U
T
1
K
O
U
T
2
KIN5
KIN3
+
1
-
2
+
3
-
4
+
5
-
6
+
1
-
2
+
3
-
4
+
5
-
6
LED4
1
2
SW7
1
2
SW8
1
2
SW9
1
2
SW2
1
2
SW4
1
2
SW6
1
2
SW1
1
2
SW5
1
2
SW3
C61
33p
C63
33p
C64
33p
C66
33p
C65
33p
C60
33p
C62
33p
S
3
3
S
4
4
S
5
5
S
6
6
S
7
7
C
4
8
C
3
9
C
2
1
0
C
1
1
1
C
1
1
2
C
4
1
5
S
8
1
6
S
9
1
7
S
1
0
1
8
S
1
1
1
9
S
1
2
2
0
S
1
3
2
1
S
1
4
2
2
S
1
5
2
3
S
1
6
2
4
S
1
7
2
5
S
1
8
2
6
S
1
9
2
7
S
2
0
2
8
S
2
1
2
9
S
2
2
3
0
S
2
3
3
1
S
2
4
3
2
S
2
2
S
1
1
C
2
1
3
C
3
1
4
S
2
5
3
3
LCD4
C54
33p
C69
33p
C70
33p
C50
33p
C53
33p
C67
33p
C68
33p
C57
33p
C56
33p
C52
33p
C51
33p
C42
33p
C43
33p
C44
33p
C55
33p
C46
33p
C47
33p
C49
33p
C48
33p
C45
33p
R58
4700
Ω
,C
R57
220
Ω
,C
CP19
0.1u,G
SEG7
1
SEG6
2
SEG5
3
SEG4
4
SEG3
5
SEG2
6
SEG1
7
SEG0
8
CS
9
RD
10
WR
11
DATA
12
Vss
13
OSC0
14
OSC1
15
VLCD
16
VDD
17
IRQ
18
BZ
19
BZ
20
COM0
21
COM1
22
COM2
23
COM3
24
SEG31
25
SEG30
26
SEG29
27
SEG28
28
SEG27
29
SEG26
30
SEG25
31
SEG24
32
SEG23
33
SEG22
34
SEG21
35
SEG20
36
SEG19
37
SEG18
38
SEG17
39
SEG16
40
SEG15
41
SEG14
42
SEG13
43
SEG12
44
SEG11
45
SEG10
46
SEG9
47
SEG8
48
U14
HT1621B
C58
33p
C59
33p
C
S
19
C
S
18
C
S
6
C
S
1
C
S
5
C
S
12
C
S
3
C
S
2
C
S
4
C
S
9
C
S
8
C
S
7
C
C
2
C
S
16
C
S
1
7
C
S
22
C
S
21
C
S
11
C
S
20
C
C
3
C
S
24
C
S
15
10 - 3.
Applicable mainboard version and software version
Mainboard version: JWL-V1.1 (50-0900-0000)
Software version: JWL1.01
Revision date: Nov. 28, 2008