3-7. DISPLAY CIRCUIT
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
CN11
C03-20AG1 10 x 2 (MALE)
FB6
0(3216)
FB7
0(3216)
R36
0
VCC5
C22
0.1uF
+
EC10
1000uF_16V
LC_CD#
LC_RD#
LC_RST#
LC_WR#
LC_D0
LC_D1
LC_D2
LC_D3
LC_D4
LC_D5
LC_D6
LC_D7
LC_CE#
LC_LEDA
C
128
10
0pF
C
127
10
0pF
C
126
10
0pF
C
125
10
0pF
C
124
10
0pF
C
123
10
0pF
C
115
10
0pF
C
122
10
0pF
C
121
10
0pF
C
120
10
0pF
C
119
10
0pF
C
118
10
0pF
C
117
10
0pF
C
116
10
0pF
A1
2
A2
3
A3
4
A4
5
A5
6
A6
7
A7
8
A8
9
G
19
DIR
1
B1
18
B2
17
B3
16
B4
15
B5
14
B6
13
B7
12
B8
11
VC
C
20
GN
D
10
1
0
U11
SN74LV245APWR
R66
33
R67
33
R68
33
R69
33
R70
33
R71
33
R72
33
R73
33
R74
33
R75
33
R76
33
R77
33
R78
33
C20
0.1uF
C23
0.1uF
VCC3
VCC3
D0
D1
D2
D3
D4
D5
D6
D7
RD#
A0
LCD_RST#
WR#
LCD_CS#
B
E
C
Q6
DTC143EKA
B
E
C
Q7
2SA1036K
R168
2K
VCC5
R98
10K
RD#
A1
2
A2
3
A3
4
A4
5
A5
6
A6
7
A7
8
A8
9
G1
1
G2
19
Y1
18
Y2
17
Y3
16
Y4
15
Y5
14
Y6
13
Y7
12
Y8
11
VC
C
20
GN
D
10
U12
SN74LV541APWR
C55
*1000pF
LCD Module
C21
0.1uF
C24
0.1uF
3
1
2
A
K
K
ZD1
*HZM
6.
2M
W
A
TR
-E
3
1
2
A
K
K
ZD2
*HZM
6.
2M
W
A
TR
-E
3
1
2
A
K
K
ZD3
*HZM
6.
2M
W
A
TR
-E
3
1
2
A
K
K
ZD4
*HZM
6.
2M
W
A
TR
-E
3
1
2
A
K
K
ZD5
*HZM
6.
2M
W
A
TR
-E
3
1
2
A
K
K
ZD6
*HZM
6.
2M
W
A
TR
-E
*C114
0.
1uF
_f
ilm
10x2 Box-Header(P=2.54mm)
R
198
10K
R
197
10K
R
196
10K
R
195
10K
R
194
10K
R
193
10K
R
192
10K
R
191
10K
(1)
CTS1#
RXD1
B_CTS1#
B_RXD1#
R149
10K
R150
10K
BKL_ON
Trouble shooting
- No display but backlight turns on
- - Replace LCD unit or Main board.
- Display OK, but backlight does not turn on.
Check voltage at point (2) on page 11.
DC +5V - - - Replace LCD unit.
DC 0V - - - Replace Main board.
- No display and no backlight.
Check voltage at point (1)
DC +5V - - - Replace LCD unit or Main board.
DC 0V - - - Check Power supply circuit. (P.11)
Service Manual
43
Summary of Contents for ECR8200
Page 1: ...Cash Register ECR 8200 8220 SWEDEN SERVICE MANUAL Code Y110930 6 Service Manual 1...
Page 37: ...3 3 M30842MC MICROCOMPUTER Refer to the specification attached Service Manual 37...
Page 38: ...Port Assignment for ECR8200 8220 SWEDEN M30842MC Service Manual 38...
Page 39: ...Service Manual 39...
Page 51: ...Service Manual 51...
Page 53: ...S RAM PIN Configuration Refer to the specification attached data sheet Service Manual 53...
Page 56: ...Service Manual 56...
Page 63: ...Service Manual 63...
Page 64: ...Service Manual 64...
Page 65: ...Service Manual 65...
Page 66: ...ECR8220 SWEDEN Service Manual 66...
Page 67: ...Service Manual 67...
Page 68: ...Service Manual 68...
Page 69: ...It means OK when no error occurs through the checkup Service Manual 69...
Page 70: ...FINISHED GOODS CHECK LIST ECR8200 SWEDEN Service Manual 70...
Page 71: ...Service Manual 71...
Page 72: ...Service Manual 72...
Page 73: ...Service Manual 73...
Page 74: ...ECR8220 SWEDEN Service Manual 74...
Page 75: ...Service Manual 75...
Page 76: ...Service Manual 76...
Page 77: ...Service Manual 77...
Page 86: ...17 It shows Up Load OK 18 Click Ver button Service Manual 86...
Page 109: ...ECR8200 SWEDEN 11 FIX SEMI SET TO BOTTOM CASE SEMI SET Service Manual 109...
Page 112: ...14 COPLETE AND FUNCTION TEST BATTERY ASSY UNIT WINDING REEL Service Manual 112...
Page 121: ...8 EXPLODED DIAGRAM ECR8200 SWEDEN Service Manual 121...