3-12. BATTERY CIRCUIT
VBB voltage is used by CPU, external RAM and FROM.
It is supplied by dry battery at the time of back-up.
Battery specification
Type
:
AA
x
3pcs
Voltage
:
4.5V
CAUTION;
RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECT TYPE.
DISPOSE OF USED BATTERIES ACCORDING TO THE INSTRUCTIONS.
1
2
CN13
B2B-XH-A
CE
1
VSS
2
VOUT
3
VIN
4
U13
XC6215
C140
1uF
C28
0.1uF
VBB
B
E
C
Q14
2SC2412K
R201
*10K
R205
750
R204
62
R203
39
A
K
D18
1SS355
A
K
D17
1SS355
A
K
D16
1SS355
VCC3
A
K
D
14
*E
C
31Q
S
06
A
K
D
19
*R
B
520
S
-30
R202
0
VBB
R200
10K
(1)
Trouble shooting
- Check whether the batteries are supplied in the battery box.
- Check the voltage of each battery. (It should be over 1.1V per battery.)
It outputs less than 1.1V per battery (less than 3.3V with 3 batteries) - - - Replace the battery.
It outputs over 1.1V per battery (over 3.3V with 3 batteries). - - - Check the voltage at point (1).
- Check the voltage at point (1)
It outputs almost same voltage as battery voltage - - - Replace Main Board.
It outputs much less than the battery voltage or 0V - - - Replace Battery unit.
Service Manual
50
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...