3. CIRCUITRY
3-1 POWER SUPPLY CIRCUIT
+VDRW
+VDRW is generated using the AC input across pins 3 of CN12. This AC voltage is rectified by D15,
a 1SR154 diode. The resulting DC voltage is about +24V. This voltage is used by the drawer
solenoid and the buzzer.
VCC5
VCC5 is generated using the 13V AC input across pins 1 and 2 of CN12. This AC voltage is rectified
by the RS402 bridge rectifier and filtered by EC14 a 15000uF capacitor.
The resulting DC voltage is about +12V. It is supplied to the input of U9, a M5291 comparator and
then it o5V.
VCC3, VBB
VCC3 and VBB are generated using the VCC5. VCC5 is supplied to the input of U15, a
BA00CC0WFP regulator and then it outputs about 3.6V.
After 3.6V passes through D12, it becomes 3.3V as VCC3.
After 3.6V passes through D13, it becomes 3.3V as VBB.
VPRN
VPRN the printer motor voltage is generated using the 13V AC input across pins 1 and 2 of CN12.
This AC voltage is rectified by the RS402 bridge rectifier and filtered by EC14 a 15000uF capacitor.
The resulting DC voltage is about +12V. It is supplied to the collector of Q10, a 2SD1415 transistor.
This base voltage is controlled by ZD7. This emitter voltage is about +7.6V.
-VPW
The –VPW circuit uses 26.5V AC across pins 4 and 5 of CN12.
This AC voltage is rectified by D4, a 1SR154 diode and filtered by EC13.
The resulting DC voltage is about -30V. It is supplied to the collector of Q12, a 2SA1284D transistor,
and base voltage is controlled by ZD8.
-VPW is approximately -28V DC. This voltage is used by the display.
VF
The filament voltage, VF1, VF2 are used by the display tube.
Its AC input is 4.3V, and uses a ground reference -23V from the -28V circuit dropped across ZD9
and R181, R182, a 470 ohm resistor.
Fuse for Secondary side.
F1 250V 1.6A
TR-5 19370 1.6A
F2 250V 3.15A
MRT3.15A
F3 250V 1.6A
TR-5 19370 1.6A
F4 250V 1A
TR-5 19370 1A
F5 250V 500mA
TR-5 19370 0.5A
Service Manual
34
Содержание ECR8200
Страница 1: ...Cash Register ECR 8200 8220 SWEDEN SERVICE MANUAL Code Y110930 6 Service Manual 1...
Страница 37: ...3 3 M30842MC MICROCOMPUTER Refer to the specification attached Service Manual 37...
Страница 38: ...Port Assignment for ECR8200 8220 SWEDEN M30842MC Service Manual 38...
Страница 39: ...Service Manual 39...
Страница 51: ...Service Manual 51...
Страница 53: ...S RAM PIN Configuration Refer to the specification attached data sheet Service Manual 53...
Страница 56: ...Service Manual 56...
Страница 58: ...Motor and Thermal Head drive timing Figure 3 14 2 2 Division Printing Timing Chart Service Manual 58...
Страница 63: ...Service Manual 63...
Страница 64: ...Service Manual 64...
Страница 65: ...Service Manual 65...
Страница 66: ...ECR8220 SWEDEN Service Manual 66...
Страница 67: ...Service Manual 67...
Страница 68: ...Service Manual 68...
Страница 69: ...It means OK when no error occurs through the checkup Service Manual 69...
Страница 70: ...FINISHED GOODS CHECK LIST ECR8200 SWEDEN Service Manual 70...
Страница 71: ...Service Manual 71...
Страница 72: ...Service Manual 72...
Страница 73: ...Service Manual 73...
Страница 74: ...ECR8220 SWEDEN Service Manual 74...
Страница 75: ...Service Manual 75...
Страница 76: ...Service Manual 76...
Страница 77: ...Service Manual 77...
Страница 86: ...17 It shows Up Load OK 18 Click Ver button Service Manual 86...
Страница 103: ...3 FIX TRANSFORMER UNIT TO DRAWER UNIT BY FASTENING 2PCS SCREW AC CORD SLOT HERE SCREW Service Manual 103...
Страница 109: ...ECR8200 SWEDEN 11 FIX SEMI SET TO BOTTOM CASE SEMI SET Service Manual 109...
Страница 112: ...14 COPLETE AND FUNCTION TEST BATTERY ASSY UNIT WINDING REEL Service Manual 112...
Страница 121: ...8 EXPLODED DIAGRAM ECR8200 SWEDEN Service Manual 121...
Страница 122: ...97 ECR8220 SWEDEN Service Manual 122...