Philips MC-500 Service Manual page 30

8-1
MAINS BOARD
TABLE OF CONTENTS
Brief introduction .............................................................. 8-1
Mains Socket - Circuit diagram & Component layout ..... 8-1
Mains Board - Component layout .................................... 8-2
Mains Board - Chip layout ............................................... 8-3
Mains Board - Circuit diagram ......................................... 8-4
Electrical parts list ............................................................ 8-5
Brief introduction of the Mains Board
ECO Power
Standby Transformer 5203 provides the LPS supply to control the relay 1210, cutting of the Mains supply to the Mains transformer
during the ECO Power (standby) mode.
The Mains transformer provides the following:
- 5V6_ECO for Low Power Supply
- +A, +A/2 and +B to the Combi board
MAINS SOCKET - CIRCUIT DIAGRAM & COMPONENT LAYOUT
This assembly drawing shows a summary of all possible versions.
For components used in a specific version see schematic diagram and respective parts list.
1204 A1 1220 A2 1221 A2
1
Note : Some values may varies, see respective parts list for correct value.
1204
2
A
1
1
8-1
3139 113 3478 pt3 dd wk0247
5220 A1 9250 A1 9251 A1
2
9251
5220
1221
1
A
1220
1
9250
3139 118 55880...8239 210 91653 for...3478 pt3 dd wk0247
2