Daewoo DWC-121R Service Manual page 22

Power Supply(1)
AC 220V
DESCRIPTION
DC Power Supply in circuit needs +12V and +5V. +12V is used for Compressor Driving Relay, Fan Motor
Driving Relay, Buzzer Driving, Swing Motor Driving Relay and LED Display. AC voltage of secondary Power
Transformer is rectified by 4 Diode, and it is filtering by Main Condensor C2.
Filtered DC voltage is about +17V is regulated +12V DC by Regulator IC7812.
And it is regulated +5V DC by Regulator IC7805.
VAR1 is surge filter and C4, C6 is Noise filter.
C1
335
VAR1
POWER
TRANS
3
+
C6 C7
0.1 100/16V
1
7805
2
+
C4 C5
0.1 470/25V
21
+
C2
2200/35V
3 1
7812
2
C3
104