Daewoo Colour Television WP-895 - Manual (Page 66)

- 65 -
Service manual WP 895/895F, CP885/885F
2 4
3
D R A I N
I801
MOFSE T A N D
CONTROL IC
1
MAIN AC VOLTAGE
I804
OPTO
COUPLER
I823 3.3V
R E G U L A T O R
I703 IR
R E C E I V E R
F R O N T
M A SK
B U T T O N S
I810
C O N T R O L L E D
R E C T I F I E R
SW I T C H I N G
C I R C U I T
T801 SM PS TRA N S
I501
M A I N
IC
OCP
FB
D801...D804
GRAETZ BRIDGE
16
D821
I810
controlled rectifier
HIGH
C841
C840
R713
1 3
1 2
61
64
56
54
7
63
CONDUCTING
I R I N
µ com
supply
voltage
K E Y I N
POWER
R888
C888 Q809
Q810
Q811
D811
D825
R810
L801
D806
C808
SW801
POWER SWITCH
C850
R806
8
4
3
1
2
R870
HIGH
LOW
LOW
CONDUCTING
CONDUCTING
AROUND
6V dc AROUND
3.3Vdc
Fig : Power supply operation in stand - by mode