Copyright©2007 LG Electronics. Inc. All right reserved.
-28-
LGE Internal Use Only
Only for training and service purposes
AC IN
100~240V
LINE
FILTER
MAIN
CONTROL
(IC802)
PSU
PWR ON/OFF
(Q803)
STAND-BY
CONTROL
(IC900)
OPTO
COUPLER
(IC807)
ACTIVE HIGH
+24V/4.5A
+12V/2.5A
ST +12V/1.25A
ST +5V/0.1A
PWR-CTL
A+12V/2.0A
STAND-BY
TRANS
(T901)
MAIN
TRANS
(T801)
RECTIFIER
(SCHOTTKY)
RECTIFIER
(SCHOTTKY)
5V REGULATOR
(U201)
FEED
BACK
(IC804)
FEED
BACK
(IC902)
BRIDGE
(BD801)
PFC
(IC801)
DC +400V
•
POWER SUPPLY