Power Supply Section - LG 42LH90 Manual

POWER SUPPLY SECTION

POWER SUPPLY SECTION
This switch mode power supply develops Stand By 5V at
all times when AC is applied.
At power on, it develops 12V and 24V for the Main board
And 24V for the Inverter.
This power supply draws a little less that 1 watt during
stand by mode. The fuse F101 reads 159.9V
(from hot ground) during this time.
When the controller chip (IC501) receives the PWR-ON
command via P201 Pin 19, the primary section increases
its current supplying ability.
The Primary fuse F101 now reads 390V.
P201 Connector: (To Main Board)
12V is routed out P201 pins 5 and 6 and
24V is routed out P201 pins 1 and 2.
P203 Connector: (To Inverter Board)
24V is routed out P203 pins 1 through 5.
31 February 2010 LCD DV 42LH90