Repair Flow Chart - Philips 150P4CG Service Manual

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Block Diagram
12V DC
620Vrms
Fluorescent
LCD panel
Lamp
No Raster
Check
No
Powe + inverter
board12V/3.3V/ DC
Yes
Check
No
video signals input
interface
Yes
Check
OK
Power+Inverter panel
620VAC with load
No
Replace main panel
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Repair Flow Chart

AC IN
Power supply +inverter
board
3.3V/12VDC
Main panel
Power+ inverter Board
Bad AC adapter
Video source
Replace fluorescent
lamp
No power
(power indicator off)
No
Check
12V/3.3V DC
Yes
Replace Main panel
Front control key
does not work
Front control panel
Signal connectors
Replace main panel
33
150P4 LCD
Go to cover page
Power supply +
inverter board
Check
(Key & SW)
Yes
Check
1712, 1503
Yes