Facing TV Problems? Ask a TV Technician.
Hi, What's the model number off of the back of the set?
Okay, so this is a Philips not a Sharp then??
That model number is ***** Philips- not a Sharp. Check again.
Thank you. That clicking from the power board can be caused by several things. I need to know if the clicking occurs as soon as the set is plugged in or only after the power button is pressed?
Thanks for the reply. This is a mainboard failure on the set- since it provides the turn on command to the power supply. The clicking is the relay on the power supply board cycling due to a faulty turn on command. You would need to replace the mainboard to fix this issue in most cases. Have you measured the standby voltage to the mainboard or any voltage OTHER than the 20 volt output?
The fuse is not where you check- if the fuse were bad there would be no light, no clicking- nothing at all.
Check connector CN1803 for your 3.3 and 12 volt DC outputs using your multi-meter please and tell me which ones are present (if either).
It's literally labeled CN1803 on the power supply board.
Top center of the board in the picture below:
Thanks for the reply. How about the 12 volt pin on that same connector please?
Those voltages are present soon as the power cord is plugged in or only after you press the power button?
And the power board is still clicking while you're testing for these voltages?
I'm sorry, but I will need to opt out of the question at this point. It is now open for other experts to view and assist.