RCA L32WD22 No back light power on voltage from logic board.

[Wingryder]

32 Inch LCD Amber Standby light.. goes green with power, times out after 30 sec. and flashes. No screen, no audio. 24, 15, 12 and 5 voltages are there on the supply. (however one thing..they are all there during standby. Thought that was strange.) Caps look good. Nothing wrong with supply.
Further testing showed no BL voltage, should be over 3 volts according to BudM.

Digging deeper and what a pain this backwards built tv is to work on, I find serious damage on the tuner/logic/main (I never know what to call this one)
Looks like someone plugged or unplugged a hdmi cable while set was on.

Not good as you can see from even my poor picture.
This of course is way above my skills to try to get this board going. So my question is what is the chance of damage being contained just on this board?

This is a 32 inch and older so might gamble 30.00 board on it but no more.
Thanks for looking.

[budm]

Re: RCA L32WD22 No back light power on voltage from logic board.

You will just need the new main board, at least the main does send the PS-ON to turn on the rest of the power supply so the damage was not that bad.
The surge probably came through the HDMI port.

[Wingryder]

Re: RCA L32WD22 No back light power on voltage from logic board.

Thank you for jumping in BudM. I will get one coming and see if all is good.
dm

[Wingryder]

Re: RCA L32WD22 No back light power on voltage from logic board.

Thanks BudM. Main board for under 30.00 and all is good.

[vinceroger69]

Re: RCA L32WD22 No back light power on voltage from logic board.

Thanks BudM. Main board for under 30.00 and all is good.

Thanks for posting the mainboard has fixed the set another set saved from the landfill too.