Vizio E371VA lightning surge - no pic or sound

[sumdumgai]

Re: Vizio E371VA lightning surge - no pic or sound

OK, thanks to all of you for your help. I'll try to find a replacement board. Just one mpre question, though. Is it for certain not the power supply?

[westom]

Re: Vizio E371VA lightning surge - no pic or sound

Is it for certain not the power supply?

Well, you did not give numbers to three digits. The 24 volt numbers need not be so accurate. But the 12 volt number had to be. Also other voltages much exist and were not reported. So no. Nobody can say with certainty. Each answer is only as useful as the facts (especially numbers) it is based upon.

[sumdumgai]

Re: Vizio E371VA lightning surge - no pic or sound

Having trouble finding the exact part. I found one on internet with
# 715G3715-M01-001-004K (CBPFTQACB5K04302), but I need
# 715G3715-M01-000-004K (CBPFTQACB5K00708).
That's close but I'm reluctant to use it. Any thoughts? Thanks.

[sumdumgai]

Re: Vizio E371VA lightning surge - no pic or sound

I'll do the readings again and give more precise answers. What other voltage readings can I take? Thanks.

[budm]

Re: Vizio E371VA lightning surge - no pic or sound

You already verify that you have main board problem because it is not sending the PS_ON, BL_ON to turn on the power supply, and you can force the power supply and the backlights to come on.
The 12VDC (not critical) is used for the audio power amplifiers for driving the speakers, beside, the main board has many LDO regulators to regulate the voltages needed for the main board.
When you look for the replacement board, you need to use the numbers as printed on the barcode sticker, it is the PCBA number, the white printing on the PCB is the P/N for the blank PCBwhich can be stuffed for a bunch of different TV chassis.

[sumdumgai]

Re: Vizio E371VA lightning surge - no pic or sound

Thanks, Bud. So I need a CBPFTQACB5K00708.

[budm]

Re: Vizio E371VA lightning surge - no pic or sound

http://www.shopjimmy.com/catalogsear...PFTQACB5K00708
not in stock though.

[sumdumgai]

Re: Vizio E371VA lightning surge - no pic or sound

Found a main board at premiertvparts.com. Installed it and TV works like new. Thanks to everyone for your help.

[tom66]

Re: Vizio E371VA lightning surge - no pic or sound

Glad to hear! Thanks for repair feedback.