Vizio E47OVA Turns off at random

[landyboy]

I know Vizio is not the best brand but I got this almost free. The previous owner told me that sometimes it turns off in 3 hours and sometimes in 30 mins. Or any time in between. I'm going to disassemble an start troubleshooting but looking for any thoughts on what it could be. I will post pics soon.

[landyboy]

Re: Vizio E47OVA Turns off at random

Caps?

[Pentium4]

Re: Vizio E47OVA Turns off at random

Technically it could be caps but not that likely. I know Vizio's have tons of other issues and usually use decent caps at least on the power board

[baitism]

Re: Vizio E47OVA Turns off at random

EEPROM on the main board possibly.

[landyboy]

Re: Vizio E47OVA Turns off at random

Can the EEPROM be replaced. I turned it in last night and worked for several hours until I shut it down.

[aaronwt6]

Re: Vizio E47OVA Turns off at random

Yes, but you need some decent soldering skills and preferably a hot air rework station. The chip is quite small. I just worked on this exact same TV and after replacing the eeprom and no change in the problem, I replaced the control board. Be very careful in selecting exactly the same board with a perfect match on all of the numbers on the large white sticker. There are several models that use that same board. It took me 2 tries to get it right.

[nandovega]

Re: Vizio E47OVA Turns off at random

I have an E47OVA and I am looking for a main board my part #TQACB5K05602 are their any other compatible boards that will work. What other models use this board?