vizio E320-A1 not working

[lolaeng]

Re: vizio E320-A1 not working

Thanks, budm. Finding somebody to replace the bum part is not a problem. IDing the bum part is my goal. Indeed, the kit appears to address the needed fix but I still want to ID the bum IC. Looking at the voltages I found in my tests it looks to my untrained eyes that eeprom U705 may be the bum IC. Can anybody confirm?

[budm]

Re: vizio E320-A1 not working

U705 as shown in your pictures with numbers you provided: 0182 G5676.
I do not know what it is so I Google '0182 G5676' for information and it shows as step down converter. NOT EEPROM.
SHOPJIMMY website indicated IC U409 as the EEPROM, no P/N as printed on the top of the IC is provided so I cannot look up the spec sheet to find out more about that EEPROM.
https://www.google.com/search?q=0182...#q='0182+G5676'
The first result shows:
https://cdn.badcaps-static.com/pdfs/...80f52a718c.pdf

Your report shows the output reading of 1.2V which sounds about right, but the only way to be sure is to look at the resistors connected to the OUTPUT and the FEEDBACK pin to determine what the Output Voltage should be.
So to get that deep in checking U705, it will be beyond your capability, I would leave it as is.

[budm]

Re: vizio E320-A1 not working

Is there any feedback in this repair?

[lolaeng]

Re: vizio E320-A1 not working

No, not yet. I still need to learn about how to ID the bum part. Why? Because I just might want to learn how to do it myself. I'm thinking shopjimmy does not provide until AFTER the sale the P/Ns of the 4 ICs it sells because those ICs could be purchased elsewhere for pennies. If can can ID which ICs don't work then I'd have more leverage with a repair shop where, rather than blindly asking that they find and fix it, I tell them exactly what I need done. I know this is a simple problem with a simple fix. I just want to uncover it all.

[lolaeng]

Re: vizio E320-A1 not working

I've received the repair kit from shopjimmy.com with 4 caps in it. Because sj.com would not offer before purchase the caps to be replaced nor the PNs of the caps to be used for the replacement, I'm offering that info for the next person needing help. I've noted each in the photo I will upload. I've ID'ed the caps to be replaced along with the PNs of the replacement caps in red except the cap to replace U409 is in purple as it is quite lengthy. For the record they are:
U705: 0272 G5676,
U409: MXIC MX 25L6445E M2I-10G 3T862100 L16755,
and Q104 & Q702: 4449 BV9T11
I am now out to find somebody to do the labor. Any clues on where to search would be helpful.
Thanks all.

[BigDave]

Re: vizio E320-A1 not working

I had similar power readings from my power supply,
replaced the EEPROM and it works now !

Thanks everyone for the tips, saved me from having to buy a new TV.

Watch some videos on removing the SMD EEPROM FIRST before you try to do it -- I spent 15 minutes removing one leg at a time, bending it all up and out of shape.
Later, after watching some videos, it could have been removed less than 2 minutes, super clean and like new.

OH, two comments for everyone else that tries to do this:
The EEPROM location....
When everyone says that it is "under the metal plate" it means:

THE BIG METAL RECTANGLE ON THE MAIN BOARD.

NOT the 3 metal plates at the bottom (below the circuit boards)
and DEFINITELY NOT the big metal housing covering the LED PANEL.

Kinda hard to remove, but not impossible - there's 4 locations where little legs come down from the plate itself. Mine got bent out of shape, but once it was fully removed, it was simple to "bend it flat again" (mostly flat !)

Good luck every one !