Vizio E320VA shows logo then black screen

[KGJC616]

So basically the TV turns on shows the Vizio boot logo for a couple of seconds then goes to black screen. The indicator like is still lit up showing the TV is on. I can turn the TV off with the power button and the light indicator light goes dim.

I can then repeat TV boot logo comes up and then couple seconds back to black screen.

I have a blue LED that comes on, on the T-Con board with logo and backlights working then when logo disapears the backlights turn off and the blue LED does as well.

I was told the sound was starting to go out on the TV as well before it went completely out like this. Was also told that sometimes they could get it to work sometimes but they had to power cycle the TV a lot, and it would also turn itself off randomly usually around 10mins of use.

This TV was given to me so I'm not at any kind of a loss, any help would be greatly appreciated thanks.

[budm]

Re: Vizio E320VA shows logo then black screen

http://www.shopjimmy.com/catalogsear...q=Vizio+E320VA

You may want to look into the EEPROM or the repair kit for the main board.

[KGJC616]

Re: Vizio E320VA shows logo then black screen

Thanks budm, Any Idea which repair kit I should be getting? lol

Top Board # 715G3715-M01-000-004K

Sticker #'s

(T)TQACB 5K00208 TOP:A MB:A V2.23

Also Which one is the EEPROM?

[KGJC616]

Re: Vizio E320VA shows logo then black screen

Okay I found the eeprom and the audio chip

rom: U418
audo: U602

Now just need a little help figuring out which one I need to order.
Thanks

[nomoresonys]

Re: Vizio E320VA shows logo then black screen

What is your FULL model number of tv or the whole number on the little white sticker on your mainboard?

[KGJC616]

Re: Vizio E320VA shows logo then black screen

Main Board small right sticker
#
(T)TQACCB 6K00208 - First Image


Second Image I think is the T-con board driver

Third Image Sticker on back of TV

[KGJC616]

Re: Vizio E320VA shows logo then black screen

Okay I got the part figured out, now to just wait for it to get here.

http://www.shopjimmy.com/vizio-cbpft...for-e320va.htm

[nomoresonys]

Re: Vizio E320VA shows logo then black screen

Ok, yes it matches up with the first part of your serial number.

[KGJC616]

Re: Vizio E320VA shows logo then black screen

Okay Should be final Question lol. I got my new chips today and the audio chip "U602" has a metal plate on the under side of the chip. does this mean that it is soldered underneath the chip?

I'm leery to try and remove this chip since I'm not sure, and all I have is a soldering iron and not sure how to desolder this. Also how I would go about soldering it back to the board. If I get it removed

[KGJC616]

Re: Vizio E320VA shows logo then black screen

Okay well I got the new EEPROM soldered in and it's still doing the same problem. everything lights up shows logo, then back to black screen.

[nomoresonys]

Re: Vizio E320VA shows logo then black screen

Could be a separate issue with the mainboard. Usual place to start troubleshooting unless you have a real good idea is the powersupply voltages. Look at the second video in my signature, HEED THE DEADLY VOLTAGE WARNING.

[nomoresonys]

Re: Vizio E320VA shows logo then black screen

https://www.youtube.com/watch?v=mUvclBfaMXg

[nwcs]

Re: Vizio E320VA shows logo then black screen

I would check the LED's. If you turn the tv on and press the menu button then hold a flashlight up to the screen and see if you have the menu showing.

[nwcs]

Re: Vizio E320VA shows logo then black screen

Never mind. I did not see the picture with the led's lit up

[budm]

Re: Vizio E320VA shows logo then black screen

"I was told the sound was starting to go out on the TV as well before it went completely out like this. Was also told that sometimes they could get it to work sometimes but they had to power cycle the TV a lot, and it would also turn itself off randomly usually around 10mins of use."
I am beginning to think if that statement from the old owner is true or not because I do not expect bad LEDs to cause those issues as stated by original owner, that sounds more like main board problem that is why I suggested to look into EEPROM.

[nomoresonys]

Re: Vizio E320VA shows logo then black screen

https://www.youtube.com/watch?v=AclsDZ8glK4

[nomoresonys]

Re: Vizio E320VA shows logo then black screen

Check your solder work over and check for bad solder joints all over and underside of mainboard.

[nomoresonys]

Re: Vizio E320VA shows logo then black screen

Get the hair dryer out and heat up the mainboard, see if anything changes, if it does you're closing in on the faulty area.

[nomoresonys]

Re: Vizio E320VA shows logo then black screen

So it's 2 seconds to black, could be a backlight issue.

[nomoresonys]

Re: Vizio E320VA shows logo then black screen

Do the testing in video post #16, do it just like he does it and do the flashlight test in post 13. There's a tcon test you can do too.