vizio tv sv470xvt 1a white screen

[MisterD]

Re: vizio tv sv470xvt 1a white screen

[QUOTE=MisterD;317532]I had one LCD TV I was working on that had a white screen only no picture with sound, I had to take a hair dryer and heat up the top area of the LCD Panel/Screen going all the way across it back and forth, that's where the 2 ribbon cables come out of the T-CON and go to the small narrow boards at the very top, after doing this I got vertical lines and then eventually a normal picture.

Also try slightly twisting the panel and see if your picture returns, sometimes bad tab bonds can cause a white screen and or vertical lines. be sure to make sure the ribbon cables are seated into their connectors properly.[/QUOTE

Have you tried any of this yet?

[dejesus]

Re: vizio tv sv470xvt 1a white screen

Sorry i didn't respond before but i was out of town. I did some testing with the page tom66 send me and i found that one of the resistant on the t-con were not working (L2) I put the original and i have the impression tha it may be good even went it does not show half of the screen like it use to do before. Went i open the left ribbon and close i i can see a 4 inch band going across with video but them it slowly go away. same thing happen with the rigth ribbon, Can it be that both ribbons are bad? I did apply some heat but nothing happen. Voltage is ok. Any idea what can i do next? I may try to get some ribbon and see what happen.What do you think?

[dejesus]

Re: vizio tv sv470xvt 1a white screen

iam going to try to get new ribbons to see if that help. Anyone know were?

[dejesus]

Re: vizio tv sv470xvt 1a white screen

do you know were I can get ribbon for this tv?

[dejesus]

Re: vizio tv sv470xvt 1a white screen

I never received an answer of were to get this ribbon.

[tom66]

Re: vizio tv sv470xvt 1a white screen

Is this the cable between t-con and LCD panel?

[dejesus]

Re: vizio tv sv470xvt 1a white screen

yes, the two white ribbons.

[tom66]

Re: vizio tv sv470xvt 1a white screen

Best bet is to ask any sellers of parts who have broken up this TV.

[dejesus]

Re: vizio tv sv470xvt 1a white screen

yeah, I been doing that on ebay, no luck. Thanks, I will keep trying. Will let you know what happen, oh! by the way, thank you for reply to my question.