Sound no picture.. Viewpia LC-32IEFA

[Andyd1970]

Hi Guys,

I have a Viewpia LC-32IEFA with sound and no picture, I seem to recall Tom, mentioning in a thread before about test points on the TCon, that will determine if the TCon is at fault?

Attached is a pic of the TCon.

Thank you.

[flocko]

Re: Sound no picture.. Viewpia LC-32IEFA

You could start by checking the two fuses marked P on the bottom ? Flocko

[Andyd1970]

Re: Sound no picture.. Viewpia LC-32IEFA

Hi,

The two fuses CP101 and CP102 are not open circuit.

[flocko]

Re: Sound no picture.. Viewpia LC-32IEFA

what voltage are you seeing to the board at the fuses

[Andyd1970]

Re: Sound no picture.. Viewpia LC-32IEFA

Around 4.8-4.9v on both sides of both fuses

[flocko]

Re: Sound no picture.. Viewpia LC-32IEFA

I have never seen this make of set, but would think 5v could be about right. but some run at 12v, my next thing would be to check voltage regulators on main board (who is the main board made by )? also look for SMD fuses on there as well. not much help I know but this could be a challenge Flocko

[budm]

Re: Sound no picture.. Viewpia LC-32IEFA

It uses SAMSUNG/SONY panel.
Have one white ribbon between the T-CON and the LCD panel connected one at a time to se what you get on the screen.
There are also Voltage test points on the board that you can test, for example to the right of the board you can see VDD_2.5, etc.