VW42L Help please, powers on with backlights, no menus

[dabone]

I'm working on a craigslist find, a VW42L with a 3642-0252-0150 Mainboard.

I bought it with the usual story told to me that it just quit working.

After I opened the tv, I could see that they had tried repairing the mainboard by replacing the 1117 regulators at u2, u7, u8, u9 and a 1718 at u33.

I checked the PSU model 0500-0507-0450 and found that it was bad, (no powering up when voltage applied to the pson pin)

So instead of fixing that PSU I ordered a 0500-0507-210 from ebay, and installed it.

Now the TV comes on, turns on the backlight, but no menus or anything on the screen. Power button turns the tv off and on.

On a visual inspection of the main board, I'm missing the surface mount component at l44, it's inline to the cpu on the board, and you can see where is was broken off.

Any suggestions of a replacement for that? Or could a bad eeprom be causing these symptoms.

(Also, does anyone have the eeprom image for this mainboard?)

[budm]

Re: VW42L Help please, powers on with backlights, no menus

Can we see what this 'l44' looks like?

[dabone]

Re: VW42L Help please, powers on with backlights, no menus

http://assets.shopjimmy.com/media/ca...0150-top_1.jpg

You can see it in this picture, it's located below the j7 connector.

[vinceroger69]

Re: VW42L Help please, powers on with backlights, no menus

My guess its a inductor but not sure of the value

[budm]

Re: VW42L Help please, powers on with backlights, no menus

It is inductor. So what dcv do you have at either ends? You can bypass it with jumper wire to see if the TV will function.