Vizio P50HDTV10A Sound No Pix

[capkid]

Re: Vizio P50HDTV10A Sound No Pix

I was referencing the EBR35959201 logic control board. Hmm, it sounds like you might have a dud with a bad panel.

[tom66]

Re: Vizio P50HDTV10A Sound No Pix

Bottom buffers aren't really low voltage, its around 60V for them. Side buffers are for panel scanning no data loading occurs through them.

[dfergy54]

Re: Vizio P50HDTV10A Sound No Pix

Just pulled the Bezel off and looked at every ribbon connectiom with a magnifier. It appears to be pristine no evidence of any shifting, cracks or cable breaks.

[tom66]

Re: Vizio P50HDTV10A Sound No Pix

Check the F/X tube -- glass blower point. Top left of panel from back. Should be a little bulge visible.

[dfergy54]

Re: Vizio P50HDTV10A Sound No Pix

Not sure what you mean by FX tube? Assuming display ?
Heres pix of upper back left, top.

[dfergy54]

Re: Vizio P50HDTV10A Sound No Pix

For reference.

[dfergy54]

Re: Vizio P50HDTV10A Sound No Pix

Ordered a main board , hope this will fix it.

[tom66]

Re: Vizio P50HDTV10A Sound No Pix

This is the F/X tube on the TL/BR bracket:
https://www.badcaps.net/forum/attach...4&d=1372967672

It looks broken to me?

I don't know what F/X stands for. LG call the plasma panel a "plasma tube".

[dfergy54]

Re: Vizio P50HDTV10A Sound No Pix

I,m not seeing what you are apparently.
But I am definitely no expert on these things.

I just fix them and give them to family and friends for what I have in them.
Of course they may get my older ones.

[dfergy54]

Re: Vizio P50HDTV10A Sound No Pix

I took a closer look , I was looking up and to the right at the glass plate.
I thought the round hole was just a locator for the display.
It,s possible, but with magnifiers on and feelling with my fingers I can,t find where it is physicaly broken.


Can,t swallow that the screen could be evacuated of all the gas but then still render the top line perfectly or seemingly perfect since I cant see the whole screen.

Like I say I,m pretty new at this stuff so I,m sure I,ll learn a lot of new things.

[robfowlr]

Re: Vizio P50HDTV10A Sound No Pix

i have the same TV with similar problem, tv stays on , no picture , no flicker. d3-d5 are on D2 off. it keeps burning R43 on the Y-sus board. its a 10 ohm 1 watt resistor. i replaced bad caps on powersupply and all the voltage points are good. could be a bad IPM on Ysus. could be TCON board. plasma's are a PIA. lcd are much funner.

[capkid]

Re: Vizio P50HDTV10A Sound No Pix

plasma's are a PIA. lcd are much funner.

By "funner" it sounds like you mean easier. I keep hearing this about plasmas vs LCDs. I think people are intimidated by the "complicated" voltage settings and the "myriad" of boards. I hated plasmas when I first started repairing TVs a few years ago, but I now find them to be much more enjoyable to work on than LCDs. Also, they usually have less screen failure issues than LCDs. I've had several LCDs where I spent time correcting internal faults, only to find out that the panel was bad after I got the TV up and running.

[tom66]

Re: Vizio P50HDTV10A Sound No Pix

I agree with capkid. Plasmas are easier, and especially so if you avoid these nightmare LG IPM based panels.

[capkid]

Re: Vizio P50HDTV10A Sound No Pix

I agree with capkid. Plasmas are easier, and especially so if you avoid these nightmare LG IPM based panels.

I like the IPM-based LGs, too. I'm a glutton for punishment

[robfowlr]

Re: Vizio P50HDTV10A Sound No Pix

would anyone have a schematic or parts list for the VP50HDTV10a , or info on the Control board Led's ? seems like this tv works fine but its not firing up the panel. bad control board could be the problem but it could be the Ysus or bottom buffers. , any help much appreciated , ROB

[tom66]

Re: Vizio P50HDTV10A Sound No Pix

Control board LEDs indicate panel temperature. Three lit is typical. All four lit is bad, any other value is usually OK.

[vinceroger69]

Re: Vizio P50HDTV10A Sound No Pix

would anyone have a schematic or parts list for the VP50HDTV10a , or info on the Control board Led's ? seems like this tv works fine but its not firing up the panel. bad control board could be the problem but it could be the Ysus or bottom buffers. , any help much appreciated , ROB

http://www.toms-service-manuals.com/...&Search=Submit

[dfergy54]

Re: Vizio P50HDTV10A Sound No Pix

Got a replacement EBR35959201 Control_256_Ch no joy, same problem.
Only getting the very top line of the screen. Back to the drawing board on this one.

[capkid]

Re: Vizio P50HDTV10A Sound No Pix

So, you've replaced the main board and logic board so far, correct?

[dfergy54]

Re: Vizio P50HDTV10A Sound No Pix

No just the logic the one between the inputs and the lower buffers and also drives the Ysus. Kind of like the tconn maybe on an lcd.