3" black line in middle of sanyo plasma tv

[dandan62]

i have a sanyo dp50747 with a 3"inch black line on the right side and a 1/4" snowy line in the black line goes from the top to the bottom i want to repair any ideas of what it might be
thanks

[rayrod81]

Re: 3" black line in middle of sanyo plasma tv

Most likely not repairable as the IC that controls the addressing is bonded to the ribbon that connects the lower buffers to the panel. This ribbon is built in to the panel and not repairable without specialized equipment.

[dandan62]

Re: 3" black line in middle of sanyo plasma tv

ok is there any other thing it could be just to try and see if i can get it working

[dandan62]

Re: 3" black line in middle of sanyo plasma tv

where abouts can i order the part for this tv

[PlainBill]

Re: 3" black line in middle of sanyo plasma tv

where abouts can i order the part for this tv

Look at the back of the plasma panel for a part number. Google it.

PlainBill

[dandan62]

Re: 3" black line in middle of sanyo plasma tv

ok do you know what whould cause this and would it be able to be fixed with the tools needed even if the ribbon is boned and is the board that is on it now fixable in any way

[tom66]

Re: 3" black line in middle of sanyo plasma tv

Sometimes the X buffer board goes out, but in most cases it is the panel. The panel is 50-75% of the price of a new TV, so it's often not worth it.

[PlainBill]

Re: 3" black line in middle of sanyo plasma tv

ok do you know what whould cause this and would it be able to be fixed with the tools needed even if the ribbon is boned and is the board that is on it now fixable in any way

Here is what I understand based on accounts from the experts. The X driver ICs are electrically bonded to the flex conductor using a non-solder process; they are in thermal contact with the heat sinks at the bottom of the panel. Sometimes a driver IC will fail, sometimes the bond will fail. No one has reported successfully replacing a driver or repairing a failed bond. The have reported that attempting to remove or resolder the driver results in destroying the flex conductor.

Now, it is (for the most part) a free world. You are welcome to research the problem, attempt to replace the IC, or jury-rig an alternative solution. The Electronics Repair field is full of successful repairs of non-repairable items, but in this case I can't offer any encouragement. I don't know where you would buy the ICs, the material used to bond them, the material which can unbond them, or even where to look.

I note that the TV is at least two years old, and has a typical 1365 x 768 (720P) resolution; at 460 watts it's also a power hungry beast. The current version is available at Walmart for less than half of what you paid for this one, but I don't recommend it. You probably won't even have to wait until Black Friday to get a 55" 1080P LCD TV for under $700.

PlainBill

[rayrod81]

Re: 3" black line in middle of sanyo plasma tv

You can try to replace the bottom buffer and see if you get lucky as they are inexpensive. In the end you will most likely need a whole new panel. For this TV you can probably find a replacement screen for $300-$400 after all is said and done. Considering you can buy a name brand (Samsung, LG, or Panasonic) plasma 720p 50" plasma for $650 it is probably not worth the repair. You could even go for the cheap Walmart brands (Sanyo, Element, RCA, or Viore) and get into the $500 neighborhood but I wouldn't recommend it.