Question about Akai PT4298HD Rear Projection Television

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Top half of screen looks like 3D

Turned on the tv this morning and only the top half of the screen looks like 3D. The bottom half is okay. On a black screen there is a big green line dipping from the top about four inches at its widest point. Our manual does not address this. Tried Perfect Focus and it does not show any progress. Tried the Convergence and no luck.

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The prob. described points to convergence amp failure. have qualified tv tech to repair..john

Posted on Sep 12, 2007

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Posted on Jan 02, 2017

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1 Answer

I have the top half of a screen the Bottom half is black,how do I fix this?


If the problem is same with different input devices and you have ensured the are no loose contacts in power outlet, RC jack, cable and sockets, the TV needs servicing.

Aug 21, 2012 | Sanyo DP50749 50 in. Plasma TV

1 Answer

After awhile my t.v. has been on, half the screen will go black. How do i fix this??


May I know what portion on the screen turned to black, is it top half, bottom half, left/right side. Also please confirm if your TV's model no. is 50PQ30C, it is printed at the rear panel, manual, and receipt.

Dec 15, 2011 | LG 50PQ30C 50 in. Plasma TV

1 Answer

I have a Samsung DLP HLN 5065W and recently the TV started to get Horizontal Lines in it with a 2 inch black horizontal line across the TV and the bottom half you could see the picture and the top half...


If your TV looks 3D, warped, or distorted it likely has a convergenge problem.
If however it just looks dull, washed out, redish, greenish, or blueish or if it looks like objects on the screen have halos the fluid in the lens has soured.
You can search google for parts or you can get the parts with repair instructions from sites such as www.TvRepairKits.com

Feb 27, 2011 | Samsung HL-R6168W 61" HDTV

1 Answer

I have a tz61v61 toshiba rear projection. The bottom half of the screeen is ghosting red, blue and green. it looks like 3d without the glasses. top half of screen is fine.


If your TV looks 3D, warped, or distorted it likely has a convergenge problem.
If however it just looks dull, washed out, redish, or if it looks like objects on the screen have halos the fluid in the lens has soured.
You can search google for parts or you can get the parts with repair instructions from sites such as www.TvRepairKits.com

Feb 24, 2011 | Toshiba TZ61V61 61" Rear Projection...

1 Answer

Picture looks like 3D without 3D glasses on???


The cost I don't know, but this can be fixed. I'd say shop around a bit. Make sure the repair person is certified for your TV's manufacturer. There are generally 3 lamps in projection T.V.'s, Red, Green, and Blue. They have to be aligned for the TV to project a clear picture. A credible TV repairman should be able to fix it. Depending on if it's new enough to be under warranty they may cover it as well. Really the only reason to get rid of it is if you want to get a new TV anyway. Depends on the cost of having the lamps aligned.

Dec 30, 2008 | RCA HD52W59 HDTV Projection Television

1 Answer

Model 42mf231d/17 42" plasma


If the loss of picture is either on top half or bottom half of screen. there are y buffer boards that go from top to bottom on left side of screen when looking at back that control those sections. when there is loss of half of picture then buffer associated with that area would be at fault and would need to be replaced. when i see a degrading symptom such as loss of picture on top half or bottom half leading to no picture issue normally you would check heat syncs on y sustain board and if not heating up after a few minutes of being turned on would recommend replacing y main and both y upper and lower y buffer boards as they complete a circuit

Jun 04, 2008 | Philips Magnavox 27MS343S 27" TV

1 Answer

Looks like watching 3D movie(colors) and rounded


This is a convergence problem and is either bad connections on the convergence ICs or defective ICs. If you feel that you can solder, you should be able to repair this yourself. First try resoldering the pins on the convergence ICs. If that fails, replace the ICs. These ICs are large black ICs attached to a heatsink and should be marked STKxxx.
Keep us posted.
Dan

May 13, 2008 | Toshiba 57HDX82 57" Rear Projection HDTV

2 Answers

2005 phillips crt 27 inch tv


need electrolytic capacitor replaced in vertical circuit

May 07, 2008 | Televison & Video

1 Answer

Fault on TV


something fried .. sounds like the vertical has gone ,
call a tech.

Mar 07, 2008 | Televison & Video

1 Answer

I have a Mitsubishi VS-60.. With a Picture


Vertical IC outputs , vertical Capacitors are most like the culprit on your deflection panel. good luck

Aug 16, 2007 | Mitsubishi VS-50501 50" Rear Projection...

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