Question about Akai PT4298HD Rear Projection Television

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Aaki 42" red line

That info. was great and worked except for the red line I figured thats what you meant mute 1-8-3, I get 83% on perfect picture is that good enough or will 100 get rid of the line thanks again code-r-1

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  • the_kane89 Jan 17, 2009

    what can i do to fix this the red line is wavy on the vertical portion of the perfect focus

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I only gave you the info I had on hand I dont have the tech manual, you might find one on line for proper setings in this tech mode.

Posted on Jan 13, 2009

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Black and white picture with red lines vibrating with sound.


More info would be nice. Are you using HDMI or Component cables. If it is component cables (red, blue, green for video white and red for audio) Check your red and blue connection. Green alone will give you a black and white picture.
If you are using an HDMI cable, replace the cable to see if this changes anything or if you have another tv swap cables to see if problem stays with tv or moves to another tv.

Feb 08, 2013 | Hitachi 46F500 46" Rear Projection...

1 Answer

My set has a RED background on all Inputs--DVD,Sat, Recorded DVR.....when playing a DVD a Bright Blue FBI screen is normal and the Bright Green Movie Rating Screen is Normal but the picture is RED....


I found a way to get into the service set-up....press Display, 5 ,volume + and Power.....green numbers come up---could figure out how to go to a Menu-----but somehow the picture is now perfect !

Anybody know why this fixed it......as I said the RED background was on all input screens....the screen with no signal was a solid red instead of Black......

bob

Jun 19, 2009 | Sony Grand WEGA KDF-42WE655 42" Rear...

1 Answer

Green & Blue Ghosting Convergance problem


Odds are real good that the cooling fluid in the green and blue picture tube assemblies has become contaminated. You can tell by looking down into the lenses with a flash light. Funny thing is the red never gets contaminated because whatever organism is causing the problem can't survive in red light. BTW this may still not solve all of your convergence problems but when the colors are so badly diffused the convergence sensors for flash focus can't lock onto the beam landing.

Jun 01, 2009 | Samsung HCL473W 47" Rear Projection...

1 Answer

Screen Out of Focus with Wavy Lines - Perfect Focus Will Not Corr


This is a common problem. Its called a convergence failure.

Problem #1) Convergence

Symptoms:

  • Screen Looks 3D
  • Colors wont align
  • Video may look distorted
Problem #2 CRT Fluid has clouded over. Symtoms
  • Dull looking video
  • White looking video
  • Halos around objects
  • Red/Orange looking video

You can see some examples and find a fix here...

bb0cf99.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Mar 06, 2009 | Samsung HCM4215W 42" Rear Projection...

1 Answer

How do i realine the bulb in my samsung rear projection tv


use you're remote to enter code mute 183 while tv is on then press 7 for red 8 for green and 9 for blue control. arrows or knobbie will move cursor. if you still can not control the red you will need to change the red convergence ic...press perfect focus to save changes if pf is not on remote maybe on tv if neither you will need to get a remote that has it to save info.

Jan 27, 2009 | Samsung HCM4215W 42" Rear Projection...

1 Answer

Kp-57hw40 screen goes bright red or green then powers off


http://esupport.sony.com/perl/news-item.pl?news_id=24
heres a recall of sony hope it helps.

Dec 18, 2007 | Sony KP-57HW40 57" Rear Projection...

1 Answer

Perfect Focus Not Working- Picture is Blurred


· Samsung parts for convergance problem
· http://www.partstore.com/Part/Samsung/Samsung/BP9500142E/New.aspx

Nov 11, 2007 | Samsung HCN4226W 42" Rear Projection...

1 Answer

MY Samsung HCN4226W have perfect sound but no picture


I had the same experience with my set. I noticed there were 2 new cables attached to the new board and looking carefully noticed the connectors were different from the old. The new connector fit perfectly into the new board but wasnt the same as the old. I replaced the old cable with the new and the TV remained bad. I then flipped the connector to the main circuit board (bottom left) and the new board worked fine. I know nothing about Tv repair, but this new cable seems to be a universal connector in which the contacts are open on 2 sides...allowing them to be flipped if necessary. Now if I could get that solid line out of the display I'd be set!

Nov 05, 2006 | Samsung HCN4226W 42" Rear Projection...

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