Question about Akai PT4298HD Rear Projection Television

1 Answer

Seeing double image in three colors

Tv worked a couple of hours ago and now I turned it on and I'm seeing a double image with red, blue and green colors. I tried to adjust the convergence, but that was unsuccessful. Is this a problem that is fixable and if so, can I do it or do I need a technician?

Posted by on

  • Brianut Sep 04, 2007

    Does anyone know what this might cost to have it up and working correctly? Or at least a round about estimate? Thanks.

  • 4Nana2 Jun 10, 2008

    Hi I have an akai 54 in rear projection. Was watching it and cut it off . The next day I turned it on and it was showing in three D. Tech Guy came and looked at it and took out the conversion he said and I never seen or heard from him again. Now I 'm told that it has two conversion on it. And that the parts are not Akai they are Samsung. Akai model pt4298hd. So my question where can I find the parts( 2 conversions) And how much they cost? Can you help me and is it worth it now with flat screens. Thank you

×

Ad

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Scholar:

    An expert who has written 20 answers of more than 400 characters.

    Hot-Shot:

    An expert who has answered 20 questions.

  • Expert
  • 173 Answers

Its a convergence problem for sure ,,,if you cant move the red or blue (green is stationary) then your problem lies on the convervence module.. requiring ....mostly new output ICs like STKs your going to need a tech, for convergence is a common problem with rear projectors and requires patience and a expert to get it back just right. good luck

Posted on Sep 01, 2007

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Re: Toshiba 65 in Cinema Series - 12 years old. Color Separation. Green bow at top center of screen, red and blue double images tilting upwards toward sides. Sometimes clears unassisted after set has...


projection TV sets have two very common problems. One is convergence ( 3D/Warped video) the other is CRT fluid ( Dull Video). Here are more details and solutions for both.

Common Problem #1) Convergence has gone out

Projection TV sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the video to look normal. When its out of alignment the video will look 3D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the TV menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired.

This is a very common failure on these projection sets and a fairly simple DIY fix. All projection sets including Samsung, RCA, Sony, Philip Magnavox, Panasonic, Pioneer, Akai, GE, JVC, Toshiba, and others at some point will have the same problem.

Common Symptoms include....

  • Screen looks 3D
  • Colors don't line up
  • One or more colors can't be adjusted when using the convergence menu.
  • Screen is bowed or warped.
  • TV shuts off after powering on. Power light will blink. TV may also make a chirping noise.
Here are some pics of convergence problems.


7859b01.jpg

e87380c.jpg

Common Problem #2) CRT Fluid is Cloudy

Projection TV tubes have a liquid coolant that is used to keep them from overheating. After many years the coolant in the blue and green tubes will become cloudy and cause the screen to look dull, red/orange, etc. You may even see halos around images.

Picture of a set that needs the fluid changed.

578ba6c.jpg
TV set after fluid change

65af323.jpg

69189a5.pngSOLUTION

You can see some more examples and find a fix using this link on Fixya http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Jan 20, 2011 | Toshiba 65H82 65" Rear Projection...

1 Answer

Tv out of foucs


These procedures are from the owners manual, go into menu and then picture quality and then: Convergence The Convergence feature lets you adjust the TV’s three tubes. When the TV tubes’ images are precisely aligned, they create the color images you see on the screen. Over time, the picture can drift out of alignment (this is normal). If your picture seems fuzzy or has a yellow tint, using Convergence could correct this misalignment. Only one convergence is needed for all inputs, regardless of the signal format. Note: Make sure the TV has been on for at least 30 minutes (TV needs to warm up for best results) before starting Auto Converge or Red/Blue Centering. When you select the Convergence feature, a submenu appears with three options: Auto Converge Automatically aligns the projection lenses to self-correct color images. You’ll see flashing squares of color dance across the screen (this is normal). Note: After performing auto convergence, use the Blue Centering and Red Centering menus to fine tune convergence in the center of the screen, if necessary. Blue Centering Aligns the blue and green images to fine-tune the picture. Red Centering Aligns the red and green images to fine-tune the picture. Note: The ability to change channels is disabled when adjusting the convergence options. The TV must be tuned to a usable signal to converge the picture.

Apr 23, 2010 | RCA HD52W58 52" TV

1 Answer

I have a Magnavox 51MP392H/17 Rear projection TV. about 2 months ago the color start to merge into each other and showing double. I would cut the TV off...wait a few minutes then turn it back on and the...


yes its repairable
its a convergence circuit failure there are a couple ics and most likely some resistors that will need replacing and possibly a pico fuse

est 300 to 340 you mention only red and green though do you not have blue in your picture
id bet the blue is non exsistant and will need a blue liquid kit changed to correct that problem also

you might want to conatact a local servicer and give a model and ask them what they woud do both for then you can make a decision if you want to do it or not

Oct 31, 2009 | Philips Magnavox 51MP392H Rear Projection...

1 Answer

Convergence issue-60 inch RCA projetion TV


it is under set up options in the menu

Oct 16, 2009 | Televison & Video

1 Answer

Colours missing from tv


There are three color guns in a TV that make up the picture. Red, Green & Blue. It sounds like you have lost the green color gun.

You can get it rpeaired again, but your TV sounds like it is ready for TV heaven.

Jul 25, 2009 | RCA 20F512T 20" TV

1 Answer

Samsung HCN4727W Rear Projection TV, green screen, audio works


These sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the picture to look normal. This is called convergence.

When its out of alignment the video will look 3-D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired. Convergence problems are very common on all Projection TV sets including Sony, Samsung,JVC,Philip Magnavox,Panasonic,Akai2_bing.gif,Pioneer, Hitachi,Mitsubishi,Zenith and others.
You can get more information and a DIY convergenece repair kit with instructions from the link below.

Here are some of the most common problems with these sets...

Problem #1) Convergence

Yours may have one or more of the following symptoms...

*Screen Looks 3-D
*Colors wont align
*Screen may look distorted or warped
*No Audio/Video - TV Shuts down - May also make a constant chirping sound

Problem #2 - Another common problem is dull or washed out video.

Your set may have one or more of the following symptoms....

*Dull looking picture
*White looking picture
*Halos around objects
*Red/Orange looking picture

bb0cf99.pngYou can see some more examples and find a fix using this link on Fixya http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Jul 10, 2009 | Samsung HL-R4667W Rear Projection...

1 Answer

Green & red tint


Most likely nothing you can do to fix this. CRT TVs use 3 colors to make an image on the screen (Red, Green, and Blue). If you're only seeing red and green then chances are the blue has stopped working. You can replace certain parts in the TV but for a 27" TV you'll probably end up paying more for the repair than a new TV.

I don't recommend taking the cover off and trying to fix TV yourself without training. CRTs have a lot of electricity stored in them (even after turned off) and you could accidentally electrocute yourself.

Apr 06, 2009 | Daewoo DTQ-27S5FC 27" TV

2 Answers

Seeing triple red,blue,green


you have proble with the convergences ICs if the tree colors are at fault then also check your power supply voltages the polarization resistors

Feb 08, 2009 | Panasonic PT-53TW53 53" Rear Projection...

1 Answer

Red lamp issue


the color which you see has problem i think you might be seeing white slanting lines also with this. it mainly due to 1 supply to green video supply 2 loose cuntact in g.video section 3 green tr. defective 4 ckt from ic to green input is defective 5 chroma ic defective if supply is ok. regards

Sep 14, 2007 | Pioneer SD-533HD5 53" Rear Projection HDTV

Not finding what you are looking for?
Akai PT4298HD Rear Projection Television Logo

121 people viewed this question

Ask a Question

Usually answered in minutes!

Top Akai Televison & Video Experts

Jaime Hernandez

Level 3 Expert

2336 Answers

The Knight
The Knight

Level 3 Expert

75846 Answers

Marvin
Marvin

Level 3 Expert

82322 Answers

Are you an Akai Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...