Question about Akai PT4298HD Rear Projection Television

1 Answer

My convergence is off on my tv

I have a big, bright, curved, line going through my tv. A friend told me it was the convergence on the tv, but I cant seem to figure out how to make it work right.. I keep pushing the volume and channel buttons on the remote and I get very small responses on the screen..

Posted by on

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
  • 77 Answers

The convergence circuit has failed, pretty common problem. Usually 200-300 will get it going depending on if you bring it in or have somebody out

Posted on Apr 21, 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

I have a Phillips 60" rear projection TV. recently


Tv have a problems known as a convergence problems,it is dead.The tv convergence board it is dead,that why ur tv picture are R,G,B colors lines mis alignments,have colors shadows picture or 3D picture lood alike?The tv convergence board require changes 2 STK convergence ICS and some or all of it resistors too.To fixed the tv convergence board to solved the tv convergence picture problems.The shop will cost u like $300-350 for parts and labors.

Jun 01, 2011 | Philips Televison & Video

1 Answer

Lines are curved image brightness is faded and there is a slight double image that makes everything fuzzy.


It seems problem with convergence output section in tv, check convergence two output ICs and replace them to fix the picture issue.
If you have electronics knowledge and parts replacement experience in circuit boards then can attempt by yourself or ask local tv repair shop to help you.

Jul 14, 2010 | Sony KP-53XBR45 53" Rear Projection...

1 Answer

55PW9363 55 in. Rear Projection HDTV-Ready Television: My Phillips big screen has double images and doubl...


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 projeciton 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 photos of convergence problems.

42d3683.jpg

7859b01.jpg

e87380c.jpg
Here is a quick test....

Using your original remote go-to the settings menu then goto the convergence section.

Try to adjust the red and then the blue convergence.

You should be able to move RED and BLUE in all directions - up, down, left, and right. And you should be able to get the grid straight.

If you can't move them in all directions or cant move them far enough your convergence chips are bad and should be replaced. This is a common problem.

Note: If you TV has as flash focus or magic focus button only try pressing the button. If it fails to fix the convergence your need to fix it. See below for a fix

69189a5.pngCONVERGENCE SOLUTION

You will need to replace the convergence chips and possibly some convergence resistors and pico fuses.
This is a a fairly easy DIY job if you are handy and can follow directions. You can get complete repair kits from TvRepairKits.com or click here. They have put together DIY repair kits that include the OEM parts and step by step photo instructions for each repair. If you are not handy or can't follow directions we would suggest calling a shop.

May 17, 2010 | Philips 55PW9363 55" Rear Projection...

2 Answers

I have a 52inch projection hdtv that is 3/4 years old. The picture is curved and colors misalign,and doubled


remove the back and throw a heavy blanket over the screen, theres gonna be about 6-8 knobs on the inside, tinker with them until all the colored lines u can see on the inside are solid, bright, and straight

Dec 10, 2009 | Televison & Video

1 Answer

The picture looks 3D


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 photos of convergence problems.

42d3683.jpg

7859b01.jpg

e87380c.jpg
Here is a quick test....

Using your original remote go-to the settings menu then goto the convergence section.

Try to adjust the red and then the blue convergence.

You should be able to move RED and BLUE in all directions - up, down, left, and right. And you should be able to get the grid straight.

If you can't move them in all directions or cant move them far enough your convergence chips are bad and should be replaced. This is a common problem.

Note: If you TV has as flash focus or magic focus button only try pressing the button. If it fails to fix the convergence your need to fix it. See below for a fix

69189a5.pngCONVERGENCE SOLUTION

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

Oct 03, 2009 | RCA HD52W56 52" Rear Projection HDTV

1 Answer

Letters and numbers are 3d and curved picture


Hello

red, green, and blue lines curve across the top of tv is cause by defective convergence STK IC or you have open resistor at convergence section. if you have defective RGB Color vertical ramp probably you have defective STK IC..

Angel
Thanks...

Aug 02, 2009 | RCA D52W23 52" HDTV CRT TV

2 Answers

Red green lines across my screen on 51 inch tv hdtv


If you cannot align those crosses, then the convergence section is damaged. should be repaired by a qualified technician, its a big job.

Jul 20, 2009 | Philips 51PW9363 51" Rear Projection...

6 Answers

RCA HDTV blurry


this indications that you have a problem with convergence. first try to go into customer menu...setup....convergence. and see if the convergence will adjust.. if it wont then you have a problem with the convergence cuircit boards.

Oct 05, 2007 | RCA HD52W59 HDTV Projection Television

1 Answer

Curved horizontal lines in picture


Its Sounds like Convergence Circuit,If you take the Back off and look on the right side you should see a Board with Big black Ics Mounted beside a Large Heatsink,Mark the wires where they go and Make sure the POWER is Off Pull the Board out and Inspect the Connections from the ICS,you find Circle Breaks,They need to Be resoldered and That should fix the Set....

Jul 20, 2007 | Samsung PCK5315RX TV

1 Answer

Strange Image Flubbering/Convergence Problem, Flutters From Dark Picture To Light Picture.


you "tooled around with the convergence board" well this chassis has several problems if the convergence doesnt hold replace both stks resolder around that area per tosh tech bulletin the bright problem is probably the hyper module all toshs should be checked with toshiba website to see if they were part of the recalls for power supply caps

Nov 30, 2006 | Hitachi 50UX57B 50" Rear Projection...

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

Related Topics:

27 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

75767 Answers

Marvin
Marvin

Level 3 Expert

81400 Answers

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

Answer questions

Manuals & User Guides

Loading...