20 Most Recent Akai PT4298HD Rear Projection Television - Page 7 Questions & Answers


buy a new tv

Akai PT4298HD... | Answered on Apr 08, 2009


Your TV most likely has one or more possible problems.

Problem #1: Convergence Chip Failure ( common problem )

Here are some of the most common symptoms and example photos of a convergence problem
  • 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.
701cb04.jpg
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Here is a quick test....

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

Try to adjust the red and then the blue convergence.



You should be able to move them up, down, left, and right.

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

2c07611.pngSolution #1

You need to replace the convergence chips and convergence resistors. Check the site www.TvRepairKits.com. They have put together a kits for most models. If you don't see a kit for your set send them a quick note and they will put one together for you. Their kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, etc.


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.

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TV set after fluid change

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2c07611.pngSolution #2


What you will need to do is replace the coolant and clean the crt. You can get a repair kit from www.TvRepairKits.com that includes replacement coolant, photos. instructions, etc.

Akai PT4298HD... | Answered on Apr 08, 2009


STK392-040 available in Part Store.

Akai PT4298HD... | Answered on Mar 27, 2009


You need a professional.
Stop using the TV until it is repaired.
Continue to use it and your problems will multiply and grow more expensive.
Call the manufacturer to find you nearest authorized service center.

MR. TV Sales & Service Inc
Milwaukee Wisconsin 53405
(414) 762-8600
Established 1974

Akai PT4298HD... | Answered on Mar 24, 2009


My AKAI 42 rear projection self focus set has blue shadows on everything and too much red, I cant seem to adjust it and self focus does not help?

Akai PT4298HD... | Answered on Mar 23, 2009


Ck 3 low ohm resistors 2.7 ohms they will be on same board as ICs.

Akai PT4298HD... | Answered on Mar 05, 2009


My recommendation is to call a local svc co. Since you heard a pop, it could be anywhere in the set. It requires trouble shooting to isolate where the problem is. I hope this is help-full for you.

Akai PT4298HD... | Answered on Feb 28, 2009


hi, the input blocks are where you will need to look for this problem. sometimes these block connection become lose and detached from the main logic board. this could happen due to a minor crack in the solder or to much pressure when inserting cables and input rac jacks etc.. replacing or repairing this section of your TV's board will fix this issue.

Akai PT4298HD... | Answered on Feb 25, 2009


Here's a link to order the original Akai remote control for this model (PT5598HDIX) from a major parts distributor:

Akai PT5598HDIX Replacement Part Remote Control

Also available in a cheaper version made by Samsung (which makes parts for Akai units) below:

Samsung PT5598HDIX Replacement Part Remote Control

Akai PT4298HD... | Answered on Feb 18, 2009


it sounds like you have hit the zoom button or your aspect ratio isnt right. the aspect ratio should be set to 16:9 (if there isnt a button for aspect ratio, change it in the menu) and there should be a zoom button on your remote and just keep hitting that and it should return to normal. If neither works, post your tv brand and model and i'll try to find another answer

Akai PT4298HD... | Answered on Feb 05, 2009


adjust the convergence..........push mute 1 8 3.....and it will take you into it. pnce in 2 will change the adjust mode, and 7 8 9 change color options

Akai PT4298HD... | Answered on Feb 03, 2009


Do not panic! Do not throw your TV away like I wanted to! Here is whatmay be the solution for most of the members who have posted theircomplaints here recently. I am not an expert, but I followed all blogsfrom various websites and forums, and the conclusion was the same;replace the convergence board for this model. I purchased it fromwww.partstore.com and since this Akai is the same model as the SamsungModel # HCN4226WX/XAA, buy the Samsung BP95-00142E Convergence boardfor $77. It came to about $85 after shipping. The Convergence board hastwo black STK ICs and two colors of wires, a gray kind and a bluekind, all which have 'pins' and can easily be unplugged from thecircuit board in the TV. It is basically a complete system that takesless than 30 minutes to install. It is a simple swap procedure, with nosoldering. You only need the new board and a screwdriver! Remove thelower back board of your TV where the cables are plugged in (do notunscrew all the screws for the screen, as it is unnecessary, and mightjust damage your screen if you are not careful.) It has a u-like shapeand comes off easy. Detach the gray wires connecting your old board tothe rest of the circuitry, and detach the blue wires connecting the oldboard to the circuitry. On the old board, there are connectors marked,from left, blue, green and red. Detach those from the old board, andmark the wires so that you may connect the correct the wires to the newboard. You then unscrew the only screw connecting the board to the TV,and unhook the board from the TV. Hook the new board to the hooks whichheld the old board, and screw the lone screw to the board. Plug thegray cables from the new board to the connectors where the gray cablesfrom the old board were,and do so for the blue cables. Connect themulticolored cables to the blue, green and red, just as was done on theold board. Reattach the cover and test the TV. Please do not replacethe two STK ICs only. When I removed my old board, I realized thatthere was a burn mark, where the ICs were, but maybe it was a fuse. Youmay replace the ICs only to discover that it was another problem. Goodluck, and I wish you all the best in the repairs. I just saved about$100 for a repairman just to show up

Akai PT4298HD... | Answered on Jan 28, 2009


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.

Akai PT4298HD... | Answered on Jan 17, 2009


Enter muye 1 / 8 /3
it puts you into convergence mode and clears out all bad magic foces data.
then run perfect focus to save new data.

hope this helps
daniel

Akai PT4298HD... | Answered on Jan 13, 2009


There is a interlace setting if this is set to high it gives that red smudged look please check for that setting in the menu

Akai PT4298HD... | Answered on Jan 04, 2009


BINGO thats exactly what i get paid to do same price 285.00

Akai PT4298HD... | Answered on Dec 30, 2008


its the problem of ic on the main board..ic needs to be replaced.not much expensive.

Akai PT4298HD... | Answered on Dec 30, 2008


What numbers are you using to move up AND down?

Akai PT4298HD... | Answered on Dec 24, 2008


What is a TV?
It is a Drug that onced you are addicted to it you cant live without it! You are willing to do anything to watch your shows and when it needs repairs you want it Fixed by Yesterday!

Akai PT4298HD... | Answered on Dec 21, 2008


If it is a fuse with no reading replace it ,What is the location number of part?For example F54 or does it have c45 or R66 ect..... You can E-mail me at trinity-tvrepair@peoplepc.com

Akai PT4298HD... | Answered on Dec 19, 2008

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