Top 20 Akai PT4298HD Rear Projection Television - Page 9 Questions & Answers

tru going a google search for your brand and model # then type in remote or try this place to find the model # of your remote then do a google and ebay search for it

http://www.electronicadventure.us/Merchant2/merchant.mvc?Screen=SFNT

I have a similar problem with my AKAI 42 inch plasma, now my whole tv is purple. all you can do is contact akai warranty and have a service provider come out. but let me tell you, it is not an easy process if the service provider cannot help you. after the service provider told me that my tv was a goner. it took me two months to get a box to then send the tv back to an akai service center. now i have to wait a month or so, before i get it back. i wish you good luck.

OK WHEN A BORD GETS SHORTED OUT LIKE THIS IT MOST LIKLY CAUSES PROBLEMS WITH OTHER BORD'S AND COMPONETS BECAUSE I WOULD GUESS THAT IT SENT A SERG THROUGH MOST OF THE SYSTEM I HATE TO SAY IT BUT I THINK ITS REDY FOR THE TRASH UNLESS YOU WANT TO SPEND THE $ ON THE PROS

THANK YOU FOR THE ADVICE

More than likely your akai has defective stk392-040 Convergence chips . it also may have open resistors generally 3.9 ohm flame proff. this board is attached to the top left looking from the back of the set it is screwed on by 1 screw black in the center . after installation this will probably half to be converged dinamically. which means you will half to get to the grid this is done by using the remote press mute 183 quicly to enter numbers on thew remote 2 to adjust red 4 to adjust blue horizonta 6 to adjustred vertical and 8 to adjust red vertical using center button to go up and down

Sounds like dirty lenses to me. Do some research on optics cleaning for RPTVs. AVS is a good place to start. Also try this:

http://www.keohi.com/keohihdtv/learnabout/generaltips/screenoptics.html

Unless set has some sentimental value, junk it and get a new one. If you just want to try repairing, the boards you order may or may not have proper revisions for your model. Convergence set up can be tricky, simply not worth time or money

Have you tried service convergence? If so, consider replacing the convergence board. You can get one for $75 at www.partstore.com, but if you are electrically inclined you may be able to just replace the faulty components in the board (if indeed that is the problem). You'll need a multimeter and a soldering iron and a service manual for the schematic.

Hello!

Please try to unplug the power outlet to reset the setting automatically. and change the image setting of the TV. However, if this donot work. the projection of the TV maybe cause damage. On that case the error maybe in either in the horizontal or vertical setting of the tv. In this case you need a service tech to check the circuit inside. this needs a series of testing each parts of the TV. If the TV is less than a year then you can claim a warranty howver if this more than one year, service tech im sure it level on very reasonable cost same very cheap labor cost.

may this help, melnavz

Try using different inputs besides the RF input. Connect your PS2 and DVD player using component inputs. With two component inputs, there's no reason in the world not to do this.

I concur.
I find that the most durable HDTVs are made by LG or Samsung. For best image quality, Toshiba and Sony take the cake. It's always worth it to hold off and save up some extra cash - Your downtime will be much more vivid :) Good luck to you.

ok.

if you see only snow on the regular screen, might as well check the connecting antenna at the back since you mean all snow on all channels.

hope this helps.

no...glycol in the tv is not the same as in the car.. for one thing it is clear. i am not to sure where to purchase some. in the shop we get it specifically from the manufactor of tv. i would think there is not much diference in it though. Step by step humm...akai or samsung really dosent recommend this so i dont believe they ever gave a step by step.. but of coarse i once had a samsung tech tell me " GLYcol Dosent go Bad"..i cant count the amount i have replaced.. it basically invovles removeing the effected tube. blue if i remember you problem right. there is some basic literture that i might be able to send you... email me at [email protected] i wil try to get you some disasembly instructions

Mine had the same symptoms. It was the convergence board. I replaced it and all is fine. the part number is BP95-00142E and is available from vancebaldwin.com. It's simple to replace...

you can check this before you buy the part. take off the lower back of the tv. Convergence board is on the right in about the middle of the tv - top of the lower part of the back. comes off with one screw. you can unplug the power (mine was a red plug), then plug the TV back in and it should come on. If it does, picture will be bad, (it can't converge the tubes, obviously), but you should see the picture.

good luck

replace the convergence board. you can get it from VanceBaldwin.com. The part number is BP95-00142E. Easy install. You can test this TV before you buy the part.

If you take off the lower back of the TV, you'll see the board mounted near the middle of the TV on the right. On mine the power connector is red. Unplug that connector, replug in the TV and turn it on. It should come on, but the picture will be a mess as the tubes won't converge (obviously).

Plug in the new board, and keep right on going... $78 delivered. Took three days.

HERES where u can find a manual
http://www.eserviceinfo.com/most_popular/list_5800.html
https://www.manualsparadise.com/Sho...model=M31429247
https://www.completeservicemanuals.com/panasonic/digital-camera/lumix-dmc-fz5-service-manual/prod_86.html
http://www.user-service-manuals.com/Sony/UP.shtml
http://www.schematicsforfree.com/

Open back of TV, there will be two STK's (black boxes) unplug the harness connector from the power supply into the stk board and turn on. If you get some light to the screen, you know now to replace the two STK's and then replug the power supply to the convergence board. If that does not work, the power supply may also be bad.

FRIED CAPS IF YOU HAVE THE TEK NOW HOW HAVE FUN IF NOT I WOULD RECOMMEND HAVING THE PRO'S HANDEL IT

are u a tech? if you going to replace the tube i dont feel there much difference. both involve remove tube and puting back in and adjusting...just that glycol change is cheaper than the whole tube replacement. a little more work. have u evere changed a tube

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?