Question about Akai PT5598HD 55" Rear Projection HDTV-Ready Television

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AKAI PT5598HD

Up & died. Lost the perfect focus first about 3-6 months prior. Timer light does come on but nothing else. Tried customer support & no one seems to know anything about this tv including parts. Where is the conversgence ic, how do you know if it needs to be replaced and how do you know part numbers for this and the lamps?
Thanks My wife was watching the TV in our family room, and I was in my office a few feet away. The TV was working fine, then I heard a short bzzt, no screen flash or anything else, and the TV died. We have not been able to get it working, nor have we sent it to a shop. It's $50-$75 each way, and if the set is finished we don't want to incur the expense. Can anyone help?
TK

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  • john smith Dec 10, 2008

    i have the pt5598hd and my timer light blinks ,but nothing comes on //// no sound and no picture = nothing works ,help me please -or -tell me were i can get the work done in lodi ca ,95240

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Do not panic! Do not throw your TV away like I wanted to! Here iswhat may be the solution for most of the members who have postedtheir complaints here recently. I am not an expert, but I followed allblogs from various websites and forums, and the conclusion was thesame;replace the convergence board for this model. I purchased itfromwww.partstore.com and since this Akai is the same model as acomparable Samsung Model, buy the Samsung comparable Convergenceboard for $77. It came to about $85 after shipping. Call them if youneed the exact model #. The Convergence board has two black STK ICs andtwo colors of wires, a gray kind and a blue kind,all which have 'pins'and can easily be unplugged from the circuit board inthe TV. It is basically a complete system that takes less than30 minutes to install. It is a simple swap procedure, with nosoldering.You only need the new board and a screwdriver! Remove thelower backboard 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 thenew board. You then unscrew the only screw connecting the board to theTV,and unhook the board from the TV. Hook the new board to the hookswhich held the old board, and screw the lone screw to the board. Plugthe gray cables from the new board to the connectors where the graycables from the old board were,and do so for the blue cables. Connectthe multicolored cables to the blue, green and red, just as was done onthe old board. Reattach the cover and test the TV. Please do notreplace the two STK ICs only. When I removed my old board, I realizedthat there was a burn mark, where the ICs were, but maybe it was a fuse.You may replace the ICs only to discover that it was another problem.Good luck, and I wish you all the best in the repairs. I just savedabout$100 for a repairman just to show up.

Posted on Dec 11, 2008

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Akai is not a good brand of tv to have and they are expensive to repair. i would go with getting a replacement tv. they are impossible to find parts for

Posted on Nov 17, 2008

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1 Answer

Picture is bowed at the top and bottom of the screen. The "Perfect Focus" option does not work to fix this. Is there a way to manualy adjust the picture


If the perfect focus isnt working its caused by failed convergence. You can get the convergence board from www.tvrepairworld.com its under the Samsung / Akai circuit boards.

Mar 30, 2011 | Akai PT5598HD 55" Rear Projection...

1 Answer

AKAI PT5598HD will not turn on.


if you got to the following link and search by the model number you will find what your looking for.

Http://www.samsungparts.com/search/search.asp

The part number for the service manual is SM-PT5598HD

As the set is showing a blinking red timer light. you can check the following link out.
http://www.techlore.com/article/15444/

May 13, 2008 | Akai PT5598HD 55" Rear Projection...

2 Answers

AKAI PT5598HD - I HAVE REPLACED THE CONVERGENCE BOARD AND PICTURE AND SOUND ARE "ON" BUT "PERFECT FOCUS" WILL NOT BRING BLUE INTO FOCUS. "PF" STOPS AT 37% - RED AND GREEN PATTERS ARE SHARP BUT BLUE IS...


Most of these sets have a SCREEN/FOCUS block---usually all black with 6 controls----you need to look close at it as one row of 3 will be screen controls---don't touch those----the other 3 will be FOCUS- MARKED in little letters will be r,g,b(red,green blue). TWO ways to adjust the focus: 1. carefully locate the blue focus control and adjust to see if blue will improve in focus. 2. each of the 3 large lens where the picture comes out have a wing nut and a slot--you can loosen the nut and turn the lens---usually best focus that way is if the part that turns is in the middle of the available area to move it.

I should point out that all projection sets intentionally de focus the blue--the lines if blue should be clear but never as perfect as green or red--this is normal.

I do this here for free so if this has been helpful give me a vote here.

if you need direct help:
etower.766@netzero.net

Aug 20, 2009 | Akai PT5598HD 55" Rear Projection...

1 Answer

PERFECT FOCUS NOT WORKING STAYING ON 0% PROGRES


You convergence amp has failed. A CRT service shop should be able to fix it.

Mar 12, 2009 | Akai PT5598HD 55" Rear Projection...

2 Answers

Akai 55


I used" Silerado 1st" solution. I have an Akai pt5598hdix/sms.
I had ghosting.Like 3 colors side by side.
Silerado said with TV off press "mute,1,8,2" then TV on.
I didn't see anything like a menu.He warned to write down any setting you saw before you change anything.But for me nothing came up. So as he said the next step try with TV "on" press "Mute,1,8,3" this is another set of adjustments for finer detail. I lined/overlapped all the lines up or down or side to side useing the channel and the volume buttons and then held the enter button down until the TV flashed 3 times.Then I shut it off and when I turned it back on It was perfect.
Thomas Fitzgibbon

Mar 23, 2008 | Akai PT5598HD 55" Rear Projection...

1 Answer

Convergence


Do you have an extended warranty on it?

I would have a shop look at it if you cant get the alignment from the menu.

Feb 25, 2008 | Akai PT5598HD 55" Rear Projection...

1 Answer

Won't turn on


If you're using a DVD player or other component using the Component cable hookup, try unplugging that from the mix, unplug the power cord for the TV from the wall and wait 15 seconds and plug it back in, then power the TV back on. Mine used to do this and I gave up on the component cable option and went back to composite (RCA).

Feb 09, 2008 | Akai PT5598HD 55" Rear Projection...

1 Answer

Describe your Akai PT5598HD 55 in.


looks like you have a convergance problem akai is made from samsung
· http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
· http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

Dec 17, 2007 | Akai PT5598HD 55" Rear Projection...

1 Answer

AKAI PT5598HD


Your set has what is know as "convergence problem" because of the bowed lines and ghost in different colors,is really not an easy solution,the set should have 3 amplifiers(one for each color)and they need to be replaced with an exact replacement,sometimes just by replacing them the aligment should be close but soemtimes you nned to get into the service menu to do some adjustments,the amps(IC's) are mounted on heat sinks and all 3 have the same part number on its face,they normally read STK--- ---,every set uses different amps,If you are familiar with tv service you have now a place to start working but if you are not too familiar be safe and call for help from a servicer.Let Us know if you need more information.

Oct 31, 2006 | Akai PT5598HD 55" Rear Projection...

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