Question about Akai PT4298HD Rear Projection Television

2 Answers

NO PICTURE OR SOUND JUST A RED LIGHT

Im having a red light on problem. There's no picture or sound of any kind. akia pt4298hd projection tv. Is there a code i can enter into the remote that will clear this condition? will replacing the power supply board repair this problem? what is the Samsung model number equivalent for Akia pt4298hd? What does the horizontal board look like? What does the convergence board look Like? Thanks any help will help. DVD MIKE

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  • Michael Warren
    Michael Warren May 18, 2009

    THANKS RULDS2008



    Okay I do have 120ac coming in.

    can you tell me what output voltages on what colored wire,connector or test point i should be getting out?



    Again thanks



    DVD MIKE

  • kajohe1 May 18, 2009

    Red light. Called tech support. What a joke. 1-800726-4405. Tried this sites solution of un plugging and plug back in push manual on switch. Does not work. Will try the 24 hour un-plug next. Any one ever thought of class action law suit. I cannot beleive all the same problems on these units.

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  • Expert
  • 233 Answers

DVD MIKE,

do me a favor, if the set is still together, please remove the back, and find the convergence card... it is on the upper right hand side. Unplug the RED plastic plug ONLY. Now try to turn on the TV. If it turns on, but the picture looks completely out of convergence, then yo uneed to replace the 2 STK392-040 IC's and you will have to test all of the 3.9 ohm resistors on the board. You will usually find 1 or 2 bad. let me know what you find.

Posted on May 21, 2009

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  • Akai Master
  • 3,866 Answers

Well you have to see whats going on first in order to enter a code!

You need ot start with the power supply unit then work yo way up from there.. I would call for estimates you never know.. The power supply is telling me it needs a new one.. That would be my best solutions then there maybe some minor things from there but yes look at the PSU first!!

Posted on May 18, 2009

  • Grand Canyon Tech
    Grand Canyon Tech May 18, 2009

    I do not currently have a voltage diagram for this model TV with me right now.. Your output to from your psu to the rest of your TV would vary on a whole lot of factors simply testing the psu for output would not tell you if the thing is bad if you got bulging capcitor caps on the mainboard you know you got issues with the supply. So check the psu for bulging or even leaking capcitors before you check voltages.. You have so many outputs on the there are 5V to 16V capacitors on the PSU... and so on.. you would need a whole lot more then a meter to check if the psu is dead!!





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