Question about Panasonic TH-50PX60U 50 in. Plasma HDTV

3 Answers

No audio or video but LED blinks 5 times

Repair shop said "defective PCB module". I have replaced P board, D board and P-A board (in that order with no change in number of blinks) on recommendation of repair manual (noticed some minor design differences on P-A and D boards.

Replaced boards with brand new boards from a TV with broken screen. Used ESD precautions.

Can hear relay energize when 1st plugged in.

What next???

Thanks,

Jeff

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This is the link to help you with a to z diagrams.have you connected the board perfectly you can look into it each and every part description in brief with exact knowledge.you can fix any type of problem you are facing.your problem is mentioned between pages 40-49, but i will suggest you to refer from page 1 to know about each and every part.
http://www.pasctraining.panasonic.com/pass/elearn/files/Plasma/9th_Generation_Plasma_Display_TV.pdf
you have to check
sos line----sos-5, line monitored---- 5v, problem occurs--- 5 blinks

pls do not forget to rate the solution as "FIXYA" SIR

feel free 4 further assistance n keep sending more question n comments or doubts that arise in ur mind regarding this to me.rate the solution as fixya if it helps u understand n solve ur problem
wish u success .bye.

Posted on Jul 01, 2008

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  • 2,035 Answers

Did take the same model board from other TV ,some different tv model is not compatible with tv's they differ make and model , you need same model board in order to work on your tv..

Certainly, I can help you. I would recommend going to the following link and getting the service manual so he can see first hand disassembly instructions and testing proceedures. Its only 10.99 and they email it to you shortly after purchase. The manual is a valuable resource as it will have part numbers in case you do need a new KD board. heres the link.
http://servicemanuals.vstore.ca/

Posted on Jul 01, 2008

  • Anand Kumar
    Anand Kumar Jul 01, 2008

    When it shuts off. Try doing what's called a self-diagnostic test.
    As soon as the television shuts try these steps.

    Pressing on the front panel's ?INPUT? and ?MENU? buttons at the same time, and holding for 5 seconds,
    activates the Self Diagnostic Code Mode. The LED flashes denoting a two digit Error Code, or indicating no problem
    has occured since the last Initalization.

    Please do Note: The front panel buttons must be used, NOT those on the Remote Control.

    ? The number of flashes indicates the value of the MSD (tens digit) of the Error Code.
    ? The flashing then pauses for approximately 1/2 second.
    ? The LED then flashes indicating the value of the LSD (ones digit) of the Error Code.
    ? The Error Code is repeated a total of 5 times.
    Example: If the Error Code is ?24?, the LED will flash two times, pause, and then flash four
    times.

    The Error Code designations indicating a malfunction, or no malfunction, are listed below:
    Self Diagnosic Code Description
    1 - 2 = no error detected
    2 - 1 = X-ray protect (high voltage or beam current)
    2 - 2 = Short protect (short protect monitors low voltage supplies)
    2 - 3 = Deflection protect (this could be loss of vertical or horizontal deflection)
    2 - 4 = Vertical protect (usually loss of vertical from the source).

    Good luck.........


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Does the unit start or what?

does the unit start fully and shut off??

BTW what was the blinks pattern??

Posted on Jul 01, 2008

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Posted on Jan 02, 2017

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Good Day;

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1 Answer

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Even if you replace the capacitors already mentioned in this
thread, you may still suffer from the Green LED of Death. Here is how Bronson279 helped me resolve the
problem. But note that it involves
adding a switch to your tv set and requires a bit of soldering ability and the
willingness to void your warranty. BUT
you can save big $$$$ on sending the set out for repair.

Here is my solution-
After replacing several bad capacitors (you can get replacement capacitors
from Mouser electronics on line by the way.. be sure to order the same capacitance
values and same or higher voltage rating and be sure they are rated for 105
degrees C.) I still had the dreaded G.L.O.D. Note that the first time I plugged it in
after taking it apart the G.L.O.D was not there and it powered up
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The issue is caused by both the FMT board (formatter) and
the DM (Digital Module) board’s microprocessors tying to establish
communications with each other. Somehow a race condition gets started with each
thinking that the other board needs to be reset and then starting the boot
process over again.





You need to interrupt this cycle with a switch. Buy a DPDT switch from radio shack (or Mouser
Elec…) and again take apart your electrical chassis (If you have it apart
replacing bad caps you might as well add the switch or you may end up having to
disassemble the whole thing again.) On
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It has two black wires and 1 orange and one Brown wire. Leave the black wires connected and cut the orange and brown ones about an
inch from the connector. Solder four 12
inch wires onto the ends (one on the source side brown, source side orange and
one on the connector side brown and connector side orange) use heat shrink tubing to cover the solder
connection points. (If you can’t get tubing, then electrical tape will do, but
make sure the joints can’t short out to each other or the electrical chassis.) Now take the brown and orange wires from the
connector side and solder those to the middle two terminals of the DPDT switch
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The idea is to connect the wires normally when the switch is closed and
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the wires to the switch add a piece of heat shrink tubing to wire so that you
can cover the solder point up after it is assembled.

























45186c7.jpg






Now re-assemble the electrical chassis and route the switch/wires
outside the chassis (I snipped a hole along the edge of the top fan shield to
get the wires out.) and put it back in the TV.
You need to also get the switch to the outside of the TV somehow (I
drilled a ½ inch hole in the plastic cover to snake the switch through but you
can do it however you like)





Here is how to use it-
From a fresh plug in- throw the switch to the OPEN position (the wires
are not connected) plug in the TV, the green LED should stop blinking after 60
secs like it is supposed to. Once it stops, flip the switch the other way so
the wires are connecting. Hit the power
button. The TV should turn on- your done!
Yeah!

From a plugged in, hmmm my power must have gone out,
state. Assuming you have the GLOD, flip
the switch to the open position, hit the reset button on the front of the tv,
wait for the blinking to stop, flip the switch back closed and turn the TV on
normally… Again you are done…

Note that the first time you turn on the TV you may have to
flip the switch the other way (if the TV won’t turn on even without a blinking
LED) This means that the switch was open and you need to have it closed to get
it to work. If you tried turning on the
TV with the switch open, start over by following the reset button procedure
above.

Note this is much easier to do than it sounds. Also note that it helps if you have the
repair manual. Its titled V26 Repair
Manual –full This is nice to have
because it has a wiring interconnect diagram also which details all the
connector placements

May 12, 2007 | Mitsubishi WD-52525 52" Rear Projection...

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