Question about Mitsubishi WS-55809 55" Rear Projection Television

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Mits 55809 LED wont flash 3 green after plug in AC

I went to turn my Mits 55809 on, powered up then off. I unplugged for a while, plugged back in AC, never got the 3 green LED blinks. Pushed input and menu and got error code "22". I'm looking all over in post for help with Initial control circuitry check. I have replaced my convergence IC 5 months ago and has worked fine. I'm stumped HELP!!!

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  • smc57
    smc57 Feb 10, 2008

    I've got the service manual. It says when checking initial circuit check, plug tv in and if LED flashes 3 times it indicates the microprocessor is functioning. If LED doesn't flash then Microprocessor is not functioning. Is that the IC7A00 on Control Circiut?

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  • Mitsubishi Master
  • 8,617 Answers

A code 22 means your set is going into protective shutdown due to a short circuit. This could be horizontal output or regulator transistors being shorted. However you will probably need a service manual to pinpoint the problem precisely. You can get a detailed service manual at the following link along with free support to help you diagnose your set's problem. They will also email the manual to you so you have access to it right away. here is the link.
http://servicemanuals.vstore.ca/

Posted on Feb 03, 2008

  • Sonny Berry
    Sonny Berry Feb 10, 2008

    Yes that is the IC.

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Here's something that might also be useful. After you turn on the set, and get the regular red blinky lights, hold down the Device and Menu buttons together for about 5 seconds.
The Power light will start to flash in a two digit sequence.

For example, 3 flashes, then 7 flashes = 37.


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Here's something that might also be useful. After you turn on the set, and get the regular red blinky lights, hold down the Device and Menu buttons together for about 5 seconds.
The Power light will start to flash in a two digit sequence.

For example, 3 flashes, then 7 flashes = 37.


Here are the error codes, and the corresponding problem:

12 = No error detected, check power supply.
32 = Lamp Cover is open.
33 = Air filter cover is open.
34 = Lamp abnormality
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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
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The issue is caused by both the FMT board (formatter) and
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thinking that the other board needs to be reset and then starting the boot
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You need to interrupt this cycle with a switch. Buy a DPDT switch from radio shack (or Mouser
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connection points. (If you can’t get tubing, then electrical tape will do, but
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45186c7.jpg






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Yeah!

From a plugged in, hmmm my power must have gone out,
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