Question about Mitsubishi WD-52525 52" Rear Projection HDTV

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New Lamp turning off after 5 seconds

I just recieved my new Phyllips lamp for the WD-52525 tv. After installing it and cleaning the filter and turning on the tv, nothing happens. Frustrated, I held the limit switch for the cover panel of the lamp so I could watch what's happening when I turn on the tv and I could see the lamp turn on but after 5 seconds it turns off.

I do not beleive the new lamp is defective. Could this something else happening?

What next?

Posted by on

  • Scott60 May 10, 2008

    I just bought a brand new Mitsubishi bulb and it comes on for about five seconds and goes back off. I put back in the old bulb and it does the same thing so I am not conviced the buld was the problem. The Lamp light then comes on. I have reset the TV as well and that did not make a difference. Is this an engine proble?

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  • 395 Answers

1. (Lamp may light and go out) suspect bad lamp part # 915P020010 2. Check for 12-volts DC at J-9 connector pin 4 on the Engine Driver PCB, if missing check for an open F9A09 on the Power PCB, if it is open replace F9A09 part # 283P127060 and the Light Engine part # 939P977010 3. (Lamp may light and go out) Check for 5-volts DC at J-9 connector pin 1 and 2 on the Engine Driver PCB if low or missing check C9A37 and C9A38 both 3300 UFD 10 V part # 181P732040 on the Power PCB (part # 930B921002) 4. At power on the lamp turns on and off three times and then the unit shuts down with a red lamp LED (lamp error). Replace the Light Engine part # 939P977010 5. Lamp enable line at J14 pin 6 does not switch to 5 volts after turn on, 12 and 5 volt supplies are good. Suspect the Light Engine part # 939P977010 6. Lamp enable line at connector J14 pin 6 on the Engine Driver PCB switches to 5 volts after turn on and does go to 0-volts (low) after 5 seconds, 12 and 5 volt supplies are good. Suspect the Lamp Power PCB (ballast) part # 939P978010 7. Lamp enable line at connector J14 pin 6 on the Engine Driver PCB switches to 5 volts after turn on but does not go back to 0-volts (low) after 5 seconds, 12 and 5 volt supplies are good. Suspect the Light Engine part # 939P977010

Posted on Apr 25, 2008

  • David Pierce Oct 02, 2012

    Hey Robert.... thats ALOT of info for a ******* to pick up:) is there a wiring diagram sumwhere I can look at or DL? got my Fluke aand a bunch of time:) lost my leg last year...) anyway, I got this WD-52525, cleaned it, but think its the lite.... but Im poor and would rather fix it rite the first time... thx 4 any help bro....

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