Mitsubishi WD-52525 52" Rear Projection HDTV Logo

Question about Mitsubishi WD-52525 52" Rear Projection HDTV

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Lamp Light comes on afer 90 seconds

II am trying to troubleshoot my 52". 90 secinds after I turn it on the "Lamp" LED comes on and glows red. Ihave replaced the lamp but the same thing happens. Unit is out of warranty so I would like to repair it myself as an edcational project. Any suggestions? I have user manual and service manual but they are not very explicit beyound the basics.

Posted by Timothy Marshall on

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Anonymous

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  • 337 Answers

If you get a pix in the screen and then it goes away I will check the fans and make sure they are running ,it should have at least 2 and one of them should be cooling the lamp,if you never get a picture and the led glows after 90 seconds you might have a ballast problem,the ballast is the board that powers the lamp and it receives voltage from the power supply to strike the lamp.Be careful when working in the back.

Posted on Sep 25, 2006

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Error Indication Information
Error No. Error Information ERROR DESCRIPTION LAMP LED OSD LAMP OFF
(Note 3) (Note 4)
POWER LED TEMP LED
Note:
1.When any of the above errors has occurred, the LED will flash as shown above every 5 seconds.
2.When two or more errors have occurred at the same time, the LED will light up or flash as shown above, and then
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5.IC2301 is mounted on LCD Main C.B.A. which is included in the Projection Unit.
6.IC6001 is mounted on TV Main C.B.A.
Clogged air filter
more than 90%
15)
16)
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18)
1)
2)
3)
4)
5)
6)
7)
11)
8)
9)
10)
12)
13)
14)
- flashes 5 times -
every 5 seconds
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Lamp Cover open
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flashes orange
twice every
5 seconds
flashes orange
3 times every
5 seconds
flashes green for
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flashing red for
60 seconds.
light up red.
flashes once
every 5 seconds
flashes once
every 5 seconds
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flashes once
every 5 seconds
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every 5 seconds
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(abnormal
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Power Ballast Error
(other causes) - -
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Cleaning -
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-
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Note: The Filter time is stored in EEPROM (IC2305).
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IC2301 (pin11) detects the failure of light up processing of
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Error Symptom Problem Possible Solutio
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