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Sometimes a picture/sometimes not

I have a Mitsubishi WD-52627 ( I think) and I recently replaced the lamp and continue to have this intermittent problem of no picture. I turn on the TV, I hear sound, however, after a minute without a picture, it turns off and gives the constant red indicator light. Usually, I can just turn it back on and it works fine, but lately, it's gotten to where I have to attempt numerous tries for it to work. What do I do? I just bought the lamp about 3 months ago.

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  • don_thurston Jan 08, 2009

    I have removed the lamp and carefully replaced; it made no difference. Yesterday, I watched the TV twice during the day. The first time I turned it on, it took (2) attempts, the second time, it took (6) attempts.

  • don_thurston Jan 18, 2009

    Okay, it sounds like you may be on to something. Here's an update on the TV's behavior. I unplug the TV overnight, next a.m. plug it back in. TV comes on 1st attempt. After viewing, it will take (2) attempts to restart. Next time, it will take (3) or (4) attempts to come on. After this, it simply won't come back on. I have taken out the bulb and inspected. I can't see any defects and it replaces back in it's housing without problem.

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Hi! HDMI-2 must be set as a PC in Netcommand to take the 1080p. In that mode, the info button does not give a source resolution. When in PC mode, HDMI-2 allows you to specify 1920x1080@60Hz which gives text significant clarity compared to 1920x1080@30Hz via non-PC HDMI-2 or through HDMI-1 where you have the main video output including HD-DVD. 60Hz in non-PC mode results in no sync.

The only downside to using HDMI-2 with the PC setting is you get fewer controls over video settings such as Bright/Natural and Perfect Color, which is fine in general, but not ideal for movie playback.

Posted on Jan 08, 2009

  • Rylee Smith
    Rylee Smith Jan 18, 2009

    I THINK THE PROBLEM IS DUE TO 1 OF 3 THINGS. 1.CAPICITORSS 2. LIGHT ENGINE 3. FORMATTER BOARD.



    Thanks

    RYLEE

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Hi there
Maybe you need to reset the TV. There are 2 ways of doing this:
1. Press the SYSTEM RESET button on the front panel with a pointed item such as the point of a ball point pen or end tip of a paperclip.
The TV will turn off and the green LED will flash quickly for about one minute. When the green LED stops flashing, you may turn on the TV again. The changes you made while the TV was most recently on, before you used the SYSTEM RESET button may be lost; the changes you made previously, however, are not lost. Only those changes since the last power On may be lost when the system reset button is pressed. All other settings are retained.
2. Using the Reset Menu to Reset the TV
Read on-screen warnings before proceeding, as some user data or settings may be erased.
Select any device from the Device Selection menu. Press TV MENU followed by 1,2,3 to see the RESET SERVICE MENU to reset the TV.
Select Reset System Defaults (CAUTION: All settings, except V-Chip, will be reset to the original factory defaults).

Good luck

Posted on Jan 08, 2009

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The noise you are hearing are the lamps trying to come back on. you have a short between the main board and the lamps. It is a very high voltage area. i would recommend that you call a profesional to handle this issue for you. they use plastic tolls so they do not get shocked nor short anything else out on the unit.

Posted on Jan 08, 2009

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Try to move your tv you may have it in a place it cant get cool air and its melting a fuse so the whole tv dosent brake just see if you can replace a fuse and move the tv into a cool area

Posted on Jan 08, 2009

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Take a Look at your Fan it maybe going Bad.

Posted on Jan 08, 2009

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This sounds like the flyback converter is going out and needs replaced!

Posted on Jan 08, 2009

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Open the cage and remove the lamp then refit it in place, taking all precaution, the fault sounds like a broken solder joint somewhere in the lamp contacts.

Posted on Jan 08, 2009

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  • Ginko
    Ginko Jan 08, 2009

    The constant red indicator light means that the TV is on protect mode because a fault had been detected.

    If the fault started after the lamp had been replaced, check that the lamp cage door is closing properly, and you can eventually try to take out and refit the lamp in place, taking all precaution listed on the manual.

    If the TV loses picture intermittently, and this is associated with vibration (eg hitting the floor or hitting gently the TV rester get lost), then it is a cold solder joint , maibe on the little board that powers the lamp. This means that there is a bad contact on one of the boards due to a bad soldering.

    if instead the picture loss is random, then it is an internal component that is failing.

    This often happens because of a defective capacitor on power board, or because an IC (often convergence ones) or a different component is failing.

    Try leaving the TV unplugged for a couple of hour, with some luck it can restart, in any case I think that there is a problem that is not related to the lamp , unless the new lamp is faulty, but that is unlikely. I think the TV should be inspected by a technician.


  • Ginko
    Ginko Jan 08, 2009

    Tht is because one component is failing and things are getting worse, it may be one of the capacitors on power board that started giving troubles and now had blown, there are thousends of components on the TV that can do the same.

    The fact that a new lamp had failed in this way, going off randomly, is quite unusual , I do not think this is the lamp.


  • Ginko
    Ginko Jan 08, 2009

    The noise you hear is not the lamp trying to come back, the lamp makes no nose normally, the noise is the protection circuit that is activated when a fault is detected.

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