Question about Philips 55PP9352 55" Projection Television

4 Answers

Phillips 55pp93 5217 - starts up and then shuts down

Hi,
I have a phillips 55pp93 5217. It powers on for a bout 20 - 30 seconds. I hear the tubes warm up (sometimes start to see a faint picture and then
the shuts down. I know that most modern TV's have auto protection that
will shtu them down if ceratin components fail but how do I figure out if it's just a matter of replacing the RGB tubes etc.

Any help wouild be most appreciated !!!

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  • 2 more comments 
  • conod Nov 02, 2008

    It was off all night then I turned it on and it would not start.

  • conod Nov 02, 2008

    Is there somewhere I can get a layout/schematic for this TV?

  • conod Nov 02, 2008

    Still not working I will test the vertical deflection Ic if i can get a schematic.

    However I could see at least a faint outline of the picture in the first attempts to get it running and the picture looked correct, could not determince color though.

  • conod Nov 02, 2008

    I'll look at the PS first...

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4 Answers

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  • Master
  • 535 Answers

Chak the power capacitor its has been likey or damged 

Posted on Nov 02, 2008

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  • Master
  • 6,966 Answers

Hi,

Initially, pls do a run down of past events:

  • was there anything out of the ordinary, ozone smell, power outages/interruptions, improper picture display;
  • any instance where the unit failed to turn on at the first instance.
In the unit's current state:
  • any blinking lights, if yes how many, any sequence;
  • any other indicator, clicking sounds;
  • is the outlet supplying sufficient power, have you tried it in another outlet;
  • are you using a power strip;
  • have you tried powering the TV through the front panel controls.
Other than the reset, all other diagnosis/checks would require opening the unit. This of course would require a fair familiarity of electronic components/circuitry and safety procedures, use of a DVM and a soldering iron. It would be to your added advantage access to a service manual or at the very least a schematic diagram with voltage readings. Should you be uncomfortable performing a DIY (do-it-yourself), perhaps your best bet would then be to seek the services of a qualified professional.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards. Thank you for using FixYa.

Posted on Nov 02, 2008

  • Louie  Role
    Louie Role Nov 02, 2008

    For the schematic diagram and/or service manual, pls confirm the Chassis Number DPTV310.

  • Louie  Role
    Louie Role Nov 02, 2008

    Hi again,

    You may want to check out this Service Manual that covers the DPTV305 DPTV310 DPTV315 DPTV330 DPTV335 DPTV340 DPTV345 51MP392H-17 CHASSIS

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  • Expert
  • 89 Answers

Please check the ic of vertical deflection circuit first

Posted on Nov 02, 2008

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  • Philips Master
  • 19,396 Answers

TRY FIRST UNPLUGGING POWER CORD FOR TEN MINUTES.

Posted on Nov 02, 2008

  • Ginko
    Ginko Nov 02, 2008

    Oops, sorry for capitals, I had the caps lock on.

    Try first unplugging the power cord for at least ten minutes, if that does not work leave unplugged for two hours.
    This will drain power from TV completely , resetting circuits and solving many problems.

    If that does not work, that means that there is a real fault.

    If it was the protection circuit (all TVs built in the last 20 years have it), then the tv won't even power on. It would stay on standby mode, probably clicking all the time.

    When TV shuts off that way is usually a faulty component that fails when it gets hot, probably a faulty capacitor or IC, that warms up and fails, breaking a circuit or returning a wrong voltage.

    Often you get this because one or more capacitors on the power board had blown.

    The convergence ICs can also fail when TV warms up , but usuallt they do not turn off the TV.

    In rare occasions also a faulty lamp can shut down when it warms up.

    The TV must be taken apart and ispected by a technician.


  • Ginko
    Ginko Nov 02, 2008

    Service manual for this particular model is not available for free download.

    You can try asking a service manual to Philips,calling at 1-888-PHILIPS 7AM-11Pm EST Mondays-Saturdays, and 8AM-11PM on Sundays in US, or calling the customer service for your area listed on the user manual. They will ship the manual (booklet format) for about $30

    If you want instead buy the manual from a private seller, in PDF format, you will pay $9.95, try here (click)

    The wesite says magnavox, but Magnavox 55pp9352 is a retagged Philips.

    If you cannot see the manual in list contact them here (click)





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