Question about Panasonic TX-36PF10 TV

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Panasonic TX-36PD30L not starting

I have a 4 year old TV  from Panasonic. Good TV but yesterday had a problem with the power supply to our house which resulted in dimmed house lights. Electricity is now back to normal but with the TV in standby mode (red light on) it attempts to start up but then goes back into standby mode. No video or sound at any stage. The TV was on during the power fault and while I managed to turn it off pretty quickly I did hear a 'scraping noise' before I managed to switch it off. Perhaps its some kind of fuse that has blown?

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  • gejkelly Jan 18, 2009

    Tried that. Same result. Seems to spend 5-6 seconds trying to turn itself on (red standby light off) and then back to standby light on. Could it be the tube?


    Model number is TX-36PD30L from the operating instructions manual. No spaces

  • gejkelly Jan 18, 2009

    Have tried the suggestion of unplugging and holding the power button in for 30 secs.

  • gejkelly Jan 18, 2009

    Thanks for the advice. I would not try what you are suggesting so it sounds like it needs to go for a repair. Is there anything else I could try short of getting it repaired? No easy fix or reset button? Its a monster to move anywhere.

  • gejkelly Jan 18, 2009

    Ok. Thanks to others as well

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You might go ahead and call a repair man...trying all sorts of things people suggest will drive you nuts...it could be the main board or a simple circuit or a tube..its hard to say on here what the problem actually is

Posted on Jan 18, 2009

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Due to fluctuation in voltage, it seems that few IC's might have blown.........

Its all of circuit board.......


If u wish u may call a repairman or if u wish i wld love to provide u how to change that Ic.....



Take Care.

Do rate this solution..............

Posted on Jan 18, 2009

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Change power cable then if rpoblem occurs change your power suply .then if problem remains some circui fault u have to take to the service shop is btter way.
thnaks

Posted on Jan 18, 2009

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Hi and welcome to FixYa,

For some reason, as CRTN has posted, Panasonic TX-36PD30L does not appear among the Panasonic models of TVs. Still applying some basic troubleshooting would require that:

  • opening the unit;
  • perform voltage measurements, determine faulty component and subsequent part(s) replacement;
  • fair familiarity of electronic components/circuitry and safety procedures, use of a DVM and a soldering iron ;
  • access to a service manual or at the very least a schematic diagram with voltage readings.
Initial focus would be on the power supply:
  • most likely the fuse is not blown, you still have the red light on;
  • this indicates that the +5VDC standby B+ is active, power is getting inside and at least one parts of the PSU is operational;
  • "attempts to start up but then goes back into standby mode" indicates the unit is auto-protecting, the built-in diagnostics has sensed a fault and protects the unit from turning on to prevent further damage to the circuitry;
  • once the power supply is accessed, determine and remove the connector to the mains B+ (roughly 150VDC +/-);
  • if the power supply turns on, then problem is on the main board;
  • if power supply does not turn on, then problem is in the power supply itself;
  • if the problem is on the main board, then procedures would be the same. Remove B+ connection to major components to determine if they are causing the fault. Among the 1st to be tested would be the HOT (horizontal output transistor). This would be a big transistor attached to a heatsink very near the FBT (flyback transformer);
  • thereafter, all major components have to be checked.
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.

Pls post back result(s). Good luck and Thank you for using FixYa.

Posted on Jan 18, 2009

  • Louie  Role
    Louie Role Jan 18, 2009

    Unfortunately, no buttons/key pressing fix; this is a hardware problem and offhand would require replacement of components. Perhaps an initial check-up by a qualified professional for an estimate/quotation would be in order. Based on that your decision for repairs could be made.

    If the cost of repairs and downtime would be factored in, then you may have to re-evaluate your options and consider a replacement.

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Hi might be some picture tube problem.

Posted on Jan 18, 2009

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Unplug Then Hold Power On/Off For 30 Seconds Then Release And Plug It Back In.

Posted on Jan 18, 2009

  • Michael Fisher
    Michael Fisher Jan 18, 2009

    Also What Is The Exact Model Number? The One You Gave Has No Information Please Include Spaces And Everything.

  • Michael Fisher
    Michael Fisher Jan 18, 2009

    One More Thing You Can Try When Powering On Hold The On/Off Button The Unit Should Beep Then Release.

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