Question about Panasonic DMR-E85H DVD Recorder

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I own a panasonic dmr-e85hp

When its plug in i hav no power to unit can u help

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  • tt7099 Sep 25, 2008

    its not the fuse what know

  • tt7099 Sep 25, 2008

    one of ur experts told me to check the fuse when i plug it in before i got nothin no power so still have no power and its plug in what next

  • tt7099 Sep 25, 2008

    i open it up and the power supply is not damaged and i have plug it into another outlet still has no power

  • tt7099 Sep 25, 2008

    it is very live and flowin with juice

  • tt7099 Sep 25, 2008

    its not the power cord

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7 Answers

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I just fixed my unit. Remove the hard drive cage and look at the circuit board underneath. Look carefully at the capacitors - if you see any brown residue on top of the capacitors or they appear to be bulging they've failed. On my unit all four 680 uF caps were bad. I bought replacement parts from www.mcm.com (make sure you get the 16V, low ESR variety). Replacing all four of these bulging caps brought my unit back to life.

Removing the board to swap these out isn't difficult - just take your time and make sure you get all the connectors unplugged. Re-connect electrically before re-testing - these "chopper" type power supplies can self destruct of not tied to a load of some sort.

Posted on Jan 30, 2009

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  • Expert
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TRY TO CHECK ALL THE POSSIBLE CONNECTIONS THAT MAY CAUSE THIS PROBLEM. IF YOU ALREADY CHECK THE PSUPPLY AND THE FUSES, AND ALSO CHECK THE OUTLET IF IT HAS A POWER AND ALSO THE POWER CORD.

SECOND IS TRY TO CHECK THE PSUPPLY TRANSFORMER AND RESISTOR. THIS CAN BE POSSIBLE IF YOUR UNIT NEVER GENERATE A POWER INTO THE MAIN BOARD.

Posted on Sep 25, 2008

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  • Master
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Hi,

Symptoms shows its failure of Power Transformer. You need to replace it.

Transformer part number and price is as follows..

G4D2A0000179 TRANSFORMER 9.32

Its available at Panasonice Parts

Good luck.

Posted on Sep 25, 2008

  • Shahid Electronics
    Shahid Electronics Sep 25, 2008

    Or you can buy Power Supply at Panasonic Parts with part number as follows..







    VEP01950B
    POWER SUPPLY PCB
    73.09



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  • Master
  • 4,234 Answers

These units use a switch mode power supply. These are not the easiest to repair, but tend to have some fairly common faults. The most common are the following 2:

1) The main transistor attached to the heatsink is shorted. This usually causes the main fuse to blow, so I don;t think that this is your problem.

2) These power supplioes require oscillation and on the primary side of the supply, you should see 2 capacitors with a voltage rating in the 200V range. One will be 80-200Ufd and the other will be in the 22ufd range. Try changing the 22ufd cap. This is the "kicker" that starts the oscillation. This is a common failure part.

If neither of the above resolve the problem, please update this and I'll try to give you a few more options.

Dan

Posted on Sep 25, 2008

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  • Master
  • 1,894 Answers

You got only two options

either no supply from plug point.-- confirm it by plugging the unit in another point.

else damaged power board- confirm it by opening the unit from back side. power board can be found the the place where the power cord enters

Posted on Sep 25, 2008

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  • dewan nafees ahmed Sep 25, 2008

    dont you see any components of the power board damaged?? please take a meter and check if any of the components are dead in the power board

  • dewan nafees ahmed Sep 25, 2008

    what do you mean by "it is very live and flowin with juice""???

  • dewan nafees ahmed Sep 25, 2008

    if its not power cord it must be some component in the power board which is dead and not allowing power to enter in.
    few cases they are visible easily by burns or bulges.

    few cases they just die with out leaving any clues.

    on those case you can only get them out by checking each and every component.


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  • 558 Answers

Hi,

Thanks for posting in FixYa.

May I know since when this problem arised.

Please check the cable and adapter if connected any, also check the connector of the DVD recorder.

Let me know if this works.

Regards
Ellin

Posted on Sep 25, 2008

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  • Panasonic Master
  • 13,433 Answers

Possibly a bown fuse. Please check that first, got warranty on it?

Posted on Sep 25, 2008

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