Question about Toshiba TheaterWide 52HM94 52" Rear Projection HDTV

4 Answers

Toshiba 52HM94 no power

At front panel green light is on and the red is blinking, color wheel not moving

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  • George Santel Nov 14, 2008

    red light blinks as long as the unit has power, by the way I am a tech. but I don't have much experience with this set and I thought that you have access to a service manual so I can read some voltages coming out of the power pcb. Hope you can help me, George

  • George Santel Nov 15, 2008

    Toshiba 52HM94 Green light on and the red blinking (constantly) no power at all.
    I am a tech. and suspect a power supply problem
    unless there is a typical problem with this sets.
    No schematics. Help please!!!

  • George Santel Nov 17, 2008

    They only list owner manuals (Not sarvice manuals)
    santel


  • George Santel Nov 19, 2008

    Hi there, in reference to this problem... my son
    told me to check in the service manual!!!!
    Is not right to pay for someone to tell me to check for voltages in the service manual!!!!
    I thought you can give an idea or a tip to solve
    this problem.. Thanks, Santel

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4 Answers

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  • 449 Answers

Hi!!!

unscrew then check the pcb with a tester
or check the power supply and all the wire

find the parts here
http://www.partstore.com/GetModel.aspx?MfgName=Toshiba&BrandName=Toshiba&ModelNumber=52HM95&SortBy=brandname&sortdirection=asc&page=8

Posted on Nov 19, 2008

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  • Master
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HI This unit has not only problems with the convergence amps but the digital convergence board as well - this is one I would clearly recommend you take in for servicing as opposed to trying the repair yourself... It could be either that's faulty and some elaborate testing with a scope will confirm the failure.
Also, let the tech know that the correct part number for that digital convergence board is: 23786715 (Pd0078d) and to refer to Toshiba's technical bulletins Tv200301 and Tv200301 for further info. This will save them some grief if it does turn out to be the dc board because the part number in the service manual is not correct.
Bill

Posted on Nov 15, 2008

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  • 685 Answers

Toshiba Projection TV Manuals here is the manual site
i hope this helps you

Posted on Nov 15, 2008

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  • 6,966 Answers

Hi,

Initially, the front panel green light indicates that there is power coming into the system; standby light or the red light flashing indicating that the unit has switched to protection mode., the unit in its self diagnosis has detected a fault. In order not to extend the damage, the unit prevents itself from turning on. Eventually the unit has to be opened up for a look and see. 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 or claim warranty repair.

Incidentally, in the hope that this is a simple glitch, perhaps you can try unplugging from the mains and removing all connectors. After an extended period, reconnect and verify connections and try again.

Additionally, was there anything out of the ordinary prior to the incident such as power failure/interruptions, thunderstorm, TV used for an extended period of time, the remotes has been inadvertently played with, or anything noteworthy.

Hope this be of initial help/idea. Pls post back how many times the flash/blinks, back how things turned up or should you need additional information. Good luck and kind regards. Thank you for using FixYa.

Posted on Nov 14, 2008

  • Louie  Role
    Louie Role Nov 14, 2008

    Welcome to the site George and appreciate the quick reply.

    Initially, to my knowledge, the color wheel would only turn if and when the set has powered up correctly. Often, the problem with them would be noisy operation and/or mechanically stuck hence they will not turn.

    Unfortunately but for the moment, what readily comes to mind would be this service manual for a 52HM85. Here is to hoping it would be nearly identical or at the very least give you the general idea. http://www.eserviceinfo.com/downloadsm/2...

    Would try to source some more. Cheers.


  • Louie  Role
    Louie Role Nov 15, 2008

    Hi again,

    Any development(s) so far? Were you able to cross reference the service manual for a 52HM85?

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