Toshiba 57H81 Flashing Red Power Light, No Picture/Sound, Blown Fuses F850 + F852

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TommyTester
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dwalkinking - 4 emails sent.

dwalkinking - 4 emails sent. Let us know if you are successful. Tommy Tester

TommyTester
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Evil (Moderator) - If you

Evil (Moderator) - If you want to send me your email I will forward CD, Board Layouts, etc and you can look it up. Blessings. Tommy

Buddyro
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Hi Tommy,

Hi Tommy,
Fixed my set 2 years ago using this info. After fixing it hd programming works perfect. But, when i use any other picture soure on the tv i get two thin verticle lines on the screen that are equally spaced. the tv plays the program, but these lines are super imposed over the picture dividing the screen into three sections. there are also some horizontal lines in the picture too. This happens after the set has been on approx. 30 min. and of course not using the hd1 picture source. Is it possible that a wire or something was placed to close to a heat source after the repair and is causing this problem?
Dash

TommyTester
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Dash (Buddyro): Unfortunately

Dash (Buddyro): Unfortunately I don't have any additional insight on that.

I had to repair my set twice. First repair lasted six months. The second time I added jumper wires to either side of C809 / C810 as the solder joints had to be resoldered. For the past few years I have been dealing with a perfect triangle of the three primary color dots in the middle of the screen. Set has been otherwise fine for quite some time. However in last six months the auto focus fails. Still putting up with set. Quality of picture matches by declining eyesight. LOL

Sorry I can't offer more on this.

manstoblame
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my looks like these

my looks like these projection sets all have the same general problems. I have the 42 inch Toshiba 42h83 and when changing out capacitors on hyper board something shorted I believe its a voltage regulator,and blew the out put transistor not sure. But would you have that service manual I need the schematics for the hyper module MVPU14 is that included in the 57h81 service docs if so would you help me too? by sending to manstoblame@gmail.com or manstoblame@yahoo.com any help you can offer is appreciated. Oh and by the way do mitsubichi and sony have similar parts to toshiba? probably a dumb question but thanks in advance anyway

TommyTester
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Manstoblame: Sorry but I don

Manstoblame: Sorry but I don't think my manuals have that MVPU14.
NEXT HYPER (Advanced HYPER Board)is included in the 50H81 Circuit Diagram.

Not trying to pass myself off as the expert on this Toshiba set. Just sharing the research and repairs that I made for a common problem (blinking red light) affecting many 50H81/57H81/65H81 sets. Sorry I can be more help. I have uploaded all my manuals to the TechLore Technicians Corner. They should be available for download soon. Sorry I can't be of more help. Good luck.

TommyTester
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Are you looking for the

Are you looking for the Toshiba manuals that I have emailed many in the past? I just uploaded them to the TECHLORE Technican's Corner (2-1-2011) and they should be posted for download in a few days.
Toshiba 50H81 Service Manual
Toshiba 57H81 Service Manual Supplement
Toshiba 50H81 (also 57H81 / 65H81) Circuit Diagrams
Toshiba 57H81 Disassembly Photos
Toshiba Rear Projection Digital Convergence Alignment Technical Training

TommyTester
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Good news for both you and me

Good news for both you and me! All of the service manuals, circuit diagrams, disassembly photos, etc have been updloaded to Technician's Corner. I will place the links here. As always please continue to share your experiences repairing the infamous Toshiba flashing red light problem.

Good luck! Tommy Tester

Here are the specific links:

http://www.techlore.com/download/31104/Toshiba-57H81-Digital-Convergence/
http://www.techlore.com/download/31103/Toshiba-57H81-Disassembly-Photos/
http://www.techlore.com/download/31102/Toshiba-50H81-Circuit-Diagrams/
http://www.techlore.com/download/31101/Toshiba-57H81-Service-Manual-Supp...
http://www.techlore.com/download/31100/Toshiba-50H81-Service-Manual/

The entire download section can be found at: http://www.techlore.com/group/2/list_downloads

GeneJohn
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Does the PD0074 board need to

Does the PD0074 board need to be removed to correct blow fuses F850 an F852? If so what is the sequence for removing this board?
Gene

GeneJohn
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Tommy Tester

Tommy Tester
On the Toshiba 57H81 how do you remove the PD0074 board to replace or rewire fuses F850 and F852?
Gene
p337gene@gmail.com

TommyTester
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Gene,

Gene,

Links to everything including disassembly pictures, etc are posted earlier in this thread. Please go back to the post dated

February 1, 2011 5:55 PM
and go from there.

Good luck,
Tommy

Pankaj Mody
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I have problem with Toshiba

I have problem with Toshiba 57H81 Red light blink problem. Please send me the Toshiba manual which shows location of the fuses. My email ID is pymody@gmail.com

Pankaj Mody
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I have the same blinking

I have the same blinking power light on my 57h81,have not opened up tv yet but being a petroleum tech. I sure with these insturctions I can fix the problem It would be great if you could send me the service manual it would be greatly appreciated modypy@gmail.com

TommyTester
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Links to everything including

Links to everything including disassembly pictures, circuit diagrams, etc are posted earlier in this thread. Please go back to the post dated

February 1, 2011 5:55 PM
and go from there.

Good luck,
Tommy

rwgage
rwgage's picture
I am having the similar power
I am having the similar power supply problem with my Toshiba 57H81 so I wanted to know if doing the soldering fix  stated fiuxes the problem. Namely replacing the C-809 and C-810 capacitors as well as fuses F-850 and f-852..    Thanks,   Robert
soyboy22
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Hi Tommy,
Hi Tommy, I'm having the same problem.  Please forward me anything you can so I can make the repair. Thanks, Scott.

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