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Toshiba 51h83 - Dreaded blinking red power light    
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Xcrewchief



Joined: 15 Sep 2009
Posts: 5
Location: West Virginia

PostPosted: Tue Sep 15, 2009 2:15 pm    Post subject: Toshiba 51h83 - Dreaded blinking red power light Reply with quote

Help please. Just got a Toshiba 51h83 from a buddy of mine for nothing. (Yes, I knew it didn't work Smile ) When you plug it in, you can hear an audible click from the area of the power supply, and also can hear a 'bump' on the speakers and what SOUNDS like a regular t.v. screen starting to power up (the 'static' sound, as I call it). When you then push the power butten on the front or the remote, you get the blinking red light of doom.
The previous owner attempted to replace 2 small parts inside the unit, stating that he thought he had a convergence problem. He attempted to solder them in (or so he says), but they had absolutely no solder on them. Now I've soldered them so that isn't the problem.
Any help you fine folks could give me would be appreciated, and I can try to give you more info if you need it.
Thanks
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JTS1957



Joined: 21 Jan 2009
Posts: 2395
Location: Far, Far Away

PostPosted: Tue Sep 15, 2009 2:34 pm    Post subject: Reply with quote

xcrewchief wrote:
He attempted to solder them in (or so he says), but they had absolutely no solder on them. Now I've soldered them so that isn't the problem.


Without "assuming"... What's in it? The Replacements or the Originals? Wink
Xcrewchief



Joined: 15 Sep 2009
Posts: 5
Location: West Virginia

PostPosted: Tue Sep 15, 2009 4:47 pm    Post subject: Reply with quote

The replacements. He gave me the original parts that he removed.
Xcrewchief



Joined: 15 Sep 2009
Posts: 5
Location: West Virginia

PostPosted: Thu Sep 17, 2009 8:58 am    Post subject: Reply with quote

I think they are called I/C modules
kuhurdler



Joined: 28 Dec 2006
Posts: 2879
Location: Overland Park, KS

PostPosted: Thu Sep 17, 2009 9:56 am    Post subject: Reply with quote

Hard to say when you come across one of these where they used a golden screwdriver.

all the normal failures are kind of out the window. I do know if those chips were used without being attached to a heatsink, they are probably dead again.
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Xcrewchief



Joined: 15 Sep 2009
Posts: 5
Location: West Virginia

PostPosted: Thu Sep 17, 2009 12:18 pm    Post subject: Reply with quote

Well, evidently he knew enough to put the sinks back on and use thermal putty. I have pulled out the PD1147 board that they were attached to, and have since located a crack in the board where it appears that he tried to lift the board out and left a screw in.
I also checked connections on the power supply board and then pulled it to see if there was anything burnt.
Again, it sounds like there is power getting to that board, but am really unsure about how to check if there is power getting to the other areas of the set, other than just pulling out my multimeter and probing (hopefully out of high-voltage areas).
Thanks again for any help.
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