Mitsubishi WS-65807 65" Rear Projection Television Logo

Question about Mitsubishi WS-65807 65" Rear Projection Television

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WS65807 I have a 65807 and need to know where two wires go. In the back of the set there is a small chip board that says 'Pre-Amp'. There are about 5 different wire coming from this board and all but two are connected. The two that are not are brown in color. They are connected at the 'Pre-Amp' but not at the other end...They appear to be have been pulled from a plug but I can't find any empty on the main boards. The set seems to be working just fine but these two way-ward wires have got to have a home somewhere!!! Please Help....Thanks..

Posted by Les Haffner on


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They may be for a different model with different features. many of these circuit boards are in many different models by many different manufacturers. If you want more info on the board find the serial number and the manufacturer on it and type it into google or similar - you might get lucky if it is a common board. If the set works fine then tie the loose wires out of the way, put the cover back on and watch the front. hope this helps :)

Posted on Mar 10, 2007


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check all the wire connections
Aug 31, 2008 • Music

Car amps

I think the originals may have been IR21844S. I've been using the IRS21844S and they have worked well.

The un-connected pads lift relatively easily on these boards. If you want to avoid lifting those pads and you have a soldering iron with a temperature control, use ChipQuik solder alloy to remove the ICs. Set the iron to ~450F as a starting point. Increase the temperature slightly if necessary.

If the amp has vertically mounted outputs, be careful when you reinstall them. The holes typically have a fair amount of slack. If the transistor isn't positioned correctly when it's soldered in, it will be too far from the sink and will not be able to mate (thermally) to the sink (the clamps aren't strong enough. If they are too close to the sink, they will rip the insulators when you slide the board back into the sink.

Let me know if you have any other questions.
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