Question about Mitsubishi WS-65907 65" Rear Projection Television

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Location of temperature sensor on Mitsubishi WS-65907

I have downloaded the tech layout from nodevice.com, but im not an engineer, so I am having trouble reading it. My unit gives the 1-2 light error (menu and input button pressing). I found that if I take off the front panels and place a fan in there the unit stays on for longer. I am wondering if there is a specific place inside that I can place a fan to cool a specific sensor that is malfunctioning, any help would be appreciated. [ben dake @ g mail . com] (no spaces)

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Bendake,
It's been a little over a month, since your post, hopefully you have your problem resolved. If not, perhaps I can help. I'll call my response a SWAG rather than a WAG, so I hope it's helpful to you. First of all, let me answer your question, I'm not aware of any temperature sensor in that model. Less than 2 months ago I got a WS-65907 with a power problem. When I turned the TV on, the green power on light would come on for a few seconds then it would go off. The problem was a couple of pico fuses (5amp) and the convergence IC's. One of the IC's was shorted and that's what was blowing the fuses. Anyway, the IC's run hot, they are on a large heatsink. You may be able to purchase some thermal paste from Radio Shack, etc and put it on the back of your IC to help dissipate the heat. It's good that you're getting a 1-2 error code which indicates no error detected. In my research on the Internet, I read that Mitsubishi didn't put enough of the themal compound on the back of the chips and that's what caused them to eventually go bad.
If you've removed the front panel (and you can see past the neck of the 3 tubes) you should be able to see the vicinity of the IC's. they are located on the Middle board, they are attached to a metal heat sink (approx 4"X 8") the IC chips have a narrow metal strip holding them onto the heat sink. You may also consider getting some freeze spray that can be put on electronics. It may be useful in determining if this is your problem area. If so, you may luck out by applying some paste to increase the thermal transfer and keep the chips running cooler. Good luck with your TV.

Posted on Mar 12, 2009

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Engine operation


A review of engine operation:

In order to function properly an engine requires mechanical integrity along with a combination of air, fuel and a well timed spark. Engine operation is governed by an Electronic (Power) Control Unit/Module (ECU/ECM/PCM)or Engine Management System (EMS) that receives signals from a variety of sensors and in turn supplies air, fuel and timing appropriately. To reduce the impact of engine emissions on the environment the ECU also operates a number of emission control actuators and these too are monitored by sensors
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For OBD code problems check the list of help links below. Click the link below to go through its procedure.

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Diagnostic Code P2195? http://schematicsdiagram.blogspot.in/2012/02/diagnostic-code-p2195-on-toyota-avalon.html

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OBD code P1330? http://technoanswers.blogspot.in/2012/02/obd-code-p1330-on-2003-kia-sorento.html

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http://schematicsdiagram.blogspot.com/2011/12/engine-misfire-codes-on-chevrolet.html

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http://repairhelpcenter.blogspot.com/2011/11/abs-trouble-codes-for-all-1994-00-acura.html

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I just replaced the 2 Convergence IC's now i have a bad pitcure


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SD TECH

Feb 02, 2010 | Mitsubishi WS-65907 65" Rear Projection...

1 Answer

Mitsubishi ws-65907 tv will not power on


one of the two pico fuses that protect the convergence chips this model uses is gone--see attached photo--

NEVER change just the fuses---if one of the two fuses is blown--the convergence chips got them-----

there are several ways to proceed from here-check the two fuses indicated in the photo and tell me if either or both are bad.

SD TECH

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Jan 03, 2010 | Mitsubishi WS-65907 65" Rear Projection...

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