Question about Toshiba 61HX70 61" Rear Projection Television

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61g9uxc Toshiba Rear Projection Convergence Problem

I have a Toshiba 61in TV which blew the power supply. No the power supply is fixed but the convergence has a problem. All the colors are mixed but sound is ok. When you connect the ATT connector from the tuner to the AV Board at the back it goes balnk, only OSD is visible. When you disconnect it it is fine but with the convergence problem.

When I connect it to my Sony DVD Player, it shows clearly but RED on the top left corner spills off. On TV Mode, via the Tuner or from the VCR or even the Rasta, really mixes the colors. What could be the problem or where should I ask my Tech to check?

The Convergence board is part no 23148300A model CM55P17HA and tv model is 61g9uxc

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Re: 61g9uxc Toshiba Rear Projection Convergence Problem

Don't replace the convergence board, but take it in and have the convergence amps replaced. That unit takes two stk392-110 IC's and are fairly inexpensive compared to replacing the entire module. In fact, ask to have them replaced with a more reliable stk392-150's...

Posted on Nov 05, 2007

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Something is preventing the power supply from operating:
Possible causes in order of likelihood:
1) Convergence amps failed overloading the supply (See if you can disconnect them)
2) High Voltage circuit has died. (Right on schedule since your TV is 10 years old)
3) One of the CRTs has shorted
4) The power supply itself has died (Is there a lot of dust covering it?)
See if you can isolate the failure by working down the list.
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