Question about Mitsubishi WS-65809 65" Rear Projection Television

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Convergence problem? I recently bought a 65 inch mitsubishi projection tv and it shows the menu a little blurry, but is readable. The background, however shows vertical lines. they almost disapear with the rgb adjustments under the tv, but i cannot get the menu looking perfect. In addition to that, i get hardly any change or response when connecting an av component (360), only a little added fuzz in the background. the menu is unaffected by the lines which makes me think its not a bulb problem? I only paid 60 bucks for the tv so i want to fix it. PLEASE HELP!!!

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Re: convergence problem?

The menu is in green, so of course you won't see any convergence problems with only 1 color on the screen.

Go in and find the conv ICs, they will be mounted on a
big heatsink and the wires going to the conv yokes will
most likely plug in somewhere closeby.
Conv ICs are the workhorse of the CRT RPTV, and it is
not unusual at all for them to need to be changed out
at some time in the life of a CRT RPTV.

Mr Bob

Comment by MrBob84, posted on Feb 04, 2008
PS -
The wires for the conv yokes at the CRT necks are the
thin ones. The thicker ones are for the hor and vert
sweeps, which must never be disconnected from their
circuitry during
CRT operation.
If your beam loses sweep on any of the CRTs, it will
instantly score/gouge your phosphors on your CRT faces,
vaporizing the phosphors there and ruining the CRTs.
The beam is very powerful, but in normal operation
moves incredibly fast, not damaging anything. Any
slowdown of the movement of the very powerful beam that
draws the picture, acts like the searing vaporizing beam in Tom Cruise's War of the Worlds.

Posted on Feb 04, 2008

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Re: convergence problem?


Posted on Jan 10, 2008

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