[TechAssist] Re: Mitsibishi VSA50 "convergence?"
- From: Doug Keller <dek@xxxxxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Tue, 02 Mar 2004 15:01:01 -0500
Crank up hendrix and pass the bong.
Doug Keller
Wis-Kel Electronics
101 Freeland Ave.
Terra Alta, WV
USA 26764
dek@xxxxxxxxxxxxxx
http://www.tech-assist.org
"Learn from the mistakes of others, because you
won't live long enough to make them all yourself"
Wayne Vanaman wrote:
>I have a Mitsibishi VSA50 HD PTV that looks as if it has a convergence
>problem. I have
>the manual, replaced the convergence ICs. I don't know how to explain what
>I see.. It looks as if the lines/dots are crawling, like waveforms out of
>phase, or a lissajous pattern.
>
>Here are two pictures:
>
>www.pensacolatvrepair.com/images/IMAG0036.JPG 327K Window Circle.
>
>www.pensacolatvrepair.com/images/IMAG0038.JPG 517K Crosshatch
>
>The video output on the back is good, this anomoly is in all modes, all
>inputs, cable, video, HD, everywhere.
>I thought the waveforms might be power supply ripple, but the power supplies
>all seem to be good. Scopeing the vertical or horizontal while syncing to
>the generator looks as if the set is in sync vertical and horizontal.
>
>
>Wayne Vanaman
>Omega Electronics
>6904 W Fairfield Dr
>Pensacola, Fl. 32506-3310
>
>Wayne@xxxxxxxxxxxxxxxxxxxxx
>WWW.PensacolaTVRepair.Com
>
>850-456-5995 voice
>850-458-6369 fax
>
>
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