fix a fuzzy Sony 7220 Crt - AVS Forum
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post #1 of 2 Old 10-21-2011, 10:34 PM - Thread Starter
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I have a Sony 6' Projection I bought brand new 25 years ago it worked great but when it stoped dead I took it to be repaired and was told it needed a power transformer board ( not true I discoverd) after it's return it was never as sharp as before ! I'm sure he screwed something up somehow.
It does get a little better after an hour or so but not as great as it was.
Does anybody have copies of the service manual so I can tell what does what under the hood ?

Thanks for any help with this.....
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post #2 of 2 Old 10-28-2011, 10:49 AM
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On those old models you have to adjust the focus block and the G2 after the transformer is replaced

The tech was just lazy

Greg

www.eisemann-theater.com

Gregory C. Eisemann Senior Electrical Engineer, Satcom Engineer, Opnet Engineer, Network Engineering, Satellite Engineering
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