Had the same problem. There is an alignment procedure in the service manual, which may work. Also try carefully cleaning the lens. No problems since doing this about 2 years ago. -Stephen
To clean the lens you have to open up the case & unscrew an access plate then carefully use a q-tip on the lens. I've read that there is a commercial lens cleaner in the form of a cd type disk that will clean the lens. Check threads on this forum or audio asylum on dan wright for more info. I don't rememmber the exact steps since its been a couple of years ago.
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