Replaced the belt on this deck (after spending well over an hour cleaning out the tar-like goo that the old one had gone to). Completely cleaned the head, trip-sensor & capstan w/ Q-tips & alcohol. Great, deck worked fine for about a week, but has now developed an annoying flutter (speed-variation) problem. Doesn't matter which cartridge I play, happens w/ them all. So, after looking at the rather-spartan service manual, I put a voltmeter across the motor to check for variations. The manual states that there should be 20VDC across it. Running it w/o the belt, it shows a steady 21.2V (so, no-load). But when I run a tape, I notice the meter changes a few tenths-of-volt whenever the speed varies (so w/ load, since I can cause the same under no-load by pressing down on the pulley). Which makes me wonder if the capstan needs a clean-out of old grease at its bearing. Would love to, but there's an E-clip
*under* the flywheel the holds the whole assembly in place. Would love to know -- how-in-hell -- I'd remove that E-clip (the service manual gives no such information)? Anyhow, if anyone has worked on this or a similar Sony model (TC-228, 258, etc), could you please provide some insight?- posted
8 years ago