8th Aug 2022, 6:21 pm
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#21
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Tetrode
Join Date: Dec 2021
Location: Newcastle Under Lyme, Staffordshire, UK.
Posts: 84
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Re: Sony TC-645 1/4 Track R2R Erase Head & Issues
So far I have ... - Cleaned all the mechanisms, and freed any joints.
- Switch cleaned all with Servisol Super 10 (and a cheaper equivalent)
- Removed the motor-to-flywheel idler, rolled it on grit paper, cleaned, then applied Rubber Renue. I may re-do this again later - but the improvement is already noticeable. Much less 'rumble'.
- Cleaned and vacuumed the entire deck, including the main audio board - the latter was very dusty.
- Recapped - all circuit boards, inc PSU. No previous work has been done to this deck.
- Will later - replace all transistors on the audio board, and may later re-fit new transistors and zener diode in the PSU.
- Removed rotted sponge materials, will replace later.
- Take up brake is weak - will look into that later. I have to manually apply a 'brake' when in RW mode.
- Probably there are some other things I've forgotten to list? .....
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