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In Reply to: RE: A-77 posted by 6bq5 on August 14, 2024 at 13:34:35
I have never done that, so I don't know how it would react to "gentle" application of power. I would just power it up, never had any issues with that.
Be aware that there is safety interlock - it will not work with the outer case removed.
Follow Ups:
Victor,
Thank you-
I understand that there are lots of electrolytic caps which, when old, respond better to gradual powering up, as opposed to plug it in, and turn it on...
however I could be wrong...
Happy Listening
However, if they are dry (which is possible) they will not re-form, and no matter how you apply the power they will simply blow the fuses. The large ones in the power supply are normally replaced when people go inside. But, OTOH, the A77 that I got powered up perfectly well and has been working since then, and that doesn't seem to be an unusual behavior. I only replaced the dreaded RIFA caps and the caps on the plug in boards.
The RIFA's you should just go ahead and replace before even applying the power, as they produce mess when they fail.
thanks-
sounds like I have some work ahead...
Happy Listening
...that my advice here is based on very limited experience. You would get a much better one from those who regularly work on such equipment. There are technicians who have seen scores of them, and you can get in touch with them by going on one of the reel-to-reel forums. They could give you more specific guidance.
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