Nakamichi SR-4 not powering up - diyAudio
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Old 25th May 2009, 03:34 PM   #1
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Join Date: Apr 2009
Default Nakamichi SR-4 not powering up

I have a old Nakamichi SR-4 that has this problem off not powering up. I've sent it for repair, and the occurence seem be lessen, but still happens occasionally.

When this happens, the power led will blink and the amp will refuse to power up. I read that alot of these Naks have the same problem because of the output transistors.

Can anyone enlighten me on this?

And does anyone have, or know where to download a copy of the service manual for this model?

Thanks in advance.
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Old 26th May 2009, 11:15 AM   #2
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Join Date: Apr 2009
anyone help?
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Old 26th May 2009, 01:30 PM   #3
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east electronics's Avatar
Join Date: Jan 2006
Location: Athens GREECE
Default NO .....

magical soloution is going to be given by any forum member i think .....

are you any handy with electronics ????

could be tuning issue
could be small leak causing ofset in the out and that is trigering protection
could be a loose contact
could be a number of things ....

you have to apply the "basic procedures " are you any familiar with that ???? cause if not it is not really easy to do such a troubleshooting through emails or posting here ....

regards sakis
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