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Technics SA-GX500 My old Technics SA-GX500 is experiencing some old age ailments. I've had the unit for a while and would love to save it if I can. The problem I'm having is this. I turn on the unit and it powers up fine. After some time (this time varies but is about 10 minutes), the power just shuts down. I try cycling the power but it won't come on right away. If I wait a day and try it again, it will power up but again, it will shut down by itself. Any ideas on what's causing this?

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Anonymous

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It looks like overheating problem. Dust fills heatsreader of amplifier.

Posted on Aug 19, 2008

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Technics SA GX500 sound went out while in operation. Checked all buttons, opened and the three fuses I found inside are intact. Any ideas?


Apart from the fuses what you have mentioned there could be small Relay to prevent both thermal as well power related problems apart from that the DSP and its support circuitry could have conked off . look for small PCB mount chip fuses near and around the DSP and a discrete Micro if it is present

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the service manual http://www.hifiengine.com/hfe_downloads/index.php?technics/technics_sa-500_service.pdf

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