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My Twchnics SU-Z900 stereo integrated amp won't produce sound. I've checked the speakers on another stereo and they're fine. Is this able to be fixed?

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Hi colinthomson,

Yes this is fixable. The caused of this problem is the output IC which was gone bad(open/shorted). This IC(mounted in heat sink) is responsible for producing sound output feeding to the speakers. Most of the time this is accompany of open fusible resistor in line with the power supply. If you don't have necessary tools and test instrument and can't troubleshoot it yourself, I would advice you to look for a qualified technician or send it to your local repair shop to isolate the problem.

Hope I helped you.
Have a nice day!
Thanks for using Fixya.

Posted on Mar 20, 2011

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