Question about Technics SUV500 2-Channel Amplifier

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Technics SU-V98 No Sound

Hello there, I recently bought a Technics SU-V98 model. I plugged the audio cords in the back and select VCR1 and No Sound.

The Amp is not even picking it up, But when I run a cable from my computer into Aux In, It works just fine aslong as I control it on my computer. The Fuse is fine. Just not picking anything up. Any Ideas?

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  • Nathan B
    Nathan B Feb 06, 2009

    Its not just VCR1, its all of them. Once I plug my computer into the aux in, The little bars come up on the display in the front, and shows there is sound. When i plug the RCA cables into anything else, it just doesnt pick it up. All the Channels dont work.

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  • 4,234 Answers

If I understand your posting correctly, the amp works using the Aux In connectors but not using the VCR1 even when VCR1 is selected correct? If that is the case, there is an internal electronic switching IC (TA9263 I think) that may be defective. This is not a complex repair and can be confirmed easily by any shop that does audio repair. They will trace the incoming signal with an oscilloscope to the IC and see nothing come out when VCR1 is selected. The IC costs less than $10.

Dan

Posted on Feb 06, 2009

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