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Technics su-2780 shuts of after playing for about 15 minutes of use what do you trhink is the problem

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Hiya not familiar with the amp but sounds alot like it could be thermal. Does the amp have a fan?? Take the cover off and see if there is and whether the fan comes on. If there is no fan, check to see how hot it is getting at around 1/3rd volume. You shoul be able to touch the sink, it will be warm but not untouchable. If it is really hot, you will have to take it in as there is an output fault.
Lastly could also be dry joints (loose solder). By tapping around the board with something like back a screw driver would tell. Best of luck

Posted on Jul 14, 2009

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Posted on Jan 02, 2017

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