Question about Denon AVR-684 6.1 Channels Receiver
The unit more than likely has a fault in the power supply or the output stage. Common switching power supply problems are the FETs used for switching fail or the PWM generator fails. Output circuits can be configured many different ways. The trend these days is to use integrated high power amplifiers for each channel instead of discrete push pull amplifier stages.
Posted on Feb 11, 2010
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Posted on Jan 02, 2017
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