Question about Harman Kardon AVR 340 Receiver
Hi and welcome to the site,
Almost always, the described symptoms of the HK AVR340 indicates that it has kicked into auto-protect mode. While this is a power supply action, it is triggered by the logic controller that has sensed a fault and halted the system to prevent further damage.
The only easy user doable try of a fix is to check the speakers and their wires. Ensure that the speakers are within specs, no stray strand touching its opposite, no frayed wires and are connected correctly to the rear of the HK. All others require that the AVR340 be opened up to effect repairs.
Options then are:
Are you considering a DIY?
Good luck and thank you for asking.
Posted on Jul 31, 2010
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Posted on Jan 02, 2017
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