Question about Audio Players & Recorders
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Posted on Jan 02, 2017
SOURCE: Kenwood KR V8080 receiver
if you sent 110v down the speaker wires & into the amp you most likely have damaged the audio outputs or the output ic. Look for a big aluminum heatsing & on one side you may find 1 or 2 ic's or numerous transistors, the ic's are hard to check, the transistors are easier to check, if transistors replace in pairs. also check for burnt /open resistors near outputs
Posted on Nov 02, 2006
SOURCE: unit wont turn on
The board you are looking at is the standby cct and power switching PCB. It sounds like that is working, so you have probably lost power to the transformer primary or the transformer is open circuit. Check for blown fuses and replace with exact same type and rating.
Be sure to unplug at the wall before touching any internals!!
If you can find no blown fuses, the power transformer may have failed. Good luck, get back to me here is you need any more advice. Thanks for using "FixYa"
Posted on Feb 18, 2008
The unit is in what is commonly known as "protect" mode. This means that a problem has been detected in the final output stage of the amp and the outputs are shutdown to prevent further damage to either the receiver or speakers. This should not be a difficult repair for a service shop. Expect a parts cost in the $25-$40 range. Add in the local labor rate for the total repair cost.
Posted on Nov 28, 2008
SOURCE: NAD 7140
The clicking is the sound of a bad relay. A relay is an electrical switch that opens and closes under the control of another electrical circuit. There is no user solution for this. You'll have to take it to an electronics repair shop (~$150) or dump the whole unit.
Posted on Dec 19, 2008
It sounds like a problem with the power supply. You might be able to find a place that can fix it, but I don't know for sure. It also could be a broken solder joint in the power supply.
Posted on Jan 12, 2009
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