Question about Harman Kardon AVR 230 Receiver
My Harmon Kardon receiver is an older model as I've had it for at least 6 years. Don't know model number as I'm not at home. Anyway, most the tuner will play for about 10 minutes, then it cuts off and displays the work "Protect" on the screen. Puzzled? Don't have the manual as I bought it from a friend, and I haven't really messed with much because I don't want to screw something up.
The protect light comes on when the amp cuts off the speakers to protect them from damage if something's wrong in the amp, or to protect the amp from speaker or wiring problems. If the amp plays for a while before cutting off, it's probably a thermal problem in the output stages. One of the output devices may be acting up as it heats up, or it could be bad connections that open up because of the heat. The trouble might also be caused by components in the power supply as well. Without having the unit on the service bench to check it, it's not possible to suggest specific things to look at. The manual wouldn't help you other than to say check your speaker connections and then have it serviced. The best thing to do if you want to keep this is to find a servicer in your area and get an estimate for the repair. Or if you or a friend is technically inclined, look into purchasing a service manual and see if you can do-it-yourself.
Posted on Apr 23, 2009
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Posted on Jan 02, 2017
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