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Re: speakers inop. on kenwood reciever
The speaker protection circuit sounds to be engaged. This protects you speakers form damage if a fault condition occurs inside the amp. Generally speaking, unless you have good experience at fault finding electronics, then this may be a job for a repair guy. If you want to know more about diagnosing the problem, get back to me here. Good luck :)
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Check the speaker wires maybe they have worked loose. And speakers themselves as they may blown. Do you have an amp if so check its fuse.
Also check for inoperative interior lights, lighter, and horn. One of these circuits will power the radio's memory circuit. Some radio models will appear to work normally but have no sound if the memory fuse is blown. The clue is the clock will reset to 12:00 each time you turn on the ignition switch.
A bit more information is needed but here is a couple of thing to try. If these are wireless then make sure the send/receive unit is properly seated. If these are amplified speakers (speaker has the amp built in) then check the fuse for them. If these are wired speakers then you need to check the connecters.
Could be a speaker wiring issue, defective speaker or possibly a speaker protection fuse inside the unit has blown.
1. Check speaker wires for proper connection. 2. Swap left and right speakers to see if the problem follows the speaker. 3. Check for internal speaker fuse that may have blown. PLEASE proceed with caution inside the unit. With the AC cord unplugged there are still high voltages resident inside...BE CAREFUL!!
Protect only comes on when an RCA is grounding out, speaker is blown or
the speaker wires are shorting out. Check all your wiring on the head unit and see if all are insulated with
tape or better and if there's an exposed wire, tape it up. Make sure
that all connections are secured. Then double-check your fuses. Check all of your speakers and their wiring because going into protect
mode is the units way of saying you have a problem with your speakers
If your speakers and wiring all check out, disconnect your radio wiring harness, and then reconnect the harness. This resets your radio, and your radio should be working again.
If you need to enter the security code, try the default unlock code of 5227.
You can also try to reset your code if the default doesn't work. Try 'KCAR' or '3051'.
Very possibly a problem with overdriving the speakers and the breaker inside the receiver is "popping" in order to protect the outputs from being fried. check the ohm rating of the receiver to the speakers and lok for damage to any of your speaker wires. also make sure the wires are not crossed or touching in the back connections to the equiptment.
You changed the fuses on the amp, but have you checked the fuse that is inline on the +12V wire? Most of the time, it's right near the battery terminal.
Do you have +12V at the amp's power terminals? If not, either your +12V or ground line has a break or disconnect.
Try taking a piece of wire and connecting it to both the remote connection of the amp and the +12V on the amp. This should cause the amp to turn on (if all is well). If not, the issue might be internal to the amp and would require professional repair.