Question about Ultra Linear UL-600HC Car Audio Amplifier

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It goes into protection mode - Ultra Linear UL-600HC Car Audio Amplifier

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Hi there
you will need to get a larger ground wire and it needs to be mounted to metal surface. this means you may have to scratch some paint in area where you will place the new ground wire (note do not add any other wires to this ground)
if that doesn't solve the problem than your settings may be to high on the amp but this sounds like a ground issue also make sure no fuses in amp are blown
hope this helps

Posted on Mar 06, 2009

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When volume goes high, the system goes in protection and relay's clik is heared


This is not the fault with remote control. Check the load connected to the device. If overload occurs, the device will itself go to protect mode. Disconnect speakers one by one and check which speaker box causes the system to go to protect mode, when volume is incresed. Check that speaker for short.

Apr 02, 2012 | Televison & Video

2 Answers

My Harmon kardon is stuck in protect mode


Disconnect all speaker connections and rca cables. Leave power, ground and remote wires intact. Try turning on again. If you still have a protection light your amp is faulty. Hopefully you have warranty. Double check all connections .A thumbs up would be greatly appreciated if this answer is helpful to you. Worth fixing.

Nov 19, 2011 | Harman Kardon Audio Players & Recorders

1 Answer

I have an Yamaha RXV440. It goes into protection mode instantly.


The Yamaha repair shop evidently couldn't find the failed component(s) and/or cold solder joints causing it to go into protection mode. Sony equipment has similar problems related to protection mode.

Mar 21, 2017 | Yamaha RX-V440 Receiver

1 Answer

It is on protected mode when i hit the reset button


Hi.

The unit goes on protected mode when an internal fault is detected.

Try disconnecting the battery cable for five minutes . If there is no fault you will clear protected mode.

If the unit still goes on protect, then check the wiring at the back, a short in there can trigger protectedd mode. If that does not work, then there is an internal fault. In that case the unit must be disassembled and tested.

Regards.

Mar 23, 2010 | Kenwood KDC-X492 Car CD/ MP3 Player

1 Answer

My denon avr1200 receiver once it is turned on goes into Protection mode. How do you reset or make work?


The reciever will go into protection mode when there is a short in the speaker wires or the amplifier was overloaded. What I would do first is verify that none of the speaker wire connections are loose at the back of the reciever or at each speaker. And verify that none of the wires are making contact with each other. Then label each speaker wire as you remove them from the reciever so you can re-install them correctly. After you have disconnected the speaker wires try unplugging the reciever for 10 to 15 minutes. Most recievers have a self-resetting overload protection switch and this should reset it back to normal. Now try plugging the reciever back in and turn it on without the speaker wires connected. It should be out of protection mode now. If it is still in protection mode verify that there is not a reset switch somewhere on the back of the reciever. If it is not in protection mode now then proceed to connect one speaker set at a time and turn on the reciever to see if it goes into protection mode. If it goes into that mode after connecting a speaker then that speaker is the cause of the problem. If it does not go into the mode after all speakers are connected then try turning the volume up. If it goes into protection mode then there could be an internal short on the amplifier or a incorrect OHM rated speakers connected to reciever. Verify that the speakers are rated the correct OHMS.

Feb 22, 2010 | Denon AVR-1200 Receiver

2 Answers

Getting out of protect mode I have a Denon 787 receiver. It was working fine for 8 months. All of sudden, my reciever goes into protect mode after playing for about 30 min. Right after it goes into protect...


most of the receivers come with a cooling fan inside see if its working they usually work when you turn the volume up,, if its working that means you are playing it to loud if you lower the volume a little it will play just fine..( if the fan inside is not working thats the reason it goes into protect mode and it means you must have it repaired,, it goes into protect mode to prevent furter damage to the unit or the speakers,,

Dec 18, 2009 | Denon AVR-787

3 Answers

When i switch on my samsung HT-Z110 the word hello appears then protect thenit turned off!


Audio receivers have an output protection circuit called "protect mode", this is to protect the receiver from short circuit failures.The speakers and speaker wires are what I inspect thoroughly first, look for bare speaker wires,or bare wires that are touching each other at that point,check speaker wires at the back of the receiver for sloppy connections,etc.If all looks good then try disconnecting all the speakers at the receiver,then turn power on to see if it goes into "protect mode", if it does the the receiver probably has an internal short and will need to be sent in for service,if it doesn't go into "protect mode" then connect one speaker at a time back into the receiver until it does go into "protect mode" then which ever speaker you connected last is the speaker that is shorted(blown) and then you know that speaker is the problem and it will need to be replaced or repaired. Good luck !

Nov 29, 2009 | Samsung HT-DB600 System

1 Answer

Car audio amp in protection mode


If you power up the amp with the RCAs plugged in, does it go into protection mode.

If you power up the amp with the RCAs plugged in, does the woofer pop?

Oct 26, 2008 | Pyle PLAD413 Car Audio Amplifier

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