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Rxd-755 protect mode - Kenwood Audio & Video Receivers

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What's your problem?powerprotection mode unlock


If the protect function works and causes hindrance to trouble shoot, cancel the protection function as described below, and it will be possible to enter the self-diagnostic function mode. (The protection functions other than the excess current dtect function will be disabled.)

While pressing the "Tone Control" and "Info" keys, press the "Power" key to turn on the power and keep pressing those 2 keys for 3 seconds longer.

The seld-diagnostic function mode is activated with the protection functions disabled.

In this mode, the "Sleep" segment of the Flourescent Display flashes to indicate that the mode is self-diagnostic function mode with the protection functions disabled.

Caution!!!! Usiong this product with the protection function disabled may cause further damage to your unit, so use special care when using this mode.

Apr 18, 2012 | Yamaha RX-V671 7 Channel AV Receiver -...

1 Answer

I have kenwood rxd 355. and i have a problem with "protect" text whowing. what to do?


Generally speaking, an amp attempts to protect itself from heat, shorts, overloads
and operator exuberance by refusing to turn on or stay on.

Overloads can be from excessive periods of high output or marginally low impedance
loading by the speakers; and shorts would be wiring issues or a speaker blowing
up.

You should be able to feel if it's hot. WHY is it overheating? Make sure it has
sufficient ventilation on all sides and that vent holes are not blocked by dust
balls. Ensure the fan (if equipped) is running as designed (some only operate on
demand). Clean dust and debris from it.

If the amp comes back on after cooling, you're lucky. They only have so many
self-protection cycles in their lives so continuously resetting or cycling their
power without addressing the cause can do more harm than good.

If it protects immediately on a cool power up you should disconnect the speaker
connections and try it 'naked'. If it comes up then diagnose which lead(s) are
shorted. If it does not come up the problem is internal and should be left to an
experienced and competent hands-on tech.

Check for loose speaker connections at the speaker as a root cause for
intermittent shutdown.

May 27, 2011 | Audio & Video Receivers

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

1 Answer

I HAVE A SONY RECIEVER SRT-DE597 6.1 CHANNEL AND I ITS ON PROTECTED MODE CAN YOU HELP ME UN PROTECTED


Amp output is damaged and needs repaired. Protect mode cannot be deactivated. When amp is repaired and operating normally protect mode will not be displayed.

Aug 29, 2009 | Sony STR-DE597 Receiver

1 Answer

Goes into protect mode..


you probly have speaker wires arching. unplug them and replug thm in making sure no bare wire is showing

May 17, 2009 | Sony STR-DG520 Receiver

1 Answer

Stuck in protect mode


Protet mode is a special diagnostic mode that starts when a fault is detected.

When in protection mode the unit is prevented from starting by protection circuit, so to prevent further damage.

Check the speakers and speakers wiring, a contact in speaker wires, or faulty speakers can send the unit in protection.

Try unplugging power cable for one hour or so. then connect cable back and see if you get rid of protect state. Sometimes accumulation of electrostatic charges inside circuit capacitors can kick in protect mode. In that case unplugging the unit from main for some times can get rid of electrostatic charges, and reset circuits by draining power completely.
If that was the problem, you will not get Protect when plugging back power cable.

If you do all the above and still get Protect, then there is a real fault.

In that case the unit may be disassembled and tested to find the fault.

If that is the case I suggest contacting the manufacturer at the number listed on the owners manual, or asking a quote on repair to a local technician.

May 04, 2009 | Sony STR-D1015

1 Answer

My samsung HT-TX75 keeps shutting off in a few minutes saying protection.


protection mode activated to protect from serious damage and please follow me.1-shut down your system2-make volume in low position3-remove all your connected speaker4-switch your system on and watch if it does not go to protect mode insert your speaker one by one until you find the bad one and change it and start with cable change first and then speaker itself-if it goes to protect mode you must call service center.

Jul 07, 2008 | Audio & Video Receivers

2 Answers

Protection mode


you have to verify your connection cause if you are a short circuit in your different output or input the protection mode is on. it's an internal security
first disconnect all your output speakers, and restart your amplifier if the protection mode is on again try to disconnect all your input device and restart your amplifier, the protection mode should be off, so after connect one device after one to check who makes your protection mode on
;)

Mar 31, 2008 | Onkyo TX-SR502 Receiver

4 Answers

Amp comes on and goes right into protection mode


Turn the reciever on for a second or two and then off before the protect mode shows up on the monitor. Repeat this step about five times and check to see if the reciever does not go into protect mode. If it does go into protect mode try it again. Dont know if this is the proper way to fix the reciever but it worked for me. Good Luck

Mar 09, 2008 | Audio & Video Receivers

1 Answer

Stuck in protect mode


Speakers shorted out, blew a fuse. Replace the unit or (cross your fingers and) open up the box and find the blown fuse.

Nov 23, 2007 | Sony STR-DE425 Receiver

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