Question about NAD L 53 DVD Player / Receiver

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I get "protect" message and system switches off

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Your out put audio IC's are shorted out. Most likely cause bad speaker wires or wrong ohms for speakers.

Posted on Feb 21, 2013


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Protection Message

Protection mode is a shutdown to protect the circuits on the amplifier. This will come on if the speaker wires are shorted or if their is a lot of DUST on the inside of your machine. On some machines, protection mode will come on if one of the speakers is open (breaks). What I would do is check the earphone jack on the tv. Put a headset in and see if that works. Last resort is purchase a can of air duster.

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1 Answer

"Protected" message and switchs off.

on most audio equipment when that happens there is either a short in speaker wiring,bad speaker,or something putting too much of a load or resistance on the amp. unit of your system. if all checks out ok there possibly internal damage.

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my system keeps turning its self off then the standy keeps flashing...does any1 no why???thanks

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Your system has a safety switch off due to a failure in one of the sections. The fault can be anywhere in the output or the power. You will need to switch off and test the output section with the aid of a multimeter for shorting. Check if your speakers also had shorted. If so remove and test. Next the fault can be the sub power or the section of the protect circuit. Use a test in this section but do this only if your are competant. Otherwise get help with this advice. Good day

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Error message "Protect"

you can try to hold the stop button down for 5 seconds while the power is off to reset. If that doesn't work disconnect all the cables from the back expect the speaker cables and the power cable. then turn the unit on and reconnect the cables once the unit is on.

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Is there a switch on the pendrive that has a lock symbol on it? If so ensure it is in the unlocked position.

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Maybe the audio amplifier IC damaged and need to be replaced good luck

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Don't buy a stereo that prints up 'PROTECT MODE' and then does not tell you how to cure it. This is a good way of getting people to buy a new one only live and learn do not buy the same manufacturer again. I have a nice just out of warrenty JVC that when I switch it on sits there grinning at me with 'PROTECT MODE' showing. Yes I have entered cash protect mode and decided I am not going to buy another JVC.

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