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How do i reset my sony HCD-E909iP?

It says protect when i plug it in

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The amp is probably shorted and needs to be repaired. A reset will not fix this.

Posted on Jan 15, 2013

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1 Answer

I have a Sony HCD-EX9 when plug in protection come on the display. Can you assist me with this problem


protection comes on when it detects a short. Try unplugging everything but the power cord and then see if it still goes into protection.

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Sony hcd-ec99i i have no sound from the speakers at all. I am not getting the protect message. please help


Check the simple stuff first

Is it muted?

Is the source selected sending signal (radio staion broadcasting, cd playing, ipod all the way ect)

Try doing some basic troubleshooting like,

see if all sources available yield the same result (TV, Radio, CD, Ipod, Aux jack)

When you turn the volume all the way up, do you hear an audible hiss from the speakers?(or use a test tone) If so, your amp is working and the problem is, your unit is not sending any signal to it.

If possible hook up your speakers to another system to rule them out, however I doubt that is your problem.

Here is sony's recommendation and a review video

Let me know what you get

SONY eSupport How to troubleshoot if there is no sound or intermittent...



Feb 03, 2014 | Audio Players & Recorders

1 Answer

My Sony HCD-EC909iP receiver won't turn on and the


Usually that is caused by a bad amp IC. Normally on this model, you would just replace the entire main pcb.

May 02, 2013 | Audio Players & Recorders

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How do i reset a sony HCD-EC909iP 530w stereo that says "PROTECT" when i plug it in?


Look on the back of the unit to see if you can find a reset button. If not then you may have blown an internal fuse.

Jan 13, 2013 | Audio Players & Recorders

1 Answer

SONY HCD LX-50 msg: "Power down to Protect"


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 '*****'. 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.

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Sony HCD-BC150 As soon as I turn it on, it shuts


Change the audio amplifier IC are on short circuit and that´s the cause your device goes to protect mode

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