Question about Pyle PZR-1000 Amplifier

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Reset button I have a PZR-1000 amplifier and it doesn´t work , on the manuals suggest that the problem can be by the protection circuit, and it can be solved pressing the reset button. I´ve tried to find this button on the back of the amplifier but I couldn´t find it. Please tell me what can I do to reset it. Thanks in advance. Camilo

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Re: reset button

Without owning one , I checked the manual and, sure enough, there's no circuit breaker shown. I mailed tech support. Meantime check where the AC comes in and the fuse holder ( unplugged) and see if you can find anything.

Posted on Jan 08, 2008

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I have a Harman Kardon HK990 which throws an error #005 if I switch it on with a digital input connected. If digital input is not connected, it turns on without any error and all buttons work as expec

If you had a bad amplifier, as suggested, the unit would most likely have a condition known as DC Offset. In this case, the amp would immediately shut off. As you said, the amp stays on, but you have no sound. First thing I suggest, turn the unit off. Listen carefully to the top of the amp. When you first push the power button, you should immediately hear one click, followed by a second click, within 5-20 seconds. If you hear that second click, you amp is likely not bad. If you don't, then you do most likely have a blown amp, with engages the DC Protection circuit to the microprocessor(computer within your unit).

Next step is to open your owner's manual. In there, you will find a procedure called, "Return to factory reset, or default". Follow that procedure, to reset the unit back to the factory settings. Those inputs are assignable, meaning that you can make certain inputs, analog or digital. You may have set one wrong by mistake. The reset will fix that. If you need more assistance, or would like to inquire about a repair, please visit my website at, By the way, I worked for HK, JBL and Infinity. Thank you.

Nov 28, 2014 | Harman Kardon Harman HK 990 Amplifier

1 Answer

NAD M3 power light turns red immediately and PROTECT message displays. Amp keeps functioning but volume control doesn't work up or down.

Check the connection to speaker with this amp, for any short or any other fault. disconnect the outputs, ie, speakers from the amp, and switch it On, and see the protect display comes or not. If it comes, the fault is internal and the set need service.
Your M3 dual Mono integrated amp, is of high output power and its outputs are protected against any overload or short circuit. If the system detect any among this condition specified above, it will show protect mode display.
Never load this amp, as protection display is there, as it may damage the speaker or its internal power amplifier section circuits, may cause more money to get it repaired. OK.

Jan 23, 2012 | NAD M3 Master Series Integrated...

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I have an amplifier DSP A 1000. When I turn it on it always working for a while, sometimes 1 hour sometimes just 15 minutes then turned off by it self. which circuit I should check?

Is it getting hot?

Generally speaking, an amp protects itself from heat, shorts and overloads by refusing to turn on or stay on.

Overloads can be from excessive periods of high output 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 hands-on tech.

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

Feb 14, 2011 | Yamaha DSP-A1000 5-Channel Amplifier

1 Answer

My crown 602 xls tripped a breaker, I reset breaker regained power to receptacle , I lost power to the amp no led's come on front when i pushed the small reset button on the back I still did not regain...

They use a breaker instead of a fuse.


power to the amplifier.


• The amplifier's Power switch is off.

• The amplifier is not plugged into the power receptacle.

• The amplifier's high-voltage power supply circuit breaker has tripped. Verify that the AC mains

voltage is correct, then press the Circuit Breaker button on the back panel.

Take it to the ER.

Jan 12, 2011 | Crown XLS 602 2-Channel Amplifier

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Circuit breaker button will not re lock and sinced tripped the power will no longer come on

shorted circuits inside suggest you dont try frequent resets as it may do further damage ,please visit a service centre immediately

Jun 20, 2010 | Samson SX1200 Amplifier

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I hooked this 1000 watt amp turns on but it

Your amp needs to be serviced. Bad protection circuit. Take it to a local car audio shop and have them bench test it first to be sure. Hope this helps.

Sep 26, 2009 | Sony Xplod 1200W Class AB Bridgeable 2-Ch....

1 Answer

Pyle Pro PZR 3000 Watt

I think you will find that something has failed and is causing a short circuit, that's the reason the fuses are blowing and not because you are fitting the wrong type.
I should look at the main devices (anything on a heat sink) first. If they are transistors, you can test them with a Ohm meter. If it gives a reading as if the transitors was acting like a piece of wire, it's gone.
Sometimes you might see evidence of burning or even a hole in something.

Sep 09, 2009 | Amplifiers & Preamps

1 Answer

I can't seem to get out of protect mode. Any suggestions

Hi disconnect everything, inputs speakers and leave power. If still in protect mode then there is a circuit problem, will have to send it in.

Best of luck

Jul 15, 2009 | Visonik V2508 2-Channel Amplifier

1 Answer

Nad C370

Since the problem seems to be sensitive to the volume level, I would be looking at the output wave form for any DC current. Although the protection circuit should detect any DC present, it is possible that some is leaking through. Also, verify that the speaker impedence is correct. If the amp is seeing too low an impedence load, it will work too hard causing excessive heat which will shutdown the unit as well.

Keep me posted.

Nov 04, 2008 | NAD C370 2-Channel Amplifier

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