Question about SPL Dynamics Z2X-820 Car Audio Amplifier

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It goes right to protect mode when i plug in the rcas

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Plug one at a time to check for a short on either the right or left channel. if both do it, then try another rca cable. if that does it too, then unplug your speaker outs and plug your rcas back in and check. get where i'm going with this. process of elimination. if nothing helps, then there's a short in your amp.

Posted on Jul 05, 2010

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Installed lanzar 266 amp yesterday it went in protect mode on a song and now everytime i turn it on it is in protect mode


most commonly that means that somewhere there was an arc in the electrical either the pos or neg going into the amp or rcas or its the speaker wire from the amp to to the sub itself look especially for little wires touching opposit polarity wire (like a little +wire has moved and touched a - wire)

Oct 07, 2010 | Lanzar VIBE266 Car Audio Amplifier

1 Answer

How can i get my amp out of protect mode?


Disconnect all wires - then reconnect ONLY...
POWER WIRE
GROUND WIRE
REMOTE WIRE

Re-try.

At this point a protect fault means the problem is internal, and the amplifier must be repaired.

If it powers on normally - add the RCAs
If protection at this point - the RCAs may be damaged bare to ground. Replace the RCAs.

If still operating normally - (and after checking the voicecoils on the speakers are within specs with a multimeter) add speakers to the normal rated impedence of each channel.

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Jun 28, 2010 | Sony Xplod XM-554ZR Car Audio Amplifier

1 Answer

When watching dvd, system goes into protect mode, how do i fix it?


Check the RCAs to make sure your run polarity into the wrong place,or check speaker wire to make sure none are crossed.

Oct 26, 2009 | Audio Players & Recorders

2 Answers

Let our Experts solve your "My amp lights up like normal then protection light red comes on and turns the amp off resets and tries again. What would be my course of action


disconnect all wires (including RCAs)
reconnect positive, ground, and remote.
Turn amplifier (car) on.
If it goes into protect mode again - there is an internal fault that requires professional repair.
If the amplifier idles as normal - turn off the car. Plug in RCAs & re-try
Failure? - replace RCAs as they may be pinched or faulty.

Lastly if all connections are made and amplifier idles without going into protection - you need to concentrate on your load (subwoofers).
Be sure they are wired properly into a resistance that amplifier is rated.
The lowest impedence that amplifier is rated is 2ohm.
That is possible with (2) 4 ohm subwoofers wired in parallel....
(4) 8 ohm subwoofers wires in parallel...
(1) Quad 1 ohm subwoofer...
or (1) Dual 4 ohm voicecoil subwoofer.

Any other combination will result in an impedence too low for your amplifier.

Next:
Using an OhmMeter (Digital multimeter set to Ohms 20) test each voicecoil against its advertised resistance. It should be CLOSE +/- .5 Ohms.

Any other reading means the voicecoil is blown.


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May 27, 2009 | Kicker (ZX750.1) Car Audio Amplifier

1 Answer

Protection mode


try 1 speaker at a time could be blown speaker also try different rcas and inspect positive cable make sure its not grounding out near firewall or pinched somewhere else

Mar 31, 2009 | Sony XM-2002GTR Car Audio Amplifier

1 Answer

Pioneer GM-D7400M power light keeps flashing?


ur rcas could b round the wrong way you might have a weak earth aswll

Mar 24, 2009 | Pioneer GM-D7400M Car Audio Amplifier

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

1 Answer

Hi i am matt


If the protection LED lights only after the remote voltage is applied (head unit is switched on), the amplifier likely has shorted output transistors. If the protection LED remains lit without remote voltage applied, the amp may have other problems.

Does the protection LED light with no speaker wires connected to the amp and no RCAs plugged into the amp?

Jun 22, 2008 | Car Audio & Video

1 Answer

Protection Light Is Coming On


You say the protection mode only occurs when you plug the RCA's in. Does it have to be both RCAs or just one?

The other end of the RCA cable is plugged into the HU?

It possible the RCAs have too much DC voltage on them, causing the amp to go into protection.

Is there a short in the RCA cable?

I would definitely check out the RCA connection at the back of the HU, as it sounds like there could be other issues there. Make sure the RCA connectors aren't touching any other metal (especially +12V).

Mar 14, 2008 | Car Audio & Video

1 Answer

Right side speakers don't work


if you are using RCAs as inputs to your amp.Swap the R to L @ RCAs to see if its comming in okay from radio.If both RCAs have audio then amp is bad ,If amp has any type of switches , move swithces to see if it comes back .Also if both RCAs inputs have audio .Move the RCAs when connected on amp to see if amp has bad connection in board to RCA jacks..If audio comes back on bad side when jack is moves .Then you have bad solder joints on board..If not then you must have bad outputs on amp..

Dec 22, 2007 | Car Audio & Video

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