Question about Car Audio & Video

1 Answer

Boss GT780 4 Channel 1000 watt mosfet amp protect light

Protect light is on and it don't work. Was working fine then it just stopped working. When I checked the amp the protect light was on. What should I check???

Thank you

Posted by on

  • jackajames Jun 18, 2009

    Checked the fuses, cleaned the ground contacts. Still the same.

×

Ad

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    Corporal:

    An expert that has over 10 points.

    Mayor:

    An expert whose answer got voted for 2 times.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 11 Answers

Fuses , ground wire , and battery fuse

Posted on Jun 18, 2009

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

E1200 jl amp was working fine. Speakers stopped playin an power an protect lights are on.


If the "protect" lights are illuminated, either you blew the finals on the amp, or the supply voltage reaching the amp is under 10VDC.

May 21, 2015 | Car Audio & Video

2 Answers

Protect Light On Amp Being Weird


Could try switching right and left subs. If the problem moves to the other side pull the wiring and redo.
Then if the wiring is ok check the sub.

May 15, 2013 | Jensen JPA600D - 600 Watts Digital Mono...

2 Answers

JBL amp, worked fine untill 2 days ago. protection light on..


might have roasted your speakers voice coils a little which may be sending the amp into protect mode throw a speaker on it that you know works and if it doesnt trigger the protect circuit then you probably have a blown or almost sub.

Jan 02, 2010 | JBL BP1200.1 Car Audio Amplifier

1 Answer

Jbl am in protect mode


if it goes in protect mode means ur amp is turn up to high or it is over heating so it protectn it from fryn ur amp try to adjust it down

Jul 12, 2009 | JBL BP1200.1 Car Audio Amplifier

1 Answer

Audiofonics adf-241 no power all wires connected fuses ok.


Hello pimprascalz,

Many amps will go into protect mode if one of the speaker wires is shorted or grounded, or if the voice coil(s) are defective. Try disconnecting the speaker wires one at a time and see if the amp still goes into protect upon power up. Likewise, some amps will go into protect if one of the inputs is grounding out. Again, to troubleshoot, disconnect them one at a time and try the amp. Next, make sure that the amp itself is not grounding. Most amps need to be mounted to a nonconductive surface. If the case contacts the frame of the vehicle, it can cause a problem. If the problem is not in the speaker wires or the input cables, the amp case is not contacting the vehicle frame, and you have checked your power, ground and turn-on leads, then the amp itself is probably faulty.

Hope this helps.

May 19, 2009 | Audiofonics ADF-241 Car Audio Amplifier

1 Answer

Memphis PR300.2 Amp protect light on


If it is not turning on your problem is it is not getting power. Check your fuses. The reason an amp goes into protect mode is usually because the subs are not wired up right. Make sure your fuses are good, you have a good ground, and make sure your amp turn on wire didn't come loose when you were putting the deck back in. As for the amp going into protect you probably wired the subs down to too few ohms and the amp you have can't handle it. Try hooking the subs up straight w/o bridgeing them and turn it up to see if it works. If you don't have problems with it then you wired your subs wrong.

Mar 22, 2009 | Car Audio & Video

2 Answers

Protect led light


It appears that the amp is going into protect mode. To eliminate external causes, read through the following page. Let me know if you have any other questions.

Amp in Protect Mode - Troubleshooting

Oct 10, 2008 | Car Audio & Video

1 Answer

Amp Not working!


If the amp goes into protect mode, it's likely due to shorted output transistors. To eliminate other possible problems, read through the following page:

Amp in Protect Mode - Troubleshooting

If the problems are not with the wiring, follow the link at the bottom of the page to the Amplifier Repair Primer page.

Let me know if you have any other questions.

Sep 20, 2008 | Power Acoustik TS620-2 Synchronized...

2 Answers

600w legacy amp


9 times out of 10 if your amplifire is in protect mode and evrything externaly, like speakers, fuse, voltage, etc. checks out fine then
either you have shorted out output transistors or power mosfet transistors. Basicly that just about what happens with car amps.
It's easy enough to fix IF, IF you know what your doing. First you
need to check the output transistors with a digital volt meter on diode check, If they check out then check your power supply mosfet transistors. I can almost guarantee this is your problem. Very common. I buy non working amps all the time and repair them. Listen to pbabin also he has helped me out. Good luck

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/mark_b53a7494531bf96d

Sep 08, 2008 | Legacy Audio American Legacy II LA490 Car...

1 Answer

Power & protect


my amp says Lo on the digital circle on top of the amp i have a mtx 9500 bridged to the amp and it cuts out at high volumes and suddenly please help



Dec 21, 2006 | AudioBahn A8000V 400W x 1 Car Amplifier...

Not finding what you are looking for?
Car Audio & Video Logo

Related Topics:

438 people viewed this question

Ask a Question

Usually answered in minutes!

Top Car Audio & Video Experts

xxxxxx xxx

Level 3 Expert

4981 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17130 Answers

Marvin
Marvin

Level 3 Expert

81423 Answers

Are you a Car Audio and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...