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09-14-2010, 09:18 PM
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#1 |
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Old member
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 19,936
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???? Son's amp
My son comes in and tells me his stereo isn't working. OK, so I go out to look see... The amp has 2 25amp fuses that are both good. Power light is red which has a statement wrote beside the light
Green light is power on. RED light is protected???? So I check the wire from the battery to amp. Fuse in the main cable that comes off the battery straight to the amp is blown so I install new fuse. Nothing changed it is still saying protected. What does this tell me? 
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1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs. |
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09-15-2010, 05:26 AM
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#2 |
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>130dB Moderator
Join Date: Aug 2006
Location: Sacramento, CA
Posts: 2,130
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Re: ???? Son's amp
Could be any number of reasons. My suggestion would be to start by double checking all your connections to the amp, especially your power/ground. Having a fuse blow means that something is wrong there (usually).
Secondly, if you're not afraid, open the amp and look for any signs of damaged circuits. Usually when you draw that much current, something is going to give. My guess is that its somewhere close to the power input side of the amp, near the power supplies. It may be very small, so look closely for any discoloration in the PCB, but be careful not to touch the board.
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Living Life @ 130dB LED Tail Light Conversion; How-to Friend. Father. Brother. RIP El Jay ------------------------------------------------------------------------------------------------------------------------- CLICK HERE and for less than $0.07 a day, you too can help support and build a better forum. |
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09-15-2010, 11:11 AM
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#3 |
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Old member
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 19,936
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Re: ???? Son's amp
I checked it out best I could yesterday. I disconnected everything and then hooked it all back up. It has a very light hum coming out of the speaker as though it wants to work but can't.
I guess it's time to take it to the stereo doctor and see what the problem is. 
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1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs. |
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09-15-2010, 02:06 PM
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#4 |
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>130dB Moderator
Join Date: Aug 2006
Location: Sacramento, CA
Posts: 2,130
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Re: ???? Son's amp
Yeah, without actually being able to look at it, its hard to make an eval. but to me it sounds like the amp is dead.
__________________
Living Life @ 130dB LED Tail Light Conversion; How-to Friend. Father. Brother. RIP El Jay ------------------------------------------------------------------------------------------------------------------------- CLICK HERE and for less than $0.07 a day, you too can help support and build a better forum. |
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09-15-2010, 02:52 PM
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#5 |
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Registered User
Join Date: May 2010
Location: Nacogdoches,Texas
Posts: 330
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Re: ???? Son's amp
Any idea if the speaker combination is right for the amp (ohms or watts)? If the combinations are wrong it could pass to much power thru the amp and it will go into protect mode. Also extreme heat conditions will cause them to go into protect mode.
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Smoke Tires, not Drugs |
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09-15-2010, 08:12 PM
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#6 |
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Old member
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 19,936
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Re: ???? Son's amp
I bought the amp speaker over a year ago and had the local stereo shop install it. It just quit a few days ago.
__________________
1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs. |
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10-21-2010, 11:16 PM
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#7 |
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Registered User
Join Date: Sep 2010
Location: Mason City, IA
Posts: 237
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Re: ???? Son's amp
sounds like a rockford fosgate amp problem to me. If so, they usually go into protect mode when its already too late
 Hope this isn't the problem though, good luck!
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66 suburban 51 Merc 2 door coupe 38 Chevy Business Coupe (gf's) 76 Airstream Sovereign |
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10-22-2010, 08:19 AM
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#8 |
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Account Suspended
Join Date: Sep 2010
Location: hingham ma
Posts: 1,721
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Re: ???? Son's amp
hook it all back up..
turn it on. and disconnect one speaker lead at a time and then toggle it off and on waiting a minute between off/on. when it goes green you've found the short. start with speaker wires, then move to the rca jacks. |
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