Question about Alpine MRD-M1000 Car Audio Amplifier

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Car amp turned off in middle of play

I was listening to my music and I turned up the volume. Then my speakers made a scratchy sound and the amp turned off. I cant get the amp to turn back on and my reciever is working. What could be the problem? I hope I didnt kill the amp. I dont a fuse connected to the hot wire (yellow) which is connected to the amp. Maybe too much power from the battery went to the amp and blew it? Maybe the amps 2 fuses blew?

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Check all fuses and connections first. Without a fuse you may have got a power spike and it could have killed your amp.Make sure your default protection aint cutting your amp off.

Posted on May 19, 2009

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Make sure and check all the fuses including the one under hood also check all wires to see if they are well connected

Posted on May 13, 2009

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1 Answer

Blown/scratchy speaker


Based upon your brief description, it sounds like the internal speaker itself has worn out (likely cause) or possibly the internal speaker wire(s) may become disconnected or may be shorting out.

LeapFrog has discontinued product support of our "Learn & Groove" Musical Table with green legs that was made in 2010. LeapFrog Customer Service declined to discuss replacement parts, so I searched eBay for an exact speaker replacement.

BTW, I am not affiliated in any way with the eBay seller nor do I work for LeapFrog... I'm a Computer Engineer/Geek in Cincinnati, Oh trying to solve a simple toy problem. All opinions expressed are solely my own and do represent any technical guidance from the original equipment manufacturer.

Correct replacement speakers are available on eBay and ship from Hong Kong... I just bought qty2 of these speakers for $5.69 total inc s/h/p (only 1 was needed). Delivery time was slow, but well worth the wait...

When the replacement speakers arrived, I had to take off the back panel screws and unsolder the original speaker, so I could resolder in the single replacement speaker under the 2" black cover. The "Learn & Groove" Musical Table speaker now works great!

Some forum posts say that resoldering a computer modem speaker (16ohm .25w) could be used, but this is a temporary solution at best. The replacement speaker from Hong Kong produces a better quality sound and more sound volume when used with the "Learn & Groove" Musical Table.

The speaker replacement specs for the LeapFrog "Learn & Groove" Musical Table with Green Legs are as follows:

"Round Aluminum Shell Magnetic Type Slim Speaker Horn"
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This replacement speaker worked great for me and now my Granddaughter can again enjoy her toy that I was able to fix!

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1 Answer

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