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Old 6th March 2008, 08:08 AM   #1
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Join Date: Jan 2006
Location: Arkansas
Default profile A600 2 ch

I bought this profile amp off ebay hooked it up and the light on top comes on, but it has no output. No burt smell, spots, or ICs. Anyone have any ideas about what I might check?
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Old 6th March 2008, 08:51 AM   #2
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Read through the basic repair page (link below).

With the amp powered up, measure the DC voltage on the center leg of each of the output transistors (near the large resistors). Place the black meter lead on the RCA shield. If you get no reading, try placing the black lead on the ground terminal of the amp.

If you still get no voltage, measure the DC voltage on the first leg of each of the power supply transistors (black lead on the ground terminal of the amp).
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Old 14th March 2008, 09:21 PM   #3
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Where would I look to get replacement parts? I am needing like 6 D1062 and don't want to order 10,000 of them
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Old 14th March 2008, 09:31 PM   #4
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http://www.mcmelectronics.com/produc...me=MCMProducts
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Old 17th March 2008, 04:57 AM   #5
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Location: Arkansas
Perry, I also have a L.A. Sound Malibu 120 that is about 16 years old. It is the amp needing the d1062. Do you know if they can be replaced without removing the board from the heat sink?
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Old 17th March 2008, 05:07 AM   #6
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I think you're going to have to remove it from the sink but those amps are easy to disassemble... If it's the amp I'm thinking it is.
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Old 17th March 2008, 01:58 PM   #7
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I was just hoping I wouldn't have to unstick all of those chips from the heatsink to fix those few. oh well!
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Old 18th March 2008, 04:32 PM   #8
ppia600 is offline ppia600  United States
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Its a good idea to remove the entire board anyway, so you can check the bottom for burnt traces or cracked solder joints. I got a malibu 150 on ebay and sold it to a friend. He says it sounds way better than the punch he was running. I agree it is louder for sure.
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Don't worry... you can always turn the gain down!
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Old 18th March 2008, 10:49 PM   #9
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Location: Arkansas
I had a malibu 150 as well. it, 2 other amps a couple of Rockford 8's in the factory boxes , a good Sony cd player that never skipped (pre-xplode), and a nice eq were all borrowed from my truck while I was inside my place of employment.
The 120 was a few years older and had a bigger heat sink I think it is nicer looking that the 150. I also have a Redondo 80 of the same era, same heat sink different length, its had a strange buzz so I haven't had it hooked up in a long time
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Old 18th March 2008, 11:26 PM   #10
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I sucks when you work to have nice stuff, then people take your stuff while you work!!! Some poeple are just low....
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