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ARTHUR WILLIAMSON Posted on Apr 08, 2019
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I blown my nakamichi PA-1 power amp, and i need some suggestions on how to repair it.

1 Answer

Franco Dosil

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  • Nakamichi Master 10,542 Answers
  • Posted on Apr 19, 2019
Franco Dosil
Nakamichi Master
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Joined: Apr 14, 2019
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Hello Arthur, what happened to your Nakamichi, what kind of failure do you have and what do you need?
Greetings Franco Dosil

Hola Arthur, que le ha pasado a tu Nakamichi, que tipo de falla tiene y que necesitas?
Saludos Franco Dosil

3 Related Answers

Anonymous

  • 65 Answers
  • Posted on Nov 22, 2007

SOURCE: I do not hear any music through my 10" M Audio Subs (M Audio Sound System)

If you know how to use a multimeter, you can test the amp this way:

-unhook the subs
-hook up a cheapie speaker you know for sure works to one of the channels
-unhook the audio inputs
-turn the amp on
-set your meter to VDC
-put the positive probe on the inside of the input connector, being sure you make contact with th inner contact
-take the negative probe and tap it on the outside of the connector

What you are doing is sending a low voltage (replicating an audio signal) into the amp audio circuit and allowing the amp to amplify it. If the amp makes the speaker pop each time you strike the probe, the amp is working.

You mentioned you need a 4 channel amplifier make the two, dual voice coil subs operate. The is not true and by hooking them up like that, there's a chance of damaging the subs. The reason is that the dual voice coils are interwoven and they have to get electrically identical signals or they fight against each other. The can mechanically fail, then, electrically fail, then even damage the amp too.

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Anonymous

  • 5 Answers
  • Posted on Aug 23, 2010

SOURCE: My mother's Nakamichi soundspace5's right speaker

Hi there, do you still need a replacement speaker? I have one

Denon dude

  • 2 Answers
  • Posted on Mar 05, 2011

SOURCE: Remote controller for Nakamichi AV 10 amp. stopped

Hi,

I got the Nakamichi Av-10 i too face the same problem i just tap the remote with my palm and it starts working...:) just try this am sure it should work

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Power light is on but no speaker output?

Disassemble it enough to get to the speaker to check for continuity. If it's blown, replace it, If not, the amp board is probably blown and needs to go in for repair.
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Hi, your amp has a short if the fuse is blown - it needs to be repaired - we can fix it - look on ebay. Thanks.
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Brand New Ampeg Ba 600 210. Only Used durin 2 shows. Sound is awesome. Go to use it this weekend and absolutely no sound at all coming through the speakers. Compression, eq and Everything else working when...

Another person posting on here I suggested opening his unit and he had blown speakers. I think these that are DOA after previous use may be blown during the previous shutdown of the amp driving them and those with built in amps are blown when mixer is powered down putting out a large pulse. Hopefull the amp is blown rather than the speakers... cheaper to repair. Open and check for a fuse, but dont' replace it until you find out the cause of it blowing as additional damage can occur.
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Remote controller for Nakamichi AV 10 amp. stopped working last night despite replacing new batteries. Red LED not illuminating when 'power' button depressed. Any suggestions for repair/replacent of...

Hi,

I got the Nakamichi Av-10 i too face the same problem i just tap the remote with my palm and it starts working...:) just try this am sure it should work
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I need a Nakamichi subwoofer amplifier for my '91 Lexus LS400.

I found a few on eBay with this link...all others are out of stock but I'm sure you knew that.
http://shop.ebay.com/i.html?_kw=nakamichi&_kw=amplifier
0helpful
1answer

I do not hear any music through my 10" M Audio Subs (M Audio Sound System)

If you know how to use a multimeter, you can test the amp this way:

-unhook the subs
-hook up a cheapie speaker you know for sure works to one of the channels
-unhook the audio inputs
-turn the amp on
-set your meter to VDC
-put the positive probe on the inside of the input connector, being sure you make contact with th inner contact
-take the negative probe and tap it on the outside of the connector

What you are doing is sending a low voltage (replicating an audio signal) into the amp audio circuit and allowing the amp to amplify it. If the amp makes the speaker pop each time you strike the probe, the amp is working.

You mentioned you need a 4 channel amplifier make the two, dual voice coil subs operate. The is not true and by hooking them up like that, there's a chance of damaging the subs. The reason is that the dual voice coils are interwoven and they have to get electrically identical signals or they fight against each other. The can mechanically fail, then, electrically fail, then even damage the amp too.
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Channel 2 volume is very low

You can check if channel 2 is blown by switching around your RCA plugs. If you are using the speaker wires as high power inputs you can change them. I.E. swap the left channel with the right one. I assume you checked the gain control on the amp. If channel 2 works with channel 3's inputs then its your head unit or the wiring. If you are lazy take the amp to a car audio store and ask them to bench test it for you. Hack
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1990 Lexus LS400 Nakamichi Car Stero Amp problems

if the amp is damage it needs to be repaired or replace but the age of any amp doesn't matter, all are compatible to work.
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