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Problem with gain of Pioneer GM-4000

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Calhadriel

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Hi!
I have a problem with my amp. It's an old 2 x 200W (1 x 400W) pioneer. It works fine when gain is set to minimun, but even a bit more it starts to cut the sound. Any ideas?
 

pioneer gm-4000

Hello

maybe the input circuit does not have an correct alimentation.
Normaly car amplificator have an Ic at the entrance.
Check for the alimentation and insert an signal to the stage to see the behavior.

Regards
 

pioneer gm4000

How about the Schematic? Will that Help you?
 
Re: Pioneer gm-4000

hello, i have the same amp but i don't know how to get it to work. i have connected everything but i think it is missing the remote connection. my head unit does have the remote wire but i just dont know where to conect it. my Pioneer gm 4000/compulsory fan cooling amp has just ground and power conections.. it is missing a knob called mono whis has a _ ----MONO---- + sign? what is this for? please help. thank you
 

Re: Pioneer gm-4000

Try tying Orange, Red, Yellow, and Blue to Positive and see if it works.
 

Pioneer gm-4000

u mean tying them all toguether? and then conect it to the remote wire beahind my head unit? thank u.
 

Re: Pioneer gm-4000

if the amp is lying like it is in ur pic it would be a empty slot then the blue remote wire, then the yellow wire (for the lighting switch then the red wire witch goes to the ignition switch witch is on/off
 

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