Bose speaker amp schematic
Thread Starter
Instructor
Joined: Oct 2000
Posts: 130
Likes: 0
From: Clifton Park New York
Hello,
I am starting to collect dead bose speaker amps. Mine seem to be dying at a regular pace. I have replaced with new, but would like to fix the dead ones to keep as spares. I have tried the common capacitor replacement
fix with no success. I am looking for a detailed schematic for the front and the rear
Bose gold local amps. Does anyone know where I can get them? Thanks for you help
Charlie M
I am starting to collect dead bose speaker amps. Mine seem to be dying at a regular pace. I have replaced with new, but would like to fix the dead ones to keep as spares. I have tried the common capacitor replacement
fix with no success. I am looking for a detailed schematic for the front and the rear
Bose gold local amps. Does anyone know where I can get them? Thanks for you help
Charlie M
Race Director<br><img src="/forums/images/ranks/7k-10k.gif" border="0">
Joined: Feb 2001
Posts: 13,013
Likes: 26
From: HOME OF THE FREE. BECAUSE OF OUR BRAVE. Babylon NY
St. Jude Donor '06 thru '20
Those amp's are a real pain. How could Chevrolet put together a fantastic car with an audio system that's as bad as that Bose system ?? Between the amp's and the rotten radio reception the radio is a garbage candidate. It would be great if someone could rebuild those amp's so they don't go down as easy. And find a way to get a lot better radio reception.
Drifting
Joined: Dec 2000
Posts: 1,733
Likes: 0
From: Sarasota FL
Gordon Killebrews book talks about a "ground plane kit" that GM has to improve reception. It is a wire that acts something like a reflector that goes into the car. Normal rust buckets don't have the problem because of all of the metal. It would be worth a try.
Don
Don
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Joined: Feb 2001
Posts: 13,013
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From: HOME OF THE FREE. BECAUSE OF OUR BRAVE. Babylon NY
St. Jude Donor '06 thru '20
Originally posted by DON M:
Gordon Killebrews book talks about a "ground plane kit" that GM has to improve reception. It is a wire that acts something like a reflector that goes into the car. Normal rust buckets don't have the problem because of all of the metal. It would be worth a try.
Don
Don, can you tell me the title etc. on Gordon's book so that one can be purchased ? There is a ground kit offered by Chevrolet for poor radio reception. TIA
Gordon Killebrews book talks about a "ground plane kit" that GM has to improve reception. It is a wire that acts something like a reflector that goes into the car. Normal rust buckets don't have the problem because of all of the metal. It would be worth a try.
Don
Don, can you tell me the title etc. on Gordon's book so that one can be purchased ? There is a ground kit offered by Chevrolet for poor radio reception. TIA
Racer
Joined: Jul 2001
Posts: 399
Likes: 1
From: Toronto Ontario
You don't always require a schematic to troubleshoot an amplifier. I've never had a close look at my bose amp but amps are very similar. Is the fuse feeding the amp(s) blown? If so it's probably the output devices ( mosfets or bipolar transistors ). You can check them with an ohm-meter. Feel free to email me for more detailed info.
If there's enough interest, I'll yank my bose amps and maybe get into fixing them. What would it be worth to you for an amp repair?
( my daytime job is an electronics designer for a major home audio company, I mostly design amps )
If there's enough interest, I'll yank my bose amps and maybe get into fixing them. What would it be worth to you for an amp repair?
( my daytime job is an electronics designer for a major home audio company, I mostly design amps )
Racer
Joined: Jul 2001
Posts: 399
Likes: 1
From: Toronto Ontario
Instructor
Joined: Jun 2000
Posts: 128
Likes: 0
From: Windsor CT
I've got an 84, and it appears that when I use a tape all speakers work great. When I use the radio it appears that the drivers side speakers are not as loud as the passenger side. Is this the amp problem?
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Race Director<br><img src="/forums/images/ranks/7k-10k.gif" border="0">
Joined: Feb 2001
Posts: 13,013
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From: HOME OF THE FREE. BECAUSE OF OUR BRAVE. Babylon NY
St. Jude Donor '06 thru '20
Re: (vette_tweak)
Thank's for the link vette_tweak.
jg84 does the speaker in question pop when you turn the stereo on ? If so the amp is on it's way out.
jg84 does the speaker in question pop when you turn the stereo on ? If so the amp is on it's way out.
