I know that the bose amps can be fixed, I once saw a posting that had a part number for the capacitors from Radio shack. Any one know. This is for an 1986 vette

Jeff Froggatt


[Modified by jtfrog, 4:47 PM 8/22/2002]


[Modified by jtfrog, 11:52 PM 8/22/2002]

 

don't know about the shack, but the mags all have amp replacements units for a few bucks

 

I'll get back to you tonight, I don't have the information on this computer. :seeya

Here is a great writeup on troubleshooting and repairing the amps: http://www.zr1.net/Bose2.pdf


[Modified by 92Shawnster, 12:15 PM 8/22/2002]

 

I've repaired two.

Just replace all seven (I think it is seven) "green" electrolytic capacitors on the board. You will have to cut the gummy resin off some of them before you unsolder them. If you don't have soldering experience, I suggest you find someone who has.

Tom Piper


[Modified by Tom Piper, 12:15 PM 8/22/2002]

 

...and here is a link that I just got from C4 General:
http://scotfab.tripod.com/old_proj15/old_proj15.html

 

Here's the capacitor count from my '90 Coupe's Bose amps.
Each amp has the following number of "polarized" capacitors. Capacitors should be rated at at least 25 volts (do not go larger than 50 volt ratings or they may not fit):
Rear Amps -
2 - 1.0 micro-farad (mfd) capacitors.
1 - 4.7 mfd
3 - 10.0 mfd
2 - 47 mfd
2 - 1,000.0 mfd
Front Amps -
1 - 1.0 micro-farad (mfd) capacitors.
1 - 4.7 mfd
3 - 10.0 mfd
2 - 47 mfd
2 - 1,000.0 mfd
I recommend that you buy:
A Radio Shack "solder sucker" Part number 64-2060B
A low wattage soldering iron similar to Radio Shack 64-2051B
A heat gun (out high wattage hair dryer) to remove the hot glue that was applied to the larger caps to hold them in place.
Be sure to correctly identify and mark the pins for the caps on the bottom of the pc card before you start removing solder. A magnifying lamp helped me considerably.
Be sure to install the new caps with the same polarity (with the arrows on the caps pointing in the same direction) as the ones you removed.
This fix with the help of all of the inputs and links on this forum took me from one sick speaker on my new ride to four very nice boomers.
Good luck.