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24th October 2009, 11:49 PM
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#1 |
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diyAudio Member
Join Date: Oct 2008
Location: Los Angeles
 
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Can this Rockford amp be fixed?
It has a blown imput circuit. I won this on Ebay for the end caps and bottom cover. I was gonna use it as a wall hanger but maybe its repairable? Oh yeah the back of the board is kinda burnt too. This this thing fried pretty bad!
LMK Thanks! |
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24th October 2009, 11:59 PM
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#2 |
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diyAudio Member
Join Date: Nov 2003
Location: Louisiana
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Is this a 60ix?
You need to clean the board top and bottom with acetone and a toothbrush so you can better see the extent of the damage.
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25th October 2009, 12:44 AM
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#4 |
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diyAudio Member
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Holy.. what would cause such extensive damage to the input section? Did someone 'wall socket' it or something?
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25th October 2009, 01:32 AM
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#5 |
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diyAudio Member
Join Date: Nov 2003
Location: Louisiana
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These are from a 40x2.
http://www.bcae1.com/temp/punch40x2/IMG_2211.JPG http://www.bcae1.com/temp/punch40x2/IMG_2213.JPG http://www.bcae1.com/temp/punch40x2/IMG_2216.JPG According to a friend who was watching the auction, they allowed 12v to contact the RCA jacks (<< second hand information).
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Links >> Basic Car Audio Amp Repair * Basic Car Audio Electronics * New Site * Basic Switching Power Supply Design * Basic Computer Skills << Links Last edited by Perry Babin; 25th October 2009 at 01:42 AM. |
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25th October 2009, 03:14 AM
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#6 | |
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diyAudio Member
Join Date: Oct 2008
Location: Los Angeles
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Quote:
No, its a Punch 55.2. Do you know whereto get that?? Thanks for the reply! |
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25th October 2009, 03:16 AM
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#7 | |
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diyAudio Member
Join Date: Oct 2008
Location: Los Angeles
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Quote:
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25th October 2009, 03:22 AM
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#8 | |
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diyAudio Member
Join Date: Oct 2008
Location: Los Angeles
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Quote:
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25th October 2009, 03:31 AM
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#9 |
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diyAudio Member
Join Date: Nov 2003
Location: Louisiana
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There may be no defective components (except possibly the diode that connects the RCA shield to the chassis ground - D7, behind the treble pot in the 40x2). You may only need to cut out the carbonized fiberglass and jump the traces on the bottom.
I don't have a 55.2. I borrowed the 40x2 from a friend. It's not difficult to replace the SMD parts. Are you asking where to get acetone? Any hardware store. Even walmart has it in the home paint section. If you use a toothbrush, don't use one that's transparent. The acetone will melt it. Use the acetone outside and let it evaporate completely before bringing it back indoors. It's extremely flammable. Don't let it drip onto any plastic material. It will likely melt it.
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