help /w kac-8401 amp repair
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=34825
Printed Date: July 19, 2025 at 2:17 AM
Topic: help /w kac-8401 amp repair
Posted By: Ionysus
Subject: help /w kac-8401 amp repair
Date Posted: June 30, 2004 at 12:40 AM
alright so i bought an amp off of ebay and it was listed as "as is" i didnt expect it to work nesessarily but its missing the 2 capacitors off of the board i was just wondering if any of you know where i can find a wiring diagram or even better if anyone knows the part number off of the capacitors. the board is printed with C11 and C12 as the indentifiers for the caps position, there are only 2 of them and they are the only large caps on the board. the amp is a kenwood kac-8401 4/3/2ch 640w peak 60w X 4 @ 4 ohms with a 40A fuse thanks im kinda lost on this one ------------- -:~^\Brad/^~:-
Replies:
Posted By: stevdart
Date Posted: June 30, 2004 at 6:13 AM
Do you suppose those caps are gone but everything else is just fine? Seriously, if your intent is to learn electronic repair, then ok, start taking courses. But if you want an amp for your car, this is not the route to go. Sorry, bad move buying "as is" off ebay.
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Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.
Posted By: Ionysus
Date Posted: June 30, 2004 at 3:29 PM
the caps are gone as in they were taken off the board prior to my getting it. im in the process of troubleshooting the board with a tracker and it also has some blown transistors that im ordering. i just want to know if anyone knows the part number for the caps or the specs/values for them would work too. ------------- -:~^\Brad/^~:-
Posted By: kgerry
Date Posted: June 30, 2004 at 5:29 PM
what year is this amp? all the service manuals from 2000-up are on CD ROM... i'll have to see what i can find...
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Kevin Gerry
Certified Electronics Technician
MECP First Class Installer
Owner/Installer
Classic Car Audio
since 1979
Posted By: Ionysus
Date Posted: July 01, 2004 at 1:27 PM
i believe its a 2000 but the model # is kac8401 or kac-8401and there should only be one version of the board on this amp. would it be possibe to e-mail me the service manual? i would greatly appreciate it thanks (ionysus@aol.com) ------------- -:~^\Brad/^~:-
Posted By: kgerry
Date Posted: July 02, 2004 at 9:53 AM
no i wont email you the manual...it is a copywritten document only available to Authorized Service Centers... i will find the part # of the cap in question and let you know what it is......
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Kevin Gerry
Certified Electronics Technician
MECP First Class Installer
Owner/Installer
Classic Car Audio
since 1979
Posted By: Ionysus
Date Posted: July 02, 2004 at 11:56 AM
oh sorry i wasnt aware of that, but it makes sense. do you know the capacitance value and the voltage rating as well? i really appreciate your help thanks kevin ------------- -:~^\Brad/^~:-
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