|
|||||||
| Home | Forums | Rules | Articles | Store | Gallery | Blogs | Register | Donations | FAQ | Calendar | Search | Today's Posts | Mark Forums Read | Search |
| Solid State Talk all about solid state amplification. |
  |
|
|
|
Please consider donating to help us continue to serve you.
Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving |
 |
|
|
Thread Tools | Search this Thread |
5th January 2008, 11:22 AM
|
#1 |
|
diyAudio Member
Join Date: Jan 2008
|
AMC 25100 repair
Hi All,
I have an AMC 25100 5x100W amp. While messing around with the cables at the rear I allowed the RCA cable feeding the Ch5 input to contact the + output binding post on Ch1. The result was a loud squeal followed by an acrid smell. I measured the output of Ch1 and found 58VDC present. I removed the circuit board for Ch1 and found one of the output transistors had a huge chunk of plastic blown out. The transistor is an A1386 and I have already ordered a replacement (surprisingly cheap at $8). I will also replace its mate the C3519 for good measure. None of the other components on the board show any obvious signs of overheating. Should I simply replace the power transistors and see how it goes (they're cheap), or is there likely to be damage to other components? I have a signal generator and a CRO but without a circuit diagram I don't know what voltages I should be looking for. Does anyone have a circuit diagram for the amp? |
|
|
| Thread Tools | Search this Thread |
|
|
Similar Threads
|
||||
| Thread | Thread Starter | Forum | Replies | Last Post |
| DIY Car Repair | avatar307 | The Lounge | 6 | 22nd May 2011 10:19 PM |
| DHD should repair? | Solosound | Car Audio | 5 | 9th November 2008 07:39 PM |
| Nad 304 repair | big jim | Solid State | 0 | 30th December 2006 11:19 AM |
| I want to repair my AR9 | S.C | Multi-Way | 5 | 9th May 2004 07:32 PM |
| Help for repair my KSA 100 | Alex helge | Solid State | 76 | 23rd October 2003 03:38 PM |
| New To Site? | Need Help? |
