Gut it? Gut it? - diyAudio
Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Everything Else Anything related to audio / video / electronics etc) BUT remember- we have many new forums where your thread may now fit! .... Parts, Equipment & Tools, Construction Tips, Software Tools......

Gut it?
Gut it?
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
Reply
 
Thread Tools Search this Thread
Old 25th May 2003, 07:42 PM   #1
ryoshu is offline ryoshu
diyAudio Member
 
Join Date: Jan 2003
Location: Jersey City, NJ
Lightbulb Gut it?

So I just had a busted Harman Kardon AVR100 dropped in my lap (Not literally, that would hurt). The previous owner had somehow left speaker wires twisted together with the receiver turned on... Needless to say, it's having issues and he's had it sitting around for a couple years with no desire to repair it.

I replaced a few of the fuses that were blown, but the amp blows the fuses and shuts down (protection) after being powered on. I'm not really interested in trying to fix it, and he doesn't want it, so should I gut it?

The transformer is massive and has to be good for something (7 channel gainclone? ;). There are a couple of large sized caps, and the chassis is pretty solid too. If I do gut it, any suggestions on finding out info on the transformer? It's really sexy and I'd hate to pass it up.
__________________
"I love deadlines. I like the whooshing sound they make as they fly by." -- Douglas Adams
  Reply With Quote
Old 25th May 2003, 09:45 PM   #2
pinkmouse is offline pinkmouse  Europe
diyAudio Moderator
 
pinkmouse's Avatar
 
Join Date: Apr 2002
Location: Rotherham, England
Gut it?
Well, the first thing to do is to measure the voltage of the rails, you should be able to do this by just measuring across the caps on each rail to ground.

To get the VA rating, you can estimate it by two methods- firstly, most of the current used by an amp is in the power section, so just look at the value of any fuses and calculate from there. The other less accurate method is that most manufacturers, especially in budget kit, spec. their traffos for the maximum output, with little or no headroom. So, an amp with 5 x 50w channels will probably have a traffo of about 250/300VA.

Good luck
__________________
Rick: Oh Cliff / Sometimes it must be difficult not to feel as if / You really are a cliff / when fascists keep trying to push you over it! / Are they the lemmings / Or are you, Cliff? / Or are you Cliff?
  Reply With Quote

Reply


Gut it?Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


New To Site? Need Help?

All times are GMT. The time now is 10:51 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright ©1999-2017 diyAudio
Wiki