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

Solid State Talk all about solid state amplification.

Europower EP2500
Europower EP2500
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
Old 7th January 2012, 06:03 PM   #1
timwebb is offline timwebb  United States
diyAudio Member
Join Date: Jan 2010
Location: memphis tn
Default Europower EP2500

hi everyone. i have a ep2500 that im repairing. the output transistors are shorted.anything else i should on this amp? any common issues?..thanks!!!
  Reply With Quote
Old 12th January 2012, 04:53 AM   #2
diy didi is offline diy didi  South Africa
diyAudio Member
Join Date: Sep 2009
Location: Pretoria
Check all Zeners!!!! Replace bias trimpot, almost certainly shot!!
Check emitter resistors!!!
  Reply With Quote
Old 31st January 2012, 07:13 PM   #3
LAJ is offline LAJ  United States
diyAudio Member
Join Date: Mar 2008
Location: Atlanta Ga. USA
Default Check final output op amps for DC.

Should be none. Usually if outputs short it will carry the final op amp.
Also physically remove the bias pots and check them for open.
The OTA op amps were OK in mine.
When I rebuilt mine I found that 13 ohms is the perfect setting for the bias pots (so I installed fixed resistors).
The factory pots are really crappy.
  Reply With Quote


Europower EP2500Hide 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

Similar Threads
Thread Thread Starter Forum Replies Last Post
Wanted: Behringer Europower EP2500 Schematics steve_v Instruments and Amps 8 9th September 2012 03:38 PM
help with europower ep-2500 strat1953 Solid State 28 1st February 2012 08:08 AM
Behringer Europower EP1500 sterjess Instruments and Amps 1 27th March 2010 08:41 AM
Berhinger Europower PMH5000 dawit Class D 1 3rd December 2009 01:10 PM
need scmh. for europower pmh660m stan cooper Solid State 4 16th May 2009 01:38 PM

New To Site? Need Help?

All times are GMT. The time now is 01:17 AM.

Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.79%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright ©1999-2017 diyAudio