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

PA Systems A forum for discussion of all parts of a sound reinforcement or DJ system: loudspeakers, mixers (desks) etc.

Crown k2 help
Crown k2 help
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 27th June 2020, 05:17 PM   #1
Tonal1 is offline Tonal1
diyAudio Member
 
Join Date: May 2020
Default Crown k2 help

Hi,I need a bit of help with a crown k2 that I'm trying to repair.the problem is that the amp seems to be power cycling,when feeding a signal the signal lights will glow brighter as does the power light but then the audio cuts out and all lights dim as if the amp is going to sleep but then will kick in again randomly.

I put a link in to bypass the sleep circuit but the problem persists

I removed the input board and there is nothing obvious.

Any help is appreciated
  Reply With Quote
Old 27th June 2020, 05:45 PM   #2
JonSnell Electronic is offline JonSnell Electronic  United Kingdom
diyAudio Member
 
JonSnell Electronic's Avatar
 
Join Date: Dec 2012
Location: The Jurassic Coast, England. GB
Is it power supply or power related.
What happens when you test the output transistors, wait until total discharge first!
__________________
Support for Fender, Marshall and all Valve Equipment; Audio Innovations, Audiorama FU29, Quad and Leak. www.jonsnell.co.uk
  Reply With Quote
Old 27th June 2020, 06:15 PM   #3
Tonal1 is offline Tonal1
diyAudio Member
 
Join Date: May 2020
Haven't got too far into it yet,was hoping a sleep bypass would do something for it
Will have a closer look at it on Monday And report back
  Reply With Quote
Old 3rd July 2020, 12:18 AM   #4
cardinal is offline cardinal  United States
diyAudio Member
 
Join Date: Feb 2006
Location: Michigan
I have K2 with the exact problem but remedies itself when warmed up. Sleep mode was bypassed long ago. Did you find the cause?
  Reply With Quote
Old 3rd July 2020, 07:06 PM   #5
Tonal1 is offline Tonal1
diyAudio Member
 
Join Date: May 2020
Haven't had a chance to look at it this week,hopefully get some time on it in the next couple of days.

The last time I looked at it I found a suspect resistor and a couple of caps but didn't have time to investigate further.

I read some where that 100uf caps either on the input board or main board are the first to let go

I will update when I get any new info
  Reply With Quote
Old 5th July 2020, 04:41 PM   #6
Tonal1 is offline Tonal1
diyAudio Member
 
Join Date: May 2020
Here's a link to a article which gives a good idea where to start

Crown K2 power amplifier repair << Kris Repairs, and Builds Stuff
 

Reply


Crown k2 helpHide 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
FS: Two Crown XLS 1502 Amps & One Crown XLS 1000 Amp jimiw Swap Meet 3 16th July 2016 04:54 PM
Another Crown 602 Ancient Engineer Solid State 5 19th October 2011 09:11 AM
Crown D-75 Amp Army25R Solid State 5 25th November 2010 06:21 PM
Crown Com-Tech 210 Power Amplifier Crown Com-Tech 210 tyler477 Solid State 1 31st October 2008 04:24 AM
QSC/Crown and the like Madmike2 Solid State 4 3rd May 2005 10:38 AM


New To Site? Need Help?

All times are GMT. The time now is 11:47 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.79%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
Copyright ©1999-2020 diyAudio
Wiki