Wanted: Crown K2 service manual or schematics - diyAudio
Go Back   Home > Forums > Amplifiers > Solid State

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
Reply
 
Thread Tools Search this Thread
Old 29th November 2006, 11:14 AM   #1
diyAudio Member
 
Join Date: Dec 2004
Location: Melbourne, OZ
Default Wanted: Crown K2 service manual or schematics

I'm hoping someone can help me find a service manual or schematics for the Crown K2 amplifier.

I have two dead ones that I want to repair. One has an intermittant fault, and the other one is completely dead. They look reasonably modular so I think I should be able to trace the faults given a set of schematics to work from.

I'm willing to pay for copies if anyone has a set of schematics they could duplicate, or hopefully a service manual.

Thanks everyone,

Len.
  Reply With Quote
Old 15th December 2006, 01:35 AM   #2
diyAudio Member
 
Join Date: Apr 2005
Location: BA
Default crown K2

....let me see if I have in pdf... of course, no charge.

  Reply With Quote
Old 18th December 2006, 11:11 AM   #3
diyAudio Member
 
Join Date: Apr 2005
Location: BA
Default K2 schematics

...I found them, please let me know if you need them yet
  Reply With Quote
Old 18th December 2006, 11:29 AM   #4
MaxS is offline MaxS  France
diyAudio Member
 
Join Date: Mar 2006
Location: France
I' d them

mxs2rds (at) hotmail (dot ) com
__________________
Ca marche pas ! Tu ne l' as pas branché non plus ....
  Reply With Quote
Old 18th December 2006, 01:05 PM   #5
diyAudio Member
 
Join Date: Dec 2004
Location: Melbourne, OZ
Thanks for the offer Alan,

Talk about crazy timing... I just bought a set of crown service manuals off a trader on ebay!!

So thanks again, but I now have all the information I need to get these repaired.. I should have posted something here but I thought the thread had gone cold.

Now here's hoping for a few hours free time to get these repaired. One of these will be going into service as my next sub amp when TC Sounds release their new Neo driver.

- Len.
  Reply With Quote
Old 27th December 2006, 04:39 PM   #6
diyAudio Member
 
Join Date: May 2005
Location: Genesee County, MI
Default RE: Crown K2

I could really use a PDF of the K2 schematics too. If you still have them, let me know.

AJSTAY at AOL Dot Com.

Thanks!
  Reply With Quote
Old 27th December 2006, 08:51 PM   #7
TOINO is offline TOINO  Portugal
diyAudio Member
 
TOINO's Avatar
 
Join Date: Oct 2004
Location: Coimbra
I appreciate if you are kind enough to send me a copy by email...
  Reply With Quote
Old 1st January 2007, 06:29 PM   #8
diyAudio Member
 
Join Date: May 2005
Location: Genesee County, MI
Anyone?

I was able to get one of these that I'm working on to power up by unplugging one of the amplifier boards.

Since I have 3 of them, I'm hoping to combine parts to make at least one of them work. But I would much rather find the schematics and fix them all.

How would one of these compare to a Nady XA-900 in terms of sound quality?
  Reply With Quote
Old 2nd January 2007, 11:28 AM   #9
diyAudio Member
 
Join Date: Dec 2005
Location: silang, cavite
Send a message via Yahoo to audiomachines
me too Allan please send me a copy. here is my email ad jade_808a@yahoo.com, thank you very much. Happy New Year everyone
  Reply With Quote
Old 3rd January 2007, 08:05 PM   #10
diyAudio Member
 
Join Date: May 2005
Location: Genesee County, MI
Got one working so far... There are many small caps that go bad on the large bottom board which cause it not to power up. Mainly the 100uf 25v caps at C6, C9, C23, C24, the 33uf 160v cap at C11, and the 470uf 16v cap at C15.

And almost all of the 2.2uf bipolar caps were bad as well.

I decided to completely recap these amps (with exception of the large filter caps) with high grade caps from Panasonic and United Chemi-con.

And watch the filter caps on the output boards. They hold a charge forever and have over 100 volts across them. I discharged them through a resistor several times and still got a good shock off them after they sat for a few minutes. And it's a pain to remove the output boards, they get stuck to the thermal pad pretty good

Also had to swap out one of the output boards, I'll take a look at that shortly.

I could really use the schematics though. Kinda hard doing this without them.
  Reply With Quote

Reply


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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Vincent SP-997 schematics/service manual wanted movie_fan Solid State 0 26th January 2006 11:53 PM


New To Site? Need Help?

All times are GMT. The time now is 04:47 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright ©1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2