NAIM 250 repair help - diyAudio
Go Back   Home > Forums > Amplifiers > Solid State
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

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
Old 23rd June 2007, 02:50 AM   #1
bgrant is offline bgrant  United States
diyAudio Member
Join Date: Jun 2007
Default NAIM 250 repair help


I have a NAIM NAP 250 amp that’s about 15 years old. I’ve had it modified—vishay resistors, protection circuitry removed—so NAIM North America won’t touch it. It has developed distortion in one channel, and I want to get it fixed. I plan to take it to a local place that deals with a broad range of consumer electronics. They seem quite competent and sensitive to my concerns about hi-end sound quality. I have the circuit layout from this site and from the guy in England who recommended the modifications

My questions are:

What specifications does the repair place need to know in order to make sure the amp is operating correctly?

If they need to replace parts—caps and such—what should I recommend they use?

Any other suggestions?


  Reply With Quote
Old 23rd June 2007, 03:03 AM   #2
anatech is offline anatech  Canada
diyAudio Moderator
anatech's Avatar
Join Date: Jun 2004
Location: Georgetown, On
Hi Barry,
If your shop of choice doesn't know, use another shop. Use the original product specifications to determine if it's working to spec.

This is very true of part replacement. I can tell you that if they use ECG or NTE parts, they do not know what they are doing. Also, I am very suspicious of the quality of work and knowledge possessed if that shop repairs TV's and small items as well. Different mindset.

One last thing, I do not blame the NAIM distributor for refusing to work on your amplifier in this state. I don't believe that removing the protection circuit was the wisest move you could have made either. I would make the protection circuit functional again if I were you.

"Just because you can, doesn't mean you should" © my Wife
  Reply With Quote


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
naim CD3 repair distortion Digital Source 9 27th August 2009 04:21 PM
naim nac-52 hollyann Solid State 0 30th July 2008 11:01 PM
Naim Nat 250 hollyann Solid State 0 18th July 2008 06:58 AM
FS Naim IXO chris maw Swap Meet 2 22nd November 2007 07:34 AM
Naim SL2 richie00boy Multi-Way 0 28th September 2004 09:33 AM

New To Site? Need Help?

All times are GMT. The time now is 03:39 AM.

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

Content Relevant URLs by vBSEO 3.3.2