Cambridge Audio P50 mystery - 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 16th February 2004, 12:31 PM   #1
diyAudio Member
Join Date: Feb 2004
Location: Winchester
Question Cambridge Audio P50 mystery

Hello there,
I'm new here so apologies if this is a question with an obvious answer- i have searched the archive!

I'm lucky enough to have been given a 1970's cambridge audio p50 amplifier, and have always know it only works in one channel. I would now like to fix it, or get it fixed, but I don't know a) if it's a simple replacement job and b) if it isn't, who can do the job for me.

There is basically no output on one channel, irrespective of the input selected. Maybe there's an output transistor blown but i'm not sure. Any thoughts/recommendations of repairers would be hugely appreciated.

I'm a relatively competent solderer but if it's a tricky job i'd rather leave it to an expert.

Feel free to ask any more questions, I'll try and answer them.

Thanks in advance,
  Reply With Quote
Old 16th February 2004, 02:45 PM   #2
diyAudio Member
Join Date: Feb 2004
Location: manchester
I too was given one of these a few years ago. It had a habit of blowing up. I fixed it a few times, then slung it in the bin!
I used to have a schemi but I lost it (sorry!), Cambridge Audio sent it for nothing as i recall. Does it have fuses for the rails? If the output stage is faulty they would surely blow, and you would have no output either channel.
The quality control on those things was terrible (lots of different sub-contractors building the pcb's), mine was quiet in one channel when using the tape input, turned out it had a wrong value resistor which had been in there since it was made!
Have a good look inside for bad connections, as I remember it has a big wiring loom down the middle .
They are nice sounding ampilifers having said all that.
Give us a shout if you get any further or have any more questions.
  Reply With Quote
Old 17th February 2004, 12:23 PM   #3
diyAudio Member
Join Date: Feb 2004
Location: Winchester
Thanks Raymondo,
I'll get the amp ready for some investigative surgery and let you know if that helps!
  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
Cambridge Audio CD2 Sarion Digital Source 40 4th October 2014 11:33 AM
Cambridge Audio DAC-3 niiico Digital Source 9 14th January 2013 07:37 PM
cambridge audio cd-6 chight Digital Source 0 25th November 2008 05:35 AM
Cambridge Audio 640C No audio output PLEASE HELP! Kajman Digital Source 3 10th December 2007 09:45 AM
Car Audio Mystery ohioboy2 Car Audio 3 17th July 2007 10:14 PM

New To Site? Need Help?

All times are GMT. The time now is 02:49 PM.

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