Go Back   Home > Forums > Source & Line > Digital Source

Digital Source Digital Players and Recorders: CD , SACD , Tape, Memory Card, etc.

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 21st May 2008, 03:17 AM   #1
Cormac is offline Cormac  United States
diyAudio Member
 
Join Date: May 2008
Default Modding a Cambridge AZUR 740C

I am modifying a Cambridge 740C CD player and I would like to have a schematic to simplify the process.
Any help would be appreciated.
Thanks,Cormac
  Reply With Quote
Old 22nd May 2008, 06:39 AM   #2
Mooly is offline Mooly  United Kingdom
diyAudio Moderator
 
Mooly's Avatar
 
Join Date: Sep 2007
No takers on this one . Perhaps everyones happy with them as they are.
Can't help with your question really as I have never seen in one, but I am interested to know what you think of it ? I take it you have had the top off. What does the quality of the parts look like, particularly the electroylitics, have they got a make on them ( always a good indication ). Can you tell what Op Amps are used at the outputs, assuming it does use them and isn't discrete.
And how do you rate it overall as a player.
Regards Karl
  Reply With Quote
Old 22nd May 2008, 06:55 AM   #3
Thomo is offline Thomo  United Kingdom
diyAudio Member
 
Thomo's Avatar
 
Join Date: Nov 2006
Have you tried emailing Cambridge Audio? They're usually really helpful folks, and have sent me a few manuals in the past.

Lee.
__________________
/\/\/\/\/\/\/\/
  Reply With Quote
Old 22nd May 2008, 05:40 PM   #4
Cormac is offline Cormac  United States
diyAudio Member
 
Join Date: May 2008
I contacted Cambridge directly and had a schematic in about 2 mins,
sorry to waste peoples time. The 740C is built to a price point and is not full of audiophile approved parts. The analogue stage has three opamps in it,two NE5532s and a OP275. I would say the technology is in the player that would yield a favorable outcome when the analogue stage is brought up to speed.
Cormac
  Reply With Quote
Old 22nd May 2008, 06:05 PM   #5
Thomo is offline Thomo  United Kingdom
diyAudio Member
 
Thomo's Avatar
 
Join Date: Nov 2006
I would agree, even the lower range cambridges sound very nice modded. I am just replacing the entire output section of a 640C v1 with a fully discrete class a output stage, one channel done and sounding fantastic.

Good luck with the mods.

Lee.
__________________
/\/\/\/\/\/\/\/
  Reply With Quote
Old 23rd May 2008, 11:28 AM   #6
rabbitz is offline rabbitz  Australia
diyAudio Member
 
rabbitz's Avatar
 
Join Date: Jul 2003
Location: Newcastle, Australia
Quote:
Originally posted by Cormac
The 740C is built to a price point and is not full of audiophile approved parts.
My 840C has no go faster bits but it's all been implemented very well IMO. Even the laser is an el cheapo Sanyo SF-P101 but all the parts add up well to make it sing. The smarts is in the design and not the quality of parts.
  Reply With Quote
Old 23rd May 2008, 11:41 AM   #7
Mooly is offline Mooly  United Kingdom
diyAudio Moderator
 
Mooly's Avatar
 
Join Date: Sep 2007
That's interesting. Often fancied the 840 as a possible replacement for my MicroMega Stage 2. An easy to get (cheap) laser unit is a major plus point. Did you just take a chance on it, or did you compare with any others ? I wonder if there are any new models in the pipeline as well at Cambridge.
Regards Karl

Edit, In fact CPC have the SFP101 ( two types 15pin and 16pin ? ) at the outrageous price of 5.51 and 7.47
  Reply With Quote
Old 23rd May 2008, 03:24 PM   #8
rabbitz is offline rabbitz  Australia
diyAudio Member
 
rabbitz's Avatar
 
Join Date: Jul 2003
Location: Newcastle, Australia
I did a lot of research on the 840C and seemed to have the goods and thankfully it does. There's not too many unhappy owners out there from my research.

The only CD player I compared it to was my existing slightly modded Sony CDP-X55ES and the Cambridge does have an edge.

I'm sure Cambridge will have a V2 or whatever coming up soon as it's what they seem to do. They've just done the 840A V2 and added the 840E and 840W so the CD player must be on the list. There's not many of their products left that do not have a V2 behind their name.
  Reply With Quote
Old 23rd May 2008, 03:37 PM   #9
Thomo is offline Thomo  United Kingdom
diyAudio Member
 
Thomo's Avatar
 
Join Date: Nov 2006
Cormac, is there any chance you could email me that service manual please? Your email is disabled on the forum, but mine is:
lee at diyhi-fi.co.uk
__________________
/\/\/\/\/\/\/\/
  Reply With Quote
Old 23rd May 2008, 05:01 PM   #10
diyAudio Member
 
Join Date: Jun 2004
Location: sheffield
Send a message via MSN to sq225917
according to 'tons of fun', CA support guy there was no v2 840 in the pipes earier this year.


To be honest there's nothng they can do with it, it requires a lot of chnages to make it better.

it took a new clock, new clock regs, all new op-amps and new dac regs before mine sounded appreciably different.

the new dac regs removed that last vestiage of digitalitis.
__________________
hoping to pick up some things.
  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
Modding Azur 640A i2k92 Solid State 115 17th April 2014 06:48 AM
Cambridge Audio Azur 640C V1 dome406 Digital Source 12 15th December 2012 08:18 AM
Rotel RCD-991 vs. Cambridge Azur 640C v.2 Lyra Digital Source 5 24th May 2008 09:26 AM
Cambridge Azur 640C Heat fault fandfac Digital Source 3 25th March 2008 01:28 AM
Smart Thinking! Cambridge Azur 340A lineup Everything Else 0 15th January 2007 02:00 AM


New To Site? Need Help?

All times are GMT. The time now is 02:51 AM.


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