Cambridge audio Azur C540 CD mod. - diyAudio
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Old 14th February 2011, 09:51 PM   #1
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Default Cambridge audio Azur C540 CD mod.

I got this CD player for free from a friend, it's lacking it's torroid transformer. I was thinking of using the transformer from a NAD C515BEE - Could this work? I don't have any specifications on the Cambridge transformer so I don't know myself. When that problem is fixed, this baby is up for some modding, so post me some ideas on what to do with it
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Old 15th February 2011, 09:10 AM   #2
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Quote:
Originally Posted by m0rt4l1ty View Post
I got this CD player for free from a friend, it's lacking it's torroid transformer. I was thinking of using the transformer from a NAD C515BEE(This unit has a broken laser pickup) - Could this work? I don't have any specifications on the Cambridge transformer so I don't know myself. When that problem is fixed, this baby is up for some modding, so post me some ideas on what to do with it
Could I take the main board and powerboard + transformer from the nad and remove the cambridge mainboard, and powerboard. So basicly, use the wolfson DAC's and the laser assembly in the Cambridge, and connect these to NAD components from the other cd player?
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Old 15th February 2011, 05:07 PM   #3
ide2003 is offline ide2003  Indonesia
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hi there, just recently modded tweaks the big brother 640C. Found out the hard way that this player is very choosy in components. Not all boutique parts will give better sound compared to original ones

here is my list of the ones that works for me on the 640C, and tranny is not changed though might works for you

mains filter cap to vishay,
on servo board : 2 big litycs to Panasonic FC 2200uF each, some Oscon's but not all, diodes to telefunken SF4007
on DAC board : some oscon's also not all, SF4007 is not good here, opamp (of course ) to YD2200, some R's around opamp to Rikens and C coupling out to Nichicon 4.7uF paper in oil

good luck
TeguhPS
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Old 16th February 2011, 12:19 AM   #4
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Quote:
Originally Posted by ide2003 View Post
hi there, just recently modded tweaks the big brother 640C. Found out the hard way that this player is very choosy in components. Not all boutique parts will give better sound compared to original ones

here is my list of the ones that works for me on the 640C, and tranny is not changed though might works for you

mains filter cap to vishay,
on servo board : 2 big litycs to Panasonic FC 2200uF each, some Oscon's but not all, diodes to telefunken SF4007
on DAC board : some oscon's also not all, SF4007 is not good here, opamp (of course ) to YD2200, some R's around opamp to Rikens and C coupling out to Nichicon 4.7uF paper in oil

good luck
TeguhPS
Could you check it for it's transformer rating? I'll keep that in mind when I order parts.
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Old 19th February 2011, 04:12 PM   #5
ide2003 is offline ide2003  Indonesia
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nope, on 640C it is covered with copper plated steel can, but the size is about 4" in diameter, quite big, maybe 3 amps?
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Old 20th February 2011, 01:49 PM   #6
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if you can find out the type of voltage regulators used in the power section it should be doable to deduct the transformer voltages, the current req can be guessed....and more current capability in a tranny is ususally better ;-)

Alternatively try contacting Cambridge Audio for the transformer specs, that should be no secret.
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Old 20th February 2011, 04:52 PM   #7
ide2003 is offline ide2003  Indonesia
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Hi marcel I recalled some 7905, 7805 etc, quite a lot of regs there. I have the 640c service manual, pm me if you guys want it

regards
TeguhPS
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Old 20th February 2011, 06:01 PM   #8
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ide2003, so loads of +5V and -5V used, so one winding will be for approx 8 volt (should check the voltage drop of the xx05 regs)
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Old 21st February 2011, 12:03 PM   #9
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Originally Posted by marcelnl View Post
ide2003, so loads of +5V and -5V used, so one winding will be for approx 8 volt (should check the voltage drop of the xx05 regs)
Thanks, I love this forum man. So good people!

Where could one purchase good priced(good quality) transformers then?
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Old 21st February 2011, 01:43 PM   #10
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I found this specification on the transformer! (Got the service manual mailed to me from the support, thanks for the offer ide2003)

115V/230V AC10V/2A 16*2/0.5A E S -57-669
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