DCD480 (Denon) upgrade

bibster · 21st March 2007, 12:39 PM

Hi,

Sorry to bother you, it's my first post in this deep dark corner of the diyaudio.com forum...
I just aquired an old denon DCD480, and I'd like to learn to mod it. Not that I expect it to end up being a wonderfull superb source, but just to learn things. Things that I'd apply to some better device later on.

So, I'd most likely need the service manual, right? Or at least the schematic... Anyone?

Key parts in this thing are pcm61P DAC's and mainly RC4558 OpAmp's.

I't like to find out which are the mute-tor's (I guess tr706 and tr707)

What should I replace the rc4558's with? (I don't want to start another xxx vs. yyy threat, please be kind!)
opa2604 ? ne5532? lm6172? opa2132? I haven't got a clue!

Should I make a new +/- xx V PSU for the (or some of the) OpAmp's ? and the DAC's?

Hope to learn a lot,

Paul

mr_push_pull · 24th March 2007, 01:47 PM

Hi Bibster

I sent you an email message.

Regards

21st March 2007, 12:39 PM	#1
bibster diyAudio Member Join Date: Aug 2004 Location: Lasbordes, 11400	DCD480 (Denon) upgrade Hi, Sorry to bother you, it's my first post in this deep dark corner of the diyaudio.com forum... I just aquired an old denon DCD480, and I'd like to learn to mod it. Not that I expect it to end up being a wonderfull superb source, but just to learn things. Things that I'd apply to some better device later on. So, I'd most likely need the service manual, right? Or at least the schematic... Anyone? Key parts in this thing are pcm61P DAC's and mainly RC4558 OpAmp's. I't like to find out which are the mute-tor's (I guess tr706 and tr707) What should I replace the rc4558's with? (I don't want to start another xxx vs. yyy threat, please be kind!) opa2604 ? ne5532? lm6172? opa2132? I haven't got a clue! Should I make a new +/- xx V PSU for the (or some of the) OpAmp's ? and the DAC's? Hope to learn a lot, Paul __________________ Demagogue: One who preaches a doctrine he knows to be untrue to men he knows to be idiots. H.L. Mencken

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24th March 2007, 01:47 PM	#2
mr_push_pull diyAudio Member Join Date: Mar 2004 Location: At the output stage	Hi Bibster I sent you an email message. Regards

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