Help me mod Pioneer PD-S505/605

Bassivus · 9th September 2006, 09:39 AM

Hi,

I am planning to upgrade my player to decent standalone player but I bought it primarily for transport/DAC use(I don't own no DAC yet!) I have no education in electrics, but I have some previous experience, tweaking my Philips 721 CDP and building WNA headamp.

My basic strategy is:

1. Upgrade power section with pretty toroid, Caps....
2. Clock it with KwakClock
3. For analog section swap the NJM4558 with some AD826 ...

I already changed power cord, and am in process of making the case stronger and resonant proof...

I found the free scheme for download:

http://www.eserviceinfo.com/download...r_pd-s605.html
(scroll the page down a bit for the Download link)

I have no clue what toroid to look for. Would it be better to use two smaller ones etc. How to regulate etc.

Sorry for bad English

Bassivus · 9th September 2006, 04:21 PM

Here is the pic of the cable I made for CDP

Leolabs · 10th September 2006, 01:34 AM

Quote:

I have no clue what toroid to look for

You may try Nuvotem Talema,they have pinned board version.

Bassivus · 10th September 2006, 09:09 AM

Thanks for the reply,

In fact I meant I’m clueless about something else. I would not worry if one could not drop in place of old transformer since there is LOTS of space for the bigger one. I was planning to get one of my local manufacturers: www.trafomatic.com

What I wonder is if its better to get one bigger – perhaps 50 or 80VA for both digital and audio or leave the old one in place for digital and use new one just for audio section (or vice versa). I just know I need 230Vprimary but I don’t know what to look for in secondary in both cases???

Ruach · 11th September 2006, 04:40 AM

Hi,

If you can post up an internal picture of the Pioneer, then it will be easy for anyone to offer any tips on modding

Bassivus · 11th September 2006, 04:53 PM

Pics coming!!!

PSU

Bassivus · 11th September 2006, 04:55 PM

just some wima bypas

Bassivus · 11th September 2006, 05:03 PM

Here is part of shematics for analog out:

Bassivus · 11th September 2006, 05:07 PM

and the board itself...

Bassivus · 11th September 2006, 05:13 PM

You can see I just "prepared" the OpAmp for quick change

9th September 2006, 09:39 AM	#1
Bassivus diyAudio Member Join Date: Aug 2004 Location: Novi Sad, Vojvodina	Help me mod Pioneer PD-S505/605 Hi, I am planning to upgrade my player to decent standalone player but I bought it primarily for transport/DAC use(I don't own no DAC yet!) I have no education in electrics, but I have some previous experience, tweaking my Philips 721 CDP and building WNA headamp. My basic strategy is: 1. Upgrade power section with pretty toroid, Caps.... 2. Clock it with KwakClock 3. For analog section swap the NJM4558 with some AD826 ... I already changed power cord, and am in process of making the case stronger and resonant proof... I found the free scheme for download: http://www.eserviceinfo.com/download...r_pd-s605.html (scroll the page down a bit for the Download link) I have no clue what toroid to look for. Would it be better to use two smaller ones etc. How to regulate etc. Sorry for bad English

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10th September 2006, 09:09 AM	#4
Bassivus diyAudio Member Join Date: Aug 2004 Location: Novi Sad, Vojvodina	Thanks for the reply, In fact I meant I’m clueless about something else. I would not worry if one could not drop in place of old transformer since there is LOTS of space for the bigger one. I was planning to get one of my local manufacturers: www.trafomatic.com What I wonder is if its better to get one bigger – perhaps 50 or 80VA for both digital and audio or leave the old one in place for digital and use new one just for audio section (or vice versa). I just know I need 230Vprimary but I don’t know what to look for in secondary in both cases???

11th September 2006, 04:40 AM	#5
Ruach diyAudio Member Join Date: May 2003 Location: Singapore	Hi, If you can post up an internal picture of the Pioneer, then it will be easy for anyone to offer any tips on modding

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