Help me mod Pioneer PD-S505/605 - diyAudio
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Old 9th September 2006, 09:39 AM   #1
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Default 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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Old 9th September 2006, 04:21 PM   #2
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Here is the pic of the cable I made for CDP
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File Type: jpg power-cable.jpg (72.7 KB, 904 views)
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Old 10th September 2006, 01:34 AM   #3
Leolabs is offline Leolabs  Malaysia
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Quote:
I have no clue what toroid to look for
You may try Nuvotem Talema,they have pinned board version.
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Old 10th September 2006, 09:09 AM   #4
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Thanks for the reply,


In fact I meant Im 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 dont know what to look for in secondary in both cases???
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Old 11th September 2006, 04:40 AM   #5
Ruach is offline Ruach  Singapore
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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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Old 11th September 2006, 04:53 PM   #6
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Pics coming!!!

PSU

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File Type: jpg power-u.jpg (54.4 KB, 901 views)
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Old 11th September 2006, 04:55 PM   #7
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just some wima bypas
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Old 11th September 2006, 05:03 PM   #8
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Here is part of shematics for analog out:
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File Type: jpg analogsection.jpg (89.8 KB, 839 views)
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Old 11th September 2006, 05:07 PM   #9
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and the board itself...
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Old 11th September 2006, 05:13 PM   #10
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You can see I just "prepared" the OpAmp for quick change
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