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Old 26th February 2004, 08:10 PM   #1
Peng is offline Peng  Netherlands
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Default philips cd604/614 schematics

Looking for schematics of the philips cd604/614 and/or datasheets of the following chips: xc409026p and m50423fp.

I just obtained this player (the cd614 actually - with r.c.) mainly for the cdm4/19 as sparepart for my cd850mkII that i'm now using with the dddac1543. This combination -dddac1543 and cd850mkII/sp/dif - sounds very, very good btw, with gainclone and pied pipers( these sound better on the gainclone then my Buschhorns with fostex drivers).

The cd614 is working but the sound is not very good -spdif and analog out - very flat and boring.

I probably will try to get the pcb designed by purer for the cdm4 after he finished and tested it.......
CD Transportmechanics quality

For now, I just want to see what i can do myself to improve the cd614.

Anyone ?

Peng
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Old 26th February 2004, 09:40 PM   #2
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Peng,

Just make another dddac with 4 TDA1543 without CS8412, reclocking circuit and XO clock. Then simply connect the egsisting TDA1543 from cd player (pins 1-4 only) to dddac with 4 wires and you are done... if you don't mined to listen 4Fs and digital filter. I have done this in mine 614 and sound is fine. Now you can even compare the sound from both: os+dig.filter vs nonos filterless dac.

Regards, aparatusonitus
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Old 26th February 2004, 10:08 PM   #3
Peng is offline Peng  Netherlands
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Default os + dig.filter

Thanks aparatusonitus,
I was already thinking along those lines but actually wanted to go a bit further and bypass os and filter. Is there no way to do this?
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Old 27th February 2004, 12:48 AM   #4
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No, as far as I know.
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Old 27th February 2004, 04:54 PM   #5
Peng is offline Peng  Netherlands
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Default XC409026P

I cannot find anything on the xc409026p. Is there nobody that has some info (datasheet or even just pinout )?
If not i probably just have to wait for purer's board....
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Old 27th February 2004, 06:07 PM   #6
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The service manual of the 604/614 has the pinouts.
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Old 28th February 2004, 08:53 AM   #7
Peng is offline Peng  Netherlands
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Default pinout

Thanks for the tip ultranalog.
I'll send you a mail.

greetz
Peng
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