Philips cd 471

diymax62 · 17th October 2007, 08:18 AM

I recently bought an old Philips CD471 player (7 euro, on ebay, shame on me

). It uses the 1541a Philips chip, and I must admit that it sounds really well (after I've changed the Lm833 with a pair of AD826): punchy, dynamic, very good midrange with that sort of "vintage" and happyness in the sound that make it enjoyable, nothing to compare with the plethora of 1bit sigma-delta cheap converters .
I'd like to mod it, not in a strong way as it is fairly good for its use, but just to have some fun, but I can't manage to find the service manual or simply the schematics. Any1 can help?

A great salute

Max

Angelm · 18th October 2007, 08:06 AM

Try this mod:
http://www.dcaudio.kgb.pl/nos.htm

The sound become more open and bright.
I have service manual for CD473, it is almost the same.
Just post your e-mail.

diymax62 · 18th October 2007, 12:19 PM

Hello Angelm, thanks a lot for the suggestion. I'm little scared to manage digital electronics (I never do it), I feel better in the field where I've collected my experience: analog audio. I see that this mod is applied to the tda1541; can it be good for the 1541a also?

A big thanks for the CD473 schematics, too, I can't understand why it's so difficult to find more information in the net...

my email is

libermax at tiscali.it (just change " at " with "@"

)

A great salute

Max

diymax62 · 19th October 2007, 05:51 PM

All OK, Angel, thanks a lot

tirook · 3rd February 2009, 03:35 PM

Hello,
Could-you send me the philips CD 573 service manual please.
Thank's

Christophe.deresseguier at gmail.com

schtef · 5th February 2009, 12:03 PM

I just got an cd473. I started with sam modifications (NOS, tda capacitors). It would be allot easier to continue if I had the service manual. Could you please send me the manual.
Thnx in advance...

tirook · 5th February 2009, 01:50 PM

I've got a dutch print.
give me your email and i'll send it to you.

christophe.deresseguier at gmail.com

powerflux · 26th June 2009, 03:58 PM

Quote:

Originally posted by Angelm
Try this mod:
http://www.dcaudio.kgb.pl/nos.htm

The sound become more open and bright.
I have service manual for CD473, it is almost the same.
Just post your e-mail.

hi, i have trouble with a cd471, could you send me the service manual?
powerflux at gmail.com

amc184 · 27th June 2009, 02:16 AM

Quote:

hi, i have trouble with a cd471, could you send me the service manual?

Done.

powerflux · 27th June 2009, 06:19 AM

Quote:

Originally posted by amc184

Done.

i'm afraid something didn't go right, i've checked my inbox and the 'spam' but no schematic.

17th October 2007, 08:18 AM	#1
diymax62 diyAudio Member Join Date: Nov 2004 Location: rome	Philips cd 471 I recently bought an old Philips CD471 player (7 euro, on ebay, shame on me ). It uses the 1541a Philips chip, and I must admit that it sounds really well (after I've changed the Lm833 with a pair of AD826): punchy, dynamic, very good midrange with that sort of "vintage" and happyness in the sound that make it enjoyable, nothing to compare with the plethora of 1bit sigma-delta cheap converters . I'd like to mod it, not in a strong way as it is fairly good for its use, but just to have some fun, but I can't manage to find the service manual or simply the schematics. Any1 can help? A great salute Max

5th February 2009, 12:03 PM	#6
schtef diyAudio Member Join Date: Nov 2004 Location: ZG	service manual I just got an cd473. I started with sam modifications (NOS, tda capacitors). It would be allot easier to continue if I had the service manual. Could you please send me the manual. Thnx in advance...

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18th October 2007, 08:06 AM	#2
Angelm diyAudio Member Join Date: Mar 2003 Location: Sofia	Try this mod: http://www.dcaudio.kgb.pl/nos.htm The sound become more open and bright. I have service manual for CD473, it is almost the same. Just post your e-mail.

18th October 2007, 12:19 PM	#3
diymax62 diyAudio Member Join Date: Nov 2004 Location: rome	Hello Angelm, thanks a lot for the suggestion. I'm little scared to manage digital electronics (I never do it), I feel better in the field where I've collected my experience: analog audio. I see that this mod is applied to the tda1541; can it be good for the 1541a also? A big thanks for the CD473 schematics, too, I can't understand why it's so difficult to find more information in the net... my email is libermax at tiscali.it (just change " at " with "@" ) A great salute Max

19th October 2007, 05:51 PM	#4
diymax62 diyAudio Member Join Date: Nov 2004 Location: rome	All OK, Angel, thanks a lot

3rd February 2009, 03:35 PM	#5
tirook diyAudio Member Join Date: Feb 2009	Hello, Could-you send me the philips CD 573 service manual please. Thank's Christophe.deresseguier at gmail.com

5th February 2009, 01:50 PM	#7
tirook diyAudio Member Join Date: Feb 2009	I've got a dutch print. give me your email and i'll send it to you. christophe.deresseguier at gmail.com

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