Revox B225 Clock speed

lancer · 19th October 2004, 01:55 PM

Does anyone know what is the clock speed of my CD player? I am thinking upgrading it with a XO kit. Any help is greatly appreciated. Thanks all.

PMik · 19th October 2004, 10:05 PM

B225 http://www.revox.net/info/b225.html

is based on Philips SAA7210/SAA7220/TDA1541A

XClock = 11.2896 MHz

Cheers

Lourens · 20th October 2004, 07:39 PM

The B225 is not based on TDA1541 but on the 14 bits TDA1540. If this implies another clock frequency? I don't know. Maybe this will help:
http://www.thevintageknob.org/1STCD/B225/B225.html

PMik · 20th October 2004, 09:06 PM

Strange!
i have a service manual for B225 and it claims what i have informed

guido · 20th October 2004, 10:52 PM

hi,

with such nice modular build i can imagine a mk2 version.
1983 is a bit early for 1541 i think. Isnt cd304 and cd304mk2 not also the difference between 1540/1541?

anyway, open it and have a look inside.

It's normally either:
- SAA7210/SAA7220/TDA1541 with 11MHz on the 7220 or
- SAA7000/7010/7020/7030/2*TDA1540 with
4.2336MHz on the 7000

If it helps to replace this 4MHz clock with something better, i don't know. God knows how much jitter the logic in the 7000 or 7030 produces

19th October 2004, 01:55 PM	#1
lancer diyAudio Member Join Date: Aug 2003 Location: singapore	Revox B225 Clock speed Does anyone know what is the clock speed of my CD player? I am thinking upgrading it with a XO kit. Any help is greatly appreciated. Thanks all.

19th October 2004, 10:05 PM	#2
PMik diyAudio Member Join Date: Mar 2004 Location: Fort Lauderdale, FL	B225 http://www.revox.net/info/b225.html is based on Philips SAA7210/SAA7220/TDA1541A XClock = 11.2896 MHz Cheers __________________ Mod is fun

20th October 2004, 07:39 PM	#3
Lourens diyAudio Member Join Date: Dec 2003 Location: Utrecht NL	tda1540 not 1541 The B225 is not based on TDA1541 but on the 14 bits TDA1540. If this implies another clock frequency? I don't know. Maybe this will help: http://www.thevintageknob.org/1STCD/B225/B225.html

20th October 2004, 09:06 PM	#4
PMik diyAudio Member Join Date: Mar 2004 Location: Fort Lauderdale, FL	Strange! i have a service manual for B225 and it claims what i have informed __________________ Mod is fun

20th October 2004, 10:52 PM	#5
guido diyAudio Member Join Date: Mar 2002 Location: diepe zuiden	hi, with such nice modular build i can imagine a mk2 version. 1983 is a bit early for 1541 i think. Isnt cd304 and cd304mk2 not also the difference between 1540/1541? anyway, open it and have a look inside. It's normally either: - SAA7210/SAA7220/TDA1541 with 11MHz on the 7220 or - SAA7000/7010/7020/7030/2*TDA1540 with 4.2336MHz on the 7000 If it helps to replace this 4MHz clock with something better, i don't know. God knows how much jitter the logic in the 7000 or 7030 produces __________________ GuidoB


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