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Old 1st April 2003, 07:16 PM   #1
vic2 is offline vic2  United States
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Default Is this any good?

I have an old Magnavox CDB650 CD player. It was supposed to be good when it came out. Does anyone know anything about it? Any tweaks?

Vic
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Old 2nd April 2003, 10:33 AM   #2
guido is offline guido  Netherlands
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I have one (magnavox):

cdm2: transport, no metal, hard to find for replacement (?)
chipset: SAA7210, SAA7220, TDA1541 (first implementation, no A)
powersupply: ~5 78xx
case: crap plastic (take the top off and lift up one corner...).

There is an extra pcb with a secondary output: put the display powersupply on a sep. small pcb and take it out. Lots of space then to play around.

I have the service manual, but it is in dutch. Could give you the schematics, drop me a mail.

All in all, nothing special.... But a great player to use as source for experiments with own dacs: space and i2s signals available.

Greetings,
GuidoB
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Old 5th April 2003, 06:49 PM   #3
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Lightbulb Philips CD650

Hi Vic,
Maybe you find this interesting:
http://www.shadowfire.de/cgi-bin/page.pl?philipscd650

Guido did you make a new PCB just for the display's powersupply?
I was thinking of cutting the filter/display-powersupply PCB in two in order to make room for my mods!
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Old 5th April 2003, 10:47 PM   #4
guido is offline guido  Netherlands
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Elso,

I don't think Vic can read German... But anyway, it more or less says it is the first player with 7210/7220/tda1541. So the old version of the chipset.

And yes, i put the display powersupply on a small pcb and took out the additional analog output. Lots of room to put diy in.
In the past there was an eringa geluid cd40 output there, if anyone remembers/knows that..

Greetings,
GuidoB
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Old 5th April 2003, 10:49 PM   #5
guido is offline guido  Netherlands
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And check out the post on the cdm4, it seems that this model of cdm4 CAN replace a cdm2! So i have a spare transport now, yeha!

Guido
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Old 9th April 2003, 02:41 AM   #6
vic2 is offline vic2  United States
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Thanks for the replies.

Vic
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