Nakamichi OMS-2 modification questions...

manxam · 5th January 2004, 02:19 AM

OK, so I'm new to the whole audio modifying thing but i'm fairly decent with electronics on a whole. I have an old Nakamichi OMS-2 (circa 1988) that I don't mind screwing up so I was wondering if there is anything I can do to this thing to modernize it.

Anyone have any schematics or know of anything that can be changed internally to make it a decent CD player for this day and age?

Any insight would be appreciated.

Thanks

martijn · 5th January 2004, 09:24 PM

Hi manxam,

is it equipped with BB PCM56dacs?

Martijn

manxam · 7th January 2004, 12:07 AM

Martijn, it appears it's a BB PCM54HP DAC

No upgrade for me? :P

Thanks

rfbrw · 7th January 2004, 12:23 AM

Parallel input dac

depending how much work you want to put in and/or the digital filter you should be able to do something.
What digital filter does it use?

martijn · 7th January 2004, 12:25 AM

Manxam,
is there only one dac?

Martijn

manxam · 7th January 2004, 11:03 PM

It appears so Martijn. There is only the one BB chip on the board and i don't recognize the markings on the other chips.

martijn · 7th January 2004, 11:47 PM

Hi manxam,

your OMS2 has a digital interface, between filter and dac, which I am not familiar with.So I can not help you regarding upgrading.
By the way, the pcm54 has 1 converter for 2 channels.....
Sorry.Perhaps someone else can help.

Martijn

rfbrw · 8th January 2004, 12:42 AM

In the early days of cd audio one dac was often shared between channels. Can you list the markings on the other chips?

5th January 2004, 02:19 AM	#1
manxam diyAudio Member Join Date: Dec 2003 Location: Ontario	Nakamichi OMS-2 modification questions... OK, so I'm new to the whole audio modifying thing but i'm fairly decent with electronics on a whole. I have an old Nakamichi OMS-2 (circa 1988) that I don't mind screwing up so I was wondering if there is anything I can do to this thing to modernize it. Anyone have any schematics or know of anything that can be changed internally to make it a decent CD player for this day and age? Any insight would be appreciated. Thanks

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5th January 2004, 09:24 PM	#2
martijn diyAudio Member Join Date: Nov 2003 Location: nl	Hi manxam, is it equipped with BB PCM56dacs? Martijn

7th January 2004, 12:07 AM	#3
manxam diyAudio Member Join Date: Dec 2003 Location: Ontario	Martijn, it appears it's a BB PCM54HP DAC No upgrade for me? :P Thanks

7th January 2004, 12:23 AM	#4
rfbrw diyAudio Member Join Date: Oct 2001 Location: .	Parallel input dac depending how much work you want to put in and/or the digital filter you should be able to do something. What digital filter does it use?

7th January 2004, 12:25 AM	#5
martijn diyAudio Member Join Date: Nov 2003 Location: nl	Manxam, is there only one dac? Martijn

7th January 2004, 11:03 PM	#6
manxam diyAudio Member Join Date: Dec 2003 Location: Ontario	It appears so Martijn. There is only the one BB chip on the board and i don't recognize the markings on the other chips.

7th January 2004, 11:47 PM	#7
martijn diyAudio Member Join Date: Nov 2003 Location: nl	Hi manxam, your OMS2 has a digital interface, between filter and dac, which I am not familiar with.So I can not help you regarding upgrading. By the way, the pcm54 has 1 converter for 2 channels..... Sorry.Perhaps someone else can help. Martijn

8th January 2004, 12:42 AM	#8
rfbrw diyAudio Member Join Date: Oct 2001 Location: .	In the early days of cd audio one dac was often shared between channels. Can you list the markings on the other chips?

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