Nakamichi OMS-2 modification questions...

[manxam]

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]

Hi manxam,

is it equipped with BB PCM56dacs?

Martijn

 

[manxam]

Martijn, it appears it's a BB PCM54HP DAC

No upgrade for me? 😛

Thanks

 

[rfbrw]

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]

Manxam,
is there only one dac?

Martijn

 

[manxam]

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]

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]

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