Very old NEC CD-Player and Chip Set

[zinsula]

Hello Experts!

As I do not have much knowledge in the digital world, I am thinking about playing around with an old CD-Player I have.

The CD-Player is a NEC CD-607E. It hasn't a too bad build quality, and I think many today's drives are much more fragile. The output stage is shielded with sheet metal, and has lots of capacitors. Must be a very high order analogue filter I guess....
The converter is a single BB PCM53 JP-V (I figure out it is the converter…PCM….).
There are also two Yamaha Chips, YM3531 and YM2201F, which, I guess, could have to do with data stream.

Unfortunately, despite searching the web, I couldn't find any datasheet or similar of the above mentioned chips. Also, I was not able to get a service manual for the NEC CD-Player.

Following questions:
- Does anyone know these chips and could give me some more information about?
- Does anyone have more information abour this CD-Player? Perhaps the original player was another one, it was only badged NEC?
- Are there other possibilities to figure out the data stream from drive to the converter, even without any documentation?

Thank you very much for your help!

Cheers, Tino

[carlosfm]

I learned a lesson with my Yamaha CDP.
Yamaha never more.
No docs, no datasheets of the chips...
Yamaha doesn't even bother to repply to e-mails.

This is what I call customer service...
Avoid them as the plague.

Oh, Matsushita (Panasonic) doesn't repply to e-mails too.
A simple mail asking where to find a datasheet of a component not available on their site...
They completely ignore the customer.

When possible, I always prefer to buy a European product.

[fumihiko]

carlosfm sann KONNICHIWA

Yamaha never more.
No docs, no datasheets of the chips...
Yamaha doesn't even bother to repply to e-mails.

This is what I call customer service...

in japan YAMAHA No Docs,No datasheets.......

[carlosfm]

Originally posted by fumihiko
carlosfm sann KONNICHIWA

in japan YAMAHA No Docs,No datasheets.......

I would like to know what do they gain by proceding this way...

Gonna repeat for all the world to listen:

DON'T BUY YAMAHA.

[zinsula]

Ohhh so for the YM.... Chips I will give up any hope....

Ehm, someone knows the PCM53....?

Carlos, I assume you'r talking about electronic Yamaha stuff....not motorcycles
Anyway, a Ducati looks way better

Cheers
Tino

[carlosfm]

Originally posted by zinsula
Ehm, someone knows the PCM53....?

That's very old...
TI doesn't have it on their website (www.ti.com), maby if you contact them.

A search on google with "pcm53 datasheet" gives results, but at least I can't download the file.

[guido]

Originally posted by zinsula
Ohhh so for the YM.... Chips I will give up any hope....

Ehm, someone knows the PCM53....?

Carlos, I assume you'r talking about electronic Yamaha stuff....not motorcycles
Anyway, a Ducati looks way better

Cheers
Tino

PCM53: 16 bit single channel with parallel inputs. So if there is only one they use it for both channels with a left/right switch after it. It needs three supplies (+5,+15,-15).

According to one list i have it is an current output dac, according to another list the output range is only specified in voltage (10V)


So you need drastic measures to get it to work with other dacs, therefore you need the datasheets of the yam chips

[carlosfm]

Originally posted by guido
... you need the datasheets of the yam chips

Hey Guido,

Do you know the Japanese prime-minister?
Does he have influence at Yamaha?
We need some "influence" to get Yamaha datasheets.

Bush?

[Fenris]

Originally posted by zinsula

Carlos, I assume you'r talking about electronic Yamaha stuff....not motorcycles
Anyway, a Ducati looks way better

Cheers
Tino

Yes, Ducs are much better. This time a year ago I was tear-assing through those beautiful Swiss Alps on my ST 4S....

If only they made CD players, they would have great clocking and minimal jitter (Ducati is known for it's handling), decent power supply (good torquey engines, sufficient power but not as much as Jap competitors), solid transport (good old Duc trellis frame), and look sexy as heck. Of course it would cost 50% more than a Japanese model and require regular servicing by a professional, but that's the price you pay.

[zinsula]

Originally posted by carlosfm
A search on google with "pcm53 datasheet" gives results, but at least I can't download the file.

Yes, unfortunately....

Originally posted by guido
PCM53: 16 bit single channel with parallel inputs. So if there is only one they use it for both channels with a left/right switch after it. It needs three supplies (+5,+15,-15).

According to one list i have it is an current output dac, according to another list the output range is only specified in voltage (10V)


So you need drastic measures to get it to work with other dacs, therefore you need the datasheets of the yam chips

I think I must give up any plans to play around with this player.

Originally posted by carlosfm


Hey Guido,

Do you know the Japanese prime-minister?
Does he have influence at Yamaha?
We need some "influence" to get Yamaha datasheets.

Bush?

Originally posted by Fenris


Yes, Ducs are much better. This time a year ago I was tear-assing through those beautiful Swiss Alps on my ST 4S....

If only they made CD players, they would have great clocking and minimal jitter (Ducati is known for it's handling), decent power supply (good torquey engines, sufficient power but not as much as Jap competitors), solid transport (good old Duc trellis frame), and look sexy as heck. Of course it would cost 50% more than a Japanese model and require regular servicing by a professional, but that's the price you pay.

Oh, yes, and I would talk with them about their datasheets and manuals, drinking lots of Chianti and eating Parmigiano...

Nice that you enjoyed the swiss mountains on a Ducati! You brought it to Europe...how? Ship?




Cheers
Tino