Marantz CD63 & CD67 mods list

[6h5c]

Originally Posted by Thomo

Dac datasheet says 2's Complement MSB First. Is that not i2s?

Cheers, Lee

Hi Lee!

Yes it is! You didn't think Philips would use a Japanese format with their own bus, did you?

Here's a PDF on the I2S-bus. Look at page 2, 3.1 Serial Data. It's left-justified, with MSB first on a fixed position. The SM5872 can handle I2S when the 'IIS-flag' is '1'.

There's more on page 16 and 17 of the SAA7345 datasheet, under 'DAC interface'. CD63 and 67 use mode 3.

Ray

[6h5c]

Originally Posted by UV101

Thanks Ray!!

No those caps are Nichicon Fine Gold 5600uF. All the regs are commercial basic opamp feedback regs (Audiocom super reg 2's) except for the SAA7220 which has a std 317 in the pic here but now has a twin 317 tracking pre reg. The output stage is simply a pair of single Burson opamps with 2n2 and ???ohm feedback and dc blocking is via 4.7uF Ampohm wire wound. There's also a Trichord clock 4 with another supre reg 2 on it! The clocking is pretty good on this board too as you can get all the clock feeds direct from the divider chip (which would be better with its own reg too!!!) How are you getting on with yours?

And......you have your daughter at the computer already! how's she doing with the pink iron????

We postponed the Pink Iron until further notice, we have to work on her hand-eye coördination first. Now she's just poking holes in the carpet . We celebrated her first birthday last weekend!

Nice setup! I'm still using the standard on-board LM317's. It's my first 1541 DAC, so I want to explore a bit first, see how it sounds. I'm going to use a Flea for clocking and have plenty of Black Gates on the board. It's working now, and almost finished. First impression of the sound is good, but i'm still rolling opamps.

Did you use the on-board 4040 just for the 7220, or did you also clock the 1541 directly? I'm planning to cut the BCK and WS traces to the DAC and hook it up to the 4040 as well. The 176.4kHz is available at Q5.

Regards,

Ray

[Thomo]

Originally Posted by 6h5c

Hi Lee!

Yes it is! You didn't think Philips would use a Japanese format with their own bus, did you?

Here's a PDF on the I2S-bus. Look at page 2, 3.1 Serial Data. It's left-justified, with MSB first on a fixed position. The SM5872 can handle I2S when the 'IIS-flag' is '1'.

There's more on page 16 and 17 of the SAA7345 datasheet, under 'DAC interface'. CD63 and 67 use mode 3.

Ray

Aha. Wonderful, many thanks Ray I must admit, I was wondering why they'd not used their own format, lol.

I'm gonna run out the i2s into my TDA1541 dac box and use the cd63 as a transport.

Has it been a year already since your daughter was born? Wow, time really flies and I still have that joy to come.

Cheers, Lee.

[Honda Z50M]

Originally Posted by SimontY

602, lovely speaker at £300. You'd have to take a battered set at £100 though. I used to have a series 2 set, very pleasant midrange and bass and ok treble. Only the treble lets down B&Ws (all of them it seems).

Lets hope I pick up a bargain then, currently using Gale gold monitors.

Tom

[6h5c]

Shouldn't be a problem Lee! I once hooked-up an ezDAC board to the decoder of a CD72, same situation, worked fine.

Yep, one year later already! Any time soon for you, or just future plans? Here she is enjoying her first birthday-cake . Note the elastic bands around my CD collection on the left .

Ray

[Thomo]

Ah nice. How has she not got it all over her face? If I visit Holland again, can she teach me how to eat so tidily? My wife says I'm terrible, lol.

Another question then: Can the saa7345 accept 11.2896mhz clock? The datasheet seems a little sketchy here, although it does say 8-35MHz on page 2. I'll just have to try and find out

Cheers, Lee.

[Fidelity Audio]

That's because you just drop your face onto your plate!

Brent

[Thomo]

Originally Posted by rowemeister

That's because you just drop your face onto your plate!

Brent

Aha, all these years and I just never got it

[SimontY]

Lee, stop making me think about pizza!!

[Thomo]

Ooh, I bet you're really fancying that Mediterranean jobbie again aren't you?