CS4397 dac

[Tripmaster]

Hi Barry

The transformer came pre-soldered that way. I wasn't using a light bulb tester back then so I'm not sure if would have protested. Unfortunately the solder pads were so far gone the dac eventually packed up. I have considered getting another but I've been dabbling with various projects since and its always been put on the back burner.

I see you have been working on some new CD enclosure designs, looking good as ever!

http://theartofsound.net/forum/album.php?albumid=8

[robertor]

hi everybody,
this is my first post here and sorry for my bad english.
i have some problem with the lampucera DAC.
the optical toslink work fine but the coax seems dead.
no music but only rustling.
there is also a strong lowering of the light of the red led.
maybe the lampucera has passed in R.I.P.(Requiescat in pace = Rest in Peace)?
thanks for your help.

[Makgajwer]

R.I.P. = Rust In Pieces

[leo]

Hi Roberta, the RCA fitted for the input spdif on these dacs are extremely poor, I had problems with the ones I was modding, yours may be ok but I'd try replacing it just incase

The ones I modded did not have any led, I presume the led is the locking indicator for the CS8416

[robertor]

thanks for the very fast reply.
i have modified the lampucera following the fikus project.
i have never used the coax imput until 5 or 6 day ago because my cd player was unprovided of the digital output and the lampucera was connected by optical to my MacPro.
now i have the cd player with the coax out and the lampucera don't work.
thanks for suggest and i try to change the input connector.
very interesting the removal of output elko replaced with the film condensator close the output connectors.

p.s. for Leo: my name is roberto.

[lionking]

Hi everyone!

Anybody tried one cs4397 per chanel?

With two chinese cs4397 boards is it possible?

Thanks

[Bodran]

Need some basic help. First let me state that my background is in mechanical engineering rather than electrical but I do like a challenge.
So far I’m using this dac stock with the supplied power supply. I was happy that it worked at all after I hooked it up. First problem I noticed was it is louder in one channel and I have to use the balance control on my preamp (lucky I even have one). So I have been looking here for a solution.
Could the different values of R8, 9, 14 & 17 cause this?
Later on I read about that someone had a bad voltage regulator, I figured that is easy to check so I did and the +5 volts is +5.1v the +12v is +11.81 but the -12v is -16.44v. Looks like a problem on the -12v to me but is it causing the channel imbalance? I measured at the first power supply connector relative to the AG pin.
Regards.

[Rare Bird]

Hi Alan

What are you using the DAC for Computer?

[Bodran]

Hi Alan

What are you using the DAC for Computer?

Andre,
It's basically an experiment to see if you can cobble together these ebay parts into a usable audio component. Also to compare a modern DAC to the one in my Meridian 207 (TDA1541).

[Rare Bird]

Andre,
It's basically an experiment to see if you can cobble together these ebay parts into a usable audio component. Also to compare a modern DAC to the one in my Meridian 207 (TDA1541).

Alan:
If it's compooter use & just a trial why not use the onboard balance control on your media player compensate..