first try cd-rom + 1543 dac

[senderj]

Tried to use cd-rom drive plus a NOS 1543 dac to bulid cd player. The controller + cd-rom drive works find when use analog output. But when connect the SP/DIF to this 1543 dac

http://www.pbase.com/billyflorentino/image/19056296

the controller freeze with message "Looking for IDE". Disconnect the dac, the cd-rom driver plays normally. Any idea what's wrong?

 

[Leolabs]

Which kind of controller are you using???

 

[senderj]

This one:

http://www.cdream5.com/htm/PDF/CDC3_SCH_V5.rar

 

[Leolabs]

Then which version of firmware are you using???

 

[senderj]

Version 3.2

 

[Leolabs]

Never know there is such a problem.Have you try with other DACs???

 

[MCLL]

What brand name CD-Rom you connect?

or

using other CD-Rom?

 

[senderj]

I don't have other dac to try.

I did further test on the dac with a dvd player's coax out. It didn't work also. From the link, it works with the author. And I also saw some similar schematic (same 75R at input, using 8412 or 8414 with 1543, different output RC network) DAC on other web sites and the authors also have success. I've check my connection over and over again and didn't spot anything wrong. What is the most likely area where I made msitake? What would you check first if you are in such situation? Please help.

 

[PetrL]

"same 75R at input"

The CD-rom has TTL output level, so no 75R in parallel! Just leave it out.

By the way, soundwise, using CD-rom's digital out is waste of time (I wasted it already).

 

[MCLL]

I have build a DAC also using CS8414 & AD1852 connect to my CD-Rom Player. No any error found. And then, Try to connect dvd-player and no any error found.

 

[senderj]

Can I have the schematic of your dac?

 

[JojoD818]

Forgive my interuption, but I'm just a bit confused regarding the cd-rom controller. Is there any links where I can read about building one too?

Does this controller work for almost any IDE CD-ROM drive?


Thanks

 

[MCLL]

Can I have the schematic of your dac?

compare with my DAC circuits, just one pin different in CS8412, pin16 should be connect to ground.

 

[MCLL]

Can I have the schematic of your dac?

Where are you buy TDA1543 from Hong Kong?

and

How much?

 

[senderj]

jojo,

the controller is from here http://www.cdream5.com/htm/CDCV30_01.htm

MCLL,

Thanks for the schematic. What is the 10-pin IC before the output?

My 1543 was from here www.futurlec.com, not from HK.

 

[MCLL]

jojo,

the controller is from here http://www.cdream5.com/htm/CDCV30_01.htm

MCLL,

Thanks for the schematic. What is the 10-pin IC before the output?

My 1543 was from here www.futurlec.com, not from HK.

Not 10-pin IC...

Should be output Single Op Amp like AD797, OPA604 and etc.

How much include delivery charge?

 

[JojoD818]

hi senderj,

does it connect to any standard cd-rom drive? how much is it?

my web browser can only display "?????" from te link so I can't figure out how much is it.

Thanks

 

[senderj]

jojo,

It is a Chinese web site. That's why you cannot display the characters.

I think it can controller not too old cd-rom drive. But needs a 80 media ide cable.