CD player question!

JiggaD369 · 22nd June 2005, 06:03 PM

HI, im a complete newbie at this cd player stuff. i know this is gonna sound stupid but someone has to start somewhere. i have a cd player which is quite old and the laser assembly seems to be of high quality. i have searched online and found a nice DAC that i want to build. That DAC calls for a DIGITAL IN and the cd player i have only puts out RCA. plus i wanted to bypass the conversion on the board in the cd player and rather let the DAC do it and connect the laser straight to the DAC. Is that possible? is there somehow i can take the strip comming from the laser with 12 pin end (don't know what its called, but its copperish color) and connect it stright to the line in in the DAC? Please guide me on what to do because this stuff interests me and im very eager to learn. Would appreciate help. thanx.

homer09 · 22nd June 2005, 06:22 PM

maybe searching google would be a good start on this one. you need to know what type of output your transport (laser assembly) puts out. usually is SPDIF, but if its a Philips it probably also has I2S. then, you need a DAC that converts this digital signal to analog. It shouldnt be too hard to find which traces you need to cut in your player to implement your own dac.

start reading up, lots of info out there on basic stuff like this.

JiggaD369 · 22nd June 2005, 06:25 PM

i can take a picture of the laser assembly if that would help.

homer09 · 22nd June 2005, 06:26 PM

make and model number of your cd player would help more.

JiggaD369 · 22nd June 2005, 06:32 PM

Optimus CD-7200. 1Bit D/A Converter. Mfg. in 1994.

22nd June 2005, 06:03 PM	#1
JiggaD369 diyAudio Member Join Date: Apr 2005 Location: New Jersey	CD player question! HI, im a complete newbie at this cd player stuff. i know this is gonna sound stupid but someone has to start somewhere. i have a cd player which is quite old and the laser assembly seems to be of high quality. i have searched online and found a nice DAC that i want to build. That DAC calls for a DIGITAL IN and the cd player i have only puts out RCA. plus i wanted to bypass the conversion on the board in the cd player and rather let the DAC do it and connect the laser straight to the DAC. Is that possible? is there somehow i can take the strip comming from the laser with 12 pin end (don't know what its called, but its copperish color) and connect it stright to the line in in the DAC? Please guide me on what to do because this stuff interests me and im very eager to learn. Would appreciate help. thanx.

22nd June 2005, 06:22 PM	#2
homer09 diyAudio Member Join Date: Jan 2004 Location: Montreal	maybe searching google would be a good start on this one. you need to know what type of output your transport (laser assembly) puts out. usually is SPDIF, but if its a Philips it probably also has I2S. then, you need a DAC that converts this digital signal to analog. It shouldnt be too hard to find which traces you need to cut in your player to implement your own dac. start reading up, lots of info out there on basic stuff like this. __________________ Most people wouldn't know good music if it came up and bit them in the ***. - Frank Zappa

22nd June 2005, 06:26 PM	#4
homer09 diyAudio Member Join Date: Jan 2004 Location: Montreal	make and model number of your cd player would help more. __________________ Most people wouldn't know good music if it came up and bit them in the ***. - Frank Zappa

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22nd June 2005, 06:25 PM	#3
JiggaD369 diyAudio Member Join Date: Apr 2005 Location: New Jersey	i can take a picture of the laser assembly if that would help.

22nd June 2005, 06:32 PM	#5
JiggaD369 diyAudio Member Join Date: Apr 2005 Location: New Jersey	Optimus CD-7200. 1Bit D/A Converter. Mfg. in 1994.

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