CDRROM to CDplayer?

littlerick · 18th March 2010, 07:23 PM

I am messing with a cdrom and trying to get it to be a cd player. A simple task, but being a pain.

If I plug in the Analog out connectors at the rear to output to rca sockets my headphone jack switches off as would be expected. However no sound is coming out the analog outputs.

I dont want to output to my amp through the jackplug as I want to rehouse the unit in an enclosure to match my amp and would like to have the rca outs.

Anyone else had this problem before and how can I get round it.

tomchr · 18th March 2010, 07:34 PM

I would head to the local library and page through a stack of Elektor Electronics. I'm pretty sure they've done it sometime in the past decade and a half...

I know they built their own CD player, but it used a premade transport.

~Tom

audi0 · 18th March 2010, 08:08 PM

Hi littlerick,

Take a look at this thread, it might be of interest to you Another CDROM Controller Kit

littlerick · 18th March 2010, 08:26 PM

I'm not to worried about the display n stuff, its just a prototype to mess with... Working is all I need at the moment.

I'll worry about pretty when its going

audi0 · 18th March 2010, 08:40 PM

Just a quick question, how do you plan to control it? Play, Stop, Pause, track seek etc.?

littlerick · 18th March 2010, 09:05 PM

It has two buttons on front... One is for the eject and the other is a play/next track button.

It works and plays fine, my only problem is trying to use the analog output on the back. It cuts the headphones but no sound comes through amplifier.

audi0 · 18th March 2010, 09:17 PM

Sorry I must be missing something here, does the CD ROM have an inbuilt DAC?

littlerick · 18th March 2010, 09:22 PM

I have no idea... I plug it into a pc power supply... put a disk in and it will play through the headphone socket at the front. When I plug my cable into the rear analog out, it cuts the headphone socket off, but no sound comes out to the amplifier.

I figured if its got analog output attached it should work.

audi0 · 18th March 2010, 09:31 PM

I’m not 100% sure what the CD-ROM “Analogue Out” is used for

, but I’m pretty damm sure that it isn’t analogue audio. The digital signal will need to be processed through a DAC to get usable audio

nezbleu · 18th March 2010, 09:43 PM

Quote:

Originally Posted by audi0

I’m not 100% sure what the CD-ROM “Analogue Out” is used for

, but I’m pretty damm sure that it isn’t analogue audio. The digital signal will need to be processed through a DAC to get usable audio

See: CD-ROM audio cable Definition from PC Magazine Encyclopedia

These days CDROM drives usually don't have analog outputs, or headphone jacks, but they all used to.

Can't tell why littlerick's analog out isn't working, though.

18th March 2010, 07:23 PM	#1
littlerick diyAudio Member Join Date: Nov 2009 Location: Lincolnshire UK	CDRROM to CDplayer? I am messing with a cdrom and trying to get it to be a cd player. A simple task, but being a pain. If I plug in the Analog out connectors at the rear to output to rca sockets my headphone jack switches off as would be expected. However no sound is coming out the analog outputs. I dont want to output to my amp through the jackplug as I want to rehouse the unit in an enclosure to match my amp and would like to have the rca outs. Anyone else had this problem before and how can I get round it.

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18th March 2010, 07:34 PM	#2
tomchr diyAudio Member Join Date: Feb 2009 Location: Greater Seattle Area	I would head to the local library and page through a stack of Elektor Electronics. I'm pretty sure they've done it sometime in the past decade and a half... I know they built their own CD player, but it used a premade transport. ~Tom

18th March 2010, 08:08 PM	#3
audi0 diyAudio Member Join Date: May 2009 Location: 37.34 degrees South Blog Entries: 5	Hi littlerick, Take a look at this thread, it might be of interest to you Another CDROM Controller Kit

18th March 2010, 08:26 PM	#4
littlerick diyAudio Member Join Date: Nov 2009 Location: Lincolnshire UK	I'm not to worried about the display n stuff, its just a prototype to mess with... Working is all I need at the moment. I'll worry about pretty when its going

18th March 2010, 08:40 PM	#5
audi0 diyAudio Member Join Date: May 2009 Location: 37.34 degrees South Blog Entries: 5	Just a quick question, how do you plan to control it? Play, Stop, Pause, track seek etc.?

18th March 2010, 09:05 PM	#6
littlerick diyAudio Member Join Date: Nov 2009 Location: Lincolnshire UK	It has two buttons on front... One is for the eject and the other is a play/next track button. It works and plays fine, my only problem is trying to use the analog output on the back. It cuts the headphones but no sound comes through amplifier.

18th March 2010, 09:17 PM	#7
audi0 diyAudio Member Join Date: May 2009 Location: 37.34 degrees South Blog Entries: 5	Sorry I must be missing something here, does the CD ROM have an inbuilt DAC?

18th March 2010, 09:22 PM	#8
littlerick diyAudio Member Join Date: Nov 2009 Location: Lincolnshire UK	I have no idea... I plug it into a pc power supply... put a disk in and it will play through the headphone socket at the front. When I plug my cable into the rear analog out, it cuts the headphone socket off, but no sound comes out to the amplifier. I figured if its got analog output attached it should work.

18th March 2010, 09:31 PM	#9
audi0 diyAudio Member Join Date: May 2009 Location: 37.34 degrees South Blog Entries: 5	I’m not 100% sure what the CD-ROM “Analogue Out” is used for , but I’m pretty damm sure that it isn’t analogue audio. The digital signal will need to be processed through a DAC to get usable audio

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