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Can u hook up a CD-rom drive with the car battery?


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mirusman 
Member - Posts: 2
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Joined: June 15, 2002
Location: Pakistan
Posted: June 15, 2002 at 10:04 AM / IP Logged  

Can you attack a Quad speed CD rom drive with the car battery and then attach the headphone output jack to the car speakers? This CD-drive has  audio play/pause/advance/eject buttons on it.

The CD-drive specifies this:

+5V - 1.0A
+12V - 1.5A

I am not an 'electronics' guy - do the above specifications mean that the drive CAN be attached to the car battery?

CAN the CD-rom drive actually play music satisfactorily from an audio-CD - how do u think it will handle the track skipping?

Is any of this POSSIBLE? :) I would appreciate any help. :)

Thanks in advance folks.

Usman.

Velocity Motors 
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Joined: March 08, 2002
Location: Manitoba, Canada
Posted: June 16, 2002 at 12:37 AM / IP Logged  

I'm not sure about the power conversion but I wouldn't do it if I were you. As far as the CD skipping, it WILL. Ther eare no dampeners like indash or changers have so you will get bad skipping from the player.

Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA
mirusman 
Member - Posts: 2
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Joined: June 15, 2002
Location: Pakistan
Posted: June 16, 2002 at 3:24 AM / IP Logged  

Thanks Jeff!

But I have some questions - WHY wouldnt you do it? I thought it was pretty straightforward as the car battery is a 12 volt one.
About the skipping question - isn't it even worth a try - to attach the CD drive and see if it works smoothly (without skipping) or not? Can u hook up a CD-rom drive with the car battery? -- posted image.
Thank you for ur help!

Usman.

CTMobileMedia 
Copper - Posts: 43
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Posted: June 16, 2002 at 8:49 AM / IP Logged  

   I may be wrong, but I'm assuming you're talking about installing a CD_ROM drive for a desktop PC into your car, correct? If so, it definitely won't work for another reason besides the skipping problem.

    CD_ROM drives are equipped to translate the digital information they read from a disc into an analog audio signal. The computer takes the digital audio and processes it, sends it to the sound card, where it is then changed into sound.

   The way to make this work is to install a computer in the car to operate the CD drive and output sound. Not cost effective at all. I'd reconsider......maybe a AM/FM/CD radio or component CD player isn't so expensive in comparison.

    Dave

    CT Mobile Media

CTMobileMedia 
Copper - Posts: 43
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Posted: June 16, 2002 at 8:51 AM / IP Logged  

 I'm sorry, typo. I meant to write "CD_ROM drives are not  equipped to translate the digital information they read from a disc into an analog audio signal. ".

   Dave

   CT Mobile Media

bberman1 
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Posted: June 16, 2002 at 11:09 AM / IP Logged  
If your talking about a computer cd rom like CTMobileMedia said there is no way it would work. With out the rest of the computer. The computer tells the cd rom what to do. The drive is not like a portable cd player where it can process information and send it to the output.  The drive itself is just capable of reading the data while the computer processes it and then sends it to the soundcard and headphone jack.
NyxBass 
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Posted: June 17, 2002 at 6:41 PM / IP Logged  

I'd like to add - It also would need a +5v supply, which is going to be a trick to get ahold of, and then there's the fact that a car runs at 12v nominally - most cars usually run at about 13-15v when running. A cd-rom drive will want very clean, controlled powere - not like you get in a car. Your best bet is to go all out if you actually want a computer, or just a inexpensive headunit.

BTW CTMobileMedia : Many cd rom drives DO have their own analog convertors in them, and have headphone (front) and line outs(rear)  that go directly to the sound card and then out with almost no processing.

/NyxBass
NyxBass 
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Posted: June 17, 2002 at 6:45 PM / IP Logged  

Wait! I just re-read the post!:

"Can you attack a Quad speed CD rom drive with the car battery "

Hell yes you can attack it with a car battery! In fact, I think I'd even pay to do that to a few choice drives from my past! Hmmm...old car battery vs broken cdrom drive...CRUNCH!

:)

/NyxBass
CTMobileMedia 
Copper - Posts: 43
Copper spacespace
Joined: April 18, 2002
Location: United States
Posted: June 17, 2002 at 7:32 PM / IP Logged  

  OK Nyx, I gotcha. Guess I'm mistaken. I was told that CD-ROM drives differ in that they lack the processing of a typical audio CD drive unit (ie - car radio or home stereo).

   Good point on the power supply. I think we all agree that Mirus would be creating more problems than he's solving by using the CD-ROM drive.

  Unless of course, you use an entire PC system and keep all your audio files on a HD and process everything with software (vs. 12V hardware). Yeah, that'd be cool....Can u hook up a CD-rom drive with the car battery? -- posted image. just kidding. We already discussed this in another thread. Bad idea.

   Dave

   CT Mobile Media

monsoon-bad 
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Joined: July 17, 2002
Location: United States
Posted: July 17, 2002 at 8:14 AM / IP Logged  

Yes it would work, but it would only spin up to speed ie 12v.

You would also need the 5v for the logic of the cd-rom and it should work ASSUMING the cd-rom has front panel buttons for play.

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