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    bigdavy_p's Avatar
    bigdavy_p Posts: 39, Reputation: 2
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    #1

    Jul 21, 2008, 07:06 PM
    How to add an LED mod to my dvd burner w/ a window
    I'm not sure if this is the right place for this question, but this site has been very helpful with other questions, so here goes. I recently modded my dvd drive (voided the warranty too, I know) and I was wondering if anyone knows of a way that I can connect an LED inside the drive that lights up whenever there is a cd/dvd in the tray (to illuminate the spinning disc)? I am fairly new to electronics but I understand basic instructions. Where would I need to connect the leads (on the drive's board or somewhere else)? Assuming that I use a 3.5~5v LED what resistors would I need?
    KISS's Avatar
    KISS Posts: 12,510, Reputation: 839
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    #2

    Jul 21, 2008, 07:47 PM
    It's going to be really tough for anybody to answer. What' the interface? SATA, PATA etc. Make and model of drive? Can you find an online manual?

    I suspect it will be extremely difficult. One way might be to detect whether the motor is running.
    KISS's Avatar
    KISS Posts: 12,510, Reputation: 839
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    #3

    Jul 21, 2008, 09:01 PM
    I have another way that might work. Monitor the current in the 12 V supply. When it exceeds a certain value assume the disk is spinning. That may not be too hard.

    A design using this http://focus.ti.com/lit/ds/symlink/ina168.pdf and a comparitor IC should work.

    But In this case, the LED would light while the disc is spinning rather than inserted.
    bigdavy_p's Avatar
    bigdavy_p Posts: 39, Reputation: 2
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    #4

    Jul 22, 2008, 02:14 PM
    Sorry, it's an HP dvd1040 with PATA interface. I haven't looked for a manual, but I will. Honestly, it doesn't matter one way or the other when the LED lights up (with the disc in or spinning). If it was lit up anytime there was a disc in the tray, that would be fine too. Any suggestions?
    KISS's Avatar
    KISS Posts: 12,510, Reputation: 839
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    #5

    Jul 24, 2008, 01:36 PM
    Did you ckeck your PM's (Private Messages)?

    Were you thinking of a standard LED or a LED like the Rebel series from here:

    Luxeon Rebel compact smd LED. Color bin VO; flux bin Q

    Phillps apparently has an evaluation board. These LEDS are really bright and may require a driving boad. I didn't check them out, They do require a heat sink.

    What else is important is how power is suppled to the drive. The PATA power connector or the Molex connector.
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