S-900, LCD and Disk Drive

[dave solursh]

Hi I hope this is an appropriate question to the synth post.  I am trying
to bring an AKAI s-900 sampler back to usefullness and am having two
problems.  #1) the LCD display used to light up (now it doesn't), it will
suck to have to work with the lights on, I love working in the dark!  Does
anyone know where I should start when searching for the fix to this
problem?  Anyone know anything about which pin might be responcible for the
LCD's glowing attribute?
        #2) the infamous disk drive of the s-900, I have read all over the
web that only certain drives work with the s-900 and other posts say not
ever to bother and just to drop 200USD on a new one from AKAI (yah right,
this is DIY!  I am doing this on the cheap!).  Does anyone have any
practicle experience with fixing and replacing the s-900's drive?  What
jumpers should I set and what type of drives work the best?
        Thanks a bunch!  dAve