hi guys...
I've researched a bit... There is a one thing I'd like to know...
As far as I've seen... In all CD-drives is a voltage regulator... 78XX in fact... One to three are used for electronics, and one only one!) is used for mechanics... Now, I'd like to know for which motor is it used? For CD-spindle motor, or for laser-guidance servomotor?
I saw 7808, and 7810 voltage regulator... Which means that 12V from input aren't used at all in it's full capacity!
Now, my idea... Let's change the 78XX chip, and replace it with let's say 7812 or 7815 to get 12V or even 15V on motors? Won't burn, don't worry... Further... I think I shiould provide the mechanics with much greater voltage then usual, so let's say, 17V could do?
From the power connector, I can get -5V and +12V, which gives me total voltage of 17V... So, now I'm happy... I can provide voltage regulator with fine 17V and drive it on 15 or 12V... Could work...
Now, some problems... Will laser-positioning system work at all? Will the CD media spin to fast for laser to read it's contents (I think this is a stupid question, but who knows)...
Overheating could be solved... Check my text on
www.overclockers.com concerning overheating problems with CDRWs... It'll be in a week or so put on the page...
And you could look at my old text on
www.overclockers.com: http://www.overclockers.com/tips808 So, don't think that I'm some kind of lunatic... :) I know what I'm doing...
Damir Lukic,
calypso@fly.srk.fer.hr a member of hr.comp.hardver FAQ-team