Am 27.6.2002 19:33 Uhr schrieb "Dan" unter <dan_at_dbdigitalweb.com>:
> Hmm not necessarily, you could just have a little adjustment pod (like a
> pentameter), then adjust it once like you want and leave it at that. A pain
> to adjust but if you were out to just make a non standard backlight more
> like the newton in brightness or to reduce battery consumption then this
> would be fine. A set it and forget it approach, unless say a few years
> later it started to fade and you want to "up it a notch or two" to
> compensate.
To drive this idea further: Maybe Apple has already left a surplus range to
higher brightness in terms of power rating of the components used. We might
be able to simply replace a resistor or add another one in parallel to
improve the brightness after it started to fade.
As I connected 12V to one of my Newtons its BL became suddenly much
brighter. This means to me that the drive is a non-regulated one and simply
drives a pre-settled current into the BL foil capacitance. The power
transistor is certainly under dimensioned :-) Thus the remaining question is
where it is located.
-- With best Regards / Viele Gruesse!Marco Mailand
http://slsbd.psi.ch/timing http://slsbd.psi.ch/~mmailand/ https://www.paypal.com/refer/pal=YYD3VUXUVD2YG
-- Read the List FAQ/Etiquette: http://www.newtontalk.net/faq.html Read the Newton FAQ: http://www.guns-media.com/mirrors/newton/faq/ This is the NewtonTalk mailing list - http://www.newtontalk.net
This archive was generated by hypermail 2.1.2 : Wed Jul 03 2002 - 14:03:10 EDT