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Rockbox mail archiveSubject: Re: white backlight modRe: white backlight mod
From: Brian Wolven <brian.wolven_at_verizon.net>
Date: Thu, 03 Jun 2004 16:51:50 -0400 [IDC]Dragon wrote: > At first I thought I'm way too old to spend an hour of micro-surgery work on > such a childish mod, but I'm quite pleased with the result: > http://joerg.hohensohn.bei.t-online.de/archos/backlight.jpg > > On this picture, it looks very blue, but is in fact white with a touch of > blue. Readability is much better (mostly due to way more brightness), movies > and JPEGs look a lot better in b&w than green. > > I used SMT LEDs in 0603 package, sold for Nokia phones, but can't recommend > those. This is a bit smaller than the footprint, my LEDs were extremely > sensitive to soldering heat because they had no backplate. Melts a second > after being touched by the soldering needle. Better use the larger 1206 > type, they should fit. In general, the chip LEDs have to be soldered in > sideways. > Because of the higher forward voltage (~3V instead of ~1.8V), I connected > two in parallel instead of in series like originally. This means you have to > cut the interconnecting trace and route 2 wires per side. The current > limiting resistor is already OK for this configuration, no need to change > it. > > And no, I'm not starting a business and do that for anybody else. ;-) So you're just tormenting those of us who lack the requisite skills? =P Nice job, anyway! _______________________________________________ http://cool.haxx.se/mailman/listinfo/rockbox Received on 2004-06-03 Page template was last modified "Tue Sep 7 00:00:02 2021" The Rockbox Crew -- Privacy Policy |