> I've had two that were like that, one of which was returned and
> 'fixed' by Wizard, but still did not function correctly.
Sounds bogus. Those flywheels usually click into place and cannot beQuote:> I was told the wheels got out of alignment sometimes during transit
'slightly' misaligned, it's either clicked in place or not at all, in which
case it would be nearly unusable. I now have managed to open it: after
dangerously bending the print and managing a cursory peek inside I noticed
there are two screws _beneath_ the top most slider stickers holding the mouse
together... The flywheels were perfectly aligned and flew for seconds when
spun. No fluff, plastic residue or anything else I could detect in there
either. Seems to me it's a design flaw, maybe in the chip, maybe some
electrical tolerance problem. The chip is nearly the same as the Philips
chip in the Logitech, looks like a cheaper copy (HD.. for Hyundai?).
Maybe because there are 4 diodes for each flywheel instead of 2 for the
greater resolution and the holes in the wheel at some position do not quite
overlap a conflicting signal is sent, or interpreted by the chip. I wonder
if I would cover one of the pair it would help anything, diminish
resolution or render it inoperable altogether?
On the microswitches: in the Logitech and an M$ mouse I took apart they
were labeled 'Omron/Japan', the Logitech with red contact bit, the M$ one
grey. The Wizard has green bits and is not marked other than a sigil
looking like '|-C' (HC?). I wonder whether I should mess around desoldering
the microswitches and exchanging them for the Omrons. Are they electrically
fully compatible? Any answers greatly appreciated.
Followups set to c.s.a.hardware.
_ . Thomas Tavoly
. \X/ http://www.cistron.nl/~ttavoly