18 Jan
2011
18 Jan
'11
10:13 a.m.
I'll use an old video cam to see witch LED
isn't sending, Sony has an
excellent 'night view"mode witch is very IR sensitive.
I can think of at least 3 problems with that
approach :
1) It only checks the emitters, not the detectors
(or the path through the
4051 muxes)
Yes I know, but it is excluding the most obvious faults (the led's). 3) I am not
sure my video camera has much sensitivity in the IR. It depends
on which vidicon is
fitted, I think.
Yes, stupid of me I should have known, mea culpa ;-) Do you have the HP 150 technical reference ?
Yes, and the HP150-II suplement.
I don't find it that good. The schematics are
incomplete, there's at least
one error (in that what is shown couldn't work
>correctly), and I think
there are some other differences with the mahcines I have. The programming
information is not >that clear either (e.g. the section o nthe commands ot
the 8042 doesn't explain what the touchscreen diagnostic >command does if
there are more than 2 blocked beams)
Yes but it's better then nothing...