21 Mar
2011
21 Mar
'11
2:11 p.m.
Are those the same LED's used in the HP 16500
series touchscreens ?
Not having seen inside a 16500, I don't know.
I have extraced the faulty LED (you can do this without removing the
housing from the PCB, thankfully. I didn't fancy having to desolder all
21 X-axis LEDs). It's a flat transparent package with a lens 'bubble' on
the output side. I think it's commonly called a 'side viewing' package.
As you may know I updated my 16500A to a 16500C
version with a upgrade kit
from Agilent.
Upgrading included changing the touchscreen PCB, so I've an A-version which
I don't use or maybe one day will part out.
Why do you chnage the touchscreen PCB? Is the new one a higher resolution
or something?
I think change is the LED's are the same, let me
know If you want some of
them.
THanks for the offer, but it appears that both RS components and Farnell
sell IR LEDs in the same package. I will measure up the old one to check,
and if they are the same I'll order a few replacements to try them
I'd rather have a sourve of new speres than have to depend on what I can
raid from old boards.
-tony