22 Mar
2011
22 Mar
'11
2:26 p.m.
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 something?
When updating you get a new front which includes the touchscreen parts.. If they are the saem, why didn't the upgrade get
you to move the old PCB
to the
new front paneL?
The new front plate has one function extra, a knob to disable the
touchscreen.
Do you happen to knwo anything abot uthe itnerface on
these touchscreends?
The HP150 (original, 9" CRT) has a custom interface consisitng of a clock
line,
sync line and data line, on a 10 pin (2*5) header
plug. The touchscreen
PCB
contains all standard chips, mostly 4000-series CMOS.
The interface is combined with the front panel knobs hp-hil and rotation
resolver.
The interface is a hp-hil device says the selftest, most of the decoding has
been done by a mcu9818 microcontroller.
Sure, and if I can't find a suitable replacement
at Farnell or somwewhere,
I may
get back to you. But I don't think it's going
to be too difficult to find
something
that will work.
-tony
-Rik