On 02/18/2016 03:30 PM, sreeb sreeb@... [hp_agilent_equipment] wrote:
I just tried to update from an ancient logitech ps/2 mouse with ball to
a new ps/2 laser mouse. My 16700B didn't recognize it.
Same result with a new compact keyboard. My old one, that dates from
around 1990, works fine.
Both are native ps/2 devices and work on windows machines with ps/2
interfaces.
Has anyone else encountered this problem?
From my archives, a post by Martin Hodge on the eevblog forum in 2014:
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It appears that all that is wrong with these units is that they are
missing pull-up resistors on the PS/2 ports. There are even unpopulated
pads for them directly behind the connectors. (see image) All that I had
to do was add 1k resistors in the four locations and the unit recognized
an old el-cheapo PS/2 mouse and keyboard. (As expected, a USB mouse or
KB thru a PS/2 adapter did not work.)
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-Dave
--
Dave McGuire, AK4HZ
New Kensington, PA
Dave McGuire