On 2/22/2016 9:31 PM, Peter Gottlieb hpnpilot@... [hp_agilent_equipment] wrote:
Generally you remove the front panel circuit board and front panel, then
separate the PCB and that will get you enough access to work on the buttons. Do
this over a benchtop as some of the little springs may have popped out and it's
best to not lose them. Straighten them gently and carefully use tweezers to get
then in and under a little feature on the button shaft. You'll see what I mean
when you're in there. If you are missing any look in the archives, spring
stainless shim stock of a certain thickness works and can be cut with a
scissors. If ANY buttons are stuck in things will not work right. If the
encoder is dead it's likely the internal light bulb burned out. Look in the
archives for the number, it's not too hard to replace.
Hello--
Here's a column which I wrote a few years ago that describes the switches and replacement
shim stock-- it's 0.002 inches thick. Depending on what automobile-repair resources are available
to you, the only source of shim stock may be a feeler gauge:
73--
Brad AA1IP
