John, I changed the main encoder several months ago. Although some of
the details are vague in my memory, it requires removing lots of screws
and the front panel. I also had to remove the LCD display to gain easy
access to the encoder. Some more nimble people may be able to avoid
doing that.
While the replacement step was easy, it appears that the newer encoders
use different cable connectors from the original. I didn't notice that
and used the original connector and cable. As a result, the replacement
didn't work and I was left scratching my head. The new cable must be
installed also.
Also beware that there are insulators on the LCD display pins that can
fall off if you remove it.
73 and good luck.
Joe
K2XX
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