Re: fix for rr501 lockups?

[nobody@xxxxxxxxxxxx (Dave Houston)]

I don't think there's any reliable fix other than replacing the PIC with one
that uses different firmware. Better yet...

     http://www.mbx-usa.com/leviton-aht.htm

bcboy@xxxxxxxxxxxxxxxxxx wrote:

>I have an IBM branded rr501 which regularly locks up. After a lot of
>googling I found that it might be related to dim commands. Sure enough,
>I can very reliably lock it up with an RF remote by holding down the
>dim button.
>
>Has anyone written a summary of what is known about this lockup?
>
>I found some discussion of a similar lockup in the TM751, and possible
>solutions involving changing the gain of an amplifier stage. "I now
>suggest replacing the 1k resistor found between pins 3 and 6 of the
>LM358 op-amp on the TM751 RF daughter board with a 3.9k resistor." Is
>this the definitive fix for the TM751?
>
>Anyone know if a similar fix works for the rr501? I did try reorienting
>the antenna, with no effect.