[Elecraft] PX3 LCD cover cleaning

[Scott Manthe]

I've got dust under the plexiglass LCD cover on my PX3. Since the 4 
screws hold the circuit board to the front of the PX3, I'm wondering if 
taking those off to remove the PX3 plexiglass will cause the board to 
fall off the back of the front into the box? I can't remember if the 
side jacks will hold the board in place or not. I know it's a trivial 
process to open it up, but I'd prefer not to just to wipe some dust off 
the back of the plexiglass.

I've built a KX3, a KPA500 and most of a K3 and am worried about the PX3 
main board falling off the front of the enclosure...

73,
Scott N9AA