[R-390] PTO endpoints

[K2CBY@aol.com]

I agree that adjusting the PTO endpoint trimmer coil is a pain in the neck 
using the manual procedure. There is an easier way to make the adjustment 
with the VFO in place and without removing the receiver front panel. (1) 
Remove the VFO subchassis. (2) Remove the screw cap covering the end point 
adjustment. (3) Reinstall the VFO subchassis. (4) With the entire receiver 
upside down on the bench, rest your longest, thinnest screwdriver against the 
outer edge of the gearbox plate and poke it through the access port from 
which you removed the screw. (Don't even try to thread it through the holes 
cut in the gearbox plates for this purpose.) It should just make it to the 
end of the slug screw. (5) Make the endpoint adjustment. (6) Remove the VFO 
subchassis. (7) Replace the cap covering the end point adjustment access. (8) 
Replace the VFO subassembly in the receiver. In making the adjustment I use a 
3/16" screwdriver 8" long sold by True Value Hardware under the Master 
Mechanic label bearing stock nos 127-399 TS322. (If you have exceptional 
dexterity -- or luck -- and some means of holding the plug onto the end of 
the screwdriver, it may be possible to remove and replace the cover plug 
while leaving the VFO subchassis in situ, thus eliminating steps 1, 3 6 and 8 
above.)

Miles, K2CBY 


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