General Section  12 
Advanced Digital Trims 
The PCM9X II’s digital trims feature the Direct Access 
display function. While at the Normal display screen, if 
a trim lever is moved, the screen will automatically 
change to display the graphic position for the trim being 
adjusted. The PCM9X II’s Aileron, Elevator, Throttle 
and Rudder trim levers feature an audible center trim 
beep. This is helpful in determining the trim levers 
center position during flight. 
By using the Trim Step Function located in the System 
Mode, the movement of the ADT trims can be fine 
tuned as needed to match your specific application 
Please also note that unlike conventional mechanical 
trim levers, when the PCM9X II transmitter is in the off 
position, no changes can be made to the trim values 
during transportation. 
Control Stick Length  
To adjust the stick length, use the 2mm Allen wrench 
(supplied with your PCM9X II transmitter) to unlock the 
set screw. Turn the wrench counter-clockwise to loosen 
the screw. Then, turn the stick clockwise to shorten or 
counterclockwise to lengthen. After the control stick 
length has been adjusted to suit your flying style, 
tighten the 2mm set screw.  
If you desire longer sticks, JR® offers a stick 
(JRPA047) that is approximately one inch longer than 
standard. This stick, crafted from bar stock aluminum, is 
available at your local JR dealer. 
 
R900S Receiver Connection Diagram 
 
To Charger