V
FUTABA 9Z
THE UNOFFICIAL WORKSHOP MANUAL
WARNING:
THE INFORMATION IN THIS MANUAL IS FOR INFORMATION PURPOSES ONLY AND MAY BE INCORRECT, CAUSE DAMAGE
TO YOUR RADIO OR INJURY TO YOURSELF AND OTHERS. IF YOU USE THIS MANUAL YOU DO SO SOLEY AT YOUR OWN RISK.
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Page 24 of 84
look difficult, but it really isn’t as long as you remember to keep all those little springs
and screws safe once you’ve removed them. POTS are fairly standard items in the
electronic industry, but their calibration value is critical so make sure you get the right
ones. There are two sorts used on the 9Z series of transmitters – one is blue and one is
silver. Futaba can provide exact replacements or you can find the little numbers written
on the POTS and plug this into Google to find an aftermarket replacement. The required
part numbers can be found in APPENDIX C.
To remove and replace the POTS and joysticks in your 9Z simply follow the procedure
below:
1.
Remove the 4 Allen key screws around the joystick/gimbals (see Figure 34 on Page
40).
2.
Twist out the joystick gimbal and disconnect the associated cable (see Figure 14).
3.
Remove the retainers for horizontal axis and remove both the pot and the joystick
(see Figure 15).
4.
If you are replacing the joysticks assemble the parts as shown in Figure 18. It may
well be a good idea to add a strengthening collet (see Section 4.3) to the assembly
to prevent future joystick failure as this is a fairly common issue.
5.
Unscrew the ball bearing at the end of the pot and remove the horizontal POT from
the assembly (see Figure 16).
6.
Slice the heat shrink tubing on the horizontal POTS connectors and desolder the
wires.
7.
Solder a new POT onto the wires. It is very important to add new heat shrink tubing
to protect the contacts or you risk a short circuit when in use.
8.
Reassemble the POT in the horizontal axis gimbal using red Locktite or similar as
before and re-fit the joystick.
9.
Unscrew the vertical axis POT retainers and pop out the POT (see Figure 19).
10.
Desolder the connector PCB, solder it onto a new POT (see Figure 20).
11.
Finally, reassemble the vertical axis gimbal. Again, make sure you use red Locktite
or similar when installing the new assembly back into the gimbal.
12.
Reassemble the rest of the gimbal unit and replace the whole fully serviced unit
back in your 9Z. Reassembly is a reversal of disassembly.
