Circuit Boards; Joystick Controller - Genie GS-3390 Service Manual

July 2007
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Circuit Boards

How to Remove the Platform
Controls Circuit Board
1 Push in the red Emergency Stop button to the
off position at both the ground and platform
controls.
2 Loosen the platform control box lid retaining
fasteners. Open the control box lid.
3 Visually locate the circuit board mounted to the
inside of the platform control box lid.
4 Secure the control box lid in a level position.
5 Tag and disconnect the wire connectors from
the red Emergency Stop button.
6 Tag and disconnect the wire harness
connectors from the platform controls circuit
board.
Electrocution/burn hazard. Contact
with electrically charged circuits
could result in death or serious
injury. Remove all rings, watches
and other jewelry.
Component damage hazard.
Electrostatic discharge (ESD) can
damage printed circuit board
components. Maintain firm contact
with a metal part of the machine
that is grounded at all times when
handling printed circuit boards OR
use a grounded wrist strap.
Note: Depress the locking tab to disconnect the
wire harness from the circuit board.
7 Remove the platform controls circuit board
retaining fasteners.
8 Remove the platform controls circuit board from
the platform control box lid.
Part No. 72863
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Joystick Controller

Maintaining the joystick at the proper setting is
essential to safe machine operation. The joystick
should operate smoothly over its entire range of
motion.
Machines after serial number GS9003-41522 are
equipped with Hall-effect joysticks, which do not
require calibration.
How to Calibrate the Joystick
(before serial number GS9003-41523)
Note: If the joystick is out of calibration, fault code
30 will be present on the diagnostic display and the
error indicator light will be illuminated at the
platform controls.
1 Turn the key switch to platform control and pull
out the red Emergency Stop button to the on
position at both the ground and platform
controls.
2 Remove the platform control box lid retaining
fasteners. Open the control box lid.
GS-3390 • GS-4390 • GS-5390
Section 4 • Repair Procedures
PLATFORM CONTROLS
Electrocution/burn hazard. Contact
with electrically charged circuits
could result in death or serious
injury. Remove all rings, watches
and other jewelry.
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