Platform Controls; Circuit Board - Genie TMZ-50/30 Service Manual

Section 4 • Repair Procedures
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Platform Controls

Activating one or more buttons on the platform
controls first sends a signal to the platform controls
circuit board, then the ground controls printed
circuit boards which ultimately activates a machine
function. Keeping the platform controls clean and
defect free is essential to safe machine operation.
The platform controls consists of a printed circuit
board, Emergency Stop button, alarm and an
overlay membrane decal. All of the components
are replaceable.
For further information or assistance, consult the
Genie Industries Service Department.
a
b
c
d
4 - 2
J1
POWER
RD
BL
U1
ALARM
J3
KEYPAD
red Emergency Stop button P2
voltage regulator D7
platform controls circuit board U3
mounting fasteners
1-1

Circuit Board

How to
Remove the Circuit Board
1 Tag and disconnect the platform controls wire
harness from the harness connector at the
platform pivot.
2 Remove the controls from the machine. Open
the clamp on the back of the controls and slide
the controls up and off of the platform. Place
the control box on a work bench.
3 Remove the fasteners securing the cover to the
a
control box. Open the box.
4 Tag and disconnect the wire connectors from
the circuit board.
b
Component damage hazard.
Electrostatic discharge (ESD) can
c
damage printed circuit board
d
components. Use a grounded
wrist strap at all times when
handling printed circuit boards.
5 Remove the circuit board mounting fasteners
and remove the circuit board from the box.
TMZ-50/30
June 2005
REV B
Part No. 65162