REV C
Section 4 • Repair Procedures
June 2005
4 - 2
TMZ-34/19
Part No. 52075
Platform Controls
Activating one or more buttons on the platform
controls first sends a signal to the platform controls
circuit board, then to 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 contain a printed circuit
board, alarm, LEDs and push buttons or a
membrane overlay decal. Models before serial
number T3400-001 are equipped with push buttons
to activate machine functions while models after
T3499-769 rely on a membrane overlay decal to
activate machine functions. All of the components
are replaceable.
For further information or assistance, consult the
Genie Industries Service Department.
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 platform controls from the
machine. Release the clamp on the back of the
platform controls and slide the controls up and
off of the platform. Place the control box on a
work bench.
N.C.
POWER
ALARM
OR
OR
RD
RD
1
2
WH
GN
BK
BK
+
-
e
d
a
b
c
f
a
RD
BL
N.C.
1
2
J1
POWER
ALARM
KEYPAD
J3
U1
OR
WH
GN
BK
c
d
b
Models from serial number T3498-001 to T3499-769
a
platform controls circuit board U3
b
mounting fasteners
c
voltage regulator D7
d
horn H1
e
control cable
f
red Emergency Stop button P2
Models from serial number T3400-001 to date
a
red Emergency Stop button P2
b
voltage regulator D7
c
platform controls circuit board U3
d
mounting fasteners
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