REV CSection 4 • Repair Procedures June 20054 - 2 TMZ-34/19 Part No. 52075Platform ControlsActivating one or more buttons on the platformcontrols first sends a signal to the platform controlscircuit board, then to the ground controls printedcircuit boards which ultimately activates a machinefunction. Keeping the platform controls clean anddefect free is essential to safe machine operation.The platform controls contain a printed circuitboard, alarm, LEDs and push buttons or amembrane overlay decal. Models before serialnumber T3400-001 are equipped with push buttonsto activate machine functions while models afterT3499-769 rely on a membrane overlay decal toactivate machine functions. All of the componentsare replaceable.For further information or assistance, consult theGenie Industries Service Department.1-1Circuit BoardHow toRemove the Circuit Board1 Tag and disconnect the platform controls wireharness from the harness connector at theplatform pivot.2 Remove the platform controls from themachine. Release the clamp on the back of theplatform controls and slide the controls up andoff of the platform. Place the control box on awork bench.N.C. POWERALARMORORRDRD1 2WHGNBKBK+ -e dabcf aRDBLN.C.1 2J1POWERALARMKEYPADJ3U1ORWHGNBKcdbModels from serial number T3498-001 to T3499-769a platform controls circuit board U3b mounting fastenersc voltage regulator D7d horn H1e control cablef red Emergency Stop button P2Models from serial number T3400-001 to datea red Emergency Stop button P2b voltage regulator D7c platform controls circuit board U3d mounting fasteners800-610-4101ActionRental.com