PT300 Service Manual Brandname: A & A Scales Category: Scales Total Pages: 52 Table of contents ScopeofManual6Specifications7Environmental8TheoryofOperation10Charger11LowVoltageSensor12AnalogSection13MicroprocessorSection15Troubleshooting17ScaleShutsOff18BatteriesWonTCharge19TestsWaveformsand20SystemCheckoutProcedure23Amplifier24SioTotalizing25LoadCells27Procedures28Disassembly30RemoveandReplaceLoadCell31Assembly32UnpackingandInstallation35ConnectorPinouts37Pt300MainCircuitBoard38AppendixA41SchematicsandPartsLayout44AppendixB45TotalizingCable48ChargingCable49InternalCableAssembly51Parts52