
Contents
Contents
1.Precaution........................................................................................................................................1−1
1.1.SafetyPrecautions...................................................................................................................1−1
1.2.ServicingPrecautions...............................................................................................................1−3
1.3.PrecautionsforElectrostaticallySensitiveDevices(ESDs)..............................................................1−4
1.4.InstallationPrecautions.............................................................................................................1−5
2.ProductSpecication.........................................................................................................................2−1
2.1.ProductFeature.......................................................................................................................2−1
2.2.Specications..........................................................................................................................2−2
2.3.SpecicationsAnalysis.............................................................................................................2−3
2.4.Accessories............................................................................................................................2−5
2.4.1.SuppliedAccessories...................................................................................................2−5
3.Disassembly&Reassembly................................................................................................................3−1
3.1.OverallDisassemblyandReassembly..........................................................................................3−1
4.Troubleshooting................................................................................................................................4−1
4.1.CheckpointsbyErrorMode.......................................................................................................4−1
4.1.1.NoPower...................................................................................................................4−2
4.1.2.NoSoundOutput.........................................................................................................4−3
4.2.MeasurestobetakenwhentheProtectionCircuitoperates...............................................................4−7
4.2.1.AMPPre-InspectionrelatingtoPowerProtection..............................................................4−7
4.3.Initialization&Update.............................................................................................................4−8
4.3.1.Initializationmethod....................................................................................................4−8
4.3.2.HowtochecktheFirmwareversion................................................................................4−8
4.3.3.USBUpdateprocedure.................................................................................................4−10
5.PCBDiagram...................................................................................................................................5−1
5.1.WiringDiagram.......................................................................................................................5−1
5.2.MAINPCBTop......................................................................................................................5−2
5.2.1.PinConnection...........................................................................................................5−3
5.3.MAINPCBBottom..................................................................................................................5−4
5.3.1.PinConnection...........................................................................................................5−5
5.4.VFDPCBTop.........................................................................................................................5−6
5.5.VFDPCBBottom....................................................................................................................5−7
5.6.JACKPCBTop.......................................................................................................................5−8
5.6.1.PinConnection...........................................................................................................5−9
5.6.2.TestPointWaveForm..................................................................................................5−10
5.7.JACKPCBBottom..................................................................................................................5−11
5.7.1.PinConnection...........................................................................................................5−12
6.SchematicDiagram...........................................................................................................................6−1
6.1.OverallBlockDiagram.............................................................................................................6−1
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