Samsung MX-F730 - Measures to be Taken When the Protection Circuit Operates; Operation of Power Block Protection Circuit

4.Troubleshooting
4.2.MeasurestobetakenwhentheProtectionCircuitoperates
4.2.1.OperationofPowerBlockProtectionCircuit
■CasesoftheSMPSProtection.
1)IfthereisovercurrentattheAMPIC.(SpeakerWireShort)
2)IftemperatureoftheAMPICisover150℃.
3)Thereisnopowersupplyforamp.
■ProtectionCircuitoperateswhenpowerproblemoccursintheSMPS.
Protection
LocationPinNo.
OpenShort
Remark
+5.3V(2~3#)XX
+PVDD(+34V)(13&15#)XX
+PVDD(10#)XX
MX-F730/F730D
SMPSPCB
CNM802
P-ON(+5V)(7#)XX
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