Samsung MX-J730 - 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(5#)XX
+PVDD(+33V)
(15~16#)
XX
5V(9#)XX
MX-J730
SMPSPCB
CN851
P-ON(+5.3V(1#)XX
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