1-96 (No.RA020)*1 If 12M,18M or 33M has still abnormal voltage after the implementation of each procedure above,54M(IC8),12M(A1),18M(IC11), 33M(IC5) or one of these peripheral circuit is broken.Checking the operation of the IC2Check that the voltage of VN of 54M (IC8-2pin)Check that the signal BAT_CNTWhen VIN of 54Mis 13.6V.Check the voltage (operating voltage range) at both ends ofWhen the voltage of54M (normally 5.4V at L12) has an abnormal voltage, check the MSP430G25KGCA (IC2) according to the following procedure.is operating voltage range.Standard Voltage/Operating Voltage rangeF,K Type: 13.6V/13.6±15%E Type: 13.2V/10.8V~15.6Vof IC2-7pin outputs High (3.1V).BAT_CNT is not High.Check that the voltage of DVCC of IC2-1pin is 3.1V.When the voltage ofDVCC of IC2 is 3.1V.Check that the analog voltageof /BINT (IC2-5pin) is normal. (typically 2.6V.Operating voltage range is 1.6V 3.0V).When VIN of 54Mis 0V.F1 (fuse). If F1 is broken, replace the F1 with a new one.If F1 is not broken, 54M (IC8) or its peripheral cricuit is broken.Set the supply voltage within the operatingvoltage range. If set correctly, 54M (IC8) or itsperipheral circuit is broken.54M (IC8) or its peripheral circuit is broken.When VIN of 54M isout of operatingvoltage range.When the voltage ofBAT_CNT is not High.IC2, 31BU, 50BU or one of these peripheral circuitis broken.IC2 is broken.Set the supply voltage within the operatingvoltage range. If set correctly, IC2 or itsperipheral circuit is broken.When the voltage DVCCof IC2 is 3.1V.When a normalvalue is confirmed.When the voltage out-of-range condition is confirmed.Checking the operation of the IC2 (/RST)When the signal /RST (IC2-14pin) has anabnomal output, check that the analog voltage of/RST (IC2-6pin) is normal. (typically 2.7V.Minimum detection voltage is 2.0V.).When the analog voltage of/RST(IC2-6pin) is normal.IC2, 54M (IC8) or its peripheral circuit of is broken.IC2 or its peripheral circuit of is broken.When the analog voltage of/RST (IC2-6pin) is belowWhen a normalvalue is confirmed.*2IC2 is broken.2.0V.Checking the operation of the IC2 (/BINT)When the signal/BINT (IC2-13pin) has anabnormal outputs, check that the signal /RST (IC2-14pin) has correct output.IC2 or its peripheral circuit is broken.When a abnormalvalue is confirmed.Checking the operation of the IC2 (/OVRB_OUT)When the signal/OVRB_OUT has an abnormaloutputs, check that the /OVRB (IC2-2pin) isHigh (3.1V) in the deck powered on.When a normalvalue is confirmed.IC2 is broken.
