Samsung AR12HSSDPWKNEE, Service Manual

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Sa m sung Electronics 10-31
10-2-25 No power outdoor (Initial Diagnosis) (Not displayed)
1. Checklist :
1) Is input power nor m al?
2) Is AC power linked correctly? (L,N,E)
3) Is m is-wiring between co mm unication wire and Power wire?
4) Is input voltage of SMPS DC-link capacitor("A") nor m al?
5) Is the voltage of SMPS DC nor m al?
2. Troubleshooting procedure
YES
YES
YES
YES
YES
YES
Is the power cable fro m ter m inal block to
PBA is correct?L :"B", N:"C", EARTH:"D"
Is the power nor m al?
Is the SMPS is nor m al?
"G" Main 12V : 11Vdc ~ 13Vdc
Check the fuse open or not? ("E")
Is the SMPS is nor m al?
"H" Main 5V : 4.5Vdc ~ 5.5Vdc
Unplug the power cord
Restart after power off.
E x change the PBA
NO
NO
NO
NO
NO
NO
Reconnect the power wire correctly.
Check the power source.
E x change the SMPS PBA
E x change the PBA
E x change the SMPS PBA
E x change the SMPS PBA
MODEL "A" "B" "C" "D"
DB92-02867A CE101 CN002 CN001 CN003
MODEL "E" "F" "G" "H"
DB92-02867A F001 CN153:#1 3 CN152#1 2 CN152#2 3
DB92-02866A CE101 CN002 CN001 CN003
"G" Main 15V : 14Vdc ~ 15Vdc
Is the SMPS is nor m al?
DB92-02866A F001 CN151:#1 3 CN152#1 2 CN152#2 3