Samsung AR12HSSDPWKNEE Service Manual page 87

10-2-25 No power outdoor (Initial Diagnosis) (Not displayed)
1. Checklist :
1) Is input power normal?
2) Is AC power linked correctly? (L,N,E)
3) Is mis-wiring between communication wire and Power wire?
4) Is input voltage of SMPS DC-link capacitor("A") normal?
5) Is the voltage of SMPS DC normal?
2. Troubleshooting procedure
Unplug the power cord
Is the power cable from terminal block to
PBA is correct?L :"B", N:"C", EARTH:"D"
Check the fuse open or not? ("E")
Restart after power off.
Is the power normal?
Is the SMPS is normal?
"G" Main 15V : 14Vdc ~ 15Vdc
Is the SMPS is normal?
"G" Main 12V : 11Vdc ~ 13Vdc
Is the SMPS is normal?
"H" Main 5V : 4. 5 Vdc ~ 5. 5 Vdc
Samsung Electronics
YES
YES
YES
YES
YES
YES
Exchange the PBA
MODEL "A"
DB92-02867A CE101
DB92-02866A CE101
MODEL "E"
DB92-02867A F001
DB92-02866A F001
NO
Reconnect the power wire correctly.
NO
Exchange the PBA
NO
Check the power source.
NO
Exchange the SMPS PBA
NO
Exchange the SMPS PBA
NO
Exchange the SMPS PBA
"B" "C" "D"
CN002 CN001 CN003
CN002 CN001 CN003
"F" "G" "H"
CN153:#1 3 CN152#1 2 CN152#2 3
CN151:#1 3 CN152#1 2 CN152#2 3
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