Samsung Electronics
10-31
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
YES
YES
YES
YES
YES
YES
Is the power cable from terminal block to
PBA is correct?L :"B", N:"C", EARTH:"D"
Is the power normal?
Is the SMPS is normal?
"G" Main 12V : 11Vdc ~ 13Vdc
Check the fuse open or not? ("E")
Is the SMPS is normal?
"H" Main 5V : 4.5Vdc ~ 5.5Vdc
Unplug the power cord
Restart after power off.
Exchange the PBA
NO
NO
NO
NO
NO
NO
Reconnect the power wire correctly.
Check the power source.
Exchange the SMPS PBA
Exchange the PBA
Exchange the SMPS PBA
Exchange 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 normal?
DB92-02866A F001 CN151:#1 3 CN152#1 2 CN152#2 3
