No Power Outdoor (Initial Diagnosis) - Samsung AR09KSWSJWKNCV Service Manual

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
Is the power cable from terminal block to
PBA is correct?L :"B", N:"C", EARTH:"D"
Check the fuse open or not? ("E")
Is the SMPS DC_link voltage normal?
"G" Main 5V : 4.5Vdc 5.5Vdc
"H" Main 12V : 11Vdc 13Vdc
Samsung Electronics
Unplug the power cord
YES
YES
Restart after power off.
Is the power normal?
YES
"F":270Vdc 320Vdc
YES
Is the SMPS is normal?
YES
Is the SMPS is normal?
YES
Exchange the PBA
MODEL
AR18HSFSHWK CE101
AR24HSFSHWK
MODEL
AR18HSFSHWK F001
AR24HSFSHWK
NO
Reconnect the power wire correctly.
NO
Exchange the PBA
NO
Check the power source.
NO
Exchange the PBA
NO
Exchange the PBA
NO
Exchange the PBA
"A" "B" "C"
TB-L TB-N
C101 CN11 #1 CN11 #3
"E" "F" "G"
CE101 CE106
F101 C101 C112
"D"
EARTH
"-"
"H"
CE108
C109
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