No Power Outdoor (Initial Diagnosis) (Not Displayed) - Samsung AR12TVEAAWKNAP Service Manual

10-2-14 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 mis-wiring between Main PBA and SMPS PBA wire?
5) Is input voltage of SMPS AC in Main PBA (CN150) normal?
6) Is the voltage of SMPS DC in Main PBA (CN151,CN152) normal?
2. Troubleshooting procedure
Unplug the power cord
Is the power cable from
terminal block to PBA is correct?
L :CN002, N:CN001, EARTH:CN003
YES
Check the fuse open or not? (F001)
YES
Restart after power off.
Is the power normal?
YES
Is AC power is normal for SMPS?
CN150 : 220Vac~240Vac
YES
Check SMPS wire connection
NO
Reconnect the power wire correctly.
NO
Exchange the Main PBA
NO
Check the power source.
NO
Exchange the Main PBA
73
.