73
9-2-14 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
NO
NO
NO
NO
.
YES
YES
YES
YES
Unplug the power cord
Check the fuse open or not? (F001)
Restart after power off.
Is the power normal?
Is AC power is normal for SMPS?
CN150 : 220Vac~240Vac
Check SMPS wire connection
Exchange the Main PBA
Check the power source.
Exchange the Main PBA
Reconnect the power wire correctly.
Is the power cable from
terminal block to PBA is correct?
L :CN002, N:CN001, EARTH:CN003
Summary of Contents for AR07TXFYAWKNEU
Page 53: ...53 7 3 DISPLAY PCB DB92 04833B ...
Page 78: ...78 10 1 Indoorunit 10 Block Diagram ...
Page 79: ...79 10 2 Outdoorunit ...
