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Troubleshooting
4-46
Samsung Electronics
4-6-3 Checking Outdoor Controller
1. Making sure the wire connections.
2. Checking AC(220~240V) line
Caution
!
When you remove PBA, you have to check DC link Voltage. After Power off, DC link Voltage is so high!
3. Checking DC voltage on each point
4. Checking PFCM
Check Resistance between R and S
AJ020BXS3CH, AJ***BX*4CH, AJ***BX*5CH (MAIN PCB)
Item
Measuring point
Nomal value
12V
CE101Voltage
10.8V - 13.2V
5V
CE105 Voltage
4.75V - 5.25V
AJ020BXS3CH, AJ***BX*4CH, AJ***BX*5CH (INVERTER PCB)
Item
Measuring point
Nomal value
DC LINK
CE151 Voltage
AC220V → 305~310Vdc
Main control 15V
CE158 Voltage
14.5V - 15.5V
Main control 12V CE157 Voltage
10.8V - 13.2V
Main control 5V CE159 Voltage
4.75V - 5.25V
AJ020BXJ2CH, AJ024BXJ3CH (INVERTER PBA)
Item
Measuring point
Nomal value
DC LINK
CE151 Voltage
AC220V → 305~310Vdc
Main control 15V
CE161 Voltage
14.5V - 15.5V
Main control 12V
CE175 Voltage
10.8V - 13.2V
Main control 5V
CE174 Voltage
4.75V - 5.25V
AJ020BXS3CH, AJ***BX*4CH, AJ***BX*5CH (INVERTER PBA)
AJ020BXJ2CH, AJ024BXJ3CH
Measuring point
Normal value
Resistance
R - S
over the hundreds
㏀
PFCM
PFCM
RR
SS
RR
SS
Содержание AR07TSFABWKN
Страница 101: ...PCB Diagram Samsung Electronics 5 9 Duct S This Document can not be used without Samsung s authorization ...
Страница 113: ...6 2 Samsung Electronics This Document can not be used without Samsung s authorization Home Duct ...
Страница 114: ...Samsung Electronics 6 3 Duct S ...
Страница 115: ...6 4 Samsung Electronics This Document can not be used without Samsung s authorization Console ...
Страница 118: ...Samsung Electronics 6 7 AJ020BXS3CH AJ BX 4CH AJ BX 5CH This Document can not be used without Samsung s authorization ...