Samsung IDH4400A, Руководство по обслуживанию, Страница: 48 / 79

Samsung Electronics 4-21
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EC17 : When the trouble is found on the part related to power system of indoor unit.
Check the connection wire of indoor and outdoor
and then replace indoor unit PCB
NO
YES
YES
YES
YES
YES
Replace fuse
NO
NO
NO
NO
No trouble on F101, F102, F701?
Is the voltage of pin no.1 and 3 of CN1
AC220V~AC240V?
After checking the correct connection between
indoor unit and outdoor unit, and check again
Check point :
- Indoor unit AC220V~AC240V input voltage, DC12V output, DC5V output, output voltage of pin no.2 and 3 of CN15.
- Power transformer, F101, F102, F701
DC12V output?
Check and replace IC02
No trouble on power
transformer AC output?
Check and replace IC101
Check and replace power
transformer
DC5V output?
No trouble on the power system and finish the test
Trouble Shooting
3-00216A(1)-TS 5/19/01 10:06 AM Page 4-21