Samsung DV220AEW - Symptoms, diagnoses and actions

Troubleshooting _ 29
4-4. SYMPTOMS, DIAGNOSES AND ACTIONS
 The power does not work.
TheproblemisinthemainPCB
assembly.Pleasereplaceit.
SettheinputACvoltage.
(CheckAC120/240V)
Neutral
Earth
L2 L1
120V 240V
Directlyconnecttheterminalblock.
(ConnectintheorderofLive2,Neutral,
Live 1)
Neutral
Earth
L2 L1
Connectthehousing.
(Check120VforACpower)
Checktheatwire.
ReplacethesubPCB.
(CheckDCpower,signalandkey)
IstheinputAC
voltagenormal?
Yes
No
IsthesubPCB
normal?
Yes
No
Istheterminalblock
connectionnormal?
Yes
No
Isthehousing
connectionnormal?
Yes
No
Istheatwire
amongthemain
subPCBsingood
condition?
Yes
No