Daewoo DPP-42A1LASB Service Manual page 50

Trouble Shooting
A) Low Voltage Shut Down
Check Start
Turn AC power off
Disconnect CN805 of Power PCB
Turn on the set after AC power on
N Y
Is 'SHUT DOWN' occured?
Turn AC power off Turn AC power off
Connect CN805 back and disconnect
Replace Main B/D
CN 801, CN803, CN804 of Power PCB
Connect all connectors and set Power
Disconnect P6 of Y-SUS B/D
PCB's voltage switch to High
Turn on the set after AC power on
Done
N
Y
Is 'SHUT DOWN' occured?
Turn AC power off
Turn AC power off
Disconnect P2, P3 of Z-SUS
Connect P6 back and disconnect
P1 of Z-SUS B/D
Go to 'Z-SUS, Digital
B/D, Data B/D Shut
Go to 'Y-SUS, Scan B/
Down' part
D Shut Down' part
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