Daewoo DPP-42A1LCSB, Service Manual

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