Daewoo DPP-42A1LASB Service Manual page 53

Trouble Shooting
D) High Voltage Shut Down
Disconnect three metal plates
between Y-SUS and Scan B/D
Turn the set on after AC power on
Y
Is 'Shut Down' occured?
Turn AC power off
Replace Y-SUS B/D
Connect all cables
and assemble the set
Done
Disconnect P1 of Z-SUS
Turn the set on after AC power on
Y
Is 'Shut Down' occured?
Turn AC power off
N
Turn AC power off
Replace SCAN B/D
Connect all cables
and assemble the set
Done
Check Start
N
Connect P1 of Z-SUS back
Disconnect P5 of Y-SUS and
Turn the set on after AC power on
Y
Is 'Shut Down' occured?
Turn AC power off
Replace Z-SUS B/D
Connect all cables
and assemble the set
Done
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Turn AC power off
P3 of Z-SUS
N
Turn AC power off
Replace Data B/D
Connect all cables
and assemble the set
Done