Daewoo DP-42SM Service Manual page 38

YES
AC PWR "OFF"
Disconnect AUDIO PWR
Connector of JACK PCB
AC PWR "ON" => PWR "ON" with
Remote Controller.
"SHUT DOWN"
occur?
YES
VIDEO or JACK
PCB is N.G.
Fig. 6 Trouble Diagnosis Flow when LOW VOLTAGE SHUT DOWN occurs
AC PWR "OFF"
HIGH VOLTAGE SWITCH of
POWER PCB "OFF" (refer to Fig.4)
Disconnect PWR Connectors of
Z-SUS and Y-SUS
AC PWR "ON" => PWR "ON" with
Remote Controller
"SHUT DOWN"
occur?
NO
JACK PCB is N.G.
-37-
NO
AC PWR "OFF"
Reconnect only PWR Connector
of Z-SUS
AC PWR "ON" => PWR "ON" with
Remote Controller
"SHUT DOWN"
occur?
YES
Z-SUS or Controller
PCB is N.G.
Trouble shooting
NO
Y-SUS or SCAN
PCB is N.G.