LG StudioWorks 900B - Page 20

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7. TROUBLE IN OSD
CHECK
IC302 PIN 24
(H-PULSE COMES IN ?)
CHECK
IC302 PIN 1
(V-PULSE COMES IN?)
CHECK
IC302 PIN 11, 12
(IS THERE ANY SIGNAL
WHEN OPERATING FRONT
CONTROL ?)
NO OSD
TROUBLE IN
IC302
TROUBLE IN
P302
TROUBLE IN
P302
TROUBLE IN
IC401
YES
YES
YES
NO
NO
NO
CHECK
IC302 PIN 18
(5V) ?
TROUBLE IN
P302
NO
YES