Daewoo 719B Service Manual page 22

4. Abnormal OSD Font
Abnormal OSD Font
Is menu
key selected?
Is OSD Font
exist?
One color is
missing
Is the
output of IC803
(pin 13, 14, 15)
normal?
Refer to Missing Color
* If menu key selected.
No
Yes
Yes
No
Yes
Is +5V
No
Voltage about 5V?
Yes
Troubie in
IC803 or its
ambient circuit
Trouble in IC803
and its ambient
circuit
20
Trouble in
+5V voltage
line.
Refer to trouble in P.S.U