Daewoo 531X Service Manual page 20

4. Abnormal OSD Font
Abnormal OSD Font
key selected?
Is OSD Font
One color is
missing
output of IC204
(pin 13, 14, 15)
Refer to Missing Color
* If menu key selected.
Is menu
No
exist?
Yes
Yes
Is the
No
normal?
Yes
Is Heater
Voltage about 6V?
Yes
Troubie in
IC803 or its
ambient circuit
Trouble in IC204
and its ambient
circuit
18
Trouble in
No
Heater voltage
line.
Refer to trouble in P.S.U