Daewoo 526X Service Manual page 16

4. Abnormal OSD Font
Abnormal OSD Font
Is menu
key selected?
Is OSD Font
exist?
Yes
One color is
missing
Yes
Is the
output of IC803
(pin 12,13, 14)
normal?
Yes
Refer to Missing Color
* If menu key selected.
Is Heater
No
Voltage about 6V?
Yes
Troubie in
IC803 or its
ambient circuit
Trouble in IC803
No
and its ambient
circuit
18
Trouble in
No
Heater voltage
line.
Refer to trouble in P.S.U