Service manual

19
4. Abnormal OSD Font
Is menu
key selected?
Is OSD Font
exist?
* If menu key selected.
Is the
Fast Blanking signal
normal?
Abnormal OSD Font
Is the
output of IC804
(pin 13, 14, 15)
normal?
Trouble in
IC804 or its
ambient circuit.
Trouble in
IC802 or its
ambient circuit
Trouble in IC804
and its ambient
circuit
One color is
missing
Refer to Missing Color
No
No
Yes
Yes
Yes
Yes
No