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