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4. Abnormal OSD Font
Abnormal OSD Font
Is menu key
selected?
Is OSD Font
exist?
One color is
missing
Is the
output of IC204
(PIN 13, 14, 15)
normal?
Refer to Missing Color
* If menu key selected.
No
Yes
Yes
No
Yes
Is
the Fast
No
Blanking signal
(IC204 pin12)
normal?
Yes
Trouble in
IC801 and its
ambient circuit
Trouble in
IC204 and its
ambient circuit
18
Trouble in
Q801,831,861 or its
ambient circuit
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