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NO OSD
CHECK
IC301 B +
(5V) ?
DC 5V
YES
CHECK
IC301 PIN 5, 10
WAVEFORM?
Pin 10
5V
YES
Pin 5
CHECK
IC301 PIN 12
WAVEFORM ?
H+V
5V
YES
CHECK
IC301 PIN 13, 14, 15 ?
H+V
5V
YES
TROUBLE IN
OSD PERIPHERAL
CIRCUIT
7. TROUBLE IN OSD
(ENTER BUTTON MUST BE PRESSED.)
NO
NO
NO
NO
- 18 -
TROUBLE IN
5V LINE
TROUBLE IN
IC601 PIN8 (V-FBP),
T701 40V LINE (H-FBP)
TROUBLE IN
IC302, IC301
TROUBLE IN
IC301, IC302
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