Eastern Digital Co V700P, Руководство по обслуживанию

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2.ABNORMAL VIDEO LEVEL ON SCREEN
OK
NG
OK
NG
NG
OK
OK
CHECK THE VOLTAGE OF IC801
CHECK THE SIGNAL INPUT OF R.G.B.
ABOUT 0.7Vpp
CHECK THE VIDEO OUTPUT OF IC801
R.G.B. APPROACH STANDARD
CHECK SIGNAL CABLE OR
INTERFACE CARD
CHECK THE RELATIVE CIRCUIT
CHECK IC801 PIN 11 ABOUT 10Vpp
PIN 13, 15, 18 ABOUT 3Vpp
PIN 2, 16 ABOUT 8V
CHECK 8V RELATIVE CIRCUIT
OF Q802 OR CLAMP
CHECK IC801, Q802
NG
3. ABNORMAL DDC (PLUG & PLAY)
OK
NG
CHECK IC301 PIN 10
、
PIN11 VOLTAGE ABOUT 5V
CHECK SIGNAL CABLE
CHECK IC302 GOOD OR FAIL