2.ABNORMAL VIDEO LEVEL ON SCREEN
NG
OK
NG
OK
NG
OK
NG
OK
3. ABNORMAL DDC (PLUG & PLAY)
NG
OK
CHECK SIGNAL CABLE
CHECK THE VOLTAGE OF IC801
PIN 2,16 ABOUT 8V
CHECK 8V RELATIVE CIRCUIT
CHECK THE SIGNAL INPUT OF
R.G.B. ABOUT 0.7Vpp
CHECK SIGNAL CABLE OR
INTERFACE CARD.
CHECK IC801 PIN 11 ABOUT 10Vpp
CHECK THE RELATIVE CIRCUIT
OF Q813,Q814 OR CLAMP.
CHECK THE VIDEO OUTPUT OF
IC801 PIN 13,15,18 ABOUT 3Vpp
CHECK IC801,Q813,Q814
R.G.B. APPROACH STANDARD
CHECK IC102 GOOD OR FAIL
CHECK IC101 PIN 5 VOLTAGE
ABOUT 5V
Page 14 of 59
4V SERIES MANUAL
05.06.2002
file://D:\PC%20AOC\SERVICE%20MANUAL\FSC\154V\154V-C551.htm