TROUBLESHOOTING GUIDE
E-1
(LCD SECTION)
POWER DOES NOT TURN ON
NO
IS F3801 BROKEN ?
YES
CHANGE F3801.
NO
YES
CHECK Q3809 AND
PERIPHERAL CIRCUIT.
NO
CHECK IC3809 AND
PERIPHERAL CIRCUIT.
NO
YES
CHECK IC3806 AND
PERIPHERAL CIRCUIT.
YES
CHANGE AV PCB.
YES
NO
CONNECT CP3804 AND
CP3201.
IS CP3804 AND
CP3201
CONNECTED ?
IS THERE VOLTAGE
AT PIN 2 OF IC3809
MORE THAN 3V ?
IS THERE VOLTAGE
AT PIN 3 PIN OF
IC3806 3.3V ?
IS THERE VOLTAGE
AT PIN 7 OF Q3809
5V ?