TROUBLESHOOTING GUIDE
POWER DOES NOT TURN ON (1)
Yes
Yes
(TV SECTION)
When turning on the
Power Switch, does the
LED light ?
Is the voltage at pin 1
of IC502 DC7.7V ?
Does RY501 work ?
Check P.CON 5V line.
Check IC502, D511 and D512.
Check IC502.
Check pins 62 and 63 of IC101 and
peripheral circuit.
Check IC506, Q507 and the
peripheral circuit.
Check Q504, RY501 and the
peripheral circuit.
Does the BASE voltage of
Q501 turn ON or OFF ?
Is the voltage at pin 3 of
IC502 DC5.6V ?
Yes
Yes
Yes
No
No
No
No
No
E-1
