JVC AV-20FD22 Service Manual page 10

NO POWER(2)
F501 OK?
YES
Is the voltage at
pin8 of T501
DC170V?
YES
Is the voltage at pin1 of
IC501 DC16V?
YES
Is the voltage at pin4
of IC501 DC18V and
pin5 2V?
YES
Is the voltage at pin1 of
Q505 DC7.3V?
YES
Check IC501 and associated
circuit and change of Q505.
TROUBLESHOOTING GUIDE
NO
NO
NO
NO
NO
AV-20FD22
Change of F501.
Check D501 and associated
circuit.
Change of T501.
Change of IC501.
Check I503 and associated
circuit.
21