Table of Contents
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AV-20FD22
(TV SECTION)
NO POWER(1)
When it pushed
POWER ON SW as for
LED is it lighted?
YES
Is the voltage at
pin1 of Q505
DC7.3V?
YES
Q510,Q509,Q503
OK?
YES
Is the voltage at
pin34 of IC101
DC4.7V?
YES
Check IC501 and associated
circuit.
20
TROUBLESHOOTING GUIDE
NO
NO
NO
NO
Check of AT +8V line and AT
+5V line.
Check Q505 and associated
circuit.
Check Q510,Q509,Q503 and TV
POWER H Line.
Check IC101 and associated
circuit.
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Table of Contents
Troubleshooting
