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6. Trouble Shooting Guide
3. AUDIO Abnormal
Check if the
Audio output of
IC401 is ok?
Check if the
Audio output of
IC421 is ok?
Check if the
Audio Input of
IIC401 is ok?
No
Yes
No
Check Audio In Line of J481
Check Regulator Circuit
IC902, 903
Yes
No
Yes
1
Audio Abnormal of Tuner
/Video Input Function
Audio Part
4. AUDIO LINE OUTPUT Abnormal
No
Yes
Yes
OK
Audio Abnormal
of H/P Output
Check if the
Output of IC811
is ok?
Check if the
Output of J701
is ok?
Check Regulator Circuit
IC902, 903
No
Check Audio Circuit