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5. Troubleshooting
5-1 No Power
Disconnect
the Power Cord
Check
Power LED
LED OFF
Check
IC901 B+
Abnormal
Check
the voltage of
IC804
Abnormal
Check
the resistance of
FD803
Replace FD803
Normal
Check
IC801, D801 FUSE
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Normal
LED ON
Check IC901
Pin
5 6
Abnormal
Normal
Normal
Check
Q909, Q910
Abnormal
Check
Replace
Q909,Q910
IC803
Normal
Abnormal
Replace
Check
IC902
IC803
Abnormal
SCL, SDA Line
Normal
Check IC901
Pin
50
Abnormal
Abnormal
Check IC908 and
Replace IC901
Replace
IC201
Abnormal
Check
IC902
Check Q401 and
Normal
Horizontal Circuit
Check
Troubleshooting
Check/Replace
IC803, 805
Abnormal
Check
the voltage of
IC803, 805
Normal
Check
H-OUT of IC201
Pin
50
Normal
Check the
voltage of
IC803, 805
Normal
Check FBT and
B+(130V)
5-1
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