LED Blinks Seven Times
Conduct a voltage check on the
AP Board.
No
Sound
20V OK?
Main 9V
OK?
No
5V OK?
No
30V Tuner?
Refer to the AP Board test point locations
Refer to the AP Board test point locations
Slide 13
Slide 13
Check and replace if necessary
IC7218 and biasing components.
Check and replace if necessary
IC7210 and biasing components.
Check and replace if necessary
IC7205 and biasing components.
Check and replace if necessary
D7601 or D7602 and biasing components.
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