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A
Check the FAO signal.
(IC701 Pin 4 )
V
NO
Check the circuit between the
1.35V
IC401 Pin 3, 4
and the IC701 Pin 4.
T
YES
Check the cold soldering for
the IC501(BA5983FM)
pin 13, 14.
Replace IC501.
B
C
Check the cold soldering for the
YES
Does the square wave
IC301 Pin 1, 38, 40, 63 and C301,
output at the IC401 Pin 24
C303 and IC701 Pin 38, 34.
(FG1)?
NO
Check the cold soldering for
the IC401.
Check the FG1 signal line.
52
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