Panasonic KX-W1500 Service Manual page 92

d. Seek Problem —
Is 5V
on Pins 2, 9, 16
of IC 4?
~ NO
YES Trouble on IC 2.
Replace Complete PCB.
Is
Signal on
IC 4 Pins 3, 6?
NO
YES
Trouble on IC 2.
Replace Complete PCB.
Is
Signal on
IC 4 Pins 10, 11,
14, 15?
NO
sae Trouble on IC 4.
Replace Complete PCB.
Trouble in Stepping Motor.
Replace Mechanism Assembly.
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