Aiwa HV-FX4100k Service Manual page 41

CAPSTAN DD MOTOR
NOT ROTATING
In playback is the
voltage at pin 5 of
CP1003 12V ?
Yes
Is the voltage at pin 8
of CP1003 5V ?
Yes
In playback, check the
voltage at pin 3 of
CP1003 is 2V or at pin
62 of IC1002 is 2.5V ?
Yes
In playback, is the
voltage at pin 4 of
CP1003 2.5V ?
Yes
Replace IC1002.
Does DD MOTOR rotate now?
If not, replace DD MOTOR.
TROUBLESHOOTING GUIDE
No
No
No
No
E-18
Check POWER circuit.
Replace IC1002.
Check pins 77, 78 of IC1002
and peripheral circuit.