LG LH-CX640 Series Service Manual page 25

3-8
Does
the
CFG
signal
appear
at
the
PMC01
Pin1?
Does
the
PWM
signal
appear
at
the
IC501
Pin108?
Does 2.8V
appear
at
the
PMC01?
Check
the
PMC01
and the
Capstan
Motor
Ass'y.
Does
the
Capstan
PWM
signal
appear
at
the
IC501
Pin108?
Aren't
the
foil
patterns
and
Components
between
IC501
Pin108 and
PMC01
Pin9
short?
Does
the
CFG
signal
come
into
the
IC501
Pin9?
Aren't
the
foil
patterns
and
Components
between
IC501
Pin108 and
PMC01
Pin9
short?
(3)
When
the
Capstan
Motor
doesn't
run,
NO
NO
NO
YES
YES
YES
When
the
Capstan
Motor
doesn't
run,
Does
12VAappear
at
the
PMC01?
YES
Replace the
IC501.
YES
NO
NO
YES
Refer to
\"SMPS(CAPSTAN/12Volt)
Trouble Shooting\".
Aren't
the
foil
patterns
and
component
between
IC501
Pin9
and
PMC01
Pin1
short?
Check
the
Capstan
Motor
Ass'y.
NO