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Motor Runs away
YES
Parts connected to PA2007
YES
PA2007 defective or parts
connected
to
PA2007
terminal
14
defective.
Is FG signal output from
PA2007
terminal
14 over
12V p-p?
NO
YES
Slow down
the motor
at
about
33 1/3 rpm with a
;
hand,
is
the
prescribed
NO
PA2007
defective
or
Cl
defective.
waveform
output
from
PA2007 terminal 4?
YES
Slow down
the motor
at
aoe
33 1/3 rpm Wes a
|No
PA2007
defective
or
C3
hand,
is
the
prescribed
:
defective.
waveform
output
from
PA2007 terminal 1?
YES
PA2007
defective,
or C2
defective, or parts connect
When the motor is stopped
by
hand,
is the
output
Is the
potential
between
PA2007
terminal
5-6
5-6 defective.
from
PA2007
terminal 11
less than 3.5 volts?
YES
PA2008 defective.
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