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lf "05" Appears in the Displa'
pe
.
Does the cylinder turn?
YES
Is CYL.FG output at
PG602-5 2:
YES
Is CYL.FG input to
NO"
1C901-38 ?
YES
Is TACH PULSE output
[NO
at PG602-3 7
YES
Is TACH PULSE input to
1C901-39 ?..°
4
YES
Is SW25Hz output from
[NO
1C904-24 ?
YES
Check winding of the
tape, etc.
Is 12V present at
D912,0913 faulty,
PG602-4.7
YES
_ Is the correct voltage.
present at PG602-7 ?
More than 2.5V when
the cylinder turns or OV
when it is stopped.
YES
NO
Check the regulator
circuit and A13.5V line.
Cylinder motor faulty.
Cylinder motor faulty.
Check R615, C614, R634,
C623, and the pattern.
Cylinder motor faulty.
Check R635'and the
pattern.
:
IC901 faulty.
3-13
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