4-3. Increase
of
control
panel functions
The number
of
functions can be increasedby changingthe control box. Dependingon the type
of
control box, the
functions given in Table 4-14 are available.
Table
4-14
Control
box
Model
Principal functions
No
box
SC-20
Thread trimming, wiper, reverse stitching
SC-120
SC-120
Thread trimming, wiper, reverse stitching, SET, EBT
SC-220
SC-220
Thread trimming, wiper, reverse stitching, SET, EET,
pattern sewing, overlap sewing
SC-320
SC-320
Thread trimming, wiper, reverse stitching, SET, EET,
pattem sewing(programmed), overlap sewing
The
SC-120, SC-220
and
SC-320
control
boxes
are shown in Fig. 4-20.
SC-120
SC-220
El
SC-320
C.9Z"
• fD
fO-DBS
mm
(U
OOOD
UUKI
•
00DD
§0
0
>C
Fig.
4-20
-
44
-
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