(3) THREADING
Checks the threading motor, the thread-end sensor and the
unthread-end sensor.
1. Select the THREADING MOTOR from the submenu and press
the [SET] ([YES]) key. Keep pressing the [(] key to rotate
the threading motor in the FWD direction.
Confirm that the threading ring completes threading and
THREAD END appears on the monitor display.
2. Keep pressing the [)] key to rotate the threading motor in the
REV direction.
Confirm that the threading ring completes unthreading and
UNTHREAD END appears on the monitor display.
In case of trouble :
If the threading motor does not rotate, or if dots [.......] keep
appearing on the video monitor, or if OUNTHREAD END� does
not appear even though unthreading is complete, check whether
the threading motor (on the PTC-88 board), the driver circuit (SV-
184 board) and the sensors on the PTC-84 board are defective.
Check also the threading FG amplifier circuit (SV-184 board) and
the sensor (on the PTC-88 board).
DSR-80/80P/60/60P
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