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WARNING :
When it is necessary to open the control box containing electrical parts, be sure to turn the power off and wait for ve minutes or more before opening the cover in
order to prevent accident leading to electrical shock. If the work is performed while the power is ON, never touch other than necessary parts.
Trouble Cause (1) Cause (2) Check and corrective measures
26. When turning ON the READY
key, error E398 appears.
26-1) The shorter thread remain-
ing thread trimming cylinder
sensor does not turn ON at
the time of origin retrieval or
during sewing operation.
1-A) Power is not supplied to the
cylinder sensor.
Turn OFF the power switch, check an air pressure, the shorter
thread remaining thread trimming cylinder sensor and there is
any loosening or missing of pins on CN53 of MAIN board.
1-B) Cylinder sensor mounting posi-
tion is inadequate.
Make sure that the cylinder sensor LED lights up in the initial
state of power supply ON and LED goes out in the operating
position.
27. When turning ON the READY
key, error E399 appears.
27-1) The suction nozzle cylinder
sensor does not turn ON at
the time of origin retrieval or
during sewing operation.
1-A) Power is not supplied to the
cylinder sensor.
Turn OFF the power switch, check an air pressure, the shorter
thread remaining thread trimming cylinder sensor and there is
any loosening or missing of pins on CN54 of MAIN board.
1-B) Cylinder sensor mounting posi-
tion is inadequate.
Make sure that the cylinder sensor LED lights up in the initial
state of power supply ON and LED goes out in the operating
position.
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