JUKI LZ-2290C/X73257, Instruction Manual And Parts List, Page: 18 / 44

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10. DPC function
The SD-29 amplifier has two output channels. (It is possible to set two channels.) The right side of channel
number
❶ lights up when it is selected.
① When there is no thread at this side of the bobbin case, channel number ❶ goes out and D ❷ lights up.
②
When there is the thread at this side of the bobbin case (when the thread receives the sensor light and
the quantity of light received is lower than the threshold), channel number ❶ lights up and D ❷ goes out.
③ If you want to change over the channel, press "MODE" ❸ . When the on/off state of the L/D is reversed,
press "L/D" ❹ to change over the channel.
Be aware that the sensor may fail to carry out detection normally if the on/off state of the L and
D is reversed.
Refer to the next page for how to set the DPC function.
The DPC function is a correction function to help the user to use the SD-29 satisfactorily.
(The DPC function works to allow the SD-29 to carry out detection with stability even when the quantity of
light received by the sensor varies due to cloth chips or oil gathering on the sensor head, bobbin case sur-
face and/or reflective plate.)
❷ ❷ ❶ ❶
❸ ❸ ❹ ❹
DPC In the case of "ON" : Lights up
In the case of "OFF" : OFF
WARNING
Be sur to turn OFF the DPC function before you carry out "8. Adjusting the sensor position" p.11 or "9.
Turning the sensor" p.14 .
● Standard condition at the start of sewing (no thread is present on this side of the bobbin case)