Epson SQ-1170 Service Manual page 129

printer. You can remove the MAIN board from the lowercase and still check its waveforms by connecting
the board to the printer mechanism with these cables.
The following table shows extension cables and connecting points.
Connector on MAIN
Board
CN 10
CN
CN 18
CN 17
CN 13
CN 15
CN 12
CN 14
in order to make the printer operate with the case-open sensor removed, you can cut out the male
connector from the extension cable #F579 and short-circuit Line 1 and 3, and then insert it to the 3-pin
connector on the control panel.
At the same time, cut out the female connector from the extension cable #E594 and short-circuit Line
1 and 2, and then connect it to the connector connected to the resistor coming form the printer
mechanism.
Table 5-3. Extension Cables
Connecting Point on
Printer Mechanism
Ink cartridge sensor
Ink-and sensor
PG sensor
Paper-end sensor (rear)
Printhead
TE motor
, CR motor
Pump motor
Paper-feed motor
Extension Cable
#F574, and #F575
I ## R5i 1 6,
and
# F 5 9 4
5-2
Part No.
1011025
1011025
1011025
1011024
1011027
1011023
B765 1054101
1011025
1011023
I
I
I
I
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