3K5
2-3-4
YC7 1 24V O 24 V DC 24 V DC supply
Connected
to the
switchback
presser
solenoid
and switch-
back feed-
shift
solenoid.
2 ACT O 0/24 V DC SBPSOL (ACT): On/Offd
3 RET O 0/24 V DC SBPSOL (RET): On/Off
4 24V O 24 V DC 24 V DC supply
5 ACT O 0/24 V DC SBFSSOL: On/Off
YC8 1 LED_RD O 2.1/0 V DC OSLEDPWB (red): On/Off
Connected
to the origi-
nal set LED
PWB.
2 GND - - Ground
3 LED_GN O 2.1/0 V DC OSLEDPWB (green): On/Off
4 N.C. - - Not used
YC9 1 5V O 5 V DC 5 V DC supply
Connected
to the origi-
nal switch-
back switch,
original size
length
switch and
original size
width switch.
2 REV SW I 0/5 V DC OSBSW: On/Off
3 GND - - Ground
4 SZ_SW_L I 0/5 V DC OSLSW: On/Off
5 5V O 5 V DC 5 V DC supply
6 GND - - Ground
7 SZ_SW_W I Analog OSWSW: On/Off
8 5V O 5 V DC 5 V DC supply
YC10 1 GND - - Ground
Connected
to original
set switch.
2 SET SW I 0/5 V DC OSSW: On/Off
3 5V O 5 V DC 5 V DC supply
YC11 1 5V O 5 V DC 5 V DC supply
Connected
to DP cool-
ing fan
motor.
2 N.C. - - Not used
3 N.C. - - Not used
4 N.C. - - Not used
5 GND - - Ground
Connector Pin No. Signal I/O Voltage Description
Service Manual Y108671-9