Model 9600/9700 Swing-Reach ® Lift Truck
Section 8. Theory of Operation Pinout Matrix
Function Description
Voltage Source
Voltage User
2.3V
TM
TPA, LPA, GM
+12V supply to the Brake Deadman switch (S2).
10.1 to 13V
TM
S2
RELAY_ENABLE
Control path for K1, K2, K3, and K4 on the Fuse/Relay Card. When S1 closes, all relays are energized simultaneously during SelfTest if the voltage at BATTERY_SENSE_IN is between 44 and 52V.
Relays OFF: B+ ON: 12V
TM
K1, K2, K3, K4
JPT14-8
B–F
This connects B–F on the TM to TP4 (B–) through FU6 on the Fuse/Relay Card. These B– provide the return for everything not using DGND or AGND as reference.
Fuse/Relay Card
TM
170
JPT14-9
B–F
This connects B–F on the TM to TP4 (B–) through FU6 on the Fuse/Relay Card. These B– provide the return for everything not using DGND or AGND as reference.
Fuse/Relay Card
TM
171
JPT14-10
DGND
This connects DGND on the TM to TP4 (B–) through FU6 on the Fuse/Relay Card. This is the reference for all circuits on the truck that reference DGND.
Fuse/Relay Card
TM
172
JPT14-11
BUS0+
Positive component of the digital communications between the TM, TPA, LPA, and GM.
2.3V
TM
TPA, LA, GM
173
JPT14-12
B+KEY
B+ that is switched by the Key switch (S1) and is used to power functions on the TM that are initiated after S1 closes and are not affected by the EPO. This includes the TM power supplies, the operation of the microprocessor, and execution of the firmware.
S1 Closed: B+ Open: <0.5V
S1
TM
174
JPT14-13
B+K2
B+ provided to the TM when the K2 Relay tips are closed. They are de-energized when the EPO is open or key switch is OFF.
B+
K2 Relay
TM
175
JPT14-14
B+K2
B+ provided to the TM when the K2 Relay tips are closed. They are de-energized when the EPO is open or key switch is OFF.
B+
K2 Relay
TM
176
JPT18-1
LHC
Negative path for the Load Handler Contactor (LHC) coil.
Coil Deenergized: B+ Coil Energized: Approx 24V
Fuse/Relay Card
LHC Contactor
Item
Connection
Theory of Operations
166
JPT14-4
BUS0–
Negative component of the digital communications between the TM, TPA, LPA, and GM.
167
JPT14-5
+12VP
168
JPT14-6
169
Publication: 1089040, Issued: 08 Apr 2016
Normal Level
Measure B+ at TP1 to verify connections. Then check for <0.5V wrt TP4.
8-31
