Model 4700 Maintenance Manual

Section 8.Theory of Operation

Single Traction Motor Trucks >S/N 10676 Pinout Matrix

272J117-1 DRAIN Voltage from the HCB (JCM-19) to turn on the Drain Solenoid (EVP). If not present, check the HCB, wiring, and connections.

Approx. 2.5V static; Approx. 2 to 13V wrt J117-2 when lifting or performing an aux function (approx. 18ohms across coil)

273J117-2 +V

Voltage from the HCB (JCM-20) to turn on the Drain Solenoid (EVP). If not present, check the HCB, fuse F21, wiring, and connections.

Approx. B+ when lifting or performing an aux function

274J119-1 +V

Voltage is supplied to the optional Lift Limit Bypass solenoid when SW16 is normally closed. When SW16 opens, the Lift-Limit Bypass button PB9 must be depressed to allow lift. If not present, check wiring, fuse, switches, and connections.

+24V

275J119-2 B–

B– supply from Battery. This B– is used by the optional Lift-Limit Bypass Valve (EV12). If not present, follow back towards B– until loss can be determined.

276J137-1 CAN L Communication line between Operator Display and VM (J34-21).

277J137-2 CAN HCommunication line between Operator Display and VM (J34-33).

278J137-3 GND B– supply from Battery. This B– is used by the Operator Display. If not present, follow back towards B–until loss can be determined.

279J137-4 NOT USED

280J137-5 +V +24V supply to Operator Display from the VM (J34-12). If not present, check fuse F14, wiring, and connections.

281J137-6 GND B– supply from Battery to the Operator Display. This connection supplies B– to the CAN-Bus Interface by use of a jumper. If not present, follow back towards B–until loss can be determined.

Publication 1160093, Issued: 20 May 2013

Section 8.Theory of Operation

Pinout

Model 4700 Maintenance Manual

Matrix Single Traction Motor Trucks >S/N 10676

282J138-1 GND B– supply from Battery. This B– is used by the optional Fingertip Armrest Board. If not present, follow back towards B– until loss can be determined.

Battery voltage wrt BT1+ BT1Fingertip Armrest Board

N/A

Armrest Board

284J138-3 GND B– supply from Battery. This B– is used by the optional Fingertip Armrest Board. If not present, follow back towards B– until loss can be determined.

Battery voltage wrt BT1+ BT1Fingertip Armrest Board

N/A PPAFingertip

Armrest Board

+24V VMArmrest

Board

B+ F3HCB 289J140-2 B+ B+

290J140-3

B– supply from Battery. This B– is used by the optional HCB. If not present, follow back towards B–until loss can be determined.

291J140-4 CAN L Communication line between HCB and VM (J40-8).

N/A VMHCB

N/A VMHCB

295J141-1

GND

296J141-2 NOT USED

Optional voltage from Armrest Board to PB13. input to Armrest Board from PB13. closed; 5V open

Armrest Board Armrest

Publication 1160093, Issued: 20 May 2013