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CHAPTER 4: TROUBLESHOOTING
4.2 Troubleshooting – No Display on the Console or the Display is Dim
NO DISPLAY ON THE CONSOLE OR THE DISPLAY IS DIM
POSSIBLE CAUSES:
1. The console is damaged or the console cable is not connected properly.
2. Poor connection to all the terminals on the control board.
3. The lower control board is damaged.
4. The generator is damaged.
SOLUTION:
1. Check the connection of the console cable at the UCB.
2. Remove the console cable from the J5 socket on the console. Pedal the machine and set your multi-meter to DC voltage and place both
terminals on pins 1 & 4 of the console cable. There should be a reading of more than 5.5VDC (Figure A).
- If voltage is more than 5.5VDC, replace the console.
- If voltage is less than 5.5VDC, or the new console does not resolve the issue, replace the console cable.
3. Open the rear shrouds then check if all the wire harnesses are connected properly to the terminals of the LCB.
4. Unplug the generator cable from the control board, pedal the machine and set your multi-meter to AC voltage and place both terminals on pins 1 &
2, pins 2 & 3, and pins 3 & 1 of the console cable to check if the voltage is variable (Figure B).
- If the voltage reading shown is variable (varies based on RPM), replace the LCB.
- If the voltage reading shown is not variable, replace the generator.
FIGURE A FIGURE B
