DS 350 G Boom Control Troubleshooting- TMS/TTS870 / RT865 BXL
031-300-190-039 Rev. B 4/30/99
40
13. Continuation
Have you found
any wiring faults?
Correct the wiring problem. Refer to
section 11.
Yes
Continuation
Is the voltage
correct (-500mV)?
Main board component defective.
Contact authorized service dealer for
the board replacement procedure.
Yes
No
Check the wiring that connects the
LG 208 with the central unit. Inspect the
cable and connectors.
Connect the voltmeter central unit
terminal A104 X1/10 (signal) and
A104 X1/8 (GND). Use a small
screwdriver to turn the length
potentiometer carefully clockwise.
The voltage should decrease
from -500mV to -4.5V.
No
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