DS 350 G Boom Control Troubleshooting- TMS/TTS870 / RT865 BXL
031-300-190-039 Rev. B 4/30/99
50
15. Continuation
Is the voltage
correct (-5V)?
Main board component defective.
Contact authorized service dealer
for the board replacement
procedure.
Yes
Continuation
Has
the adjustment
corrected the center mid
length indication?
Yes
No
Check the power supply to the length sensor. Measure
the power supply voltage at central unit terminal A104
X1/11(-5V) and A104 X1/8(GND).
Possible short or wiring fault between
central unit and cable reel. Measure with
the DVM at the length transducer
(LWG 221) terminal 1(GND) and 3(-5V).
No
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