59
K CODE
C10 811
DESCRIPTION
VCC above 5.2V
EXPLANATION
The 5 VDC source is used to power electronics circuits. If it is too high, the
electronics will fail to properly operate or could be damaged
ACTION
Check the DC voltage. Check the connectors, plugs and wires. If necessary
replace the Integrated Dispaly
C CODE
C55, C110
K CODE
C10 410 C10 420 C10 430
DESCRIPTION
C10 410: No signal output from transducer 1 (behind main shaft)
C10 420: No signal output from transducer 2 (front of main shaft)
C10 430: No signal output from both transducers
EXPLANATION
There are two preloaded transducers connected to the Integrated Display.
When the shaft spin with the wheel assembly, the imbalance produces vibra-
tion on these transducers. The transducers convert the pressure change to
electrical signals and pass these signals to the microprocessor for imbalance
calculations. If the microprocessor can not get these signals, the balancer
does not work.
ACTION
Check the cable and connectors from transducers to microprocessor control
board. Re-torque the transducers. A transducer is bad and can not output
signal.
C CODE
C103, C104
K CODE
C10 705 C10 706 C10 707
C10 708
DESCRIPTION
C10705: Optoencoder, voltage on shunt resistor is less 2.50 V, too low.
C10706:Optoencoder, voltage on shunt resistor is above 4.30 V, too high.
C10707:Optoencoder, the current through LED less 16 mA, too low.
C10708:Optoencoder, the current through LED above 20 mA, too high.
EXPLANATION
The Optoencoder circuit is mainly used to obtain the encoder signal from the
encoder ring attached on main shaft. The Microprocessor continuously mo-
nitors the encoder. If a problem occurs on the encoder circuit, one of these
diagnostic codes will be displayed
ACTION
Check the cable and connector on the encoder board. Go to C74, C75. Cle-
an the encoder band. If the balancer will spin, balance a wheel and stop, the
encoder is ok.
C CODE
C74, C75
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