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Spindle operating is abnormal
Is there
spindle control signal input?
(LIC502 pin 26)
YES
Is there
spindle drive voltage output?
(LIC502 pin 11,13,16)
YES
Replace the Spindle Motor
NO
spindle control DSP
output(LIC301 pin 123)?
•Replace the LIC301
NO
SFG signal input?
(LIC301 pin 53)
Is there
NO
YES
Replace the LIC301.
Is there
NO
YES
OK
•Replace the LIC102.
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