53
Is there
Spindle control signal input?
(IC510 pin 22)
Spindle operating is abnormal
•
Check the connection of IC201 pin 2.
•
Replace the IC201(OTI-9790).
Is there
DMO signal input?
(IC509 pin 5)
Replace the IC508(BU4053).
Is there
Spindle drive voltage output?
(IC510 pin 2, 4, 7)
•
Check the Spindle
Connector(PN502)
•
Replace the Spindle Motor.
NO
NO
YES
Is SPNON signal “H”?
(IC510 pin 23)
NO
YES
YES
YES
NO
•
Replace the IC509(NJM3404).
•
Check the connection of IC301 pin 14.
•
Replace the IC301(MICOM).
Is SBRK signal “L”?
(IC510 pin 18)
NO
YES
•
Check the connection of IC301 pin 30.
•
Replace the IC301(MICOM).
Is there a
SPNFG signal input?
(IC301 pin 62, IC201 pin 7)
NO
YES
•
Check the connection of IC510 pin 19.
•
Replace the IC510(BA6664FM).
Is there Spindle
control signal output?
(IC509 pin 7)
YES
NO
OK