Zenith XBR411 Manual page 79

Spindle operating is abnormal
Is there
spindle control signal input?
(IC102 pin 26)
YES
Is there
spindle drive voltage output?
(IC102 pin 11,13,16)
YES
Replace the Spindle Motor
NO
spindle control DSP
output(IC201 pin 130)?
•Check the R145,R143.
•Replace the IC104
NO
SFG signal input?
(IC301 pin 28)
•Check the connection of IC102 pin 43.
•Check the connector CN103.
•Replace the IC102.
3-102
Is there
NO
YES
Replace the IC201.
Is there
NO
YES
OK