its any idea for this error in the manual said main motor problem our there any part that cause this error such as engine bord or power supply board etc..
KM-1635 C2000 Error
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Re: KM-1635 C2000 Error
After checking things out as suggested, if all components driven by the Main Motor are found to be turning freely, try running the Main Drive motor from within Maintenance Mode U030 (selection A)..
Check connector YC 7 -- pin #5 on the Engine Board while executing U030..
If the voltage on pin #5 goes low while executing U030 and your motor does not turn --- Then replace your motor..
If the voltage on pin #5 does NOT go low while executing U030 --- Then replace your Engine PWB..
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