31. Maintenance and Troubleshooting
31-2
31.2 Replacing the Fuse
The 5A fuse located at the back of the processor unit protects the system from overcurrent and internal fault. If the
power cannot be turned on, check if the fuse has blown. If it has blown, find out the cause before replacing the fuse.
If it blows again after replacement, contact your dealer for advice.
Name Type Code No.
Fuse (5A) FGB0-A 5A AC125V 000-549-064
WARNING
Use the proper fuse.
Use of a wrong fuse can result in damage
to the equipment or cause fire.
Fuse (5A)
31.3 Replacing the Battery
The PCI-951 circuit board in the processor unit contains a lithium battery which preserves data when the power is
turned off. When the voltage of the battery is low the time is wrong, all default settings are restored, etc. When this
occurs, have the battery replaced by a qualified technician, at your earliest convenience.
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