Sony PDW-F1600 Operation Manual page 160

This can be used as a guide in determining when to replace
the spindle motor.
H15: LOADING COUNTER mode (resettable)
Display the total number of times disc has been loaded in
the unit. The count is resettable.
H17: SEEK RUNNING HOURS 1 mode (resettable)
Same as H13.
Of the two optical heads, this shows the cumulative seek
operation time for the other optical head in units of hours.
The count is resettable.
To display the digital hours meter
Press the MENU button to display the setup menu, then
turn the PUSH SET(S.SEL) knob to display the required
item in the time data display area and on the monitor
connected to the unit.
To exit from the digital hours meter
Press the RETURN function button (F1) to return to the
setup menu.
Press the EXIT function button (F5) to return to the screen
that was displayed before you entered the setup menu.
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Periodic Maintenance