Fixtures And Adjustment Equipment; Battery For Memory Backup; Replacing The Dc-Dc Converter - Sony DIGITAL BETACAM DVW-707 Maintenance Manual

1-14. Fixtures and Adjustment Equipment

1-15. Battery for Memory Backup

1-16. Replacing the DC-DC Converter

1-14. Fixtures and Adjustment Equipment
As for the required fixtures and adjustment equipment for
the maintenance of this unit, refer to Section "1-1. Fixtures
and Adjustment Equipment" in the Maintenance Manual
Part 2 Vol.1.
1-15. Battery for Memory Backup
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When replacing the battery, ensure that the battery is
installed with "+" and "_" poles connected to the correct
terminals.
An improper connection may cause an explosion or
leakage of fluid.
The unit is equipped with a battery (BT801) for the
memory backup on the TC-101 board. When replacing, be
sure to use the specified part.
Ref. No. : BT801 (B-2/TC-101 board)
Description : CR-2450 (lithium-ion battery)
Part No. : 1-528-229-11
Recommended Replacement Period : Every five years
The memory IC stores the data such as date and time.
If the backup battery is dead or replaced, these data are all
cleared.
See Section "4-10. VTR Menu Display in the Display
Panel" in the Operation Manual to reset the data.
1-28
1-16. Replacing the DC-DC Converter
1. Remove the outside panel. (Refer to Section 1-6.)
2. Disconnect the DC-DC converter from the connector
of the MB-811 board to remove it.
MB-811 board
DC-DC converter
DVW-790WS/709WS/707
DVW-790WSP/709WSP/707P P1