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Battery Replacement on the Memory Board
A lithium battery (Tadiran #TL-5903) is installed on the memory board and will retain data for
more than one year. For data reliability, a yearly replacement of this battery is recommended. Be
sure any data stored in the VR60 is downloaded to a computer
before
replacing the battery.
There are two methods used to replace the battery, depending on how the battery is attached to the
board. If the battery is in a battery holder, follow the steps listed below to replace the battery:
1. Verify that the power switch is in the OFF position.
2. Open the VR60 receiver case (see
To Open VR60 Receiver Case
section).
3. Remove the lithium battery from the data storage board.
4. Place the new lithium battery on the board, making sure to align the positive (+) marking on the
battery with the markings on the battery holder.
Inserting the battery in backwards will
seriously harm the electronic components.
If the battery is soldered to the memory board, follow the steps listed below to replace the battery:
1. Verify that the power switch is in the OFF position.
2. Open the VR60 receiver case (see
To Open VR60 Receiver Case
section).
3. Remove the lithium battery from the data storage board with a soldering iron.
4. Solder the new lithium battery on the board, making sure to align the positive (+) marking on
the battery with the markings on the printed circuit board.
Inserting the battery in backwards
will seriously harm the electronic components.
IMPORTANT: After replacing the data storage battery, erase the data (see
Erase Data
section). If
the data is not erased, the print or view routines will not be able to locate the END OF DATA
pointer and will display random data residing in memory.
EXTENDED CABLE (OPTION 04)
The VH65 hydrophone cable length supplied with the VR60 receiver is 5 meters. Additional cable
length is available at the time the hydrophone is manufactured. The additional length order is
referred to as Option 04. Contact VEMCO for information on available lengths.