Replacing The Lithium Battery; Figure 38. Lithium Battery Test Points On The Cpu Board - Teledyne WORKHORSE Operation Manual

WorkHorse H-ADCP Operation Manual
6. If the voltage is not holding for more than a week, then the battery may be defective. Before con-
tinuing, review your options:
•
Replace the Lithium battery yourself.
•
If you are uncomfortable with replacing the battery, please contact
Administration
thorization (RMA) directly from our website <here>.
Figure 38.

Replacing the Lithium Battery

To replace the battery:
1. Attach an earth-grounded wrist strap.
Before handling any of the H-ADCP boards, you must be sure that you always wear an earth-
grounding static protection strap. The electronics in the H-ADCP are very sensitive to electro-
static discharge (ESD). ESD can cause damage that will not be seen immediately and will
result in early failure of electronic components.
2. Remove all power from the H-ADCP.
Wait a few minutes after turning the power off before removing the electronics stack.
This allows the transmit capacitors on the PIO board time to discharge.
3. Remove the transducer head assembly.
4. Remove the CPU board from the main electronic stack (see
5. Locate the lithium battery B1 (on the top side of the CPU board).
6. De-solder the two associated pins for B1 which are located on the underside of the CPU board.
to schedule a replacement of the battery or request a Return Merchandise Au-
Lithium Battery Test Points on the CPU Board
EAR-Controlled Technology Subject to Restrictions Contained on the Cover Page.
TRDI Customer Service
Installing the Spare Boards
May 2015
Kit).
Page 79