April 2009
920i Programmable Indicator
Battery Pins Soldering Instructions
PN 110500
If your 920i indicator is displaying the “
Low Battery
” warning shown in Figure 1, check the battery voltage.
Normal voltage range is 2.6V - 3.3V. If the reading is at or below 2.6V, replace the battery. If the reading is still at
or below 2.6V, the battery pins may need additional soldering.
04/08/2009
02:14PM
SCALE #1
!
Low Battery
Scale
#
Figure 1. Low Battery warning on 920i screen
Good
Solder
Coverage
These procedures are to be performed by qualified service personnel only.
This unit uses double
pole/neutral fusing which could create an electric shock hazard.
Use a wrist strap to ground yourself and
protect components from electrostatic discharge (ESD) when working inside the indicator enclosure.
1. Using iRev, back up all databases and 920 files.
2. Disconnect power by unplugging the power cable.
3. Inspect the battery pins. The pins should be evenly covered with solder with no pin exposed. Refer to
Figure 2 and Figure 3 for examples.
Figure 2. Desired solder applied to lower battery pin
Exposed
Pin
Figure 3. Inadequate solder covering on lower battery pin
4. It may be necessary to remove the battery in order to inspect the top battery pin near the “
HIGH VOLTAGE
”
wording on the board (see Figure 4 and Figure 5 on page 2).
