Agilent Technologies 8590 Series Service Manual page 338

Replacing Major Assemblies
A16A1BT1 Battery
A16A1C1 maintains the voltage required to back up RAM for a
NOTE
maximum of 8 hours. A16A1C1 is the large round capacitor next to
A16A1BT1.
4. Replace and solder the leads of the new battery, ensuring proper
5. Record the battery-replacement date on the battery label located on
6. Replace the A16A1 memory board assembly onto the A16
7. Connect the power cord to the analyzer and turn the power on for
338
polarity as silkscreened on the A16A1 board assembly.
the analyzer rear frame.
processor/video board. Refer to the
A16A1 Memory Board Assembly."
about five minutes. This allows the supercap to fully charge and
insures the battery switching circuitry is in the correct mode.
"A16 Processor/Video Board and
replacement procedure.
Chapter 7