14-22 Service Guide
Assembly Replacement and Post-Repair Procedures 8719ET/20ET/22ET
Removing the A7BT1 Battery 8719ES/20ES/22ES
RF Network Analyzers
Removing the A7BT1 Battery
Tools Required
• T-10 TORX screwdriver
• ESD (electrostatic discharge) grounding wrist strap
• soldering iron with associated soldering tools
Removal
1. Remove the A7 CPU board; refer to “Removing the A7 CPU Board Assembly” on
page 14-20.
2. Unsolder and remove A7BT1 from the A7 CPU board.
WARNING Battery A7BT1 contains lithium. The battery may explode if it is
incorrectly replaced. Do not incinerate or puncture this battery.
Either dispose of the discharged battery, according to
manufacturer’s instructions, or collect as small chemical waste.
Replacement
1. Make sure the new battery is inserted into the A7 board with the correct polarity.
2. Solder the battery into place.
3. Replace the A7 CPU board; refer to “Removing the A7 CPU Board Assembly” on
page 14-20.
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