Chapter 5. Repair And Cleaning; Battery Replacement; Battery Replacement View - Honeywell VXP System Maintenance Manual

Chapter 5
Repair and Cleaning
5.
The most common repair to the VXP will be changing the battery. Other than that, the only major
components in the VXP kit that you will be repairing are the cables. All other repairs of any
components will be done by the manufacturer. The components will be shipped to Chadwick-
Helmuth for repair, and returned.

5.1 BATTERY REPLACEMENT

The AU contains a battery that is used to maintain the contents of the SRAM in the absence of
aircraft power. It has a life expectancy of approximately 5 to 7 years. This battery is located at the
rear of the Power Supply & Expansion PCB assembly. The battery can be replaced by
disassembling the AU to expose the PCBs. Figure 5-1 show the locations of the PCBs.
Figure 5-1. Battery Replacement View
VXP System Maintenance Manual 5-1