PC Board Quick References
Manual # 42-02-1P28 A3 6-17
HC-MPU-2-TS Battery
The battery sustains volatile information when the power is off. Controller operating parame-
ters are stored in battery backed memory and will not be affected by battery removal as long as
power is applied to the controller. The battery provides 3.3 VDC. If battery voltage falls below
2.2 VDC, the battery should be replaced. If battery replacement is part of a regular maintenance
schedule, we recommend it be replaced every two years.
Replacement:
1. Place the car on Inspection by placing the MODE switch on the HC-CTL-2 board in the
INSP position. DO NOT remove power to the controller as this will cause the HC-MPU-
2-TS parameters to be reset to default values.
2. On the HC-MPU-2-TS board, use a non-conductive flat tool to lift the battery tab and
slide the old battery out of the battery holder.
3. Install a new battery on the HC-MPU-2-TS board.
4. Return the car to service by placing the MODE switch on the HC-CTL-2 board in the
NORM position.
Table 6.15 HC-MPU-2-TS Battery
Type Original Specification
Sanyo CR2032, 3V, Mn D2-Li cell
To Next Page
Loading...
