Maintenance | 321
Aprisa SRi User Manual 1.1.0
10.
Maintenance
Spare Fuses
The Aprisa SRi PBA contains two fuses in the power input with designators F1 and F2. Both the positive and
negative power connections are fused. The fuse type is a Littelfuse 0454007 with a rating of 7 A, 75 V, very
fast acting.
To replace the fuses:
1. Remove the input power and antenna cable.
2. Unscrew the enclosure securing screws (posi 2).
2. Separate the enclosure halves.
CAUTION:
Antistatic precautions must be taken as the internal components are static sensitive.
3. Access the enclosure spare fuses under the plastic cap.