322 | Maintenance
Aprisa SRi User Manual 1.1.0
4. Replace the two fuses.
5. Close the enclosure and tighten the screws.
Note:
Is it critical that the screws are re-tightened to 1.2 Nm. The transmitter adjacent channel
performance can be degraded if the screws are not tightened correctly.
Additional Spare Fuses
Additional spare fuses can be ordered from 4RF:
Part Number
Part Description
APST-FNAN-454-07-02
4RF SR+ Spare, Fuse, Nano SMF, 454 Series, 7A, 2 items
No User-Serviceable Components
Except for fuse replacement, there are no user-serviceable components within the radio.
All hardware maintenance must be completed by 4RF or an authorized service centre.
Do not attempt to carry out repairs to any boards or parts.
Return all faulty radios to 4RF or an authorized service centre.
For more information on maintenance and training, please contact 4RF Customer Services at
CAUTION:
Electro Static Discharge (ESD) can damage or destroy the sensitive electrical components in the
radio.