Sepura SC21 Series Service Guide

Foreword
This manual covers all models of the SC21 Series hand-portable radio and is provided exclusively to
Sepura customers that have been authorised to maintain and repair the product.
This guide contains all the necessary information to maintain the radio in good working condition and
replace external parts. All servicing should be performed by a competent, trained and qualified
person who has obtained suitable training provided by Sepura.
Do not attempt to dismantle this product beyond the instructions described in this Service Guide. Any
product requiring repairs beyond those listed in this Service Guide must be retuned to an approved
Sepura service centre for repair. Contact your service provider or Sepura for information about
returning this product for repair.
The person performing maintenance and repairs on the radio should have a basic understanding of
how to operate the product. For information on how to operate the radio, refer to the related
documents for the product.
Document history
Printed copies may not be the latest version of this document. Always check that you have the latest
version of this document before attempting any repairs.
The following major changes have been implemented in this document.
Edition Description of Change Date
1.0 First release 03/2018
1.1
Minor updates to parts list. Updated document template.
06/2018
1.2 UV band model radio added (SC2124). Updated and additional parts for IP67 rating. 02/2019
Related documents
The following documents are related to this product and may be of use during the servicing of the
product. Contact Sepura Customer Support (Customer.Support@sepura.com) for the latest
versions of these documents.
Document title Document Number
SC21 Hand-Portable Radio User Guide MOD-17-2158
SC21 Hand-Portable Radio Quick Start Guide MOD-17-2176
SC21 Hand-Portable Radio Quick Reference Guide SPR-DOC-03312
Sepura TETRAProduct Safety Guide SPR-DOC-00170
Sepura Product Care Guide PD-T201405
Battery Care & Management MOD-13-1654
Level 1 Service Guide I

Sepura SC21 Series Specifications

General

IP Rating	IP54
Operating Temperature	-20°C to +55°C
Channel Spacing	25 kHz
Ingress Protection	IP54
Channels	Up to 2000
Frequency Bands	380-430 MHz, 806-870 MHz
Battery Life	Up to 14 hours
RF Power Output	1W
TETRA Air Interface	ETSI EN 300 392-2