Service devices
Product specific devices
The table below gives a short overview of service devices that can be used for testing, error analysis, and
repair of product RM-561. For the correct use of the service devices, and the best effort of workbench setup,
please refer to various concepts.
MJ-248 Module jig
MJ-248 is meant for component level troubleshooting.
The jig includes an RF interface for GSM and Bluetooth. In addition, it
has the following features:
•
Provides mechanical interface with the engine module
•
Provides galvanic connection to all needed test pads in module
•
Multiplexing between USB and FBUS media, controlled by Vusb
•
MMC interface
•
Duplicated SIM connector
•
Connector for control unit
•
Access for AV- and USB connectors
SA-130 RF coupler
SA-130 is an RF coupler for GSM RF testing. It is used together with
SS-46 and SS-62.
The following table shows attenuations from the antenna pads of the
mobile terminal to the SMA connectors of SA-130:
•
Band default f/
MHz RX
Attenuati
on RX
default f/
MHz TX
Attenuati
on TX
GSM850 881.6 0.20 836.6 0.15
GSM900 942.4 0.20 897.4 0.15
GSM1800 1842.8 0.30 1747.8 0.25
GSM1900 1960.0 0.30 1880.0 0.30
General devices
The table below gives a short overview of service devices that can be used for testing, error analysis, and
repair of product RM-561. For the correct use of the service devices, and the best effort of workbench setup,
please refer to various concepts.
RM-561
Service Devices and Service Concepts
Issue 1 COMPANY CONFIDENTIAL Page 2 –5
Copyright © 2009 Nokia. All rights reserved.
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