Nokia 2600 服务手册
RH-59/60
Nokia Customer Care
7-System Module
24
COMPANY CONFIDENTIAL
ISSUE 1 09/2004
Copyright © 2004 Nokia. All Rights Reserved.
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Test interfaces
The test pattern is placed on engine PWB, for service purposes, same test pattern is used for
after sales purposes as well.
after sales purposes as well.
Through MBUS or FBUS connections, the phone HW can be tested by PC software (Phoenix).
The test points are listed in the A3 size schematic diagrams
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Connections to baseband
The flash programming box, FPS8, is connected to the baseband using a galvanic connector
or test pads for galvanic connection.
or test pads for galvanic connection.
FBUS interface
FBUS is an asynchronous data bus having separate TX and RX signals. Default bit rate of the
bus is 115.2 kbit/s. FBUS is mainly used for controlling phone when flashing.
bus is 115.2 kbit/s. FBUS is mainly used for controlling phone when flashing.
MBUS interface
MBUS interface is used for controlling the phone in service. It is bi-directional serial bus be-
tween the phone and PC. The default transmission speed is 9.6 kbit/s.
tween the phone and PC. The default transmission speed is 9.6 kbit/s.