Text preview for : over.pdf part of Nokia 6081 Service Manual, Part, Variant, Tools, Troubleshooting, Schematic, ecc. - File 33
Back to : NME-2A.part1.rar | Home
Programmes After Market Services (P.A.M.S.) Technical Documentation NME2A Series Transceivers
Chapter 1 Transceiver Overview
Original 08/97
NME2A Transceiver Overview
P.A.M.S. Technical Documentation
CHAPTER 3 TRANSCEIVER OVERVIEW CONTENTS Page No
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Exploded View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Assembly Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 33 34 35 36
Page 1 2
Original 08/97
P.A.M.S. Technical Documentation
NME2A Transceiver Overview
Introduction
This document contains the transceiver level description of the 6081 GSM Class 2 mobile phone. Detailed information can be obtained by referring to relevant module description. The 6081 is a class 2 (8 watt) mobile transceiver designed to meet the car manufactures requirements for installation interface (VDA 25 pole Sub D connector). Data interface is accomplished by means of a 16 pole connector located in the front plate of the transceiver.
Functional Description
The phone electronics consist of system module (system + RF blocks). External handset is connected to system module with a system connector. System blocks and RF blocks are interconnected with PCB wirings. The transceiver can be connected to data accessories with a data connector and also an external sim card reader. The system blocks provides MCU and DSP environments, logic control IC (EDSA), memories, audio processing and RF control hardware (RFI). On board power supply circuitry delivers operating voltage for both system and RF blocks. The general purpose microcontroller, Hitachi H8, communicates with DSP, memories and logic control IC (EDSA) with 8 bit data bus. RF block is designed for a mobile phone; which operates in GSM system. Purpose of the RF block is to receive and demodulate radio frequency signal from the base station and to transmit a modulated RF signal to the base station.
Original 08/97
Page 1 3
NME2A Transceiver Overview
P.A.M.S. Technical Documentation
Block Diagram
2 HF MICROPHONE 2 HF SPEAKER
+ 12 V (red) GROUND (black) IGNS (blue) XCRM (yellow) ANTC (orange)
8 HANDSET SYSTEM CABLE
7
2 ANTENNA
25
NME2A
(GM8 system module)
6
16
SIM
DATA CONNECTOR
Page 1 4
Original 08/97
P.A.M.S. Technical Documentation
NME2A Transceiver Overview
Exploded View
1 2 3
4 5
6
C0600081
Original 08/97
Page 1 5
NME2A Transceiver Overview
P.A.M.S. Technical Documentation
Assembly Parts
ITEM 1 2 3 4 5 6 Q'TY CODE 9450682 6290007 9537036 0201102 9540015 9450588 DESCRIPTION Top enclosure Screw Top shield Assembly GM8 module Bottom enclosure SIM guidance VALUE, TYPE
16
Page 1 6
Original 08/97