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After Sales Technical Documentation

Mobile Base MCH­8

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NMP Part No. 0275275

After Sales Mobile Base MCH­8 Technical Documentation

CONTENTS
Mobile Base MCH­8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Technical Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Technical Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Modes of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . External Signals and Connections . . . . . . . . . . . . . . . . . . . . Junction Box Connector X101 . . . . . . . . . . . . . . . . . . . . . Handportable Connector X100 . . . . . . . . . . . . . . . . . . . . . Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Circuit Diagram of DH1 (Version 6.0 Edit:19 layout 07) . . . . Parts List of DH1 (Version 1.3) Code: 0200182 . . . . . . . . . . Exploded View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Assembly Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ­3 ­3 ­3 ­4 ­4 ­4 ­4 ­4 ­5 ­6 ­7 ­8 ­9

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After Sales Technical Documentation Mobile Base MCH­8

Mobile Base MCH­8
Introduction
MCH­8 is the holder unit of the handportable in a mobile environment. The main function of the MBH­8 is to secure the phone firmly in the car and provide a basis for the connection of signals between the phone and the accessories. It connects handportable to junction box, booster and mobile antenna.

MCH­8

Technical Summary
HF operations are possible when transceiver is installed into the mobile base with the HFJ­3 junction box. The battery of te transceiver can be charged via the mobile base.

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Technical Specification
Modes of Operation
When handportable is in the MCH­8 holder unit audio signals turn to junction box and rf signal to booster or mobile antenna. Also battery of handportable is charged by junction box through MCH­8.

External Signals and Connections
Mobile base module DH1 has two external connectors, the handportable connector X101 and the junction box connector X102. It also contains one RF connector to connect RF signal/signals to car antenna. Junction Box Connector X101 Pin: 1 2 3 4 5 6 7 Name: BIND GND M2BUS VC SHIELD AGND XMIC/JCONN Ground for charger Serial mbus data between handportable, accessories and junction box Supply voltage/charging current for handportable 12 V ±1 V or 800 mA ±70 mA Cable shield, connected to GND Signal ground Audio signal from junction box to hand portable, d.c. level indicates connection of junction box to handportable Audio signal from handportable to junction box, current sink from this pin to handportable turns on +5 V supply voltage in junction box Function:

8

XEAR/HFPWR

Handportable Connector X100 Pin: 1 2 Name: GND XMIC Function: Logic ground, ground for charger Audio signal from junction box to handportable, d.c. level indicates connection of junction box to handportable Signal ground NC Original 50/96

3 4

AGND TDA

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After Sales Technical Documentation Mobile Base MCH­8

5 6 7 8, 16 9 10

M2BUS HOOK PHFS VC GND XEAR

Serial mbus data between handportable, accessories and junction box NC NC Supply voltage/charging current for handportable 12 V ±1 V or 800 mA ±70 mA Ground Audio signal from handportable to junction box, current sink from this pin to handportable turns on +5 V supply voltage in junction box NC NC NC NC

11 12 13 14 15

DSYNC RDA BIND VF DCLK

Functional Description
The DH1 module contains filtering for signals between handportable and junction box/booster. Handportable is connected to DH1 by connector X100 and junction box and booster by connector X101. RF signal from handportable to mobile antenna or booster is connected by the special RF cable.

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Circuit Diagram of DH1 (Version 6.0 Edit:19 ) (for layout version 07)

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After Sales Technical Documentation Mobile Base MCH­8

Parts List of DH1
ITEM R102 R103 R107 R108 C101 C102 C103 C104 C105 C106 C107 C108 C109 L103 L104 L106 X101 X102 CODE 1413924 1413917 1413924 1411645 2310343 2310343 2310343 2310343 2310343 2310784 2310343 2310343 2310424 3641306 3606946 0164030 5469778 5416638 9853923 9853923

(Version 1.3)

Code: 0200182 VALUE TYPE 5 % 0.1 W 0805 5 % 0.1 W 0805 5 % 0.1 W 0805 5 % 0.12 W 1206 5 % 50 V 0805 5 % 50 V 0805 5 % 50 V 0805 5 % 50 V 0805 5 % 50 V 0805 10 % 25 V 0805 5 % 50 V 0805 5 % 50 V 0805 5 % 50 V 0805 5 % Q=33/25 MHz 1008 1206 SMD 1.5 29.5x42x1.6 d 12/pa

DESCRIPTION

Chip resistor 220 Chip resistor 150 Chip resistor 220 Chip resistor 560 Ceramic cap. 22 p Ceramic cap. 22 p Ceramic cap. 22 p Ceramic cap. 22 p Ceramic cap. 22 p Ceramic cap. 100 n Ceramic cap. 22 p Ceramic cap. 22 p Ceramic cap. 100 p Chip coil Ferrite bead 0.2r 26r/100mhz 1206 Choke 9u Accessory connector hd720 smd Connector 8­pole right angle 1.5 PCB DH1 29.5X42X1.6 D 12/PA PC board DH1

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Exploded View

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Assembly Parts
ITEM 1 2 3 4 5 6 7 8 9, 10 11 12 13 15 15 15 15 16 17 18 C1 Q'TY CODE 9450280 9460094 9460093 9460095 9450278 9460135 6400088 9560013 9780089 9780088 9450279 6293010 9380154 9380154 9380154 9380154 6400318 6293447 9560012 0200182 DESCRIPTION VALUE, TYPE

2 2 2 2

4

2

Front cover 1D 23116 Synchro element 1D 23119 Locking knob 1D 23118 Release slide 2D 23357 Release button 1D 23117 Pushing slide 1D 24549 Slide spring 4D 24036 Spring 4D 23226 RF cable 4C 22839 HFJ cable 4C 22493 Bottom cover 1D 23115 PT screw KB22x8 FeZn black Type label (print made in Finland 4D 23469) Nokia Type label (print made in Finland 4D 23527) AT&T Type label (print made in Scotland 4D 25712) Type label (print made in USA 4D 25893) Nokia Cable tie 2.3x80 black PT screw KB22x5 FeZn blk Slide spring 4D 23359 Mobile base module DH1

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