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service manual
Ericsson Mobile Phone
Type 1030601-BV
EN/LZB 126 1319 R2A
System Introduction 1
Service Technical Description 2
Manual
Test/Service Programs 3
Service Instructions 4
Accessories 5
HandsFree Installation 6
Spare Parts 7
Ericsson
Mobile Service Messages 8
Phone
1030601-BV
EN/LZB 126 1319 R2A
HandsFree Installation
Vehicle HandsFree Solutions HF7300 & HF7600
Music Mute
Data Extension / External Handset
via Data Extension Unit
5
General Information EN/LZB 119 2506 R1A
Introduction
This manual is intended to assist certified Service Technicians in repair of the AF738
and AF778 cellular telephones.
Table 1-1 provides a list of the standard accessories for the AF738 and AF778
cellular phones. Refer to Chapter 3 for more information.
Table 1-1. Accessories
Accessory Name Model Number
NiMH Battery (650 mA) NM-7065
Rapid Charger * SC-6000
Vehicle Power and Charge VP-6000
Desk Top Charger * MC-7000
Travel Charger TC-6000
Portable Handsfree Unit PO-6000
Vehicle Handsfree Solution (Semi-Duplex) HF-7300
Vehicle Handsfree Solution (Full-Duplex) HF-7600
Mobile Office Solution AC28
Mobile Data Cable Kit RPM 113 2057/55
* Note: This model has different part numbers depending on the electrical
requirements in the country used. Contact your Regional Service
Representative for more information.
1-1
EN/LZB 119 2506 R1A General Information
Maintenance/Repair Philosophy
Table 1-2 explains the maintenance levels of all Ericsson products.
Table 1-2. Maintenance/Repair Levels
Maintenance Function Definition
Level Responsible
Level 1 Local Complete unit swap
Distributor Repair/exchange of mechanical parts
Not allowed to open unit
Level 2 Authorized Level 1 plus:
Regional Allowed to open units and exchange
Service Center parts indicated as Level 2 on Spare Parts
List
Level 3 Authorized Level 2 plus:
Regional Allowed to replace some solderable
Service Center parts indicated as Level 3 on Spare Parts
List
Level 4 Authorized Level 3 plus:
Global Repair Refurbishing and relabeling allowed
Center Revision status changes allowed
Level 5 Ericsson Repair All mechanical and component repair
Center
Revisions to This Manual
This manual will be revised throughout the life cycle of the product as revisions to
the units and accessories are implemented. User comments are appreciated. A Repair
Manual Review Form has been included at the end of this manual for processing of
user comments.
1-2
General Information EN/LZB 119 2506 R1A
Other Product Documentation
Refer to the following publications for information not contained in this manual:
· User's Manuals:
AF738: Publication Number LZT 123 3610
AF778: Publication Number LZT 123 3989
· Service Center Certification Manual, Level III: Publication Number
LZB 119 3020 (Contact your Regional Service Representative for
information)
Spare Parts
Please contact your Regional Service Representative for spare parts information.
Warranty Information
Please contact your Regional Service Representative for warranty information.
ESD Guidelines
Observe the following guidelines for ESD protection when performing the repairs
documented in this manual:
· Workbench surfaces must be protected by anti-static material and connected
to ground.
· Always wear a grounded wriststrap or heelstrap.
· Ensure that tools such as soldering irons are properly grounded.
· PCBs and other ESD-sensitive components must be transported and stored in
non-conducting packages such as ESD-safety bags and boxes.
· Periodically test ESD equipment with and an appropriate tester to ensure
proper protection.
1-3
EN/LZB 119 2506 R1A General Information
For more information on ESD requirements and practices, contact your Regional
Service Representative to obtain the following:
· Service Center Certification Manual, Level III (Publication Number
LZB 119 3020)
· Ericsson Standard ST22, "Electrical Standard"
Personnel and Equipment Safety
To protect personnel from injury and equipment from unnecessary damage, the
following are used to highlight possible hazards:
NOTE
Used to tell the operator things that are helpful in
understanding a concept or performing a procedure.
CAUTION
Used to tell the operator that a certain action or condition
could be harmful to the equipment.
WARNING
Used to tell the operator that a certain action or condition
could be harmful to the operator or others.
1-4
General Information EN/LZB 119 2506 R1A
List of Acronyms and Abbreviations
Table 1-3 lists standard acronyms and abbreviation used in cellular documentation.
Table 1-3. List of Acronyms and Abbreviations
Acronym/ Definition
Abbreviation
AC Authentication Center
ACCH Analog Control Channel
A/D Analog to Digital
AF Audio Frequency
AFC Automatic Frequency Control
AFMS Audio from Mobile Station
AGC Automatic Gain Control
A-Key Authentication Key
AM Amplitude Modulation
AMPS Advanced Mobile Phone System
ASIC Application Specific Integrated Circuit
ATMS Audio to Mobile Station
AUTH Authentication
AUTHR Authentication Response
AVC Analog Voice Channel
B-Number Dialed Number
BAR Beep, Alarm, Ring
Basic Pad Packet Assembly/Disassembly Service
BS Base Station
CH Channel
CU Control Unit
DAMPS Digital Advanced Mobile Phone System
DCCH Digital Control Channel
EEPROM Electrically-Erasable Programmable Read-Only Memory
EPROM Erasable Programmable Read-Only Memory
ESD Electrostatic Sensitive Device/Electrostatic Discharge
ESN Electronic Serial Number
FET Field Effect Transistor
FM Frequency Modulation
FSK Frequency Shift Keying
FVC Forward Voice Channel
GaAs Gallium Arsenide
GSM Global System for Mobile Communications
I Idle
1-5
EN/LZB 119 2506 R1A General Information
Table 1-3. List of Acronyms and Abbreviations
Acronym/ Definition
Abbreviation
IC Integrated Circuit
ID Identification
IF Intermediate Frequency
IS Interim Standard
ISDN Integrated Services Digital Network
LAN Local Area Network
MS Mobile Station
MSC Mobile Switching Center
MSID Mobile Station Identification
MSIN Mobile Station Identification Number
MU Mobile Unit
NB Normal Burst
NADC North American Digital Cellular
OMC Operations and Maintenance Center
OMS Operations and Maintenance Subsystem
OSS Operations and Support Systems
PA Power Amplifier
PAD Packet Assembly/Disassembly
PCH Paging Channel
PCS Personal Communications Services
PIN Personal Identification Number
PLMIN Public land Mobile Network
PROM Programmable Read-Only Memory
PSU Power Supply Unit
PTSN Public Telephone Switching Network
PWR Power
RAND Random Number
RBS Radio Base Station
RF Radio Frequency
RRX Radio Receiver
RSA Rural Service Area
RSS Received Signal Strength
RX Receive
SAT Supervisory Audio Tone
SID System Identification
SIM Subscriber Identity Module
SMS Short message Service
SNB Subscriber Number
S/N Signal-to-Noise Ratio
SS Switching System
1-6
General Information EN/LZB 119 2506 R1A
Table 1-3. List of Acronyms and Abbreviations
Acronym/ Definition
Abbreviation
ST Signaling Tone
TACS Total Access Communications System
TRM Transceiver Module
TRU Transceiver Unit
TRX Transceiver
TS Time Slot
TSS Trunk and Signaling System
TX Transmit
VC Voice Channel
VCO Voltage-Controlled Oscillator
VCTCXO Voltage-Controlled Temperatu7re Compensated Crystal
Oscillator
1-7
Preface
The Ericsson service philosophy includes the ambition that engineers serving our
telephones also possess a general knowledge of the system for which they are
intended, as well as of the phone itself and its accessories.
This manual contains consequently not only information regarding the actual serv-
ice work but also additional information as stated below.
Section 1: System Introduction
- network description
- frequency tables
Section 2: Technical Description
- description of the mechanical design
- operational description of the electronic circuitries
- technical specifications
Section 3: Test/Service Programs
- test equipment
- test program
- ETACS service program
- keypad NAM programming
- flash programming
Section 4: Service Instructions
- system connector signals
- disassembly/reassembly
- PCB exchange
- fault finding and alignment
Section 5: Accessories
- technical descriptions of available accessories
Section 6: HandsFree Installation
- installation instructions regarding vehicle handsfree kits
Section 7: Spare Parts
- section reserved for separately distributed spare parts lists
Section 8: Service Messages
- section reserved for separately distributed service messages
Contents
1 System Introduction
The Mobile Telephone Network _______________________________ 5
Frequency Tables__________________________________________ 11
2 Technical Description
Overview _________________________________________________ 7
Mechanical Design ________________________________________ 11
Man Machine Interface (MMI) _______________________________ 12
Radio Design _____________________________________________ 13
Power and Charging Design _________________________________ 20
User Interface ____________________________________________ 23
Logic Design _____________________________________________ 24
Audio Design_____________________________________________ 27
Software Design __________________________________________ 33
Technical Specifications ____________________________________ 34
3 Test/Service Programs
Test Equipment ____________________________________________ 5
Test Program ______________________________________________ 7
ETACS Service Programs ___________________________________ 17
Keypad NAM Programming _________________________________ 33
Flash Programming ________________________________________ 43
4 Service Instructions
System Connector Signals____________________________________ 5
Disassembly_______________________________________________ 6
Reassembly _______________________________________________ 7
Exchanging the Circuit Board _________________________________ 9
Fault Finding and Alignment ________________________________ 10
5 Accessories
Rapid Charger _____________________________________________ 7
Travel Charger_____________________________________________ 9
Vehicle Power/Charger _____________________________________ 13
DeskTop Charger MC7000 __________________________________ 17
Portable HandsFree ________________________________________ 25
Vehicle HandsFree Solution HF7300 __________________________ 27
Vehicle HandsFree Solution HF7600 __________________________ 35
6 HandsFree Installation
Vehicle HandsFree Solutions HF7300 & HF7600 _________________ 5
7 Spare Parts
8 Service Messages
EN/LZB 119 2506 R1A Accessories
SUBJECT .................................................................................... PAGE
Introduction.........................................................................................................3-1
Table 3-1. Accessories ...................................................................................3-1
Belt Clip Installation ...........................................................................................3-2
Figure 3-1. Belt Clip Installation ....................................................................3-2
Battery Information ............................................................................................3-3
Figure 3-2. 650 mA Nickel Metal Hydride (NiMH) Battery ...........................3-3
Battery Replacement......................................................................................3-4
Figure 3-3. Removing the Battery ..................................................................3-4
Figure 3-4. replacing the Battery ....................................................................3-4
Connector Information...................................................................................3-5
Figure 3-5. Battery Connector........................................................................3-5
Table 3-2. Battery Connector Signals .............................................................3-5
Battery Chargers .................................................................................................3-6
Table 3-3. Battery Charger Features...............................................................3-6
Rapid Charger................................................................................................3-7
Figure 3-6. Rapid Charger..............................................................................3-7
Installation.....................................................................................................3-7
Figure 3-7. Installing the Standard Charger ....................................................3-7
Figure 3-8. Detaching the Standard Charger...................................................3-8
Connector and Signals ...................................................................................3-8
Figure 3-9. Connector ....................................................................................3-8
Table 3-4. Connector Signals .........................................................................3-8
Rapid Charger Specifications .........................................................................3-9
Travel Charger...............................................................................................3-9
Installation.....................................................................................................3-9
Figure 3-10. travel Charger............................................................................3-9
Connectors and Signals................................................................................3-10
Figure 3-11. Travel Charger Connector........................................................3-10
Table 3-5. Connector Signals .......................................................................3-10
Travel Charger Specifications ......................................................................3-10
Desk Top Charger........................................................................................3-11
Figure 3-12. Desk Top Charger....................................................................3-11
Installation...................................................................................................3-12
Figure 3-13. Desk Top Charger Installation..................................................3-12
Connectors and Signals................................................................................3-13
Figure 3-14. Connector ................................................................................3-13
Table 3-6. Connector Signals .......................................................................3-13
Desk Top Charger Specifications .................................................................3-13
ii
Accessories EN/LZB 119 2506 R1A
SUBJECT .................................................................................... PAGE
Vehicle Power and Charge .......................................................................... 3-14
Installation .................................................................................................. 3-14
Figure 3-15. Vehicle Power and Charge Installation .................................... 3-14
Connectors and Signals ............................................................................... 3-14
Vehicle Power and Charge Specifications.................................................... 3-14
Portable Handsfree Unit................................................................................... 3-15
Figure 3-16. Portable Handsfree Unit .......................................................... 3-15
Installation ................................................................................................ 3-16
Connectors and Signals ............................................................................... 3-16
Figure 3-17.Connectors............................................................................... 3-16
Table 3-7. Connector Signals ...................................................................... 3-16
Portable Handsfree Unit Specifications ....................................................... 3-17
Vehicle Handsfree Kit....................................................................................... 3-18
Figure 3-18. Vehicle Handsfree Kit............................................................. 3-18
HandsFree Features..................................................................................... 3-19
Table 3-8. Vehicle Handsfree Kit Features .................................................. 3-19
Cradle ......................................................................................................... 3-19
Cradle Cables.............................................................................................. 3-20
Stick-On Microphone.................................................................................. 3-20
External Speaker ......................................................................................... 3-20
HF-7600 Functional Description ................................................................. 3-20
Microphone Amplifier ................................................................................ 3-21
Speaker Amplifier....................................................................................... 3-21
Modem/Handset Option .............................................................................. 3-21
Audio Switch Control ................................................................................. 3-21
External Audio Control ............................................................................... 3-22
Music Mute Control .................................................................................... 3-22
Power Supply.............................................................................................. 3-22
Phone Operation ......................................................................................... 3-23
Battery Charger........................................................................................... 3-23
Figure 3-19. Vehicle Handsfree Kit Block Diagram .................................... 3-23
Optional Accessories................................................................................... 3-24
Music Mute................................................................................................. 3-24
Goose-Neck Microphone............................................................................. 3-24
Data Extension............................................................................................ 3-24
External Handset......................................................................................... 3-24
Speaker Path ............................................................................................... 3-24
Installation .................................................................................................. 3-25
Figure 3-20. Vehicle Handsfree Kit Connectors .......................................... 3-25
Table 3-9. Vehicle Handsfree Kit Connections ............................................ 3-25
Figure 3-21. Cradle Mount Installation........................................................ 3-26
iii
EN/LZB 119 2506 R1A Accessories
SUBJECT .................................................................................... PAGE
Figure 3-22. Cradle Installation....................................................................3-26
Figure 3-23. Securing the Cradle to the Cradle Mount..................................3-27
Figure 3-24. Connecting the Cradle to the Vehicle Handsfree Unit...............3-27
Figure 3-25. Vehicle Handsfree Installation .................................................3-29
Connector and Signals .................................................................................3-30
Cradle Connector.........................................................................................3-30
Figure 3-26. Cradle Connector.....................................................................3-30
Table 3-10. Cradle Connector Signals ..........................................................3-30
Power Connector .........................................................................................3-31
Figure 3-27. Power Connector .....................................................................3-31
Table 3-11. Power Connector Signals...........................................................3-31
Modular Connector......................................................................................3-32
Figure 3-28. Modular Connector..................................................................3-32
Table 3-12. Modular Connector Signals .......................................................3-32
Music Mute Connector ................................................................................3-33
Figure 3-29. Music Mute Connector ............................................................3-33
Table 3-13. Music Mute Connector Signals..................................................3-33
Vehicle Handsfree Kit Specifications ...........................................................3-34
iv
Accessories EN/LZB 119 2506 R1A
Introduction
This chapter describes the accessories used with the Ericsson AF738 and AF778
cellular telephones.
Repair of accessories consists of swapping suspected bad units with new and sending
the bad unit to the manufacturer for repair or replacement.
Refer to Table 3-1 for a list of available accessories.
Table 3-1. Accessories
Accessory Name Model Number
NiMH Battery (650 mA) NM-7065
Rapid Charger * SC-6000
Vehicle Power and Charge VP-6000
Desk Top Charger * MC-7000
Travel Charger TC-6000
Portable Handsfree Unit PO-6000
Vehicle Handsfree Solution (Semi-Duplex) HF-7300
Vehicle Handsfree Solution (Full-Duplex) HF-7600
Mobile Office Solution AC28
Mobile Data Cable Kit RPM 113 2057/55
* Note: This model has different part numbers depending on the electrical
requirements in the country used. Contact your Regional Service
Representative for more information.
3-1
EN/LZB 119 2506 R1A Accessories
Belt Clip Installation
Perform the procedures in this section to install the belt clip. See Figure 3-1.
1. Place the phone on a flat surface, battery side up.
2. Remove rubber plug from hole in back of phone.
3. Align the belt clip with the back of the phone.
4. Using a Phillips-head screwdriver, tighten the screw in to the back of the
phone.
5. Place the rubber plug back into the clip.
Figure 3-1. Belt Clip Installation
3-2
Accessories EN/LZB 119 2506 R1A
Battery Information
The Ericsson AF738 and AF778 cellular telephones use a 650 mA Nickel Metal
Hydride (NiMH) battery. Refer to Chapter 2 for charging information. See
Figure 3-2.
Figure 3-2. 650 mA Nickel Metal Hydride (NiMH) Battery
3-3
EN/LZB 119 2506 R1A Accessories
Battery Replacement
Perform the following procedure to remove and replace the battery:
1. Press in at the bottom of the battery and lift up. See Figure 3-3.
2. Insert the battery pack into the telephone and push until you hear a click. See
Figure 3-4.
a b c
Figure 3-3. Removing the Battery
a
b
c
Figure 3-4. Replacing the Battery
3-4
Accessories EN/LZB 119 2506 R1A
Connector Information
See Figure 3-5 and Table 3-2 for battery connector information.
1 3
- +
2
Figure 3-5. Battery Connector
Table 3-2. Battery Connector Signals
Pin Signal
1 Ground
2 No Used
3 + 4.8 Vdc
3-5
EN/LZB 119 2506 R1A Accessories
Battery Chargers
The phone features a microprocessor for control of battery charging through the
charger. The phone's LCD display indicates the status of the charging process. Refer to
Chapter 2 for charging information.
Refer to Table 3-3 for a description of the battery chargers used with the AF738 and
AF778 Cellular Phones.
Table 3-3. Battery Charger Features
Feature Battery Charger
Rapid-charges the battery. All chargers
Provides power to the telephone at the same
time as battery charging.
Automatic trickle charge after main charge is
complete.
Compact and lightweight Travel Charger
Detachable AC cord for various markets TC-6000
Detachable AC connector for various Desk Top Charger MC-
markets. 7000
Can discharge battery.
Can charge two batteries.
Accessory connection in back of unit.
Allows battery charging from the 12V or 24V Vehicle Power and
cigarette lighter outlet. Charge
VP-6000
Allows handsfree operation while charging. Vehicle HandsFree Kit
HF-7300
HF-7600
* Note: This model is only provided in the original telephone package. It is
not sold separately.
3-6
Accessories EN/LZB 119 2506 R1A
Rapid Charger
The rapid charger is only available in some telephone packages. It is not sold
separately.
Figure 3-6. Rapid Charger
Installation
To install the rapid charger on the phone, plug the connector, flat side up, into the
phone's system connector. Then plug the charger's main connector into an AC wall
socket. See Figure 3-7.
NOTE
The flat side of the charger connector is marked with a
lightning bolt.
S SE
YTM
C NET R
O N CO
C A GR
HR E
C NET R
O N CO
Figure 3-7. Installing the Standard Charger
3-7
EN/LZB 119 2506 R1A Accessories
To detach the charger from the phone, gently pull it up and out from the system
connector. See Figure 3-8.
SYSTEM
CONNECTOR
CHARGER
CONNECTOR
Figure 3-8. Detaching the Standard Charger
Connector and Signals
See Figure 3-9 and Table 3-4 for connector and signal information for the standard
charger.
1
2
Figure 3-9. Connector
Table 3-4. Connector Signals
Fig.
Ref. Signal Description
1 DGND Digital Ground
2 DCIO Supply to the phone
3-8
Accessories EN/LZB 119 2506 R1A
Rapid Charger Specifications
Dimensions 135 x 50 x 28 cm
Input AC120V 60Hz 10W
Output DC6V 250mA
Ambient Temperature + 5° to + 48° C
Charging Time: < 2 hrs.
Travel Charger
The Travel Charger shares the functionality and installation as the Rapid Charger.
Installation
To install the travel charger on the phone, plug the connector, flat side up, into the
outside socket at the phone's system connector. Then plug the charger's main
connector into any wall socket. See Figure 3-10.
TO
FROM SYSTEM
POWER CONNECTOR
SOURCE
Figure 3-10. Travel Charger
3-9
EN/LZB 119 2506 R1A Accessories
Connectors and Signals
See Figure 3-11 and Table 3-5 for connector and signal information for the travel
charger.
1
2
Figure 3-11. Travel Charger Connector
Table 3-5. Connector Signals
Fig.
Ref. Signal Description
1 DGND Digital Ground
2 DCIO Supply to the phone
Travel Charger Specifications
DC Cable Length 2 meters
Input 100 - 240 VAC 50-60 Hz
Output 7.6V 600mA
Ambient Temperature + 5 C to +48 C
Charging Time Approx. 2.5 hours
3-10
Accessories EN/LZB 119 2506 R1A
Desk Top Charger
See Figure 3-12. While in the front slot of the desktop charger, the phone may be
powered ON or OFF. The rear slot provides charging for an additional battery as
well as reconditioning. The reconditioning consists of draining the battery of its
charge, then recharging it to full capacity before illuminating the "green" LED.
SPARE
BATTERY
TO POWER
REAR SLOT LED
FRONT SLOT LED
Figure 3-12. Desk Top Charger
NOTE
The rear slot LED flashes when the battery in the rear slot is
discharging.
3-11
EN/LZB 119 2506 R1A Accessories
Installation
Perform the following procedure to install the DeskTop Charger. See Figure 3-13.
1. Insert the connector from the power cord into the back of the charger.
2. Plug the power cord into the wall socket.
3. Place the phone and/or the spare battery into the charger.
Figure 3-13. Desk Top Charger Installation
NOTE
The DeskTop Charger also supplies the connection for
portable hands-free use or data connections on the system
connector in the rear of the charger base.
3-12
Accessories EN/LZB 119 2506 R1A
Connectors and Signals
See Figure 3-14 and Table 3-6 for connector and signal information for the DeskTop
Charger.
1 2
Figure 3-14. Connector
Table 3-6. Connector Signals
Fig.
Ref. Signal Description
1 DGND Digital Ground
2 DCIO Supply to the phone
Desk Top Charger Specifications
Input 100 - 240 VAC 50-60 Hz
Output 7.6V 600mA
Ambient Temperature + 5 C to +48 C
Front Slot
Charging Time Approx. 2.5 hours
Rear Slot
Charging time Approx. 2.5 hours
Reconditioning time: N/A
3-13
EN/LZB 119 2506 R1A Accessories
Vehicle Power and Charge
The Vehicle Power and Charge allows the phone to be powered and charged through
a standard vehicle cigarette lighter.
Installation
Perform the following procedure to install the Vehicle Power and Charge. See Figure
3-15.
1. Insert the cigarette lighter adapter into the cigarette lighter of the vehicle.
2. Insert the charging connector into the back of the phone.
CIGARETTE
LIGHTER
ADAPTER
CHARGING
CONNECTOR
Figure 3-15. Vehicle Power and Charge Installation
Connectors and Signals
The vehicle power and charger uses the same connectors and signals as the Travel
Charger. See Figure 3-11 and Table 3-5.
Vehicle Power and Charge Specifications
Dimensions (AC/DC) 90 x 28 mm
Dimensions (Connector) 50 x 23 x 20 mm
Input 10.8 15.6 VDC
Cable Length 1.9 m
Ambient Temperature + 10° to 45° C
Charging time Approx. 1 hour
3-14
Accessories EN/LZB 119 2506 R1A
Portable Handsfree Unit
The portable handsfree unit allows the operator to use the phone while performing
other tasks. See Figure 3-16.
EARPIECE
PHONE
CONNECTOR
Figure 3-16. Portable Handsfree Unit
3-15
EN/LZB 119 2506 R1A Accessories
Installation
Perform the following procedure to install the portable handsfree unit. See
Figure 3-16.
1. Plug the connector from the portable handsfree unit into the system
connector on the phone.
2. Place the earphone in your ear.
3. Attach the phone to your belt or place it on a stable surface.
Connectors and Signals
See Figure 3-17 and Table 3-7.
2
1 3
4
1 2 34
FRONT SIDE
Figure 3-17. Connectors
Table 3-7. Connector Signals
Pin Signal Type Color
1 AFMS Speaker signal (+) Green
2 ATMS Microphone signal (+) Red
3 AGND Ground (mic/speaker (-)) Natural / clear
4 PORTHF Sense signal Connected to AGND
3-16
Accessories EN/LZB 119 2506 R1A
Portable Handsfree Unit Specifications
Earphone:
Input Power Rated 1mW
Impedance 150 ohm +/- 25%
Microphone:
Directivity Omnidirectional
Sensitivity -43.5 dB measured at supply voltage
3.3V (0 dB = 1V/Pa at 1kHz)
Impedance Min 50 ohm, max 2.2 kohm
measurement circuit
Signal-to-Noise ratio Min 45dB (1Pa 1kHz)
3-17
EN/LZB 119 2506 R1A Accessories
Vehicle Handsfree Kit
The Vehicle Handsfree Kit provides a convenient and easy way to use the phone in a
vehicle. The kit provides power to the phone from the vehicle battery, charges the
phone's battery, and includes a microphone and speaker for handsfree use. See
Figure 3-18.
The Vehicle Handsfree Kit includes:
· Handsfree Unit
· Handsfree Cradle
· Cradle Mounting Bracket
· Microphone
· External Speaker
· Power Cable
· Fuse Kit
· Wire Tie
The following are optional accessories for the Vehicle Handsfree Kit:
· Music mute cable
· Advanced music mute
· Vehicle data adapter
· External handset
· Goose-neck microphone
NOTE
These accessories may not be available in all areas or markets.
Figure 3-18. Vehicle Handsfree Kit
3-18
Accessories EN/LZB 119 2506 R1A
HandsFree Features
Refer to Table 3-8. The HF-7300 HandsFree Unit does not include a Digital Signal
Processor (DSP), as the Central Processing Unit (CPU) of the telephone handles the
handsfree switching. The HF-7600 HandsFree Unit contains a DSP. Refer to the
HF-7600 Functional Description.
The handsfree function is semi-duplex, which only permits one party to talk at a time
while the other party is switched off to avoid feedback. When the land side party is
talking, a "comfort noise" is added to simulate the background noise heard from the
mobile.
Table 3-8. Vehicle Handsfree Kit Features
Model Number Features
HF-7300 New amplifier and speaker for better sound performance
Uses phone's internal HF algorithm
Semi-duplex conversation
Comfort noise
Phone-controlled charging
HF-7600 New amplifier and speaker for better sound performance
Full duplex conversation
Adaptive echo cancellation
Noise reduction
Compatible with AMPS, DAMPS, GSM, 800, 900, 1900
Cradle
The cradle consists of two sub-units, the Cradle Attachment and the Holder. The
Cradle is equipped with a slide joint which is adjusted during the installation to a
suitable vertical and horizontal angle for easy reach of the phone. The snap/click-in
holder connects the phone to the HandsFree Unit. See Figure 3-21 to Figure 3-25.
3-19
EN/LZB 119 2506 R1A Accessories
Cradle Cables
One of the two Cradle Cables connects the system connector of the phone to the
HandsFree Unit.
Stick-On Microphone
The Stick-On Microphone included in the kit is a unidirectional microphone to be
mounted in a fixed position in the vehicle and connected to the HandsFree Unit.
External Speaker
Unless an optional Music Mute unit is used, the 4 External Speaker must be
connected to the speaker amplifier output of the HandsFree Unit.
NOTE
The ringer and some tones are emitted from the buzzer inside
the phone. Therefore, these tones will not be heard in the
external speaker. Refer to page 2-24.
HF-7600 Functional Description
See Figure 3-19. The HandsFree Unit includes the following electronic blocks:
· Microphone Amplifier
· Speaker Amplifier
· Modem/Handset Option
· Audio Switch Control
· External Audio Control
· Music Mute Control
· Power Supply
3-20
Accessories EN/LZB 119 2506 R1A
Microphone Amplifier
The Microphone Amplifier has two individual inputs for the two types of available
microphones:
· Stick-On microphone (standard)
· Goose-Neck microphone (optional)
The microphone signal passes through two amplifier stages, which results in a total
gain of 31dB and 21dB for the Stick-On and GooseNeck microphone, respectively.
Speaker Amplifier
The Audio from Mobile Station (AFMS) signal received from the phone is amplified
by a programmable gain amplifier and fed to a differential amplifier consisting of
four power transistors resulting in a total gain of 21dB. To protect the power
transistors and the speaker against high current, a feed back signal from the power
transistors to the programmable amp will allow only short peaks of high current to
get through but reduce continuous high current to approximately 1.2A corresponding
to just about 5W output power.
Modem/Handset Option
The Data Communication connector can be utilized for connection of two different
options:
· Analog PCMCIA modem
· External handset
When any of these devices is connected, the audio signal Audio to Mobile Station
(ATMS) is switched to this connector, while AFMS always is available.
NOTE
A Data Extension Unit is required for the connection between
the optional unit and the Data Communication connector.
Audio Switch Control
The Audio Multiplexer Control is used to switch the audio paths between the external
microphone and the modem/handset connector. Control signals such as external
audio control (EXTAUD) and inverted mute (MUTEINV) are derived from logical
gates controlled by the signals portable handsfree (PORTHF), data/voice (DV), and
hook sense (HOOKSNS).
External Audio Control
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EN/LZB 119 2506 R1A Accessories
The EXTAUD signal informs the phone when an accessory which is using the two
external audio signals AFMS and ATMS has been connected to the HandsFree Unit
Music Mute Control
An optional Music Mute unit can be supplied with +12V from the vehicle battery.
The Music Mute function is controlled from the phone by the MUTE signal, which is
inverted by an open collector transistor before becoming available at two of the
connectors.
Power Supply
The Handsfree Unit is able to deliver power to the phone for operation and battery
charging by regulating the +12V of the vehicle battery to a constant current supply of
maximum 850mA and less than 1mA during stand-by.
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Accessories EN/LZB 119 2506 R1A
Phone Operation
The power consumption of the phone in different situations, e.g. in stand-by or in
transmission, is entirely controlled by the phone itself, as these power levels are
programmed and stored in the phone.
Battery Charger
As the phone battery at all times is provided with current from the HandsFree Unit,
the phone itself controls the charging of the battery, including trickle charging. For
more information regarding the battery charging algorithms of the telephone, refer to
Chapter 2.
FLASH PWR OP AMP DCIO
EPROM IC303 IC102
MEMORY
IC202
DSP CPU
IC301 IC201
MIC SPKR MMUTE DATA CRADLE PWR
J4 J7 J5 J6 J1 J2
ATMS AFMS
TO PHONE SYSTEM
CONNECTOR
Figure 3-19. Vehicle Handsfree Kit Block Diagram
3-23
EN/LZB 119 2506 R1A Accessories
Optional Accessories
Music Mute
An optional Music Mute unit can be connected to the HandsFree Unit and will direct
the amplified received audio signal to the car stereo speakers during the handsfree
conversation. If the car stereo is equipped with a specific "mute" input, the optional
Music Mute Cable connected directly between this input and the HandsFree Unit will
mute the car stereo during the handsfree conversation.
Maximum current load at Music Mute output is 200mA.
Goose-Neck Microphone
A GooseNeck Microphone allows a more flexible microphone position for improved
sound quality including reduction of transmitted noise.
Data Extension
Data communication using handsfree mode is made possible by connecting a Data
Extension Unit between a modem and the Data Communication Connector.
External Handset
An External Handset will give the user the possibility to switch from handsfree to
handheld operation without disconnecting the external antenna and the power source.
A Data Extension Unit is required for the connection between the External Handset
and the Data Communication Connector.
The vehicle handsfree kit includes an electronics box (which contains electronics for
speaker and microphone amplifiers, power supply and charging), a phone cradle, and
an external speaker and microphone.
All external connectors are on one side of the electronics box to facilitate easy
installation of all cables. An external antenna adapter cable is available to enhance
reception.
In the HF-7300, there is no handsfree processor in the holder. The microprocessor in
the telephone controls all the handsfree switching.
Speaker Path
A 3W audio amplifier feeds the speaker. The external 5W speaker has a 4-ohm
impedance. The volume is adjusted from the telephone.
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Accessories EN/LZB 119 2506 R1A
Installation
The Vehicle Handsfree Kit has the connections shown in Figure 3-20. Refer to
Table 3-9 for connection information.
J4 J7
J5
J6 J1 J2
Figure 3-20. Vehicle Handsfree Kit Connectors
Table 3-9. Vehicle Handsfree Kit Connections
Connector Connects To
J1 Cradle
J2 Power
J4 Microphone
J5 Music Mute
J6 Data Communications
J7 Speaker
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EN/LZB 119 2506 R1A Accessories
Perform the following procedure to install the Vehicle Handsfree Kit. See Figure 3-
21 through Figure 3-25 throughout this procedure.
1. Mount the cradle mount onto a flat surface in the vehicle, within reach of
the user. See Figure 3-22, position 1.
2. Insert the supplied screw through the slot on the cradle. See
Figure 3-22, position 2.
3. Slide the cradle onto the mount. See Figure 3-23.
4. Tighten the screw in the cradle slot to secure the cradle to the cradle
mount, and place plastic shied over the screw. See Figure 3-23.
5. Connect the cradle to the Vehicle HandsFree Unit using the cradle
connector cable. See Figure 3-24.
Figure 3-21. Cradle Mount Installation
Figure 3-22. Cradle Installation
3-26
Accessories EN/LZB 119 2506 R1A
Figure 3-23. Securing the Cradle to the Cradle Mount
Figure 3-24. Connecting the Cradle to the Vehicle Handsfree
Unit
3-27
EN/LZB 119 2506 R1A Accessories
6. Mount the speaker in the vehicle. See Figure 3-25.
NOTE
The speaker must be mounted at least 50 cm away from the
phone.
7. Mount the microphone in the vehicle. See Figure 3-25.
NOTE
The microphone must be mounted as close to the user's mouth
as possible.
8. Connect the Vehicle Handsfree Kit to the power source. See Figure 3-25.
NOTE
Power must be taken from the vehicle's battery terminal
directly.
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Accessories EN/LZB 119 2506 R1A
+12V
J2
4.0M
3A
J1
J7
J6
J4
J5
2.0m
3.9m
Min 50 cm
Figure 3-25. Vehicle Handsfree Installation
* Refer to Table 3-9 for connection information.
3-29
EN/LZB 119 2506 R1A Accessories
Connector and Signals
Cradle Connector
1
12
Figure 3-26. Cradle Connector
Table 3-10. Cradle Connector Signals
Pin Signal Description
1 DGND Digital Ground
2 DCIO Power Supply to/from telephone
3 AGND Analog Ground
4 ATMS Audio to mobile station
5 HOOKSNS Cradle hood control input:
0 or open = on hook
1 (VDD) off hook
6 AFMS Audio from mobile station
7 MUTE Mute signal control input:
0 = standby
1 = Call in progress
8 EXTAUD External audio control signal:
0 = PHF connected
1 = no accessory connected
9 PORTHF Portable handsfree control signal:
0 = PHF connected
1 = No accessory connected
10 VDD Logic signal reference voltage signal
11 DFMS Data from mobile station
12 DTMS Data to mobile station
* Note: This pinout is the J1 end of the connecting cable from the cradle to
the HandsFree Unit. Refer to Chapter 2 for pinout information on the cradle-
to-phone connection.
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Accessories EN/LZB 119 2506 R1A
Power Connector
4 2
3 1
Figure 3-27. Power Connector
Table 3-11. Power Connector Signals
Pin Signal
1 GND
2 +12 VDC
3 MUTE
4 Not Used
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EN/LZB 119 2506 R1A Accessories
Modular Connector
10
8
7
6
5
4
3
2
1
Figure 3-28. Modular Connector
Table 3-12. Modular Connector Signals
Pin Signal
1 RTS
2 VSUPPLY
3 AGND
4 RX
5 DV
6 TX
7 DTR
8 DTMS
9 DFMS
10 DGND
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Accessories EN/LZB 119 2506 R1A
Music Mute Connector
5 4 3 2 1
Figure 3-29. Music Mute Connector
Table 3-13. Music Mute Connector Signals
Pin Signal
1 Loudspeaker Common
2 Digital Ground/DC Return
3 Loudspeaker Signal
4 Music Mute
5 +12 VDC Output
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EN/LZB 119 2506 R1A Accessories
Vehicle Handsfree Kit Specifications
Type No: 502 0019-BV
Dimensions: 135 x 100 x 28 mm
Input Voltage: 10.8 to 15.6 VDC
Ambient Temperature - Operating: -25 o C to +60 o C
Ambient Temperature - Charging: +10 o C to +35 o C
Weight: 105g
Height: 95mm
Depth (incl. cradle attachment): 54mm
Width: 60mm
3-34
Accessories
Contents
Rapid Charger _____________________________________ 7
Introduction ______________________________________________ 7
Main Features ____________________________________________ 7
Versions ____________________________________________________ 8
Connectors _______________________________________________ 8
Secondary DC-cord ___________________________________________ 8
Specifications _____________________________________________ 8
Travel Charger ___________________________________ 9
Introduction ______________________________________________ 9
Main Features ____________________________________________ 9
Indicators __________________________________________________ 10
Output Characteristics ____________________________________ 10
Connector _______________________________________________ 11
Secondary DC-cord __________________________________________ 11
Specifications ____________________________________________ 11
Vehicle Power/Charger _____________________________ 13
Introduction _____________________________________________ 13
Main Features ___________________________________________ 13
Indicators __________________________________________________ 14
Output Characteristics ____________________________________ 14
Connectors ______________________________________________ 15
Cigarette Lighter Adaptor______________________________________ 15
Power Plug _________________________________________________ 15
Specifications ____________________________________________ 15
Continued on next page
3
Accessories
DeskTop Charger MC7000 __________________________ 17
Introduction______________________________________________17
Electronics _______________________________________________18
Central Processing Unit _______________________________________ 18
Supply Current Monitor _______________________________________ 19
Charge Switches _____________________________________________ 19
Front Slot Switch __________________________________________ 19
Rear Slot Switch __________________________________________ 19
Voltage Monitors ____________________________________________ 19
Front Slot Monitor _________________________________________ 19
Rear Slot Monitor _________________________________________ 19
Phone On/Off Status __________________________________________ 20
Discharger __________________________________________________ 20
LED Indicators ______________________________________________ 20
Front LEDs ______________________________________________ 20
Rear LEDs _______________________________________________ 20
Temperature Guard ___________________________________________ 20
Power Distribution for Phone Operation ______________________20
Battery Charging _________________________________________20
Front Slot Charger____________________________________________ 21
Main Charging ____________________________________________ 21
Trickle Charging __________________________________________ 21
Rear Slot Charger ____________________________________________ 21
Main Charging ____________________________________________ 21
Trickle Charging __________________________________________ 21
Discharging ______________________________________________ 21
Error Detection ______________________________________________ 22
LED Indicators ______________________________________________ 22
Front Indicator - Phone Slot__________________________________ 22