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CMD-J5/J16
SERVICE MANUAL
Ver 1.3 2001.08 E Model
______________________________________________________________________________________________________________
SPECIFICATIONS
Signalling format Dual-Band
Frequency range E-GSM 900 MHz, Transmit: 880 ~ 915 MHz
Receive: 925 ~ 960 MHz
DCS 1800 MHz, Transmit: 1710 ~ 1785 MHz
Receive: 1805 ~ 1880 MHz
GSM power class Class 4 (2W)
DCS power class Class 1 (1W)
SIM chip 3V and 5V Pluggable mini SIM card
Display High resolution full graphics display
4 Grey-scale type
Resolution: 96 x 92 pixels
9 lines, proportional font
Channel spacing 200 kHz
Number of channels E-GSM: 174
DCS : 374
Frequency stability Transmit frequency drift (synchronized)
< ± 0,1 p.p.m
RF output power GSM: 2W
DCS : 1W
Battery life Standby : 30h -150h standard battery
Talk time : 2h15 - 6h standard battery
Dimensions 123 mm x 42 mm x 15 mm
Weight 85 g
3
Volume 81 cm
PORTABLE DIGITAL CELLULAR TELEPHONE
WITH ACCESSORIES
Power requirements 3.9 V (nominal)
Operating temperature -10°C to +55°C
Accessories operating temperature ± 0°C to +45°C
Connectors External RF connector
Bottom Connector (12-pin flat I/O connector)
Mini plug head set jack
Supplied accessories AC Adapter QN-3TC
Battery (std.) QN-J5BPS
AC cable
Optional accessories Headset QN-3HS
Battery (std.) QN-J5BPS
NOTE
This device contains electrostatically sensitive components. Damage can occur to these components
if the appropriate handling is not adhered to.
ESD Handling precautions:
A working area in which Digital Cellular Telephones may be safely handled without undue risk of
damage from electrostatic discharge must be available.
The area must be equipped as follows:
All working surfaces must have a dissipative bench mat, safe for use with live equipment,
connected via 1.2M resistor to a common ground point.
A quick release skin contact device with a flexible cord, which has a built-in safety resistor of
a range between 5.2K and 1.2M shall be used. The flexible cord must be attached to a
dissipative earth point.
All containers and storage must be of the conductive type.
2
TABLE OF CONTENTS
SECTION 1
Specifications ............................................................... (see Cover sheet)
SECTION 2
General Descriptions
2.1 Multi Band ................................................................ 04
2.2 Radio Frequency Power Levels ..................................... 05
2.3 Speech Codec .......................................................... 05
2.4 Languages ................................................................ 05
2.5 Battery Charging ........................................................ 06
2.6 Battery Safety ............................................................06
2.7 Battery Capacity ......................................................... 06
2.8 Accessory Interface ..................................................... 07
SECTION 3
Operating Instructions
3.1 The Basic Features of the CMD-J16 ................................08
3.2 Security Codes ...........................................................09
3.3 Icon Glossary ............................................................ 10
3.4 Menu Overview .......................................................... 10
SECTION 4
Disassembling/Testing
4.1 Disassembly .............................................................. 11-12
4.2 Interface to GSM-Tester ...............................................13
4.3 Jigs and Tools............................................................ 14
SECTION 5
Programming Instructions
5.1 Requirement ..............................................................15
5.2 Hardware Set-up ....................................................... 15
5.3 Software Set-up ....................................................... 15
5.3.1 Download Software to Mobile ................................. 15-16
5.3.2 Save Personal Data in Mobile ................................. 16
5.3.3 Reset of Personal Data .......................................... 16
5.3.4 Reset of Security Code Lock ....................................16
SECTION 6
Diagrams
6.1 Block Diagram Radio Frequency (RF) ...........................17
6.1.1 General RF Indications ........................................... 17
6.2 Block Diagram Baseband .......................................... 18
6.2 1 General Baseband Indications ................................. 18-19
6.3 Block Diagram Audio ................................................ 19
6.3.1 General Audio Indications ....................................... 19
SECTION 7
Spare Parts and Accessories List ........................................ 20
3
SECTION 2
GENERAL DESCRIPTIONS
2.1 Multi-band :
CMD-J16 support E-GSM 900 and DCS 1800 multi-band functionality.
For the use in Europe and in other countries worldwide, ETSI has specified GSM standards into two frequency
bands. That is the 900-MHz and 1800-MHz band and is usually referred to as GSM900 and GSM1800 (formerly
DCS1800).
While the 900-MHz band has 124 channels (extended version: 175), the 1800-MHz band with its 375 channels
provides a three-times higher capacity. Not only as a result of this large range of channels but also due to the low
transmission power and the transmission distance, GSM1800 supports a higher quantity of RF-channels.
The Dual band technology enables a network operator with spectrum at both 900MHz and 1800MHz to support the
seamless use of dual band handsets across both frequencies. By supporting seamless handovers between
900MHz and 1800MHz, Dual band networks can provide major benefits in terms of capacity enhancement and
revenue optimisation through the introduction of new services.
The CMD-J16 is a phase II, GSM 900 class 4, DCS 1800 class 1 mobile phone.
The nominal maximum output power for GSM 900 is 2W, for DCS 1800 1W.
It supports the extra functionality required for multi-band mobile stations: Inter-band/"seamless" hand-over,
channel assignment, cell selection and re-selection, all between both bands within a Public Land Mobile Network.
The manual and automatic PLMN selection in both bands is given.
The user does not need any special action to use the multi-band functionality of the phone.
Users are able to manually roam between PLMN's operating in GSM 900 and DCS 1800 bands.
E-GSM
With the further development of the GSM standard, an additional range of frequencies has been made available to
the "Global system for mobile communications". For each of the two duplex frequency ranges, one for the forward
direction and one for the reverse direction, additional 10 MHz have been added to the bottom end of the bands,
extending the frequency range to 50 further channels.
The mobile station transmits in the 880- to 915 MHz range, and the base station transmits in the 925- to 960 MHz
range. A duplex spacing of 45 MHz is used, the base station always transmits on the high side of the duplex
frequency pair.
The numbering for these additional channels is from 974 to 1023. This is done to avoid assigning one channel
number twice within the same standard.
Compared to the primary GSM system, Channel number 0 is used in the extended GSM system, since it does not
make sense to reserve it at a guard band within the E-GSM bands. Now, the lowest channel, number 974 (880.0
MHz), serves as the guard band between GSM and other services on lower frequencies.
DCS 1800
DCS-1800 uses the frequency ranges of 1710 to 1785 MHz in the uplink direction, and 1805 to 1880 MHz in the
downlink direction.
From these figures it follows that the duplex spacing is 95 MHz with 374 channels with bandwidths of 200 kHz
each.
The channels are numbered from 512 to 885 in order to distinguish them from the channels in the primary and
extended GSM frequency bands.
4
2.2 Radio Frequency Power Levels:
Between the DCS 1800 and both GSM Systems are differences regarding the power level. DCS 1800 basically
needs lower power levels. If the performance of a MS for GSM system was certified of 2W (Power Class 4), then in
the DCS-1800 system it is only 1W (Power Class 1). There are also reduced BTS power levels due to microcell
applications, which means instead of the 40W (Power Class 4) in the GSM system DCS 1800 needs only 20W
(Power Class 1).
Preferences GSM 900 E-GSM DCS 1800
Frequency band MHz MHz MHz
uplink: 890 - 915 880 - 915 1710 -1785
downlink: 935 - 960 925 - 960 1805 - 1880
Radio Channels 124 174 374
max. BS-Power 40 W (46 dBm) 20W (43 dBm)
max. MS-Power 2 W (33 dBm) 1W (30 dBm)
2.3 Speech Codec
The CMD-J16 supports the following speech codecs.
· Full Rate (FR) Codec
· Half Rate (HR) Codec
· Enhanced Full Rate (EFR) Codec
The speech codec forms the human voice into a digital signal, which is sent in the GSM network.
The GSM system currently has three different speech codec standards.
At first, the Full Rate (FR) Codec was introduced. With new requirements concerning speech quality and
availability of radio channel resources two further standards were introduced, the Half Rate (HR) Codec and the
Enhanced Full Rate (EFR) Codec. The Half Rate (HR) Codec requires only half the channel capacity of a Full Rate
(FR) Channel. The Enhanced Full Rate (EFR) Codec requires the same radio channel resources as a Full Rate
(FR) Codec but offers Fixed Line quality with superior vocal clarity.
2.4 Languages
The CMD-J16 supports the following languages:
Taiwan:
· English · Chinese Simplified · Chinese Traditional
(for Taiwan)
Hong Kong:
· English · Chinese Simplified · Chinese Traditional
The CMD-J5 supports the following languages:
· Bulgarian · German · Romanian
· Croatian · Greek · Russian
· Czech · Hungarian · Slovak
· Danish · Italian · Slovene
· Dutch · Norwegian · Spanish
· English · Polish · Swedish
· Finnish · Portuguese · Turkish
· French
5
2.5 Battery Charging
There is no charging circuitry in the battery pack. The CMD-J5/J16 has complete charger function internally.
The telephone can be charged only with the battery connected the phone. This situation can be sub-divided into
two situations: the phone is on or off. It can be charged with the AC Adapter, Travel Charger or Cigar Lighter
Charger.
The battery symbol is used to indicate the charging, and to indicate when the battery is fully charged. This is done
using the following sequence of icons:
The uncharged segments of the battery are moving in a right to left manner until the charging stops. The
sequences for each charging level is repeated until the battery is charged to that level.
When the charging sequence is finished the flashing of the battery level sign stops.
The phone shows the full-battery icon.
2.6 Battery Safety
The battery pack contains a single Li-ion cell, a safety circuitry and, in addition, a microprocessor unit which
manages RTC information by reading out the binary counter value in the microprocessor. The charging circuitry
and the safety circuitry together guarantee a double fail-safe battery pack. This means that each component can
be either short or open and still all the safety requirements will not be violated.
The safety concept protects against:
Over voltage: The charging is stopped when Battery Voltage (Vbat) reaches 4.25V- 4.3V. The charging resumes
when Vbat falls below (4.025V - 4.125V).
Under voltage: When the cell voltage drops below 2.242V 2.358V the cell is disconnected for discharging.
Charging is still possible.
Current fuse: Finally, if all protection functions are out of order due to abnormal condition, the current fuse protects
the device from explosion and fire with melting. The fuse melts 10A during 1 second.
2.7 Battery Capacity:
Standard Battery 640mAh typical Li-ion QN-J5BPS
Extended Battery 920mAh typical Li-ion QN-J5BPE
The phone can be charged even during making phone calls.
However, the shortest charging time will be reached when the phone is switched off.
6
2.8 Accessory Interface
The table explains what kind of pins the phone supplies to the different accessories.
Pins GND Charge GEN Power RX TX ACC RS232 RS232 Audio Audio AGND
I/O OUT (IN) (OUT) ID RTS CTS Out IN
1 2 3 4 5 6 7 8 9 10 11 12
Charger
Connector layout
Connector view from base of phone
12 1
The connector comprises the following pins:
Audio
Audio In, Audio Out and Audio GND:
Audio IN:
Is a single ended input with a maximum sensitivity of 365 mVrms.
Audio OUT:
The single ended output delivers 0.8Vpp into a 1k load.
These two signals are referred to as AGND.
RS232 Interface
5-pin interface: RX, TX, RTS(RFR), CTS and Gen I/O(DTR or DCD):
This is the communication interface to the Data cable "QN-3RS/USB".
Pin 3 is connected to a general IO pin on the baseband digital chip. The functionality can be assigned on an
accessory by accessory basis to be input, output or interrupt.
Charge
The Charge pin represents the positive contact for the charging funtionality.
GND
The Ground pin represents the digital interface and charger return current.
ID
This pin shows the presence of an accessory and is also an analog ID for the accessory. Accessories which
provide charger functionality only do not support this pin and their presence is detected with a valid charger
voltage.
Power Out
Power-out has a different functionality with different accessories.
In the car-kit environment the ext. Vbat indicates that a phone call is accepted/in progress. This information is used
by the car-kit to power up the audio section of the car-kit, mute the car stereo and keep the car-kit powered up
even when the ignition is switched off.
Due to the fact that the ID of the accessory is detected first, the ACC power is not current limited (protected).
7
SECTION 3
OPERATING INSTRUCTIONS
3.1 The Basic Features of the CMD-J5/J16
· Parts and Controls
This section provides a brief guide to the operation and facilities available on the CMD-J5/J16. Refer to the Operating
Manual for full operational information.
1 Antenna
10 External connector
2 Display
(Charging and Accessories)
3 On/Off Key, Call End Key, Clear Key
11 Battery
4 Voice Mail Key
12 Loudspeaker
5 Microphone
13 External Antenna Connector
6 Keypad (alphanumeric keys)
14 Headset Connector
7 Centre Key
15 Jog Dial
8 Send Key
16 Side Switch
9 Ear piece
· The Jog Dial
The Jog Dial provides fast and easy menu navigation with only one hand.
Operation Function Function
Rotate Scrolls through menu options.
Opens Phonebook in Standby Mode
Press Opens Menu in Standby Mode.
(click) Selects an option (highlighted) in the display.
Press and Hold Dials the phone number selected.
8
· The Centre Key
Press the Centre Key in standby mode to access the Main Menu.
During a call, press the Centre Key to access the Call Menu.
In Sub-menus, access/exit the help function by pressing the Centre Key
· The Voicemail Key
Press and hold to access your Voicemail
· The Side Switch
In standby mode, slide the switch up to activate/deactivate the manner modes.
Afterwards, it is possible to switch among the manner mode functions. All manner mode icons appear
in the display; rotate the Jog Dial to select one:
Silent Mode :turns the ringer and all tones to silent mode.
Ringer to Single beep :ringer is restricted to a discrete single beep.
Vibra Alert :Vibra Alert without the ringer.
For your convenience, sliding the side switch up in standby mode will toggle between the two last
settings.
In standby mode, slide the switch down to lock/unlock your keypad (including Jog Dial). It is still
possible to make emergency calls (112) as well as answer/reject an incoming call (by pressing /
) when the keypad is locked.
During a call, turn the loudspeaker on by sliding the switch up once. Turn the loudspeaker off by
sliding the switch up again.
During an incoming call, stop the ringer by sliding the side switch up.
During a game, stop/start the backround sound by sliding the side switch up.
3.2 Security Codes
NUMBER OF
CODE TYPE DESCRIPTION
DIGITS
PIN Controls SIM security. Supplied by the
4 to 8
Personal Identification Number Service Provider !
Controls memory security. Supplied by the
PIN 2 4 to 8
Service Provider !
Used to unblock PIN and PIN 2.
A PIN or PIN 2 will become blocked if the wrong
PIN / PIN 2 PIN or PIN 2 is entered three times.
Personal Unblocking Key When the blocked PIN or PIN 2 is unblocked, a
8
(PUK / PUK 2) new PIN or PIN 2 must be entered. If the wrong
PUK or PUK 2 is entered 10 times, the SIM card
will be unusable.
Supplied by the Service Provider !
Controls the call bar function. If the wrong
password is entered three times, this
Bearing Password 4
service will be revoked.
Supplied by the Service Provider !
Controls the access to wap-and e-mail settings.
Security Code 4 to 8 The default Security Code is: 0000
Refer to Section 5 "Programming Instructions"
9
3.3 Icon Glossary
ICON Explanation ICON Explanation
Network not available Missed calls
Network signal strength (strong) Incoming call barring
Battery strength Outgoing call barring
SMS (Envelope Icon) Incoming + Outgoing call barring
Voicemail Conditional Divert
Keypad locked Unconditional Divert
Alarm Active call
Silent Mode Call hold
Vibra Alert Mute Microphone
Single Beep Headset connected
Ringer off Handsfree Kit connected
Conversation Privacy Loudspeaker on
(ciphering) not supported
3.4 Menu Overview
Press the Jog Dial from standby mode to acess the Main menu:
CMD-J5
(MALAYSIA) only
Read message
Create message
Settings
Local area info Browser
Favourites
Settings
Ringer
Set Sound
Calendar
Preferences
Security
Call data
Call settings
If not reachable Clock
If no reply Calculator
If busy Games
All calls
All fax
All data
Cancel all
Phonebook menu Incomming Calls
Voicemail Outgoing Calls
Search Missed Calls
Delete All
10
SECTION 4
DISASSEMBLING / TESTING
4.1 Disassembly
IMPORTANT NOTE :
The IMEI number is the electronic identification of the hardware, which is stored electronically. There should be no
discrepancy between the number on the sticker and the number within the set memory allowed.
In case of replacing the lower cabinet it is to make sure that the IMEI Sticker mounted on the lower case (visible
from the battery compartment) will be replaced to the new housing part as well.
Follow the disassembly procedure in the numerical order given.
CABINET UPPER
MAIN BOARD ASS'Y
11
LCD
IMPORTANT:
Do not detach the shield
case from the main board
CABINET LOWER
Re-assembly procedure :
To re-assemble the unit, apply the reverse order of the above mention disassembly procedure.
12
4.2 Interface to GSM-Tester
Test Set Up for CMD-J5/J16 Level 1 Testing
CMD- J 5/J 16
+
Battery Pack
+
Test SIM Card
Service Test Connector
RF output :
SMA jack*
STC-03 Part No.
3-224-391-01
RF input Connector *
GSM TESTER
This unit acts as a base station providing
all the necessary GSM signalling
requirements and provides GSM signal
measuring facilities as well.
* Use special RF-Adapter for connection of STC-03 to your GSM Tester !
13
Level Test Procedure with GSM TESTER recommendation:
· Simulate GSM call processing to check the functionality of transmitting and receiving audio
signals of loudspeaker and microphone.
· Basic GSM transmission & reception parameter testing to ensure that handset's performance
compiles with standard GSM specification.
4.3 Jigs & Tools
Description Part No Remark
DATA TRANSFER CABLE DTC-04 1-757-348-11 Necessary For Software Update
HOOK RELEASE JIG 3-043-180-01 For Housing Opening
For Connection To GSM Measure
SERVICE TEST CONNECTOR STC-03 3-224-391-01
Equipment
HOOK RELEASE JIG
DATA TRANSFER CABLE SERVICE TEST CONNECTOR
14
Section 5
PROGRAMMING INSTRUCTIONS
5.1 Requirement
· PC (486 type or higher) with Microsoft "Windows" Operating System
· One COM-port free for usage
· The Data Transfer Cable (p/n 1-757-348-11)
PREPARATION FOR SOFTWARE UPDATE
DATA
TRANSFER
CABLE
5.2 Hardware set-up
· Copy all the files to the PC (define own directory).
· Connect the Data Transfer Jig to the PC COM-port (COM 1 or COM 2) and the CMD-J5/J16 external
connector.
· Attach battery pack to CMD-J5/J16; the CMD-J5/J16 is powered up from the battery pack.
· The initial settings of the flash.exe program may not correspond with the normally correct settings. It is highly
advisable to check the settings first (see 5.3 Software set-up).
5.3 Software set-up
5.3.1 Download Software to Mobile (Software Update)
· Start the program flash.exe by double-clicking on its icon in the Windows Explorer. J5 Flash.exe
15
· Select "file"/"Settings..." and check if the settings for the "Com Port"and "Speed" are correct.
- The FlashLoader automatically detects all available Com ports on the PC.
(COM 1 or COM 2)
- Baud rates up to 812500bps will be supported, but standard PCs, unless
it is correctly customised (i.e. with a Fast Serial Board), will not support
Baud rates > 115200bps.
- The default values are COM1 115200
· Click on the "Load" button and select an SRE file for downloading.
- The CMD-J5/J16 software is located in the J5.SRE file.
- Any other SRE file is either only needed for the program itself, or can be a personal data file.
Note: If a "flash.sre" file appears, please mind that this is application software (do not use / modify)
- Flash erase area is automatically calculated with the contents of the file.
· Switch on the CMD-J5/J16.
· Now the program runs automatically.
5.3.2 Save Personal Data in Mobile (Get Data / Write Data)
The set-up and all requirements for this data transfer are the same as for the software update.
· Check if the settings for the "Com Port" and "Speed" are correct.
· Click on "Get Data".
· Switch on the CMD-J5/J16.
· When the read data is downloaded either reload it in another mobile (reconnect a new mobile and click on
"Write Data") or save it on the disc using File/Save option.
5.3.3 Reset of Personal Data (Erase Data)
The set-up and all requirements for this data transfer are the same as for the software update.
· Check if the settings for the "Com Port" and Speed" are correct.
· Click on "Erase Data".
· Switch on the CMD-J5/J16.
· All individual settings (such as Phonebook entries and WAP settings etc.) will be deleted.
5.3.4 Reset of Security Code Lock (Clear Lock)
The set-up and all requirements for this data transfer are the same as for the software update.
· Check if the settings for the "Com Port" and Speed" are correct.
· Click on "Clear Lock".
· Switch on the CMD-J5/J16.
· The individual Security Code will be reset to the default setting: 0000 !
For any of the above stated functions, follow the instructions written in the status bar
(the first one from the top).
Follow up the progress of the up/download process by checking the Progress bar (the
second one from the top).
16
SECTION 6
DIAGRAMS
6.1 Block Diagram - Radio Frequency (RF)
VCC_RF LDO
RF_EN
Rx frontend filter Rx interstage filter VCC_SYNTH LDO
DCS LNA 1st Rx mixer IQ Demodulator
IF
RF IF SAW Filter RXIP
440 MHz IF Amplifier (PGC) I
Ceramic Filter SAW Filter RXIN
LO
1805..1880 MHz 1805..1880 MHz 90° BB amplifier and RXQP
0
low pass filter
° RXQN
GSM LNA
Q
RF IF
RX: AFC
GSM 1365..1400 MHz VCTCXO
SAW Filter SAW Filter DCS 1365..1440 MHz
LO
925..960 MHz 925..960 MHz 13 MHz CLK13M
440 MHz
LO1 (RF) PLL:
RX - RX -
Antenna 1 LO1 (RF) PLL
GSM 1365..1400 MHz N
2 DCS 1365..1440 MHz
N+1 200 kHz step
LNA Bias
control Transceiver - TX - Total VCO Range:
1
880 MHz
GSM 1370..1440 MHz 1365 to 1460 MHz
Antenna DCS 1385..1460 MHz
N
Switch
1
LO1 Loop
Filter
VCO
TX:
RF Connector with GSM 1370..1440 MHz
DCS 1385..1460 MHz
PLL
mechanical switch
TX
LO2 (IF) PLL
RX 880 MHz
N
TX 975 MHz
Detector and
2 1
APC loop Level control DCS
1 GSM LO2 Loop
Filter
VCO M
5 LO2 (IF) PLL
975 MHz
TX: 1 1 1 MHz step
Total VCO Range:
GSM Pin diode Tx GSM VCO GSM 685..720 MHz 880 to 975 MHz
880..915 MHz switch 880..915 MHz DCS 1385..1460 MHz
3/5
GSM :5
1 DCS :3
Directional PA LP Filter
coupler + LPF SERCK
Down LP Filter
Converter SERDA
DCS1800 Pin diode Tx DCS VCO SERLE1
1710..1785 MHz switch 1710..1785 MHz SERLE2
Loop Sum loop
Filter
I
Directional PA LP Filter
90° TXIP
coupler
Phase 0
TXIN
detector °
TXQP
GSM 195 MHz Q
TXQN
DCS 325 MHz
DET_EN
IC 1 Digital
signals
DET_TX TX_SW_EN GSM_TX_EN GSM_VCO_EN RF_IC_EN
TXP_OFS_EN APC_DOWN DCS_TX_EN DCS_VCO_EN
IC 2 Analog
signals AUX_DAC TXP
6.1.1 General RF Indications
The radio part of the CMD-J5/J16 handles the air interface according to the GSM specifications.
It is the main contributor for the dualband functionality for E-GSM 900 and DCS 1800.
Receiver
The receiver consists of two separated RF paths for GSM and DCS 1800 each.
On the transmission line between the antenna switch of the RF part and the antenna there is the RF connector
including a mechanical switch to connect an external antenna for accessory use. The integrated mechanical
switch switches between the helix antenna and the external RF antenna connection. As long as a plug is
connected the antenna is deactivated and all RF signals go across the connector.
The GMSK (Gaussian-filtered minimum shift keying) modulated 900 MHz / 1800 MHz signal received by the
antenna is filtered, gained and downconverted into the baseband via an intermediate frequency of 440 MHz.
The 440 MHz filter is followed by a tuneable amplifier and IQ demodulator. Behind the demodulator there are
additional base band amplifiers and low pass filters.
The In Phase (I) and Quadrature (Q) signal outputs are balanced each.
A 13 MHz voltage-controlled-temperature-compensated crystal oscillator (VCTCXO) generates the clock
frequency for the PLL and baseband part.
Transmitter
In the transmit direction the digitally GMSK-modulated baseband signal is upconverted to the transmit frequency
in the 900 MHz / 1800 MHz band via an intermediate frequency of 195 MHz (GSM) / 325 MHz (DCS 1800) by
means of an IQ modulator and the subsequenting sum loop.
All RF and IQ signals are balanced signals in order to suppress crosstalk effects. According to GSM
recommendations transmitter and receiver are never active at the same time.
(TDMA system "Time Division Multiple Access").
17
6.2 Block Diagram - Baseband
KEY-LED
MCP-I/F BL-I/F
FLASH/SRAM LCD-LED
KEY-I/F
LCD-I/F
KEY-MATRIX
FLEX-BOARD
LCD
SLIDE-SW
(REC/LOCK
KEYBOARD or Manner)
IC 1
I/O CONNECTOR
JOG DIAL
1 DGND
2 CHG JOG
3 GEN I/O MODEM-I/F JOG-I/F
Multiactor
4 POWER OUT
5 RX (IN) TIME
PROCCESSING RINGER *Ringer
6 TX (OUT)
AUDIO *Vibrator
UNIT
AMP *Loud-
7 ACC ID
Speaker
8 RTS 32kHz
9 CTS RTC HEADSET
CLK- RF-I/F AUDIO &
CTRL HEADPHONE-JACK
10 AUDIO OUT REMOTE
11 AUDIO IN SIM
12 AGND Interface
IC 2
I/F MIC
Battery IC 1
Connector I/F
Power / CHG
Management
AUDIO EAR
LI-ION AMP RECEIVER
BATTERY SIM I/F AUDIO
I/F
HFK I/F
RTC / ID IC 2 MIC
SIM SIM LEVEL
CTRL 3V/5V
Connector
A/D CONV RF I/F A/D, D/A
SIM CARD
RF TCXO
BLOCK
6.2.1 General Baseband Indications
The Baseband part consists of two chips, a digital chip IC 1 and an analog one IC 2.
The CMD-J5/J16 external memory size is 32 Mbits Flash ROM and 4 Mbit SRAM.
IC 1
The application of IC 1 is the management of the GSM baseband processes through the GSM layer 1, 2 and 3
protocols as described in the ETSI standard with a specific attention to the power consumption in both GSM
dedicated and idle modes.
It is a chip that implements:
the digital baseband processes of the CMD-J5/J16 and combines a Digital Signal Processing (DSP) with its
program and data memories,
a Micro-Controller core with emulation facilities and an internal RAM memory,
a clock squarer cell,
several compiled ports and equivalent CMOS gates.
Full support for Full-Rate, Enhanced Full-Rate and Half-Rate speech coding is given.
18
IC 2
IC 2 is the platform of the A/D-D/A converter for the interfacing and processing of baseband I/Q signals and voice
signals.
It includes:
the complete set of baseband functions to perform the interface and processing of voice signals,
interface for processing of baseband components as In Phase (I) and Quadrature (Q) signals which support
single slot and multi slot mode,
associated auxiliary RF control features,
supply voltage regulation,
battery charging control and
switch ON/OFF system analysis.
Further, IC 2 includes also on chip voltage reference, under voltage detection and power -on reset circuits.
IC 2 interfaces with the digital baseband device through a set of digital interfaces dedicated to the main functions
of IC 1:
1. A baseband serial port (BSP) and a voiceband serial port (VSP) to communicate with the DSP.
2. A micro- controller serial port (USP) to communicate with the micro contoller core of IC 1.
3. A time serial port (TSP) to communicate with the processing unit for real time control.
6.3 Block Diagram - Audio
IC 1
IC 2
6.3.1 General Audio Indications
Multiactor (Loudspeaker /Ringer Vibrator)
This device is a combined electrodynamic vibration exciter with an additional membrane to improve frequency
response and enhance ringer level.
The system is tuned to the vibration frequency around 130 Hz.
Headset Connector (Headphone Jack)
The headset is connected directly to the circuit to the built in microphone and earpiece. The connector is a 4-pole
jack with 2 switches.
19
SECTION 7
SPARE PARTS AND ACCESSORIES LIST
Note:
· The parts with no reference in the exploded view are not supplied.
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark
1 A-3649-251-A CABINET, UPPER SUB-ASSY ACCESSORIES & PACKING MATERIALS
(HONG KONG/PHILIPPINE) *************************************************
1 A-3649-263-A CABINET, UPPER SUB-ASSY
(MALAYSIA) 1-476-203-11 AC ADAPTOR EU QN-3AC1
1 A-3649-313-A CABINET, UPPER SUB-ASSY (MALAYSIA)
(TAIWAN) 1-476-204-11 AC ADAPTOR UK QN-3AC2
2 1-542-441-21 MICROPHONE (HONG KONG)
3 A-3649-063-A RECEIVER ASSY 1-476-206-12 AC ADAPTER (CABLE) QN-3TC
(TAIWAN/PHILIPPINE)
4 3-045-009-01 RUBBER KEY 1-757-783-11 AC POWER-SUPPLY CORD SET
5 A-3622-451-A LCD ASSY (TAIWAN)
6 1-794-665-11 CONNECTOR HOUSING 1-823-596-11 CORD SET, POWER (PHILIPPINE)
7 1-793-605-22 SIM CONNECTOR
8 A-3622-453-A FLEX MOUNT 3-221-976-21 MANUAL, INSTRUCTION
(CHINESE, TRADITIONAL) (HONG KONG)
9 3-225-215-01 PLATE, JACK 3-221-976-81 MANUAL, INSTRUCTION
10 1-418-426-21 ROTARY ENCODER