Sony CMD-CD18 User Manual
SERVICE MANUAL
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CMD-CD18
Chinese-Mode!
SPECIFICATIONS
Signalling format
Frequency range E-GSM 900 MHz,Transmit: 880 -915 MHz
GSM power class Class 4 (2W)
DCS power class Class 1 (1W)
SIM chip Pluggable mini SIM card
Display
Channel spacing 200 kHz
Number of channels E-GSM: 174
Frequency stability
RF output power GSM: 2W
Battery life
Dual-Band
Receive: 925 - 960 MHz
DCS 1800 MHz , Transmit: 1710 - 1785 MHz
Receive: 1805 - 1880 MHz
High resolution full graphics display
Resolution: 97 x 33 pixels
1 header line for icons
-3 lines X 16 large characters
DCS: 374
Transmit frequency drift (synchronized)
< ± 0,1 p.p.m
DCS: 1W
Standby: 50h-180h standard battery
70h -250h extended battery
Talk time : 2h30 - 6h standard battery
PORTABLE DIGITAL CELLULAR TELEPHONE
WITH ACCESSORIES
Power requirements
Operating temperature
Accessories operating temperature
Battery pack charging temperature
Dimensions
Weight
Volume
Supplied accessories
Optional accessories
Design and specifications are subject to change without prior notice.
This appliance conforms with EEC Directive 87/308/EEC regarding interference suppression.
3.8 V (nominal)
-10°C to +55°C
± 0°C to +450 C
± QOC to +4QOC
139 mm X 45.5 mm x 26.5
139 g
120 cm3
Power adapter ;
Battery (std.)
Battery (extd.)
Cigar Lighter Charger QNTravel Charger QNHandsfree kit QNEasyCom(SoftModem)QN
PC-Card QNHeadset QNDesktop Charger QN-
ONONQNQNQN-
mm3
■2AC1 (AEP)
2AC2 (UK)
2AC3 (Australia)
CD5BPS
CD5BPE
2CC
2TC
CD5HFK
-2EC
2PCM
2HS
CD5DTC
NOTE
This device contains electrostatic sensitive components. Damage can occur to these components
if the appropriate handling is not adhered to.
Handling precautions:
A working area where 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 1.2Mi2 resistor to a common ground point.
> A quick release skin contact device with a flexible cord, which has a built in safety resistor of
between 5.2MQ and 1.2Mi2 shall be used. The flexible cord must be attached to a
dissipative earth point.
> All containers and storage must be of the conductive type.
Batteries:
This device contains an internal battery in addition to the external battery packs. These batteries
are recyclable and should be disposed of in accordance with national legislation. They must not
be incinerated, or disposed of as ordinary rubbish.
TABLE OF CONTENTS
SECTION 1
Specifications
SECTION 2
General Descriptions
2.1 Multi Band............................................................................. 05
2.2 Real Time Clock................................................................... 05
2.3 Vibra Alert Functionality
2.4 Battery Safety........................................................................05
2.5 Battery Capacity....................................................................06
2.6 Accessory Interlace...............................................................06-07
2.7 RF Antenna connector / antenna switch
2.8 Languages
............................................................................
SECTION 3
Available Accessories
3.1 Hands free kit QN-CD5 HFK.....................................09
3.2 Cigar Lighter Charger QN-2 CC............................................09
3.3 Travel Charger QN-2 TC
3.4 EasyCom-SoftModemQN-2 EC
3.5 PC Card QN-2 PCM
3.6 Head set QN-2 HS
3.7 Desktop Charger QN-CD5 DTC.....................................10
3.8 Extended Battery QN-CD5 BPE.....................................10
........................................................
...............................
............................................
............................................
.........................................
............................................
(see Cover sheet)
05
08
08
09
09
10
10
SECTION 4
Operating Instructions
4.1 Basic Features.....................................................................11
4.2 Icon Glossary.......................................................................12
4.3 Menu Qverview
....................................................................
SECTION 5
5.1 Disassembly..........................................................................14-15
5.2 Interface to GSM-Tester........................................................16
13
SECTION 6
Programming Instructions
6.1 Requirement..........................................................................17
6.2 Hardware set-up....................................................................17
6.3 Software set-up
6.4 Display contrast adjustment
.....................................................................
..................................................
SECTION 7
7.1 Block Diagram - Radio Frequency........................................20
7.2 Block Diagram - Baseband
...................................................
SECTION 8
Exploded View
............................................................................
SECTION 9
9.1 Spare Parts and Accessories List........................................23
17-18
19
21
22
SECTION 2
GENERAL DESCRIPTIONS
2.1 Multi-band :
CMD-CD18 support E-GSM 900 and DCS 1800 multi-band functionality.
Because the usage of multi-band depends on network capabilities, the phone is able to operate as a single band
mobile in GSM 900 as weil as in DCS 1800; In addition it supports the extra functionality required for multi-band
mobile stations: lnter-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.
The CMD-CD18 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.
2.2 Real Time Clock (RTC):
The real time clock is integrated into the phone.
When the mobile is switched on the RTC is powered via the CPU.
When the phone is powered down, the RTC is powered from the main battery via it’s own low quiescent current
regulator.
When the main battery is low or removed, a back-up battery keeps the clock alive.
After the main battery has reached a voltage level of 3.5V the RTC keeps the time for 10 days.
After the main battery is removed the RTC keeps the time for 10 min.
2.3 Vibra Functionality
The vibrator is a 1.3V device with a vibrating frequency fixed at 120Hz (±20%) and located in the handset.
A general port pin of the CPU controls the switch mode of the vibration motor. It is powered directly from the
battery by an interface control unit. If the mobile is in the phase of switching on or off the vibrator is off at ail times.
2.4 Battery Safety
The battery pack contains a safety circuitry. 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 (4.24V- 4.3V). The charging resumes
when Vbat falls below (4.1 IV - 4.23V).
Under voltage: When the cell voltage drops below (1.3V - 1.7V) the cell is disconnected for discharging.
Charging is still possible.
2.5 Battery Capacity:
Standard Battery
Extended Battery
The phone can be charged even during making phone calls.
However, the shortest charging time will be reached when the phone is switched off.
As the charging circuit is integrated in the battery pack, the phone cannot be powered up by the charger without the
battery pack being attached.
10OOmAh typical
1450mAh typical
Ll-ion QN-CD5BPS Li-ion QN-CD5BPE
2.6 Accessory interface
The table explains what kind of pins the phone supplies to the different accessories.
Pins
Charger
GND
18
V
Charge
1/2
V
ACC_
power
3
Audio
IN
14
Audio
Out
13
ACC
ID
11
ACC
Detect
6
TX
(OUT)
9
RX
(IN)
10
AGND
12
CLC
Desktop charger V
Head set V
HFK V V V
PCMCIA
EasyCom
V V
V
V
V
Connector layout
V V
V
a/
18 2
V V
V
a/
a/
a/ V V
a/
V
V
V
V
V
V V
The connector comprises the following pins:
Detection:
The detection of accessory is done by the charge pin and the detect pin.
Any accessory with an active charge will wake up the phone.
The insertion and removal of the charger (Cigar Lighter Charger, Desktop-Charger, AC-Charger) is detected via
polling. To reduce the power consumption the polling can take up to 5 sec.
The insertion and removal of other accessory is detected via an Interrupt. This detection is only possible when the
phone is powered up.
ID:
The ID pin indicates what kind of accessory is connected.
ACC power:
ACC-power has different functionality with different accessories. ACC-power supplies power to the headset
(min.2.7V and min. 10 mA) or will be used as a signaling pin for the Hands Free Kit.
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).
RX and TX:
This is the communication interface to the PCMCIA card “QN-2PCM” or the PC-link cable ’’QN-2EC”.
Audio In and Audio Out
These pins build the audio interface to the Head-Set and the Hands Free Kit.
Audio IN:
To limit the noise which is coupled on the Mic-line, the Mic amplifier in the Hands Free Kit “QN-CD5HFK” and
Head-set “QN-2HS” have an output 280mVrms into lOkii.
Audio OUT: >
The single ended output delivers 265mV into a 32Q load.
2.7 RF Antenna connector / antenna switch
To connect an external antenna for accessory use, the CMD-CD18 contains a stable RF connector with an
integrated mechanical switch. This connector is placed on the PWB. The integrated mechanical switch switches
between the helix antenna and the external RF antenna connection. The switching criterion is mechanical pressure
from the RF accessory connector.
2.8 Languages
The CMD-CD18 supports the following languages:
Chinese (Simpl.)
Chjnese ( Trad.J^
English
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