Copyright 1997. Nokia Mobile Phones. All Rights Reserved.
NSM–1
PAMS
Foreword
Amendment
Number
Technical Documentation
AMENDMENT RECORD SHEET
DateInserted ByComments
Page 2
Original 10/98
PAMS
NSM–1
Technical Documentation
SERIES CELLULAR PHONES
CONTENTS:
Foreword
General Information
System Module
UIF Module
Transceiver NSM–1NY
Foreword
NSM–1
SERVICE MANUAL
Service Software Instructions
Tuning Instructions
Service Tools
Disassembly/Troubleshooting Instructions
Handsfree Unit HFU–2
Non–serviceable Accessories
Installation Instructions CARK–64
Installation Instructions CARK–91
Original 10/98
Page 3
NSM–1
PAMS
Foreword
This document is intended for use by qualified service personnel only.
Company Policy
Our policy is of continuous development; details of all technical modifications will
be included with service bulletins.
While every endeavour has been made to ensure the accuracy of this document,
some errors may exist. If any errors are found by the reader, NOKIA MOBILE
PHONES Ltd should be notified in writing.
Please state:
Title of the Document + Issue Number/Date of publication
Latest Amendment Number (if applicable)
Page(s) and/or Figure(s) in error
Please send to:Nokia Mobile Phones Ltd
Technical Documentation
IMPORTANT
PAMS Technical Documentation
PO Box 86
24101 SALO
Finland
Page 4
Original 10/98
PAMS
NSM–1
Technical Documentation
Warnings and Cautions
Please refer to the phone’s user guide for instructions relating to operation,
care and maintenance including important safety information. Note also the
following:
Warnings:
1.CARE MUST BE TAKEN ON INSTALLATION IN VEHICLES
FITTED WITH ELECTRONIC ENGINE MANAGEMENT
SYSTEMS AND ANTI–SKID BRAKING SYSTEMS. UNDER
CERTAIN FAULT CONDITIONS, EMITTED RF ENERGY CAN
AFFECT THEIR OPERATION. IF NECESSARY, CONSULT THE
VEHICLE DEALER/MANUFACTURER TO DETERMINE THE
IMMUNITY OF VEHICLE ELECTRONIC SYSTEMS TO RF
ENERGY.
2.THE HANDPORTABLE TELEPHONE MUST NOT BE OPERATED
IN AREAS LIKELY TO CONTAIN POTENTIALLY EXPLOSIVE
ATMOSPHERES EG PETROL STATIONS (SERVICE STATIONS),
BLASTING AREAS ETC.
Foreword
3.OPERATION OF ANY RADIO TRANSMITTING EQUIPMENT,
Cautions:
1.Servicing and alignment must be undertaken by qualified
2.Ensure all work is carried out at an anti–static workstation and that
3.Ensure solder, wire, or foreign matter does not enter the telephone
4.Use only approved components as specified in the parts list.
5.Ensure all components, modules screws and insulators are
INCLUDING CELLULAR TELEPHONES, MAY INTERFERE WITH
THE FUNCTIONALITY OF INADEQUATELY PROTECTED
MEDICAL DEVICES. CONSULT A PHYSICIAN OR THE
MANUFACTURER OF THE MEDICAL DEVICE IF YOU HAVE
ANY QUESTIONS. OTHER ELECTRONIC EQUIPMENT MAY
ALSO BE SUBJECT TO INTERFERENCE.
personnel only.
an anti–static wrist strap is worn.
as damage may result.
correctly re–fitted after servicing and alignment. Ensure all cables
and wires are repositioned correctly.
6.All PC’s used with NMP Service Software for this produce must be
bios and operating system ”Year 2000 Compliant”.
Slim Battery BLS–2 900 mAh Li–ion0670206
Standard Battery BMS–2S 900 mAh NiMH0670225
Standard Battery BMS–2 900 mAh NiMH0670203
Vibrator Battery BMS–2V 900 mAh NiMH0670204
Extended Battery BLS–4 1500 mAh Li–ion0670207
Extended Battery BLS–5 600 mAh Li–ion0670224
AC Travel Charger ACP–7E (EUR) 207–253 Vac0675144
AC Travel Charger ACP–7U (US) 108–132 Vac0675143
General Information
er section
AC Travel Charger ACP–7C (US) 198–242 Vac0675158
AC Travel Charger ACP–7X (UK) 207–253 Vac0675145
AC Travel Charger ACP–7H (UK) 180–220 Vac0675146
AC Travel Charger ACP–7X (AUS) 216–264 Vac0675148
Fast Travel Charger ACP–9E (EUR) 90–264 Vac0675149
Fast Travel Charger ACP–9U (US) 90–264 Vac0675151
Fast Travel Charger ACP–9X (UK) 90–264 Vac0675150
Fast Travel Charger ACP–9A (AUS) 90–264 Vac0675152
Cigarette Lighter Charger LCH–90675120
Desktop Stand DCH–90675174
Mobile Holder MBC–10700060
Mobile Holder MCC–10620043
Handsfree Unit HFU–20694049
Power Cable PCH–4J0730055
HF Microphone HFM–80690016
HF Speaker HFS–120692008
Mounting Plate MKU–10620036
Swivel Mount HHS–90620037
Headset HDC–90694053
Loopset LPS–10201179
Belt Clip BCH–160720145
External Antenna Cable XRC–10730103
Data Adapter Cable DAC–20730106
Original 10/98
Page 2 – 7
NSM–1
PAMS
General Information
Technical Documentation
Technical Specifications
General Specifications of Transceiver NSM–1
ParameterUnit
Cellular system GSM and DCS1800
RX frequency band 935.2 ... 959.8 MHz GSM
1805.2 ... 1879.8 MHz DCS1800
TX frequency band 890.2 ... 914.8 MHz GSM
1710.2 ... 1784.8 MHz DCS1800
Output power +5 ...+33 dBm / 3.2 mW ... 2 W GSM
+0 ... +30 dBm/ 1 mW ... 1 W DCS1800
Duplex spacing 45 MHz GSM
95 MHz DCS1800
Number of RF channels 124 GSM
374 DCS1800
Channel spacing 200 kHz
Number of TX power levels 15
Sensitivity, static channel –102 dBm/ BER < 2.439 % GSM
V/ Unloaded ACP–9 Charger
mA/ Supply current
V/ Unloaded ACP–7 Charger
mA/ Supply current
V/ Unloaded ACP–9 Charger
mA/ Supply current
V/ Unloaded ACP–7 Charger
mA/ Supply current
DC–
JACK
2CHRG
Mic
ports
3XMICInput signal volt-
4SGNDSignal ground00mVrms
5XEAROutput signal volt-
6MBUSI/O low voltage
7FBUS_RXInput low voltage
CHRG
CTRL
CTRL
Output high voltage
PWM frequency
Output high voltage
PWM frequency
Acoustic signalN/AN/AN/AMicrophone sound ports
age
age
I/O high voltage
Input high voltage02.0
2.0
2.0
0
2.0
2.8V/ Charger control (PWM)
32
2.8V/ Charger control (PWM)
32
601 VppmVrms
801 VppmVrms
0.8
2.8
0.8
2.8
high
Hz /PWM frequency for
charger
high
Hz /PWM frequency for
charger
Serial bidirectional control
bus.
Baud rate 9600 Bit/s
V/ Fbus receive.
V/ Serial Data, Baud rate
9.6k–230.4kBit/s
8FBUS_TXOutput low voltage
Output high voltage
9L_GND Charger ground
input
Original 10/98
0
2.0
000V/ Supply ground
0.8
2.8
V/ Fbus transmit.
V/ Serial Data, Baud rate
9.6k–230.4kBit/s
Page 3–9
NSM–1
Im edance
50ohm
tor
PAMS
System Module
Technical Documentation
RF Connector Contacts
Con-
tact
1EXT_ANT
2GND
Line
Symbol
ParameterMini-
mum
p
Typical
/ Nomi-
nal
Maxi-
mum
Unit / Notes
External antenna connec-
,
0 V DC
Supply Voltages and Power Consumtion
ConnectorLine SymbolMinimumTypical /
Nominal
Charging VIN 7.1 8.4 9.3 V/ Travel charger,
Charging VIN 7.25 7.6 7.95 V/ Travel charger.
Charging I / VIN 720 800 850 mA/ Travel char-
Charging I / VIN 320 370 420 mA/ Travel char-
Maximum/
Peak
Unit / Notes
ACP–9
ACP–7
ger, ACP–9
ger, ACP–7
Page 3–10
Original 10/98
PAMS
NSM–1
Technical Documentation
Power Distribution Diagram
The power supply is based on the ASIC circuit CCONT. The chip consists
of regulators and control circuits providing functions like power up, reset
and watchdog. External buffering is required to provide more current on
some blocks.
The MCU and the CCONT circuits control charging together, detection
being carried out by the CCONT and higher level intelligent control by the
MCU. The MCU measures battery voltage by means of the CCONT. The
CCONT also measures charger voltage, temperature and size of the battery.
Detailed power distribution diagrams are given in Baseband blocks and
RF blocks later in the document.
V_IN
PWM
CHARGING
CIRCUITRY
PWM
CCONT
TXP
VBAT
System Module
bias
power det
POWER AMPLIFIER
VBAT
BATTERY
VBAT
Note: VTX uses
a discrete
transistor to increse
VR7 output
capability
VSIM
SIM
V5V
VBAT
VBB
V
T
X
P
W
R
Y
X
N
P
P
W
W
R
R
S
R
S
C
I
X
M
O
P
P
W
R
T
W
X
R
P
MAD
VBB
UIF
PWRONXMEM
5V
VBB
V5V/VCP
VRX_2
VSYN_2
VRX_1
V_TX
VSYN_1
VSYN_1
VXO
VCOBBA
VREF
VBB
SUMMA
CRFU3
VREF
BAND SEL
RF SYNTHESIZERS
VCXO
COBBA
Original 10/98
Page 3–11
NSM–1
PAMS
System Module
Baseband Module
Block Diagram
TX/RX SIGNALS
COBBA
UI
COBBA SUPPLY
RF SUPPLIES
CCONT
BB SUPPLY
Technical Documentation
PA SUPPL Y
32kHz
CLK
SLEEP CLOCK
SIM
13MHz
CLK
SYSTEM CLOCK
IR
AUDIOLINES
BASEBAND
Technical Summary
The baseband module consists of four asics, CHAPS, CCONT, COBBA–
GJ and MAD2, which take care of the baseband functions of NSM–1.
The baseband is running from a 2.8V power rail, which is supplied by a
power controlling asic. In the CCONT asic there are 6 individually controlled regulator outputs for RF–section and two outputs for the baseband. In addition there is one +5V power supply output (V5V) for flash
programming voltage and other purposes where a higher voltage is needed. The CCONT contains also a SIM interface, which supports both 3V
and 5V SIM–cards. A real time clock function is integrated into the
CCONT, which utilizes the same 32kHz clock supply as the sleep clock. A
backup power supply is provided for the RTC, which keeps the real time
clock running when the main battery is removed. The backup power supply is a rechargable polyacene battery. The backup time with this battery
is minimum of ten minutes.
MAD
+
MEMORIES
VBAT
BATTERY
CHAPS
SYSCON
Page 3–12
Original 10/98
PAMS
NSM–1
Technical Documentation
The interface between the baseband and the RF section is handled by a
specific asic. The COBBA asic provides A/D and D/A conversion of the
in–phase and quadrature receive and transmit signal paths and also A/D
and D/A conversions of received and transmitted audio signals to and
from the UI section. The COBBA supplies the analog TXC and AFC signals to rf section according to the MAD DSP digital control and converts
analog AGC into digital signal for the DSP. Data transmission between the
COBBA and the MAD is implemented using a parallel connection for high
speed signalling and a serial connection for PCM coded audio signals.
Digital speech processing is handled by the MAD asic. The COBBA asic
is a dual voltage circuit, the digital parts are running from the baseband
supply VBB and the analog parts are running from the analog supply
VCOBBA.
The baseband supports three external microphone inputs and two external earphone outputs. The inputs can be taken from an internal microphone, a headset microphone or from an external microphone signal
source. The microphone signals from different sources are connected to
separate inputs at the COBBA asic.
System Module
The output for the internal earphone is a dual ended type output capable
of driving a dynamic type speaker. Input and output signal source selection and gain control is performed inside the COBBA asic according to
control messages from the MAD. Keypad tones, DTMF, and other audio
tones are generated and encoded by the MAD and transmitted to the
COBBA for decoding. A buzzer and an external vibra alert control signals
are generated by the MAD with separate PWM outputs.
EMC shieding is implemented using a metallized plastic B–cover with a
conductive rubber seal on the ribs. On the other side the engine is
shielded with a frame having a conductive rubber on the inner walls,
which makes a contact to a ground ring of the engine board and a
ground plane of the UI–board. Heat generated by the circuitry will be conducted out via the PCB ground planes.
Original 10/98
Page 3–13
NSM–1
C
PAMS
System Module
Technical Documentation
Bottom Connector External Contacts
ContactLine SymbolFunction
1VINCharger input voltage
DC–jack
side contact
(DC–plug ring)
DC–jack
center pin
DC–jack
side contact
(DC–plug jacket)
2CHRG_CTRLCharger control output (from phone)
Microphone
acoustic ports
3XMICAccessory microphone signal input (to phone)
4SGNDAccessory signal ground
L_GNDCharger ground
VINCharger input voltage
CHRG_CTRLCharger control output (from phone)
Acoustic signal (to phone)
5XEARAccessory earphone signal output (from phone)
6MBUSMBUS, bidirectional serial data i/o
7FBUS_RXFBUS, unidirectional serial data input (to phone)
8FBUS_TXFBUS, unidirectional serial data output (from phone)
9L_GNDCharger ground
Bottom Connector Signals
PinNameMinTypMaxUnitNotes
1,3VIN
2L_GND00VSupply ground
7.25
3.25
320
7.1
3.25
720
7.6
3.6
370
8.4
3.6
800
7.95
16.9
3.95
420
9.3
3.95
850
V
V
V
mA
V
V
mA
Unloaded ACP–7 Charger (5kohms
load)
Peak output voltage (5kohms load)
Loaded output voltage (10ohms load)
Supply current
Unloaded ACP–9 Charger
Loaded output voltage (10ohms load)
Supply current