Copyright ã 2002 Nokia Corporation All Rights Reserved
Customer Care Solutions (CCS)
Technical Documentation
Amendment Record Sheet
Amendment NoDateInserted ByComments
07/02JoMIssue 1
Issue 1 07/02
Copyright ã 2002 Nokia Corporation All Rights Reserved
Contents:
Customer Care Solutions (CCS)
Technical Documentation
NPM-2NX Overall Manual Contents
Section 1:Foreword
Section 2:General Information
Section 3:System & UI Module
Section 4:Parts List
Section 5:Product Variants
Section 6:Service Software Instructions & Service Co nc epts
Section 7:Service Tools
Section 8:Assembly & Disassembly Instructions
Section 9:Troubleshooting Instructions
Section 10: Accessories
Section 11: Car Kit
Section 12: Schematic Diagrams
Issue 1 07/02
Copyright ã 2002 Nokia Corporation All Rights Reserved
Customer Care Solutions (CCS)
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 m ade to ensure the accuracy of this document, some
errors may exist. If any errors are found by the reader, NOKIA CORPORATION should be
notified in writing.
Please state:
Technical Documentation
IMPORTANT
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 Corporation / Nokia Mobile Phones
PAMS Technical Documentation
PO Box 86
FIN-24101 SALO
Finland
Issue 1 07/02
Copyright ã 2002 Nokia Corporation All Rights Reserved
Customer Care Solutions (CCS)
Technical Documentation
Warnings and Cautions
Please refer to the phone's user guide for instruc tions 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 TH E IMMUNITY OF VEHICLE ELECTRONIC
SYSTEMS TO RF ENERGY.
2. THE HANDPORTABLE TELEPHONE MUST NOT BE OPERATED IN AREAS LIKELY
3. OPERATION OF ANY RADIO TRANSMITTING EQUIPMENT, INCLUDING CELLU-
Cautions:
1. Servicing and alignment must be undertaken by qualified personnel only.
2. Ensure all work is carried out at an anti-static workstation and that an anti-
3. Ensure solder, wire, or foreign matter does not ent er the te lephone as dam-
4. Use only approved components as specified in the parts list.
5. Ensure all components, modules screws and insulators are corre ctly re-fit-
TO CONTAIN PO TENTIALLY EXPLOSIVE ATMOSPHERES E.G., PETROL STATIONS
(SERVICE STATIONS), BLASTING AREAS, ETC.
LAR TELEPHONES, MAY INTERFERE WITH THE FUNCTIONALITY OF INADEQUATELY PROTECTED MEDICAL DEVICES. CONSULT A PHYSICIAN OR THE
MANUFACTURER OF THE MED ICAL DEVICE IF YOU HAVE ANY QUESTIONS.
OTHER ELECTRONIC EQUIPMENT MAY ALSO BE SUBJECT TO INTERFERENCE.
static wrist strap is worn.
age may result.
ted after servicing and alignment. Ensur e all cables and wires are repositioned correctly.
Issue 1 07/02
Copyright ã 2002 Nokia Corporation All Rights Reserved
Customer Care Solutions (CCS)
ESD Protection
Nokia requires that phone repair pla ces have sufficient ESD protection (against static
electricity) when servicing cellular phones.
A cellular phone, which is ready for use, can be handled normally wi thout ESD protection. The SIM card and battery can be replaced in normal conditions of use.
To replace the color cover ES D protection must be appli ed, except fo r the phone cover s
which can be replaced by the customer.
Technical Documentation
All electronic parts of the phone, including the displa y, are susceptible to ESD. Resistors,
too, can be damaged by static electricity discharge.
All ESD sensitive parts must be packed in metallized protective bags during shipping and
handling outside any ESD Protected Area (EPA).
Every repair action involving opening the phone or handling the phone components must
be done under ESD protection.
ESD protected spare part packages MUST NOT be opened/closed out of an EPA.
For more detailed information about ESD protection and EPA, contact your local Nokia
After Market Services representative.
Issue 1 07/02
Copyright ã 2002 Nokia Corporation All Rights Reserved
General Specifications of Transceiver NPM-2NX ......................................................7
Page 2ãNokia CorporationIssue 1 07/02
NPM-2NX
CCS Technical DocumentationGeneral Information
Product Selection
Handportables
The NPM-2NX is a multimode radio transceiver unit for 800/1900MHz Time Division
Multiple Access (TDMA) and GSM 1900 MHz networks. The transceiver consists of system/RF module, keypad module, LCD module, and assembly parts. The user interface (UI)
consists of normal number, talk, soft, and power ke ys in the keymat.
The antenna is internal; antenna connection is provided by spring from PCB to antenna.
Name:Type Code:Material Code:
Transceiver See Product Variants
Standard Battery (1000 mAh Li-Ion)BLB-30670283
AC Travel Charger (Euro plug) 207-253 VacACP-7E0675144
AC Travel Charger (US plug) 108-132 VacACP-7U0675143
AC Travel Charger (AR plug) 220 VacACP-7AR0675244
Performance Travel Charger Euro plug 90-264 VacACP-8E0675195
Performance Travel Charger US plug 90-264 VacACP-8U0675196
Performance Travel Charger AR plug 220 VacACP-8AR0675248
Issue 1 07/02ãNokia CorporationPage 3
NPM-2NX
General InformationCCS Technical Documentation
Desktop Option
The desktop option allows the user to charge the phone from the mains.
Transceiver NPM-2NXSee Product Variants
Li-Ion Battery BLB-3 1000 mAh0670283
AC Travel Charger ACP-7E (EUR) 207-253 Vac0675144
AC Travel Charger ACP-7U (US) 10 8-132 Vac0675143
AC Travel Charger ACP-7AR (AR) 220 Vac0675244
Performance Travel Charger ACP-8E (EUR) 90-264 Vac0675195
Performance Travel Charg e r AC P - 8U (US) 90-264 Vac0675196
Performance Travel Charger ACP-8AR (AR) 220 Vac0675248
Extra Battery Charger DDC-10675243
DCH-12K Desktop stand
DCH-8D Desktop stand
DCH-8 Desktop stand
Mounting Plate MKU-10620036
Swivel Mount HHS-90620037
Cigarette Lighter Charger LCH-90675120
Handsfree Microphone HFM-80690016
Headset HDC-9P0694063
Headset HDE-10694076
Phone Adapter (TTY/Headset) HDA-80694092
Loopset LPS-10272233
Passive Car Holder MBC-10700060
Leather case CSL-27 with BCH-12P Beltclip0720333
Leather Style Case CSL-170 72 0271
Data Cable DLR-3P0730183
0675228
0675256
0675179
Page 6ãNokia CorporationIssue 1 07/02
NPM-2NX
CCS Technical DocumentationGeneral Information
Technical Specifications
General Specifications of Transceiver NPM-2NX
Table 1: Specification for TDMA800 + AMPS
ParameterUnit
Cellular systemTDMA800 + AMPS
RX frequency band869.01 - 893.97 M Hz
TX frequency band82 4. 01 - 848.97 MHz
Output power-5 - +28 dBm / 0.3 mW - 630 mW
Number of RF channels832
Channel spacing30 kHz
Table 2: Spec ification for TDMA 1900
ParameterUnit
Cellular SystemTDMA1900 + AMPS
RX frequency band1930.05 - 1989.99 MHz
TX frequency band1850.01 - 1909.95 MHz
Output power-5 - +28 dBm / 0.3 mW - 630 mW
Number of RF channels1999
Channel spacing30 kHz
Table 3: NPM-2NX General Specifications
ParameterUnit
Cellular system GSM 1900
RX frequency band GSM: 1930 ... 1990 MHz
TX frequency band GSM: 1850 ... 1910 MHz
Output power+0 ...+30 dBm / 1.0 mW ... 1 W
Duplex spacing 80 MHz
Number of RF channels299
Channel spacing 200 kHz
Number of TX power levels16
Sensitivity, static channel-102 dBm
Frequency error, static channel< 0.1 ppm
RMS phase error
Fig 7 BLB-3 Battery contacts (BLB-2 has the same interface)...........................................20
Fig 8 System connector........................................................................................................21
Fig 9 IR interface.................................................................................................................22
Fig 10 Top view of production test pattern..........................................................................24
Fig 11 Telescoping pattern between UPP and UEM..........................................................24
Fig 12 Transceiver block naming for interfaces..................................................................27
Fig 13 NPM-2NX Frequency Plan ......................................................................................53
Fig 14 Power Distribution Diagram.....................................................................................54
Fig 15 Block diagram of the NPM-2NX RF module ..........................................................56
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CCS Technical DocumentationS ystem Module
Abbreviations
ADCAnalog to Digital Converter
ASICApplication Specific Inte grated Circuit
BBBaseband
COGChip On Glass
ENGINEThe Transceiver parts fixed to PWB
FBUSFast asynchronous serial bus
FDLFlash Down Loading, programming the phone FLASH memory
GSMGlobal system for mobile communications (Groupe Spêcial Mobile)
HWHardware
I & QIn phase and Quadrature components of complex signal
IRInfrared. A wireless data/audio transmit medium.
IrDAInfrared Data Association
JTAGAn in-circuit test method, based on the standard IEEE-1149.1
LDOLow Drop Out
LEDLight Emitting Diode
Low Iq modeLow quiescent current mode
MBUSA bidirectiona l serial bus
NTCNegative Temperature Coefficient.
PWBPrinted Wiring Board
PCMPulse Code Modulation
PDMPulse Density Modulation
PWMPulse Width Modulation
RFRadio Frequency
RxReceiver path
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NPM-2NX
System ModuleCCS Technical Documentation
SIMSubscriber Identity Module
SWSoftware
TDMATime Division Multiple Access
TransceiverTransmitter & Receiver, mobile phone
TxTransmitter path
UEMUniversal Energy Management baseband ASIC.
UIUser Interface
UPPUniversal Phone Processor baseband ASIC.
USUnited Stat es (of America)
US-AMPSAnalog Mobile Phone System used in United States
US-DAMPS Digital AMPS, used in US, channel compatible with AMPS
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7
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CCS Technical DocumentationS ystem Module
Transceiver NPM-2NX
Introduction
The NPM-2NX is a dual band radio transceiver unit for GAIT (AMPS/TDMA800/
TDMA1900/GSM1900) networks. It is a true 3 V transceiver with internal antenna and
vibra.
Mechanical construction resembles Nokia 61XX series and the same accessories can be
used. External RF connector is included.
An integrated Infrared link is located on the top of the phone.
NPM-2NX has the connection for the small SIM (Subscribe Identity Module) card.
The PWB has one-sided SMD and there is no separate User Interfa ce PWB but the key-
board connections are on the non-SMD side of the board.
EXT RF
ANT
Test I/F
Ostrich
SIM
Figure 1: NPM-2NX Block Diagram
LCD DRIVER
✉
☎
Display
Backlight/
Frontlight
1
0#
System Module WG8
RF
800/1900 MHz
SAFARI_GTE
BB
UEM
RF Converters
Audio
Energy Management
UPP8M
MCU:ARM7
DSP: LEAD3
System Logic
TRANSCEIVER
USER INTERFACE
6
9
EARP
HEADSET
MIC
BUZZER
VIBRA
BATTERY
BTemp
INFRA R E D
Ext. Memory
~
~
~
~
SYSTEM
CONNECTOR
Flash-ROM 64 Mbit
CHARGING
Issue 1 07/02ãNokia CorporationPage 7
NPM-2NX
V
Y
UI
SIMCARD
SIMIF
System ModuleCCS Technical Documentation
Engine Module WG8
Introduction
This section describes the baseband part of the NPM-2NX transceiver.
The BB architecture is similar t o the earlier BB generation. The major difference is the
integration level. Core BB consists of 2 ASICs and flash memory.
BB core technical specification
The core part of NPM-2NX BB (figure below) consist of 2 ASICs, UEM a n d UPP, and flash
memory. Following sections describe these parts.
Figure 2: Syst em Block Diagram
PA supply
SAFARI GTE
RFIC CTRL
RFCLK
19.44 / 13 MHz
UPP
MEMADDA
MEMCONT
FLASH
RF Supplies
RF RX/TX
PURX
RF RX/TX
SLEEPCLOCK
32kHz
CBUS/DBUS
AUDIO
BB Supplies
KLIGHT/ DLIGHT
PWR ON
BASEBAND
EXTERNAL AUDIO
CHARGER CONNECTION
MBUS AND FBUS
UEM
IR
EAR
MIC
BUZZER
IBRA
BATTER
System Connector
UEM
UEM introduction
UEM is the Universal Energy Management IC for digital handportable phones. In addition
Page 8ãNokia CorporationIssue 1 07/02
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CCS Technical DocumentationS ystem Module
to energy management it performs all the baseband mixed-signal functions.
Most of UEM pins have 2kV ESD protection and those signals, which are considered to be
exposed more easily to ESD, have 8kV prot ection inside UEM. Such si gnals are all audio
signals, headset signals, BSI, Btemp, Fbus and Mbus signals.
Blocks
REGULATORS
UEM has 6 regulators for BB power supplies and 7 regulators for RF power supplies. VR1
regulator has 2 outputs VR1a and VR1b. In addition there are 2 current generators IPA1
and IPA2 for biasing purposes.
Bypass capacitor (1uF) is required for each regulator output to ensure stability.
Reference voltages f or regulators require ex ternal 1uF capacitors. Vref25RF is reference
voltage for VR2 regulator, Vref25BB is reference voltage for VANA, VFLASH1, VFLASH2,
VR1 regulators, Vref278 is reference voltage for VR3, VR4, VR5, VR6, VR7 regulators,
VrefRF01 is reference voltage for VIO, VCORE, VSIM regulators and for RF.
VANA regulator supplies internal and external analog circuitry of BB. It is disabled in
sleep mode.
Vflash1 regulator supplies LCD, IR-module and di gital par ts of UE M a nd Saf ari_GTE a sic.
It is enabled during startup and goes to low Iq-mode in sleep mode.
Vflash2 regulator supplies data cable (DLR-3). It's enabled/disenabled through writing
register and default is off.
VIO regulator supplies both external and internal logic circuitries. It is used by LCD, flash
and UPP. Regulator goes in low Iq-mode in sleep mode.
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VCORE regulator supplies DSP and Core part o f UPP. Voltage is programmable and startup default is 1.5V. Regulator goes to low Iq-mode in sleep mode.
VSIM regulator supplies SIM card. Voltage is programmable. Regulator goes in to low Iqmode in sleep mode.
VR1 regulator uses two LDOs and a charge pump. Charge pump requires one external 1uF
capacitor in Vpump pin and 220nF flying capacitor between pins CCP and CCN. VR1 regulator is used by Safari_GTE RF ASIC.
VR2 regulator is used to supply ex ternal RF parts, lower band up converter, TX power
detector module and Safari_GTE. In light load situations VR2 regulator can be set to low
Iq-mode.
VR3 regulator supplies VCTCXO and Safari_GTE in RF. It's enabled always when UEM is
active. When UEM is in sleep mode VR3 is disabled.
RF IF
VR4 regulator supplies RF parts having l ow noise requirements. In light load situati ons
VR4 regulator can be set to low Iq-mode.
VR5 regulator supplies lower band PA. In light load situations VR5 regulator can be set to
low Iq-mode.
VR6 regulator supplies higher band PA and TX amplifier. In light load situations VR6 regulator can be set to low Iq-mode.
VR7 regulator supplies UHF VCO and Safari_GTE. In light load situations VR7 regulator
can be set to low Iq-mode.
IPA1 and IPA2 are programmable current generators. 27kΩ/1%/100ppm external resistor
is used to improve the accuracy of output current. IPA1 is used by lower band PA and
IPA2 is used by higher band PA.
The interface between the baseba nd and the RF section is handled also by U EM. It 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 UEM supplie s the analog AFC signal to RF section accor ding to
the UPP DSP digital control.
Charging Control
The CHACON block of UEM ASIC controls charging. Needed funct ions for charging controls are pwm-controlled ba ttery charging switch, cha rger-monitoring circuitry, battery
voltage monitoring circuitry and RTC supply circuitry for backup battery charging (Not
used in NPM-2NX). In addition external components a re needed for EMC protection of
the charger input to the baseband module.
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CCS Technical DocumentationS ystem Module
DIGITAL IF
Data transmission between the U EM and the UPP is impleme nted using two seri al connections, DBUS (programmable clock) for DSP and CBUS (1.0MHz GSM and 1.08MHz
TDMA) for MCU. UEM is a dual voltage circuit, the digital parts are running from 1.8V
and the analog parts are running from 2.78V.
AUDIO CODEC
The baseband supports two external microphone inputs and one external earphone output. The inputs can be taken from an internal microphone, a headset microphone or from
an external microphone signal source through headset connector. The output for the
internal earpiece is a dual ended type outp ut, and the differential output is capable of
driving 4Vpp to earpiece with a 60 dB minimum signal to total distortion ratio. Input and
output signal source selection and gain control is performed inside the UEM Asic according to control messages from the UPP. A buzzer and an external vibra alert control signals are generated by the UEM with separate PWM outputs.
UI DRIVERS
UEM has dedicated single output drivers for buzzer, vibra, IR, display LEDs and keyboard
LEDs. These generate PWM square wave to devices.
IR interface
The IR interface is integrated to UEM and dat a transfer is done via TXD and RXD paths.
UEM supports data speeds up to 115.2kbit/s.
IR module integrates a sensitive receiver and a built-in power driver. IR module itself
supports speeds from 9.6kbit/s to 1.152Mbit/s. UEM supports speeds up to 115.2 kbit/s.
Vflash1 supplies IR module except transmit LED. Transmit LED is supplied from VBAT and
maximum current is limited by serial resistor. TXD and RXD lines are connected to UEM
and shutdown is controlled by UPP through level-shifter V350.
AD CONVERTERS
There is 11-channel analog to digit al converter in UEM. Some cha nnels of the AD converter aren't used in NPM-2NX (LS, KEYB1-2). The AD converters ar e calibrated in the
production line
SIM
The SIM inter fac e is the el ect ric al i nter fac e be tw een th e S ubs crib er I dent ify Mod ule Ca rd
(SIM card) and mobile phone (via UEM device). The UEM device contains power up/down,
port gating, card detect, data receiving, ATR-counter, registers and level shifting buffers
logic for SIM.
Technical information
UEM package is 168-pin CSP package with 150 signal pins, 16 thermal pins and 2 kelvin
pins. Package size is 12mm x 12mm with max. thickness of 1.23mm. Solder ball diameter
is 0.4mm +-0.05mm and ball pitch is 0.8mm.
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UPP
Introduction
NPM-2NX uses UPPv8M ASIC. The RAM size is 8M. The processor architecture consists of
both DSP and MCU processors.
Blocks
UPP is internally partitioned into two main parts:
The Processor and Memory System (i.e. Processor cores, Mega -cells, internal memories,
peripherals and external memory interface) is known as the Brain.
Brain consists of the blocks: the DSP Subsy stem (DSPSS), the MCU Subsy stem (MCUSS),
the emulation control EMUCtl, the program /data RAM PDRAM and the Brain Peripherals–subsystem (BrainPer).
The NMP custom cellular logic functions. This is known as the Body.
Body contains all interfaces and functions needed for interfacing other baseband and RF
parts. Body consists of following sub-blocks: MFI, SCU, CTSI, RxModem, AccIF , UIF, Coder,
GPRSCip, BodyIF, SIMIF, PUP and CDMA (Corona).
Technical information
UPP package is 13x13-matrix CSP package with 144 signal pins. Package size is 12mm x
12mm with max. thickness of 1.40mm. Solder ball diameter is 0.5mm +-0.05mm and ball
pitch is 0.8mm.
Flash memory
Introduction
NPM-2NX uses 64 Mbit flash as an externa l memory. VIO is used as a power supply for
normal in-system operation. An accelerated program/erase operation can be obtained by
supplying Vpp of 12 volt to flash device. Memory architecture consists of eight sectors of
8kB and 63 sectors of 64kB each.
The device has two read modes: asynchronous and burst. Burst mode read is utilized i n
NPM-2NX except the start-up when asynchronous read is used for a short time.
In burst mode UPP supplies only the initial address and subseque nt addr esses are generated inside flash by the rising edge of Clock (FLSCLK in UPP). After acknowledging the
initial address the flash starts to deliver a continuous sequentia l data word str eam. Data
stream continues until the end of the mem ory or until the user loads in a new sta rting
address or stops the burst in advance.
Technical information
Flash package is a CSP package with 40 signal pins and 4/8 support ba lls. Package max.
size is (WxLxH) 10,6mm x 11,0mm x 1.2mm. Solder ball diameter is 0.3mm and ball pitch
Page 12ãNokia CorporationIssue 1 07/02
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CCS Technical DocumentationS ystem Module
is 0.5mm.
UIHW
LCD
Introduction
NPM-2NX uses black/white GD51 96*65 full dot matrix display with COG driver. One
vendor - SEIKO SED15B0 - is used in NPM-2NX.
Interface
LCD data, clock, chip select and reset signals come from the UPP. The VIO voltage is supplied to a logic voltage pin and the FLASH1 voltage is used to supply power to the LCD.
The LCD uses extra filtering capacitors to filter voltages. The booster capacitor (C302
2u2F) is connected between the booster pin and the Vflash1. The capacitor stores the
boosting voltage.
Figure 3: LCD interface
Keyboard
Introduction
All signals for the keyboard come from the UPP thr ough the emifilter (Z300). The side
key, which does not go through the emifilter, and the power key signal are connected
directly to the UEM. The pressing of t he po wer key is de tecte d so that t he switch pow er
Issue 1 07/02ãNokia CorporationPage 13
NPM-2NX
123456789#0*Up
Down
End
Send
S Right
S Left
System ModuleCCS Technical Documentation
key connects the PWONX of the UEM to the GND and creates an interruption. Side key
detection is achieved by connecting the line to t he ground when pressing the side key
(volume up or down). The emifilter is the ESD and EMC protection.
The matrix-based keyboard interface consists of a scan column I/O data register and a
row of data register. In the keyboard scanning procedure, the MCU perform s access to
these registers to find out which key was pressed. Scanning is an interrupt-based procedure, i.e. an interrupt generated when the key is pressed, and then the MCU can start the
scanning procedure. The side keys a re also detected in the same way as the other keys,
except that there is no metaldome, and the middle pin is directly connected to the
ground.
Figure 4: Placement of keys
Power Key
All signals for keyboard come from UPP ASIC except PWRONX line for PWR key whic h is
connected directly to UEM. Pressing of PWR ke y grounds PWRONX line and UEM generates an interrupt to UPP which is then recognized as a PWR key press.
Keys
All signals for the keyboard come from the UPP through the emifilter (Z300) except the
side key, which will not go through the emifilter, and the power key signal, which is connected directly to the UEM. Pressing of the power key is detected so that the switch of
the power connects PWONX of the UEM to the GND and creates an interruption. Side key
detection is done by connecting line to ground when pressing the side key (volume up or
down). Emifilter is ESD and EMC protection.
The matrix-based keyboard interface consists of scan column I/O data register and of a
row data register. In keyboard scanning procedure, MCU performs access to these regis-
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ters to find out which key was pressed. Scanning is an interrupt procedure, i.e., an interrupt is generated when key is pressed and then the MCU can start the scanning
procedure. Side keys are also detected in the same way as other keys except that there is
no metaldome, but the middle pin is directly connected to the ground.
Introduction
NPM-2NX has 12 LEDs for lighting purposes. 6 of them (V300-V303, V310-V311) are for
display and 6 (V304-V309) for keyboard. LEDs are green light -emitting and SMD
through-board-firing.
Interfaces
Display lights are controlled by Dlight signal from UEM. Dlight output is PWM signal
which is used to control average current going through LEDs. When battery voltage
changes new PWM value is written to the PWM register. This way brightness of the lights
remains the same with all battery voltages wit hin range . Freque ncy of the signa l is fixed
128Hz.
Keyboard lights are controlled by Klight signal from the UEM. Klight output is a lso PWM
signal and is used similar way as Dlight.
Technical information
Each LED requires hole in PWB where the body of LED locate s in hole and t erminals are
soldered on component side of module PWB. LEDs ha ve white plastic body around the
diode itself which directs the emitted light better to UI-side. Current for LCD lights is
limited by resistor between Vbatt and LEDs. For keyboard lights there are resistors in par-
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System ModuleCCS Technical Documentation
allel.
Vibra
Introduction
Vibra is located to D-cover and is connected by spring connectors on the left bottom side
of the engine. Vibra manufacturers for NPM-2NX are Namiki and Ma tsushita.
Interfaces
Vibra is controlled by PWM signal VIBRA from UEM. With this signal it is possible to control both frequency and pulse width of signal. Pulse width is used to control current
when battery voltage cha nges. With frequency control it is possible to sea rch optimum
frequency to have silent and efficient vibrating.
Table 3: Electrical parameters
ParameterRequirementUnit
Rated DC Voltage1.3V
Rated speed9500 ±3000rpm
Rated current115 ±20mA
Starting current150 ±20mA
Armature resistant8.6ohm
Rated DC voltage being able to use1.2 to 1.7V
Starting DC voltagemin. 1.2V
SIM card reader
Introduction
NPM-2NX is supporting SIM card reader. The SIM is located in the bottom of the engine.
The SIM card reader is manufactured by Amphenol.
Interface
The SIM card reader is connected by spring connectors on the PWB. EMC/ESD protection
is done by ASIP, R388. It is a CSP component. VSIM provides power supply voltage to the
SIM card reader. Two spark gaps are put to the no connected pin to provide protection
from ESD.
Page 16ãNokia CorporationIssue 1 07/02
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