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Programmes After Market Services (P.A.M.S.) Technical Documentation NME­2A Series Transceivers

Chapter 1 Handset HSE ­ 6XA

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NME­2A Handset HSE ­ 6XA

P.A.M.S. Technical Documentation

CHAPTER 5 ­ HANDSET HSE ­ 6XA CONTENTS Page No
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Technical Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Modes of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . External Signals and Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Display Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Functional Blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Circuit Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Construction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Handset Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Microphone Amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Earphone Amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CPU with Peripherals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HOOK Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . M2BUS Electronics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . LCD Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Display Controller/Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Keyboard Matrix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Illumination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Voltage Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Power on/off Logic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Oscillators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Handset Processor Gates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Parts List of EH9 (Issue 3.4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Assembly Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5­5 5­5 5­5 5­5 5­6 5­7 5­7 5­9 5­9 5­9 5­9 5­9 5 ­ 10 5 ­ 10 5 ­ 10 5 ­ 10 5 ­ 10 5 ­ 10 5 ­ 11 5 ­ 11 5 ­ 11 5 ­ 11 5 ­ 12 5 ­ 12 5 ­ 17 5 ­ 21

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List of Figures
Figure 1. Figure 2. Figure 3. Figure 4. Figure 5. Figure 6. Handset connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Block Diagram ­ HSE­6XA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Circuit Diagram EH9 Module (Version: 0.8 Edit 48) . . . . . . . . . Component Layout Diagrams EH9 Module Side 1 . . . . . . . . . . Component Layout Diagrams EH9 Module Side 2 . . . . . . . . . . Exploded View HSE­6XA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5­6 5 ­ 13 5 ­ 14 5 ­ 15 5 ­ 15 5 ­ 21

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Introduction
The HSE­6XA Handset has two main functions: to form an electro­acoustic interface between the user and the transceiver unit and to provide means for controlling the transceiver unit and other accessories. The HSE­6XA is divided into two parts: the EH9 electronics module and the MHSE6XA mechanics. The EH9 module consists of an 8­bit microprocessor with internal memory, a 2x8 character display (+ 2 seven­segment) with one driver IC, keyboard, earphone, microphone, loudspeaker and corresponding amplifiers. The mechanics consist of the A­cover (front), B­cover (rear), keyboard rubber mat, coiled cord, display frame and a number of smaller parts. The HSE­6XA is designed for single­handset systems and for mobile use only, so it has no audio switches, and is not provided with functions for a power­safe or sleep mode.

Technical Summary
Modes of Operation
The HSE­6XA has only one mode of operation, used when the handset is operating as a combined handset and control unit. There is no need for a local mode because all testing can be done by means of M2BUS­messages.

External Signals and Connections
The HSE­6XA has an 8­pin connector for connection to the junction box, system cable and transceiver via coiled cord.

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HANDSET HJ VBS DGND RXD
47R 47R

M2BUS N/C PWR AGND
10uF

MIC EAR

1k 100k

47nF

Figure 1.

Handset connector

Signal names and basic interface connections: Pin 1 Name VBS Level typ. 13.2 V min. 10.0 V max. 17.0 V 2 3 DGND MBUS Input: "0"< 0.9 V "1"> 1.9 V Output: "0"< 0.5 V 4 5 6 7 8 POWER AGND MIC EAR max. 2 Vrms max. 1.2 Vrms No connection Series diode dropout 0.7 V Analog ground No DC connection DC 0.0 V Digital ground Input levels at processor input/RxD Max allowed capacitance 2 nF Comments

Display Specifications
The HSE­6XA has a 16 character (5x2) dot matrix and two and a half seven segment indexes. Original 08/97

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The HSE­6XA has a 2x8 (5x7) dot matrix display for 2 seven­segment characters, a signal strength indicator (left bar) and a number of fixed indicators over and under the character lines. The yellow­green supertwist liquid crystal display is connected to the pcb by means of elastomer connectors. The display is illuminated with green LEDs from both sides. Technical specifications for the display are as follows: Display type Illumination colour Driving mode Driving voltage Temp. compensation Lens thickness Display driver Storage temperature Oper. temperature Humidity Response times Yellow­green supertwist lcd, transflective Yellow­green LED MUX 1:16, 1/5­bias 7.5 V at +25°C 30 mV/°C 1.1 mm NEC µPD7228AG ­30...+85°C ­25...+70°C typ. 50% RH max. 90% RH t(rise) < 100 ms (+25°C) < 1500 ms (­25°C) t(fall) < 100 ms (+25°C) < 1500 ms (­25°C)

Functional Description
Functional Blocks
HSE­6XA Handset consists of the following functional blocks: ­ Audio circuit ­ Microprocessor ­ Keyboard matrix ­ Keyboard illumination ­ Display controller/driver ­ Voltage converter ­ LCD display ­ Display illumination The Audio circuit consists of the earphone and the microphone and corresponding amplifiers. The Microprocessor is a single chip version with internal ROM and RAM. The microprocessor controls all other blocks.

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The Keyboard matrix is connected directly to microprocessor inputs and outputs. Keyboard illumination is accomplished with LEDs and is switched on, off or dimmed by the microprocessor. The Display controller/driver is connected to the microprocessor over a parallel data line, and contains a display data RAM and character generator ROM/RAM. The Voltage converter converts the voltages of +5 V to ­5 V and divides the voltage between +5 V and ­5 V to five levels (V1...V5), which are connected to the display controller/driver. The LCD display is connected to pcb and display drivers over two elastomer connectors. The Display illumination is of the same type as the keyboard illumination.

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Circuit Description
General
The user interface of the handset is of the menu type. Alphabetical characters can be used. A dot matrix display is provided.

Construction
The handset consists of two body halves with a PC board inserted in between. A coiled cord, a speaker, an earphone and a microphone are wired to the PC board.

Handset Module
The HSE­6XA handsets consist of the following functional blocks: 1. microphone amplifier 2. earphone amplifier 3. CPU with peripherals 4. Hook indicator 5. M2BUS electronics 6. LCD display 7. display controller/driver 8. keyboard matrix 9. illumination 10. voltage supply 11. power on/off logic 12. oscillators Microphone Amplifier The microphone is biased through the RC filter R135,C37,C65 and source resistor R49. The frequency response of the microphone is filtered to obtain a suitable shape by low pass filters C10/R60 and R10/R11/C11/C12/C14/R8 and high pass filter R9/C13. The amplification is about 29 dB with a 1 kHz signal. The microphone amplifier is built around OPAMP N3 (pin 5,6,7).

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Earphone Amplifier The Earphone amplifier is of the differential type. Total amplification is about 10 dB. The reference voltage is 4.0 volts. The earphone amplifier is built around OPAMP N3 (pin 1,2,3 and pin 12,13,14) CPU with Peripherals Microprocessor D1 is a single chip version with internal ROM and RAM. It has 16 kbytes of ROM and 256 bytes of RAM. It controls the other blocks on the basis of information coming from the M2BUS. In addition, it reads the user inputs, and sends them to the M2BUS. HOOK Indicator On­hook/off­hook information is received from a reed relay, which is located on the PC board and controlled by a magnet in the handset cradle. M2BUS Electronics The MBUS is a serial data bus with which the handset sends messages to, and receives them from, the radio unit. Transistor V28 sends the outgoing messages (TXD). Incoming data comes to processor pin 11 (RXD). Net free state is controlled by software before message sending. LCD Display The display is a 16 symbol 5 x 7 dot matrix supertwist LCD with two 7­segment characters and a few indicators. The LCD is connected to the PCB by two elastomer connectors. The multiplexing ratio is 1:16. Display Controller/Driver The Display controller/driver is connected to the microprocessor by a parallel (4 bit) data line, and contains display data RAM and character generator ROM/RAM. All other characters are created by the processor ROM. There is reserved a memory location for one character in RAM, loaded by a M2BUS message. Resistors R35, R42 and R88 comprise a resistor network from which the LCD driving voltages are received. The voltage between +5 V and ­ 5 V is divided to five levels which are applied to the display driver. R41 provides temperature compensation (about 10 mV/ °C).

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Keyboard Matrix Keyboard has a 3 x 8 line matrix. Four of the eight write lines are used in common with display driver data lines. A diode in each of these lines prevents any contention in data lines when two or more keys are depressed at the same time. Illumination The keyboard and the display are illuminated by LEDs. They can all be switched on or off. Furthermore the display LEDs have 3 dimmer levels. The on/off and dimmer function is controlled by the microprocessor. Variations in power supply voltage (10.8V to 15.6V) do not affect illumination as all LEDs are powered by constant current sources. The keyboard is lit by 22 LEDs. There is one illumination LED for each button. The display is lit by six LEDs V9...V14 (three in series). The LEDs are located on the PC board at the ends of the plastic display light conductor. The light conductor is beneath the display. Voltage Supply The handset receives the battery voltage of the radio unit (about 12 V). This voltage is fed to the LEDs and the voltage regulators. There is an eight volt regulator N3 for audio circuits and a five volt regulator, N4, for the logic. The analog 8V supply is divided to 4.0 volt by resistors R3 and R4 and buffered by op.amp. N3 (pin 8,9,10) connected as a voltage follower to get the reference voltage for the audio amplifiers. The negative five volt supply for the display driver is created by diode V29 and capacitors C17 and C24. The drive frequency is produced and buffered by inverter D3. To avoid audio disturbances, ground potentials are separated between the analog and digital parts. AGND is the analog ground where the ground current is almost zero. DGND is the ground for the digital circuits and circuits which use more power, such as LEDs. Power on/off Logic The power on/off switch is located on the keyboard (but not in the matrix). The radio unit detects the depression of the power button and turns power on. When the button is pressed while power is on, the microcontroller of the handset detects it and sends a M2BUS message to the radio unit. The radio unit detects the duration of the key depression; if it is more than 0.5 seconds it will turn power off.

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Oscillators The clock frequency of 7.3728 MHz for the microcontroller is generated by crystal oscillator B4. In order to decreae harmonic frequencies resistor R2 and capacitor C32 are added. The oscillator for the display driver and the negative five volt generator comprises inverter D3, resistors R33 and R34 and capacitor C47. The frequency is about 200 kHz.

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Block Diagram of HSE­6XA
5x7 DOT MATRIX LCD 2x8 CHARACTERS + 2x7­ SEGMENT
DISPLAY ILLUMINATION

+12V DISPILL DISPDIMM

LCD DRIVER/CONTROLLER NEC uPD7228AG C(41:0) CLK
COLUMN DRIVER ROW DRIVER

R(15:0)

OSCILLATOR

DC ­ CONVERTER
V1 V2 V3 V4

DISPLAY DATARAM 100x8 bit

V5 VDD CLK GND
CLK VDD GND

VDD GND VLC1 VLC2 VLC3 VLC4 VLC5

CHARACTER GENERATOR ROM 5600 bit

I/O BUFFER

RESET CS

C/D
BUSY

DISPCTRL

STB
DB(3:0)

KEYBOARD MATRIX

PWR

INTEL 87C51FB 8bit microcontroller
DISPILL DISPDIMM

ROM 16k
KBRDILL KBRDDIMM MBUS INTERFACE
RESET HOOK

RAM 256b

RESET BLOCK

KEYBOARD ILLUMINATION

HOOK­ IND.

+12V
KBRDILL

AUDIO BLOCK

+12V

LOGIC 5V

VDD EARDR

AUDIO +8V

8V

PWR 1 2 3 4 5 6 7 8

+12V DGND MBUS LSP POWERAGND MIC EAR

D0000111

Figure 2.

Block Diagram ­ HSE­6XA

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Circuit Diagram of EH9 Module

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Layout Diagrams

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Layout Diagrams

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Parts List of EH9
(EDMS Issue 3.4) ITEM R001 R002 R003 R004 R006 R007 R008 R009 R010 R011 R012 R013 R015 R018 R019 R021 R022 R025 R026 R027 R028 R029 R030 R033 R034 R035 R036 R037 R038 R039 R040 R041 R042 R049 R060 R063 R067 CODE 1430087 1430111 1430087 1430087 1430075 1430087 1430067 1430017 1430067 1430067 1430035 1430167 1430065 1430049 1430049 1430087 1430035 1430065 1430065 1430065 1430065 1430057 1430049 1430087 1430065 1430067 1430067 1430067 1430067 1430067 1430065 1800619 1430049 1430043 1430067 1430075 1430067 DESCRIPTION Chip resistor Chip resistor Chip resistor Chip resistor Chip resistor Chip resistor Chip resistor Chip resistor Chip resistor Chip resistor Chip resistor Chip resistor Chip resistor Chip resistor Chip resistor Chip resistor Chip resistor Chip resistor Chip resistor Chip resistor Chip resistor Chip resistor Chip resistor Chip resistor Chip resistor Chip resistor Chip resistor Chip resistor Chip resistor Chip resistor Chip resistor NTC resistor Chip resistor Chip resistor Chip resistor Chip resistor Chip resistor 100 k 1.0 M 100 k 100 k 33 k 100 k 15 k 390 15 k 15 k 1.0 k 47 10 k 3.9 k 3.9 k 100 k 1.0 k 10 k 10 k 10 k 10 k 8.2 k 3.9 k 100 k 10 k 15 k 15 k 15 k 15 k 15 k 10 k 15 k 3.9 k 2.2 k 15 k 33 k 15 k VALUE TYPE

5 % 0.063 W 0603 5 % 0.063 W 0603 5 % 0.063 W 0603 5 % 0.063 W 0603 5 % 0.063 W 0603 5 % 0.063 W 0603 5 % 0.063 W 0603 5 % 0.063 W 0603 5 % 0.063 W 0603 5 % 0.063 W 0603 5 % 0.063 W 0603 5 % 0.063 W 0603 5 % 0.063 W 0603 5 % 0.063 W 0603 5 % 0.063 W 0603 5 % 0.063 W 0603 5 % 0.063 W 0603 5 % 0.063 W 0603 5 % 0.063 W 0603 5 % 0.063 W 0603 5 % 0.063 W 0603 5 % 0.063 W 0603 5 % 0.063 W 0603 5 % 0.063 W 0603 5 % 0.063 W 0603 5 % 0.063 W 0603 5 % 0.063 W 0603 5 % 0.063 W 0603 5 % 0.063 W 0603 5 % 0.063 W 0603 5 % 0.063 W 0603 10 % 1206 5 % 0.063 W 0603 5 % 0.063 W 0603 5 % 0.063 W 0603 5 % 0.063 W 0603 5 % 0.063 W 0603

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R072 R073 R074 R075 R076 R077 R078 R079 R088 R104 R105 R107 R108 R109 R118 R120 R121 R122 R123 R124 R125 R128 R129 R130 R131 R132 R133 R134 R135 R136 R138 R139 R140 C007 C008 C009 C010 C011 C012 C013 C014 C015

1430087 1430075 1430087 1430087 1430075 1430075 1430075 1430065 1430043 1430057 1430087 1430065 1430065 1430065 1430167 1430167 1430167 1430167 1430167 1430151 1430151 1430065 1430075 1430065 1430065 1430065 1430049 1430035 1430035 1430035 1430167 1430035 1430035 2307816 2610005 2604209 2610005 2320083 2320107 2610005 2320099 2307816

Chip resistor Chip resistor Chip resistor Chip resistor Chip resistor Chip resistor Chip resistor Chip resistor Chip resistor Chip resistor Chip resistor Chip resistor Chip resistor Chip resistor Chip resistor Chip resistor Chip resistor Chip resistor Chip resistor Chip resistor Chip resistor Chip resistor Chip resistor Chip resistor Chip resistor Chip resistor Chip resistor Chip resistor Chip resistor Chip resistor Chip resistor Chip resistor Chip resistor Ceramic cap. Tantalum cap. Tantalum cap. Tantalum cap. Ceramic cap. Ceramic cap. Tantalum cap. Ceramic cap. Ceramic cap.

100 k 33 k 100 k 100 k 33 k 33 k 33 k 10 k 2.2 k 8.2 k 100 k 10 k 10 k 10 k 47 47 47 47 47 10 10 10 k 33 k 10 k 10 k 10 k 3.9 k 1.0 k 1.0 k 1.0 k 47 1.0 k 1.0 k 47 n 10 u 1.0 u 10 u 1.0 n 10 n 10 u 4.7 n 47 n

5 % 0.063 W 0603 5 % 0.063 W 0603 5 % 0.063 W 0603 5 % 0.063 W 0603 5 % 0.063 W 0603 5 % 0.063 W 0603 5 % 0.063 W 0603 5 % 0.063 W 0603 5 % 0.063 W 0603 5 % 0.063 W 0603 5 % 0.063 W 0603 5 % 0.063 W 0603 5 % 0.063 W 0603 5 % 0.063 W 0603 5 % 0.063 W 0603 5 % 0.063 W 0603 5 % 0.063 W 0603 5 % 0.063 W 0603 5 % 0.063 W 0603 5 % 0.063 W 0603 5 % 0.063 W 0603 5 % 0.063 W 0603 5 % 0.063 W 0603 5 % 0.063 W 0603 5 % 0.063 W 0603 5 % 0.063 W 0603 5 % 0.063 W 0603 5 % 0.063 W 0603 5 % 0.063 W 0603 5 % 0.063 W 0603 5 % 0.063 W 0603 5 % 0.063 W 0603 5 % 0.063 W 0603 20 % 25 V 0805 20 % 16 V 3.5x2.8x1.9 20 % 16 V 3.2x1.6x1.6 20 % 16 V 3.5x2.8x1.9 5 % 50 V 0603 5 % 50 V 0603 20 % 16 V 3.5x2.8x1.9 5 % 50 V 0603 20 % 25 V 0805 Original 08/97

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C017 C018 C019 C022 C023 C024 C028 C032 C033 C034 C037 C038 C039 C040 C041 C042 C043 C044 C045 C046 C047 C048 C049 C050 C051 C052 C053 C054 C055 C056 C057 C058 C059 C060 C061 C062 C063 C064 C065 B004 V001 V002

2307816 2320107 2307816 2320045 2320045 2307816 2610005 2320035 2604209 2307816 2610005 2320059 2320107 2320107 2320107 2320107 2320059 2320059 2320059 2320059 2320059 2320059 2320059 2320059 2320059 2320059 2320059 2320059 2320059 2310752 2307816 2307816 2307816 2307816 2604209 2604209 2320059 2320099 2610005 4510036 4864378 4864378

Ceramic cap. Ceramic cap. Ceramic cap. Ceramic cap. Ceramic cap. Ceramic cap. Tantalum cap. Ceramic cap. Tantalum cap. Ceramic cap. Tantalum cap. Ceramic cap. Ceramic cap. Ceramic cap. Ceramic cap. Ceramic cap. Ceramic cap. Ceramic cap. Ceramic cap. Ceramic cap. Ceramic cap. Ceramic cap. Ceramic cap. Ceramic cap. Ceramic cap. Ceramic cap. Ceramic cap. Ceramic cap. Ceramic cap. Ceramic cap. Ceramic cap. Ceramic cap. Ceramic cap. Ceramic cap. Tantalum cap. Tantalum cap. Ceramic cap. Ceramic cap. Tantalum cap. Crystal 7.3728 M Led Green Led Green

47 n 20 % 25 V 0805 10 n 5 % 50 V 0603 47 n 20 % 25 V 0805 27 p 5 % 50 V 0603 27 p 5 % 50 V 0603 47 n 20 % 25 V 0805 10 u 20 % 16 V 3.5x2.8x1.9 10 p 5 % 50 V 0603 1.0 u 20 % 16 V 3.2x1.6x1.6 47 n 20 % 25 V 0805 10 u 20 % 16 V 3.5x2.8x1.9 100 p 5 % 50 V 0603 10 n 5 % 50 V 0603 10 n 5 % 50 V 0603 10 n 5 % 50 V 0603 10 n 5 % 50 V 0603 100 p 5 % 50 V 0603 100 p 5 % 50 V 0603 100 p 5 % 50 V 0603 100 p 5 % 50 V 0603 100 p 5 % 50 V 0603 100 p 5 % 50 V 0603 100 p 5 % 50 V 0603 100 p 5 % 50 V 0603 100 p 5 % 50 V 0603 100 p 5 % 50 V 0603 100 p 5 % 50 V 0603 100 p 5 % 50 V 0603 100 p 5 % 50 V 0603 10 n 20 % 50 V 0805 47 n 20 % 25 V 0805 47 n 20 % 25 V 0805 47 n 20 % 25 V 0805 47 n 20 % 25 V 0805 1.0 u 20 % 16 V 3.2x1.6x1.6 1.0 u 20 % 16 V 3.2x1.6x1.6 100 p 5 % 50 V 0603 4.7 n 5 % 50 V 0603 10 u 20 % 16 V 3.5x2.8x1.9 +­50PPM 12x6x3mm V 0805 V 0805

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V003 V004 V005 V006 V007 V008 V009 V010 V011 V012 V013 V014 V015 V026 V027 V028 V029 V032 V033 V034 V035 V036 V037 V038 V039 V040 V041 V042 V043 V044 V045 V046 V047 V048 V049 V050 V051 V052 V053 V054 V055 V056

4864378 4864378 4864378 4864378 4864378 4864378 4864378 4864378 4864378 4864378 4864378 4864378 4200917 4200917 4200917 4200917 4108639 4108639 4108639 4200917 4200917 4108639 4200917 4108639 4200917 4200917 4200917 4200917 4864378 4864378 4864378 4864378 4864378 4864378 4864378 4864378 4864378 4864378 4864378 4864378 4864378 4864378

Led Green V 0805 Led Green V 0805 Led Green V 0805 Led Green V 0805 Led Green V 0805 Led Green V 0805 Led Green V 0805 Led Green V 0805 Led Green V 0805 Led Green V 0805 Led Green V 0805 Led Green V 0805 TransistorBC848B/BCW32 npn 30 V 100 mA SOT23 TransistorBC848B/BCW32 npn 30 V 100 mA SOT23 TransistorBC848B/BCW32 npn 30 V 100 mA SOT23 TransistorBC848B/BCW32 npn 30 V 100 mA SOT23 Diode x 2 BAS28 75 V 250 mA SOT143 Diode x 2 BAS28 75 V 250 mA SOT143 Diode x 2 BAS28 75 V 250 mA SOT143 TransistorBC848B/BCW32 npn 30 V 100 mA SOT23 TransistorBC848B/BCW32 npn 30 V 100 mA SOT23 Diode x 2 BAS28 75 V 250 mA SOT143 TransistorBC848B/BCW32 npn 30 V 100 mA SOT23 Diode x 2 BAS28 75 V 250 mA SOT143 TransistorBC848B/BCW32 npn 30 V 100 mA SOT23 TransistorBC848B/BCW32 npn 30 V 100 mA SOT23 TransistorBC848B/BCW32 npn 30 V 100 mA SOT23 TransistorBC848B/BCW32 npn 30 V 100 mA SOT23 Led Green V 0805 Led Green V 0805 Led Green V 0805 Led Green V 0805 Led Green V 0805 Led Green V 0805 Led Green V 0805 Led Green V 0805 Led Green V 0805 Led Green V 0805 Led Green V 0805 Led Green V 0805 Led Green V 0805 Led Green V 0805 Original 08/97

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D001

D002 D003 N003 N004 N005 S022 S023 S025 X001 X002 X003 X004 A001 P001

0240427 4370157 8400472 9380149 4309047 4309569 4306494 4301062 4301062 5200116 5200116 5304759 5416638 5416640 5416640 5416640 9510038 9854152 5140450 5140566 9854152

MCU Software Module MCU 8BIT5V OTP16K RAM256X8 PLCC44 ROM Code Sticker Brady LAT­2­747 9.5X9.5 IC, LCD driver uPD7228 QFP80 IC, 6 x inverter 4069 SO14 IC, 2 x op.amp. TL074ID SO14 IC, regulator LP2951AC SO8S IC, regulator LP2951AC SO8S Bush button switch 1­lock 1­pole 1­POLE Bush button switch 1­lock 1­pole 1­POLE Reed relay 10at 0.5a 2x15 smd Connector 8­pole right angle 1.5 1.5 Pin header m1x2 p1.5 90deg 1a0r02 1A0R02 Pin header m1x2 p1.5 90deg 1a0r02 1A0R02 Pin header m1x2 p1.5 90deg 1a0r02 1A0R02 RF shield 3D21421 HSE­1 PC board EH9 135.9x48.0x1.6 m4 3/pa Cond. microphone 62+­ 2DB HSE­1 Receiver capsule cr­4e with leads LEADS PCB EH9 135.9X48.0X1.6 M4 3/PA

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NME­2A Handset HSE ­ 6XA

P.A.M.S. Technical Documentation

Exploded View of HSE­6XA

13

Figure 3.

Exploded View HSE­6XA

Assembly Parts
ITEM 1 2 3 4 5 6 7 8 9 Q'TY CODE 9450015 9450014 9790169 9204295 9457035 7100410 6293003 9380154 DESCRIPTION Front cover Bottom cover Spare part combination Keypad HSE­6XA Logo plate "Nokia" Display lens Coil cord PT­screw Label Blank Original 08/97 VALUE, TYPE 1D 21067 1D 21068 DMC 00069 4D 21063 4D 21151 3C 21414 KB 30x14 WN1442 FEZN

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P.A.M.S. Technical Documentation

NME­2A Handset HSE ­ 6XA

12 13

9450013 9480329

Volume button Foam Piece

2D 21137

Original 08/97

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NME­2A Handset HSE ­ 6XA

P.A.M.S. Technical Documentation

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Original 08/97