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NHE–3
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Technical Documentation
Contents of Transceiver
Transceiver NHE–3 7–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Related Documentation 7–2. . . . . . . . . . . . . . . . . . . . . . . . . . .
Introduction 7–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Functional Description 7–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interconnection Diagram 7–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Exploded View of NHE–3DN (8 Mb flash version) 7–4. . . . . . . . .
Assembly Parts of NHE–3DN (8 Mb flash version) 7–5. . . . . . . .
Exploded View of NHE–3DN (4 Mb flash version) 7–6. . . . . . . . .
Assembly Parts of NHE–3DN (4 Mb flash version) 7–7. . . . . . . .
Exploded View of NHE–3DA (8 Mb flash version) 7–8. . . . . . . . .
Assembly Parts of NHE–3DA (8 Mb flash version) 7–9. . . . . . . .
Exploded View of NHE–3DA (4 Mb flash version) 7–10. . . . . . . . .
Assembly Parts of NHE–3DA (4 Mb flash version) 7–11. . . . . . . .
Exploded View of NHE–3DB (4 Mb flash version) 7–12. . . . . . . . .
Assembly Parts of NHE–3DB, DP (4 Mb flash version) 7–13. . . .
Exploded View of NHE–3ZB, YB 7–14. . . . . . . . . . . . . . . . . . . . . .
Assembly Parts of NHE–3ZB, YB 7–15. . . . . . . . . . . . . . . . . . . . . . .
7–1
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NHE–3
Transceiver NHE–3
Related Documentation
Introduction
The NHE–3 is a radio transceiver unit for the Pan–European GSM network. It
is GSM power class 4 transceiver providing 11 power levels at a maximum
power of 2 W. GSM is originally Pan–European digital cellular network stan-
dard, but later phrased as the Global System for Mobile Communications. The
standard is defined together by all related parties in the European Telecommu-
nications Standard Institute, ETSI.
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Technical Documentation
6E 0260 Mechanics of NHE–3DN
6E 0260 Mechanics of NHE–3DA
6E 0260 Mechanics of NHE–3DB
7–2
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The transceiver consists of three modules: system module, user interface mod-
ule and mechanics.
Functional Description
The transceiver electronics consist of radio module (system + RF blocks) and
UIF module. UIF module is connected to radio module with a connector. Sys-
tem blocks and RF blocks are interconnected with PCB wirings. Transceiver
can be connected to accessories with a bottom system connector, which in-
cludes charging and accessory control.
The system blocks provides MCU and DSP environments, logic control IC
(EDSA), memories, audio processing and RF control hardware (RFI). On board
power supply circuitry delivers operating voltage for both system and RF
blocks.
The general purpose microcontroller, Hitachi H8, communicates with DSP, me-
mories and logic control IC (EDSA) with 8 bit data bus.
RF block is designed for a handportable phone; which operates in GSM sys-
tem. Purpose of the RF block is to receive and demodulate radio frequency sig-
nal from the base station and to transmit a modulated RF signal to the base
station.

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Interconnection Diagram
Display
2
MIC
UI – MODULE
7–3
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24
2
EARPIECE
2
BUZZER
30
RADIO – MODULE
16 2+2 2
CHARGER ANTENNA
SIM
6
SYSTEM
CONNECTOR
4
BATTERY

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NHE–3
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Exploded View of NHE–3DN (8 Mb flash version)
7–4
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NHE–3
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Assembly Parts of NHE–3DN (8 Mb flash version)
ITEM Q’TY CODE DESCRIPTION VALUE, TYPE
1 9457141 Display window 4C 24313 (Nokia 2010)
2 9450450 Front cover 2C 23888 light grey
3 0660041 Antenna retractable GSM 3D 23411
4 9790098 Keypad 4C 24005
5 9790091 Power keypad 4C 24017
6 9457099 A shield 1D 23832
7 9510188 B shield 1D 23831
8 6 6290041 PT screw 1.8–0,8x8 FeZn Torx 6
9 2 6291658 PT screw 1.4x6 FeZn Torx 6
10 9380115 Type label (print. 4D 21663)
11 9450360 Back cover 1D 23873
12 2 6290060 Screw M2x5 Torx 6
13 9457112 Connector cover 3D 23772
T1 0200467 UIF module GU1N
T2 0200382 System module GS8
9480190 Protection tape 4D 24959
(Nokia 2010)
7–5

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NHE–3
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Exploded View of NHE–3DN (4 Mb flash version)
7–6
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update:08.05.1995

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Assembly Parts of NHE–3DN (4 Mb flash version)
ITEM Q’TY CODE DESCRIPTION VALUE, TYPE
1 9457141 Display window 4C 24313 (Nokia 2010)
1 9457266 Display window (Itineris)
2 9450450 Front cover 2C 23888 light grey
3 0660096 Antenna JTI/GSM 872–960 MHz
4 9790098 Keypad 4C 24005
5 9790091 Power keypad 4C 24017
6 9457208 Shield 1D 25161
7 9540007 Chassis 1D 249418
8 6 6290041 PT screw 1.8–0,8x8 FeZn Torx 6
9 2 6290060 Screw M2x5 Torx 6
10 9380115 Type label (print. Germany 4D 24483)
10 9380115 Type label (print. Finland 4D 24295) (Nokia 2010, D2)
10 9380115 Type label (print. Germany 4D 24604) (Nokia 2010 SIP)
10 9380115 Type label (print. Finland 4D 24598) (Nokia 2010 SIP)
10 9380115 Type label (print. 4D 21663) (Nokia Itineris)
11 9450360 Back cover 1D 23873
11 9457257 Back cover 1D 24809 (Itineris)
12 2 6290060 Screw M2x5 Torx 6
13 9457112 Connector cover 3D 23772
T1 0200564 UIF module GU1MN
T2 0200603 System module GS8M
9480198 Protection tape 4D 25314
(Nokia 2010, D2)
7–7

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Exploded View of NHE–3DA (8 Mb flash version)
7–8
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Assembly Parts of NHE–3DA (8 Mb flash version)
ITEM Q’TY CODE DESCRIPTION VALUE, TYPE
1 9457168 Display window 4C 24719 (Mobira 3000)
2 9457145 Front cover 2C 24364 (Mobira 3000)
3 0660041 Antenna retractable GSM 3D 23411 (Mobira 3000)
4 9790096 Keypad 4C 24007
5 9457099 A shield 1D 23832
6 9510188 B shield 1D 23831
7 6 6290041 PT screw 1.8–0,8x8 FeZn Torx 6
8 2 6291658 PT screw 1.4x6 FeZn Torx 6
9 9380115 Type label (printing ??????)
10 9450360 Back cover 1D 23873
11 2 6290060 Screw M2x5 Torx 6
12 9457112 Connector cover 3D 23772
T1 0200468 UIF module GU1T
T2 0200382 System module GS8
9480190 Protection tape 4D 24959
7–9

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Technical Documentation
Exploded View of NHE–3DA (4 Mb flash version)
7–10
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update: 08.05.1995

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NHE–3
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Assembly Parts of NHE–3DA (4 Mb flash version)
ITEM Q’TY CODE DESCRIPTION VALUE, TYPE
1 9457168 Display window 4C 24719 (Mobira 3000)
1 9457167 Display window 4C 24748 (Nokia 2012)
2 9457145 Front cover 2C 24364 (Mobira 3000)
2 9450540 Front cover (warm blk) 0D 24150 (Nokia 2012)
3 0660096 Antenna JTI/GSM 872–960 MHz
4 9790096 Keypad 4C 24007
5 9457208 Shield 1D 25161
6 9540007 Chassis 1D 24941
7 6 6290041 PT screw 1.8–0,8x8 FeZn Torx 6
9 9380115 Type label (printing Finland 4D 24400) Nokia 2012
9 9380115 Type label (printing Germany 4D 24484) Nokia 2012
10 9450360 Back cover 1D 23873
10 9457257 Back cover 1D 24809
11 4 6290060 Screw M2x5 Torx 6
12 9457112 Connector cover 3D 23772
T1 0200565 UIF module GU1MT
T2 0200603 System module GS8M
9480198 Protection tape 4D 25314
(Nokia 2012)
7–11

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NHE–3
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Technical Documentation
Exploded View of NHE–3DB (4 Mb flash version)
update: 12/97
NHE–3DP
7–12
Copyright Nokia Mobile Phones
0500565

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NHE–3
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Technical Documentation
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Assembly Parts of NHE–3DB, DP (4 Mb flash version)
ITEM Q’TY CODE DESCRIPTION VALUE, TYPE
1 9450446 Display window 4C 24345 (Nokia 2016)
1 9457187 Display window 4C 24945 (Philips)
2 9450417 Front cover 2C 24223
2 9450490 Front cover 2C 25165
3 0660096 Antenna JTI/GSM 872–960 MHz
4 9790094 Keypad 4C 24009
4 9790123 Keypad 4C 24810
5 9457208 Shield 1D 25161
6 9540007 Chassis 1D 24941
7 6 6290041 PT screw 1.8–0,8x8 FeZn Torx 6
9 9380115 Type label (printing 4D 21663) NHE–3DB
9 9380115 Type label (printing 4D 21663) NHE–3XP
10 9450360 Back cover 1D 23873
11 4 6290060 Screw M2x5 Torx 6
12 9457112 Connector cover 3D 23772
T1 0200565 UIF module GU1MT
T2 0200603 System module GS8M
9480198 Protection tape 4D 25314
(Philips)
(Philips)
(Philips)
7–13

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Exploded View of NHE–3ZB, YB (4 Mb flash version)
7–14
NHE–3ZB 0500277
NME–3YB 0500278

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Assembly Parts of NHE–3ZB, YB
ITEM Q’TY CODE DESCRIPTION VALUE, TYPE
1 9450446 Display window 4C 24345
2 9450417 A –cover 2C 24223 (Technophone)
3 0660096 Antenna JTI/GSM 872–960 MHz
4 9790094 Keypad 4C 24009
5 9457208 Shield 1D 25161
6 9540007 Chassis 1D 24941
7 6 6290041 PT screw 1.8–0,8x8 FeZn Torx 6
9 9380115 Type label (printing 4D 21663) NHE–3DB
10 9457257 Back cover 1D 24809
11 4 6290060 Screw M2x5 Torx 6
12 9457112 Connector cover 3D 23772
T1 0200565 UIF module GU1MT
T2 0200382 System module GS8
9480198 Protection tape 4D 25314
7–15

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7–16
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