Nokia 7650, NHL-2NA Service Manual

Nokia Mobile Phones Customer Care E&A
Technical Services, Repair Concepts Confidential 05.07.2002

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Service Manual

Nokia 7650

NHL-2

Service Level 1&2

Copyright © Nokia Corporation. This material, including documentation and any related computer
programs, is protected by copyright controlled by Nokia Mobile Phones. All rights are reserved.
Copying, including reproducing, storing, adapting or translating, any or all of this material requires
the prior written consent of Nokia Mobile Phones. This material also contains confidential
information, which may not be disclosed to others without the prior written consent of Nokia Mobile
Phones.

Service Manual 7650 Level 1&2 Copyright 2002 © Nokia Corporation

Nokia Mobile Phones Customer Care E&A
Technical Services, Repair Concepts Confidential 05.07.2002

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Introduction

The purpose of this document is to give Nokia service level 1&2 workshop technicians
aids to carry out service for 7650. The use of this Service Manual is only for Nokia
authorized service partners additionally to other service documentation like Service
Bulletins.

While every endeavor has been made to ensure the accuracy of this document, some
errors may exist. If you find any errors or if you have further suggestions, Nokia should
be notified. Please keep in mind also that this documentation is continuously being
updated and modified, so watch always out for the newest version.

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.

3. OPERATION OF ANY RADIO TRANSMITTING EQUIPMENT, 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.

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–static wrist strap is
worn.

3. Ensure solder, wire, or foreign matter does not enter the telephone as damage may result.

4. Use only approved components as specified in the parts list.

5. Ensure all components, modules screws and insulators are 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”.

Service Manual 7650 Level 1&2 Copyright 2002 © Nokia Corporation

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Table of content

1. EXPLODED VIEW.................................................................................................................................... 5

2. SPARE PART LIST ................................................................................................................................... 6

3. CAMERA INFORMATION AND GONOGO TEST ............................................................................. 9

4. INFRARED GONOGO TEST ................................................................................................................ 11

5. BLUETOOTH GONOGO TEST ............................................................................................................ 12

6. SW-UPDATE ............................................................................................................................................13

7. GENERAL REPAIR INFORMATION ................................................................................................. 14

8. DISASSEMBLY INSTRUCTIONS ........................................................................................................15

9. QUICK TROUBLE SHOOTER PART1 ............................................................................................... 18

10. QUICK TROUBLE SHOOTER PART2 ........................................................................................... 19

11. QUICK TROUBLE SHOOTER PART3 ........................................................................................... 20

12. ESD PROTECTION REQUIREMENTS........................................................................................... 21

13. SERVICE NOTES................................................................................................................................ 22

14. GONOGO TESTER............................................................................................................................. 23

15. BATTERYTESTER ............................................................................................................................. 23

Service Manual 7650 Level 1&2 Copyright 2002 © Nokia Corporation

Nokia Mobile Phones Customer Care E&A

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Technical Services, Repair Concepts Confidential 05.07.2002

Change History

Originator Status Version No. Date Comments

MWy Draft 0.1 01.06.2002 Initial draft
MWy Approved 1.0 05.07.2002 approval

Service Manual 7650 Level 1&2 Copyright 2002 © Nokia Corporation

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1. EXPLODED VIEW

Description: See corresponding ITEM/CIRCUIT REF of the BOR (Bill Of Repair)

Service Manual 7650 Level 1&2 Copyright 2002 © Nokia Corporation

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2. SPARE PART LIST

SPARE PARTS

ITEM/

CIRCUIT REF.

I002 1 9790529 VOICE RECORD KEY
I003 1 9790530 POWER KEY
I004 1 9790535 TRANSCEIVER KEYMAT ASSY
I009 1 9467066 CHASSIS ASSEMBLY
I010 1 9460416 PROXIMITY RUBBER
I011 1 5140247 SPEAKER 105+-3DB
I012 1 5409119 SM JACK 2.5MM 5POL+SW
I013 1 5140255 SPEAKER 78+-2DB
I014 2 6290119 SCREW 1.8*6 RF T6+ BLK
I015 1 5200049 SM SW DOME
I016 1 5140261 COND.MIC 40+-2DB
I017 4 6290117 SCREW 1.6*4.4 RFF T5+ BLK
I019 1 4858001 VGA CAMERA MODULE
I020 1 5409215 SM SIM CONN 2*3POL
I021 1 9467064 ACOUSTIC CHAMBER ASSY
I022 2 6290093 SCREW 1.8*8 FEZN T6+
I023 2 6290119 SCREW 1.8*6 RF T6+ BLK
I025 2 6290093 SCREW 1.8*8 FEZN T6+
I026 1 9480728 PROTECTION TAPE
I027 1 9458182 KEYMAT COVER ASSY
I028 1 6490201 MAGNET
I030 1 5400255 BATTERY CONNECTOR
I031 1 5400251 DC JACK
I033 1 6800027 VIB MOTOR ASSY 1.3V
I034 1 9452255 LOCKING LATCH
I037 1 9452059 BATTERY COVER

QTY PART NO PART NAME

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SOLDERING COMPONENTS (Level 2 only!)

ITEM/

CIRCUIT REF.

G190 1 4700129 BATTERY LITHIUM 0.1MAH 3V
F001 1 5119019 SM FUSE F 1.5A 32V 0603
V001-V006 6 4860331 LED LWL88S WHITE >3,4V
V013-V014 2 4860331 LED LWL88S WHITE >3,4V

VARIANT PARTS

QTY PART NO PART NAME

ITEM/

CIRCUIT REF.

I001 1 9458224 A-COVER ASSEMBLY
I029 1 9794057 GRIP KEYMAT ASSY
I024 1 9458205 B-COVER PAINTED

SWAP UNITS

QTY PART NO PART NAME

0073982 NHL-2NA N7650 Swap Engine E&A
0073983 NHL-2NA N7650 Swap Engine FR
0073984 NHL-2NA N7650 Swap Engine PL
0073985 NHL-2NA N7650 Swap Engine CS-SK
0073986 NHL-2NA N7650 Swap Engine TR

QTY PART NO PART NAME

0073987 NHL-2NA N7650 Swap Engine RU

Service Manual 7650 Level 1&2 Copyright 2002 © Nokia Corporation

Nokia Mobile Phones Customer Care E&A
Technical Services, Repair Concepts Confidential 05.07.2002

SERVICE TOOLS

TYPE QTY PART NO PART NAME

0080541 FLS-4S SALES PACK E&A
0670246 BLB-2 BATTERY PACK
0775283 FLA-21 POS FLASH ADAPTER
0730218 XCS-1 SERVICE CABLE
0273039 DCC-1 DESKTOP STAND
0272169 AC TRAVEL CHARGER ACP-8E (EUR)
0272172 AC TRAVEL CHARGER ACP-8X (UK)
0271467 HDC-5 HEADSET
0770286 SRT-4 OPENING TOOL (UPPER PART)
0770444 SRT-5 OPENING TOOL (LOWER PART)
0770431 SRT-6 OPENING TOOL 5510

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Service Manual 7650 Level 1&2 Copyright 2002 © Nokia Corporation

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3. CAMERA INFORMATION AND GONOGO TEST

Digital cameras behave in principle like their analog predecessors. Meaning that e.g. exposure times will increase
in low light situation and the risk of blurring pictures will also rise. Too high display contrast can lead to let the
pictures appear bad on the display.
Taking a picture of a white sheet of paper can do finding dust in camera system (see pic no.7). After this you
should use full resolution view when locating the dust. Clean back window from both sides in Acoustic Chamber
(compare pic 5 & 6). A clean workbench is needed, especially when assembling the camera.

GoNoGo Test:
From Home Menu, open the Grip Cover

 Select Camera, the Camera application opens and you can see the view to take a picture.
 To take a picture, press the “Joystick”. If you have a frozen image (still picture), the Camera is ok.
 Select Delete
 Select Yes
 Select Exit
 Close the Grip Cover
 Select No, now the device is in the Home Menu again.

1. The VGA Camera works from 30cm to
infinity to the object. This object is much
to close to the Camera, which caused an
unsharp picture.

3. Geometrical distortion especially in the
edges can be seen in objects with straight
lines. This is a normal behavior.

2. The sharpest area is generally around
the middle of the picture. It is quite
normal, that the edges appear a bit
unsharp in scenes with small details.

4. Moving objects or moving the camera
can cause blurring to the images.

Service Manual 7650 Level 1&2 Copyright 2002 © Nokia Corporation

Nokia Mobile Phones Customer Care E&A
Technical Services, Repair Concepts Confidential 05.07.2002

5. Example of a good picture with clean
back window (located in Acoustic
Chamber).

6. Dust, scratches or fingerprint can cause
very unsharp pictures. Clean window or
change Acoustic Chamber.

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7. This distortion comes from camera dirt
or dust, which can’t be cleaned. Change
Camera Module, if back window is clean.

9. Taking pictures from a moving car will
lead to skewed pictures.

8. Good sample of an outdoor picture in
good light conditions.

10. When taking the 7650 out of your hot
car in summer, you could have distortion
like this. This is also normal.

Service Manual 7650 Level 1&2 Copyright 2002 © Nokia Corporation

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4. INFRARED GONOGO TEST

You need another infrared device (e.g. 6310i) to do a GoNoGo test. The infrared windows
of the devices must be directed to each other and should have a distance of approximate
15 cm.

Test device Golden Phone

Activate Infrared in the 7650 first:

 Push the Menu Key
 Select Connect.
 Select Infrared, now a blinking infrared symbol appears on top right corner

ÍInfrared is only activated for approx. 1 minute

 Send Business Card via infrared from golden phone (refer to user guide)
 Wait for confirmation on golden phone. If sending fails, direct IR windows to each other and check if

infrared is still active in 7650.

 Select Back on 7650, when “new messages” symbol appears on top right corner. Test is successful!
 Select Exit
 Select Show to display the received business card
 Select Options
 Select Delete to erase the card immediately
 Select Yes for confirmation
 Select Back
 Select Exit to go to Stand-by Mode

Service Manual 7650 Level 1&2 Copyright 2002 © Nokia Corporation

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5. BLUETOOTH GONOGO TEST

You need a second 7650 or another Bluetooth device (e.g. 6310/i) to do a GoNoGo test.
Make sure that Bluetooth is activated in the reference device (Golden Phone).
Activate Bluetooth in the 7650 (receiver), for another device please see in the user guide.

Test device

Golden Phone, Bluetooth activated

Bluetooth testing

Home Menu

 Push the Menu key
 Select Games
 Select Snake EX
 Select Option
 Select Play 2-player
 Select Via Bluetooth
 Select Client
 Select Yes, if Bluetooth isn’t already activated, otherwise go to next step
 Search window appears, if all Bluetooth devices in rage will be displayed, the test is successful!
 Select Cancel, Exit, Back and Exit to go back to Stand-by Mode

Service Manual 7650 Level 1&2 Copyright 2002 © Nokia Corporation

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6. SW-UPDATE

To use FLS-4S Flash Dongle you have to follow the user guide inside the sales package. Please
check always the latest version of flash software, which is available on Nokia Partner Web Site.

Flash Concept – (Point of Sales)

Note that ACF-8 charger is inside FLS-4S sales pack and cannot be ordered separately.

Before attaching the Flash Adapter FLA-21, the FBus and MBus pads have to be uncovered
with opening tool SRT-4/5 (see disassy instructions).

Description: See corresponding ITEM/CIRCUIT REF of the SPL (Spare Part List)

Service Manual 7650 Level 1&2 Copyright 2002 © Nokia Corporation

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7. GENERAL REPAIR INFORMATION

In this section the technician will get some general hints how to carry out repairs:

o Before starting the repair you must take care of ESD precautions like being in your ESD-area and

connecting your wristband.

o Use gloves to avoid corrosion and fingerprints.
o Protect windows and displays with a foil to avoid dust and scratches.
o When cleaning the pads you have to use a soft cloth and isopropanol. It is not allowed to use a

glass fiber pencil because it scratches the surface and will lead later on to corrosion.

o Mechanical parts, which didn’t repair the failure, can be reused, if they are not soldered.
o Use always original Nokia parts or accessories.
o Meet the torque requirements when assembling the unit (see also the document “torques for

transceiver assembly” on Partner Websites).

o Always use your own equipment for testing where you are sure that it works. E.g. if the customer

complains about charger function, please test the phone with your own charger to be sure if
phone or charger causes the malfunction.

Following General Service Bulletins have to be followed:

SB-055 Common notice for good ventilation
SB-089: Don’t try to repair prototypes (indicated on Typelabel).
SB-107: Be sure that you have minimum hardware requirements in place.
SB-115: Handling of liquid damages.
SB-121: If one of your service tools cause malfunction, return the defective part.

SB-122: Soldering with manual hot air gun is totally forbidden because of the very sensitive

µBGA components and µVia technology.

SB-124 Service Policy for packaging serviced products
SB-131: Check these guidelines when refurbishing products.
SB-132: You need a Golden Phone for inspecting your measuring equipment.

Please check Nokia Partner Web Site (PWS) for latest news and files on a regular basis.

Legend for Quick Trouble Shooter:

This legend is valid for all parts of the

Quick Trouble Shooter

Follow the steps until the problem is solved. If this doesn’t help, you are not authorized
to go forward. Only underlined components ( e.g

Follow the arrows step by step

. I007

) can be changed.

Pads or contacts: Check optical and mechanical condition as well as corrosion.
Clean if necessary.

Measure component for electrical functionality and change, if needed.
No more action possible, send product to the

appropriate service partner with higher service level.

4, 5

Superscript numbers are for additional comments or instructions

Service Manual 7650 Level 1&2 Copyright 2002 © Nokia Corporation

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8. DISASSEMBLY INSTRUCTIONS

You will find more detailed information about 7650
disassembly and assembly in video clips, which are
located on Nokia Care Point sites.

to Nokia Care Point through Nokia Partner Web
Site (PWS).
Following instructions will show only the most
important steps in Disassembly procedure.

You have access

After removing Battery Cover and B-Cover use SRT 4
and SRT-5 opening tools for A-Cover and Grip Cover.

After the SRT-4 is taken away, the Grip Cover has to
be unlocked from the A-Cover.

Press the levers so, that the nails of SRT-4 are
between the covers and push it to the left forcefully.

Remove the Protection Foil from the flex foil
connector.

Use SRT-6 to open the connector carefully. Turn the
opening tool several times to pull up the connector.

Unscrew the two screws of the Keymat Cover. When
re-assembling, take care that the Battery Connector
fits well.

Service Manual 7650 Level 1&2 Copyright 2002 © Nokia Corporation

Nokia Mobile Phones Customer Care E&A
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Pull up the Keymat Cover and take it out to the left.

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Take off the Battery Connector from LS4 Module.

Gently press the edges of Keymat Cover and push off
LS4 Module from the Keymat Cover.

Acoustic Chamber, containing Camera Module and
SIM Connector can be taken away now.

Unscrew six T6 screws in the following order.

Assembly order is 3,4,5,6,1,2, with torque of
22Ncm.

To separate Chassis from A-Cover, SRT-6 can be used
to unlock the snaps on both sides along the edges.

Turn around the unit and take off the A-Cover.
Always protect windows and displays with

Remove Transceiver Keymat and unlock the Flexfoil
Connector carefully.

protection foil to avoid dust and scratches.

Service Manual 7650 Level 1&2 Copyright 2002 © Nokia Corporation

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Radio Module LG4 is fixed with four T5 screws.

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Take away the Radio Module from the Chassis.
Unscrew, using the shown order. Assembly order is
the same (22 Ncm for all screws).

Headset Jack, Earpiece and HF-Speaker can be easily
taken away. Note the guiding pins when assembling.

If you need to change Camera Module you can also
use SRT-6 for demounting.

When assembling the phone, all screws must be
tightened with a torque of 22 Ncm!
The GoNoGo test verifies that the electrical
specifications will be fulfilled.

Do not take the Microphone from the spring

contacts because it can fall apart.

Use an old charger socket to unlock the DC Jack

from the Grip Cover.

Service Manual 7650 Level 1&2 Copyright 2002 © Nokia Corporation

9. QUICK TROUBLE SHOOTER PART1

Service Manual 7650 Level 1&2 Copyright 2002 © Nokia Corporation

10. QUICK TROUBLE SHOOTER PART2

Service Manual 7650 Level 1&2 Copyright 2002 © Nokia Corporation

11. QUICK TROUBLE SHOOTER PART3

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12. ESD PROTECTION REQUIREMENTS

Electrostatic discharge can easily damage the sensitive components of
electronic products. Therefore every Service Partner has to take care of
at least some precautions like ESD restricted area, floor, table, covering,
chair(s), shoes or arm wrist.

Please refer to the Partner Web Site document

ESD protection requirements for NMP Service Level 1/2 Service Suppliers

example configuration of an epa-area

source: www.armeka.com

example workbench and testers

source: http://www.armekaengineering.com

example configuration of a workbench

source: www.warmbier.com

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13. SERVICE NOTES

We recommend using Service Notes when shipping phones to other Service Partners. It
prevents the product from scratches, it is ESD-neutral and has the possibility to give
valuable feedback of the fault symptom through a structured form.
Please refer to the document

Service Notes for faulty NMP transceiver

on Partner Web

Site to get further information.

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14. GONOGO TESTER

The Acterna/Wavetek GoNoGo Tester
has to be used to carry out the final
test after your service action to
guarantee the functionality of the
phone.

Please refer to the actual
information in the Nokia Care
Point Extranet within the Partner
Web Site.

15. BATTERYTESTER

The Astratec battery tester
lets you test the capacity
of Nokia batteries.

Please refer to the actual
information in the Nokia
Care Point Extranet
within the Partner Web
Site.

Service Manual 7650 Level 1&2 Copyright 2002 © Nokia Corporation