Nokia N770, SU18 Service Manual

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SU-18

Transceiver characteristics:

• Display: High-resolution (800x480) touch screen with up to
65,536 colors

• Bluetooth

• WLAN

• Connector:

o Mini USB

o 3.5mm stereo audio out

Transceiver with BP-5L 1500mAh Li-Ion battery pack

Browsing time Standby Note

3h 7 days

Depends on

network

parameters

Environmental characteristics:

• Lead-free soldered

SERVICE MANUAL

Service Level 1&2

Service Manual xxxx Level 1&2 Copyright © 2005 NOKIA Corporation. All rights reserved.

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TABLE OF CONTENT

Page

1. INTRODUCTION...................................................................................................................................................................................3

2. GENERAL REPAIR INFORMATION .....................................................................................................................................................4

3. PATHFINDER FOR WORKSHOP STAFF.............................................................................................................................................5

4. EXPLODED VIEW AND COMPONENT DISPOSAL.............................................................................................................................6

5. SPARE PARTS OVERVIEW ..................................................................................................................................................................7

6. SPARE PARTS LIST..............................................................................................................................................................................8

7. SERVICE TOOLS....................................................................................................................................................................................9

8. SW-UPDATE...................................................................................................................................................................................... 11

9. DISASSEMBLY INSTRUCTIONS ....................................................................................................................................................... 12

10. LEGEND FOR QUICK TROUBLE SHOOTER................................................................................................................................. 16

11. QUICK TROUBLE SHOOTER PART 1.......................................................................................................................................... 17

12. QUICK TROUBLE SHOOTER PART 2.......................................................................................................................................... 18

13. BLUETOOTH TEST ....................................................................................................................................................................... 19

14. GONOGO TEST ............................................................................................................................................................................. 20

15. BATTERY TEST............................................................................................................................................................................. 20

16. FORWARDING OF REPAIRS ....................................................................................................................................................... 21

17. ESD PROTECTION REQUIREMENTS........................................................................................................................................... 22

CHANGE HISTORY

Status Version No. Date Comments

Draft 0.1 24.05.2005 Initial draft
Approved 1.0 15.08.2005 Approved
Approved 2.0 29.09.2005 Minor changes in naming of keymats and Domesheets
Approved 3.0 29.08.2005 Disassembly instructions updated

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1. INTRODUCTION

The purpose of this document is to help NOKIA service levels 1 and 2 workshop technicians to carry out service to
NOKIA products. This Service Manual is to be used only by authorized NOKIA service suppliers, and the content of it
is confidential. Please note that NOKIA provides also other guidance documents (e.g. Service Bulletins) for service
suppliers, follow these regularly and comply with the given instructions.

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, please notify NOKIA using the address below:

mailto:[e-mail]

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:

CARE MUST BE TAKEN ON INSTALLATION IN VEHICLES FITTED WITH ELECTRONIC ENGINE

1.
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.
THE HANDPORTABLE TELEPHONE MUST NOT BE OPERATED IN AREAS LIKELY TO CONTAIN

2.
POTENTIALLY EXPLOSIVE ATMOSPHERES EG PETROL STATIONS (SERVICE STATIONS), BLASTING AREAS ETC.
OPERATION OF ANY RADIO TRANSMITTING EQUIPMENT, INCLUDING CELLULAR TELEPHONES, MAY INTERFERE

3.
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. Use only approved components as specified in the parts list.

4. Ensure all components, modules screws and insulators are correctly re–fitted after servicing and alignment.

5. Ensure all cables and wires are repositioned correctly.

Electrostatic discharge can easily damage the sensitive components of electronic products.
Therefore every Service Supplier has to take care of all precautions, which are mentioned in
the service level related “Service Partner Requirements”, available on NOKIA Online. Also see
ESD Protection Requirements in this Service Manual.

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2. GENERAL REPAIR INFORMATION

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

To familiarize oneself with NOKIA product read the tutorials or user guide on www.nokia.com -->Support-->

o

Phones, by selecting the Phone Model.

o

Before starting the repair you must take care of ESD precautions like being in your ESD Protected Area and
connecting your wristband.

o

Use gloves to avoid corrosion and fingerprints.

o

Protect windows and displays with a film to avoid dust and scratches.

o

When cleaning the LCD Module any lint-free cloth can be used (e.g. Micro-Fibre cloth).

o

When cleaning the pads you have to use a soft cloth/ESD brush 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 (except shielding lids and bent parts), which didn’t repair the failure, can be reused, if they
are not soldered.

o

When removing the shielding lids make sure to replace them with new ones, otherwise the high-frequency
leakage can have an influence on the device.

o Always use original NOKIA spare parts.
o Check the soldering joints of the parts, which are concerned regarding the indicated error (e.g. soldered

connectors or switches) and resolder them if necessary (Level 2 only).

o Remove redundant soldering flux after repair.
o Meet the torque requirements when assembling the unit (see also the document “torques for transceiver

assembly” on NOKIA Partner Web Site/NOKIA Online).

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.

o

A SIM card is needed for all GoNoGo tests.

o

When doing the fault log entries, always note the Item code, which caused the malfunction. Also, fill in the
appropriate part code from the assembly, if needed.

o

Please be aware that some malfunctions could be software related and solved by an update.

o There are several documents available on NOL, which have to be followed:

o First, take care for the latest content pages of Service Bulletins, which are always available for each folder on

NOKIA Online. This is also important to recognize, if existing documents have become invalid.

o The service level indicator at the bottom of each document tells the appropriate destination.

Downloads > Support Library >

1. Instructions

2. General Service Bulletins

3. Product related documents

4. Spare Part Service Bulletins

5. Service Tools Service Bulletins

6. Common Software Service Bulletins
etc,…

Use General SB-217 as a reference or overview.

Please also check NOKIA Online (NOL) for latest news and files on a regular basis.

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3. PATHFINDER FOR WORKSHOP STAFF

In addition to the information in this Service Manual, there are several instructions and information, which have to
be followed. Main documentation database is
content, like video clips or interactive tutorials.

It is mandatory to watch for newest technical and organizational information on a daily basis to be updated as
required (see “Latest files in Support Library”). Every new information has to be processed and implemented as
soon as possible.
When logged into NOL you can also find needed information in different folder like:

Support Library

Phones

Level 1&2 e-learning (former NOKIA CarePoint) on NOKIA Online

Former NOKIA CarePoint
content, such as

• Online Troubleshooting

• Product information

• Videos – Disassembly/Assembly

NOKIA Online with the purpose of serving different multimedia

Service Manuals
Service Bulletins
Software
Repair Information

can be found on

NOKIA Online

NOKIA Online

Care Services

Training

Phone Models

Level 1&2 e-learning courses offer a quick overview of the NOKIA phone and support for how to repair and use the
phone:

Overview & Guides

Basic information about the

phone, features and technologies

To reduce the server traffic it is recommended to download newest version of huge files like videos, Phoenix
packages or Service Manuals only once and distribute it internally for further use.

Disassembly & Assembly

Instructions how to disassemble

and assemble the phone

Step-by-step instructions on how to
locate and repair the most common

Troubleshooting

problems with the phone

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4. EXPLODED VIEW AND COMPONENT DISPOSAL

Recommendation for the ecologically friendly disposal of components. Colorized components show the different
categories. See corresponding ITEM/CIRCUIT REF in the Spare Parts Service Bulletins on NOL.

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5. SPARE PARTS OVERVIEW

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6. SPARE PARTS LIST

Please exchange this page (placeholder) with latest corresponding Service

Bulletins (spare parts, SWAP units and service tools) from NOL!

This will ensure, that you are using up-to-date order codes only.

Therefore Service Bulletins have to be checked from NOL on daily basis.

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7. SERVICE TOOLS

FLS-4S incl. ACF-8, Driver and User Guide
Dongle and flash device incorporated into one package,
developed specifically for POS use.

ACF-8
Universal Power Supply is used to power FLS-4S.

Internal Battery BP-5L
Inserted under the back cover, this Li-Ion 1500 mAh battery
provides power in a lightweight package.

Travel Charger AC-4
Small and lightweight charger for fast charging of your phone
battery.

DKE-2
USB- cable

Standard Stereo Headset
Standard Stereo Headset with 3,5mm plug.

RJ-78
Soldering Jig

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Lead-free Solder Wire
Mandatory for lead-free products (Level 2 only).

0772040 NMP Standard Toolkit

 NOKIA opening tool SRT-6 NOKIA No. 0770431
 Tonichi torque driver NOKIA No. 6901525

Hoya micro fibre cloth MX304




Dastex gloves S, M, XL
Artilux goggles AH166




Wera bit T5 867/4TX 5x50

 Wera 867/4 6IP; 50mm (Torx 6 PLUS®)
 Wera bit T6 867/4TX 6x50
 Wera 867/1 5IP; 25mm (Torx 5 PLUS®)
 Wera bit T6 PLUS® 867/4TX 6IP


Facom side cutter 416E

 Facom T5 driver SP.14032
 Facom T6 driver SP.14033
 Facom slot screwdriver AEF. 2x35.E


Wetec tweezers 7abb SA-ESD

 Wetec tweezers 22 SA-ESD
 Wetec tweezers 13 SA-SMD ESD
 Wetec tweezers PSF SA-ESD
 Wetec ESD brush E1211


Kaiser Fototechnik airbrush 6315

 Wetec dental tool DEM83266/0


RS Components Scissors 323-5732

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8. SW-UPDATE

Flash Concept – (Point of Sales)

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

NOKIA Online.

It is very important to follow this insertion and removal procedure, otherwise the contact pins of Flash Adapter

will be damaged.

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9. DISASSEMBLY INSTRUCTIONS

1.) Needed tools for disassembly and assembly.

3.) Do not use protection foil, as removing of the foil

may damage the touchpad. Take special care to the

Display Module during disassembly and assembly.

2.) Remove the C-Cover Assy.

4.) Push down the Battery Cover Release Button and
remove the Battery Cover. Always remove the battery
before continuing disassembly.

5.) Remove the Stylus.

7.) Remove the Screw Covers by using the dental tool.
Always use new Screw Covers when reassembling the
device.

6.) Two of five screws are covered with the Screw
Covers.

8.) Unscrew the five, Torx Plus® size 6 screws in the
shown order. For assembly, use the reverse order and

a Torx Plus

®

size 6 driver with a torque setting of

30Ncm.

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9.) Use a clean cloth when opening the A-Cover and B­Cover.

11.) Remove the Keymat Front and the Keymat Top.

Display Module needs to be supported all the time
when turning over the device!

10.) Remove the A-Cover Assy by twisting it from the
Fastening Cover.

12.) Release the clips of the Battery Holder carefully.

Note! It is not allowed to bend the Battery Holder
Metals.

13.) Remove the Frame Assy with the Engine Module
and the Display Module from the B-Cover.

14.) Unplug the Display Connector carefully with the
SRT-6.

15.) Release the Flex of the Display using a slotted
screwdriver.

16.) Unplug the Keymat Flex Connector carefully by
using the SRT-6.

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17.) The Engine Module is secured with three snaps to
the Frame Assy. Release the snaps carefully.

18.) Remove the Engine Module paying attention to
the Keymat Flex Connector.

19.) Remove the Microphone with the dental tool.

21.) Unlock the first snap. Push the Antenna Assy with
a slotted screwdriver and lift it using the SRT-6 as a
lever.

20.) Press out the DC-Jack by using DC-plug.

22.) Now, unlock the other side of the Antenna Assy.

23.) Remove the Antenna Assy carefully with tweezers.

24.) Remove the MMC Cover by pushing it out and
position it in the middle of its guidance.

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25.) Turn over the MMC Cover to 180° and remove it.

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10. 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 marked components ( e.g. I002

The start point of repair activities regarding the appeared fault symptoms.

Follow the arrows step by step

Pads or contacts: Check optical and mechanical condition particularly regarding
to corrosion. Clean if necessary.

Measure component for electrical functionality and change, if needed.
(Level 2 only)

Pads or contacts: Check optical and mechanical condition particularly regarding
to corrosion. Clean with ESD brush only, if necessary.

No more actions possible send product to the appropriate service supplier with
higher service level.

) can be changed.

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11. QUICK TROUBLE SHOOTER PART 1

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12. QUICK TROUBLE SHOOTER PART 2

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eation & Su

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13. BLUETOOTH TEST

Bluetooth test
You need another Bluetooth device (e.g. 6230) to do a GoNoGo test.
Make sure that Bluetooth is activated in the reference unit. The distance of the devices should be not more than
5m from each other.

Reference unit, Bluetooth /infrared activated Test unit

Settings on the test unit:

• Use the stylus and select the phone icon

the right upper side.

• Select phone

• Select Next to start the search modus

• Search window appears, if all Bluetooth devices in

range will be displayed, the test is successful!

• Press the Cancel button to reach the Home Menu.

on

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14. GONOGO TEST

After the optical check, a GoNoGo test has to be carried out if the unit has been unscrewed to guarantee the
functionality of the phone.

Please refer to the actual information on NOKIA Online. When using delivered tester support files, take care of the
right setup according to the tester type and product type.
Please refer to “Recommended Service Equipment” on NOKIA Online.

Mobile Phone Tester

15. BATTERY TEST

A battery tester lets you test the capacity of NOKIA batteries.

Please refer to the actual information on NOKIA Online.

http://www.astratec.co.uk/

Service Manual xxxx Level 1&2 Copyright © 2005 NOKIA Corporation. All rights reserved.

http://www.cadex.com/

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16. FORWARDING OF REPAIRS

When it is necessary to forward of repairs to appropriate service supplier with higher service level we recommend
using the offered swap phone cartons as described in Spare Parts SB-004.

Do not protect the Display Module of the NOKIA 770
Internet Table with a protection film!!!

Add repair documentation e.g. filled-in service note into
the swap carton.

Put the unit under the stretch film.

Fold the swap carton as shown in Spare Parts SB-004.

There are two different sizes of swap cartons for common mobile phones.

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17. ESD PROTECTION REQUIREMENTS

Please refer to the NOKIA Online document Service Supplier Requirements in folder General instructions.

USE Conductive bags and boxes
USE ESD compatible service tools
USE Conductive wastebaskets
USE ESD gloves when handling PWBs/PCBs
USE Cleaning material without changing el. Characteristics
USE Grounded service equipment, i.e. soldering station
USE ESD clothes such as coat or frock

The video covers general issues concerning Electro-Static Discharge (ESD)

NO Smoking
NO Drinking
NO Eating
NO Dust
NO Useless Items
NO Normal pressured air for cleaning

modules/displays

Service Manual xxxx Level 1&2 Copyright © 2005 NOKIA Corporation. All rights reserved.