the prior written permission of Nokia is prohibited.
Nokia, Nokia Connecting People, and Nokia X and Y are trademarks or registered trademarks of Nokia
Corporation. Other product and company names mentioned herein may be trademarks or tradenames of their
respective owners.
Nokia operates a policy of continuous development. Nokia reserves the right to make changes and
improvements to any of the products described in this document without prior notice.
Under no circumstances shall Nokia be responsible for any loss of data or income or any special, incidental,
consequential or indirect damages howsoever caused.
The contents of this document are provided “as is”. Except as required by applicable law, no warranties of any
kind, either express or implied, including, but not limited to, the implied warranties of merchantability and
fitness for a particular purpose, are made in relation to the accuracy, reliability or contents of this document.
Nokia reserves the right to revise this document or withdraw it at any time without prior notice.
The availability of particular products may vary by region.
IMPORTANT
This document is intended for use by qualified service personnel only.
• IF THE DEVICE CAN BE INSTALLED IN A VEHICLE, 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.
• THE PRODUCT MUST NOT BE OPERATED IN AREAS LIKELY TO CONTAIN POTENTIALLY EXPLOSIVE ATMOSPHERES, FOR
EXAMPLE, PETROL STATIONS (SERVICE STATIONS), BLASTING AREAS ETC.
• 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.
• BEFORE MAKING ANY TEST CONNECTIONS, MAKE SURE YOU HAVE SWITCHED OFF ALL EQUIPMENT.
Cautions
• Servicing and alignment must be undertaken by qualified personnel only.
• Ensure all work is carried out at an anti-static workstation and that an anti-static wrist strap is worn.
• Ensure solder, wire, or foreign matter does not enter the telephone as damage may result.
• Use only approved components as specified in the parts list.
• Ensure all components, modules, screws and insulators are correctly re-fitted after servicing and alignment.
Ensure all cables and wires are repositioned correctly.
Use only approved components as specified in the parts list.
• Never test a mobile phone WCDMA transmitter with full Tx power, if there is no possibility to perform the
measurements in a good performance RF-shielded room. Even low power WCDMA transmitters may disturb
nearby WCDMA networks and cause problems to 3G cellular phone communication in a wide area.
• During testing never activate the GSM or WCDMA transmitter without a proper antenna load, otherwise GSM
or WCDMA PA may be damaged.
Nokia requires that service points have sufficient ESD protection (against static electricity) when servicing the
phone.
Any product of which the covers are removed must be handled with ESD protection. The SIM card can be replaced
without ESD protection if the product is otherwise ready for use.
To replace the covers ESD protection must be applied.
All electronic parts of the product 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 product or handling the product components must be done under
ESD protection.
ESD protected spare part packages MUST NOT be opened/closed out of an ESD Protected Area.
For more information and local requirements about ESD protection and ESD Protected Area, contact your local
This product is of superior design and craftsmanship and should be treated with care. The suggestions below
will help you to fulfil any warranty obligations and to enjoy this product for many years.
• Keep the phone and all its parts and accessories out of the reach of small children.
• Keep the phone dry. Precipitation, humidity and all types of liquids or moisture can contain minerals that
will corrode electronic circuits.
• Do not use or store the phone in dusty, dirty areas. Its moving parts can be damaged.
• Do not store the phone in hot areas. High temperatures can shorten the life of electronic devices, damage
batteries, and warp or melt certain plastics.
• Do not store the phone in cold areas. When it warms up (to its normal temperature), moisture can form
inside, which may damage electronic circuit boards.
• Do not drop, knock or shake the phone. Rough handling can break internal circuit boards.
• Do not use harsh chemicals, cleaning solvents, or strong detergents to clean the phone.
• Do not paint the phone. Paint can clog the moving parts and prevent proper operation.
• Use only the supplied or an approved replacement antenna. Unauthorised antennas, modifications or
attachments could damage the phone and may violate regulations governing radio devices.
All of the above suggestions apply equally to the product, battery, charger or any accessory.
Our policy is of continuous development; details of all technical modifications will be included with service
bulletins.
While every endeavour has been made to ensure the accuracy of this document, some errors may exist. If any
errors are found by the reader, NOKIA MOBILE PHONES Business Group should be notified in writing/e-mail.
Please state:
• 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 Business Group
Nokia Customer Care
PO Box 86
FIN-24101 SALO
Finland
E-mail: Service.Manuals@nokia.com
Note: A new battery's full performance is achieved only after two or three complete charge and
discharge cycles!
The battery can be charged and discharged hundreds of times but it will eventually wear out. When the
operating time (talk-time and standby time) is noticeably shorter than normal, it is time to buy a new battery.
Use only batteries approved by the phone manufacturer and recharge the battery only with the chargers
approved by the manufacturer. Unplug the charger when not in use. Do not leave the battery connected to a
charger for longer than a week, since overcharging may shorten its lifetime. If left unused a fully charged battery
will discharge itself over time.
Temperature extremes can affect the ability of your battery to charge.
For good operation times with Ni-Cd/NiMh batteries, discharge the battery from time to time by leaving the
product switched on until it turns itself off (or by using the battery discharge facility of any approved accessory
available for the product). Do not attempt to discharge the battery by any other means.
Use the battery only for its intended purpose.
Never use any charger or battery which is damaged.
Do not short-circuit the battery. Accidental short-circuiting can occur when a metallic object (coin, clip or pen)
causes direct connection of the + and - terminals of the battery (metal strips on the battery) for example when
you carry a spare battery in your pocket or purse. Short-circuiting the terminals may damage the battery or the
connecting object.
Leaving the battery in hot or cold places, such as in a closed car in summer or winter conditions, will reduce the
capacity and lifetime of the battery. Always try to keep the battery between 15°C and 25°C (59°F and 77°F). A
phone with a hot or cold battery may temporarily not work, even when the battery is fully charged. Batteries'
performance is particularly limited in temperatures well below freezing.
Do not dispose of batteries in a fire!
Dispose of batteries according to local regulations (e.g. recycling). Do not dispose as household waste.
RM-57/58
Nokia 6681/6682 Service Manual StructureNokia Customer Care
Nokia 6681/6682 Service Manual Structure
1 General Information
2 Parts Lists and Component Layouts
3 Service Software Instructions
4 Service Tools and Service Concepts
5 Disassembly/Reassembly Instructions
6 BB Troubleshooting and Manual Tuning Guide
7 RF Troubleshooting and Manual Tuning Guide
8 Camera Module Troubleshooting
9 System Module
10 Schematics
Product features and sales package.........................................................................................................................................1–5
Product and module list................................................................................................................................................................1–6
Mobile enhancements...................................................................................................................................................................1–7
Transceiver general specifications......................................................................................................................................1–8
Main RF characteristics for triple-band (EGSM900/1800/1900 and GSM850/1800/1900) phones..................1–8
Figure 1 View of RM-57..................................................................................................................................................................1–5
Nokia RM-57 is a tripleband handportable phone, supporting EGSM900/1800/1900 bands (RM-58: GSM850/1800/
1900).
According to GSM standard 05.05 it responds to class 4 (max. 2W) in EGSM900 (RM-58: GSM850 Power class 4
(2W)), class 1 (1W) in GSM 1800 and class 1 in GSM 1900. The device supports EGPRS (EDGE) class B as well as
Bluetooth 1.2 standard. The handset has a full phase 2 Type Approval and it complies with the GSM Type Approval.
It also has a full CE approval and FCC approval.
The device is an MMS (Multimedia Messaging Service) enabled phone with a large bright color display and an
integrated 1.3 megapixel (effective image size 1.23 megapixel) camera.
The MMS implementation follows the OMA MMS standard release 1.2.
WAP 2.0 compatible browser supports XHTML Mobile Profile (MP) and uses a TCP/IP stack to communicate with
a gateway in network.
The operating system is Symbian 8.0a, also supporting MIDP Java 2.0 & CLDC1.1, which provides a good platform
for 3rd party applications.
Figure 1 View of RM-57
Product features and sales package
Imaging
• Integrated 1.3 (effective 1.23) megapixel camera (1280 x 960 pixels) with smooth 6 x digital zoom and camera
activation and control slide
• Integrated Flash LED
• Active TFT colour display, 176 x 208 pixels, 262k colours
• 10 MB on-board user memory Hot swap reduced size memory card slot
Spare parts overview.....................................................................................................................................................................2–6
Parts lists............................................................................................................................................................................................2–7
Mechanical spare parts list.....................................................................................................................................................2–7
RM-57 component parts list (1LF_09a)...............................................................................................................................2–8
Variant parts for RM-58.........................................................................................................................................................2–38
Component layout - top (1LF_09a)....................................................................................................................................2–39
RM-57/58
Parts Lists and Component LayoutsNokia Customer Care
For Nokia product codes, please refer to the latest Service Bulletins on the Partner Website (PWS).
To ensure you are always using the latest codes, please check the PWS on a daily basis.