Nokia Customer Care SERVICE MANUAL [ Issue 3 NMP Part No. 9236345] MOBILE TERMINAL NHL-12 NOKIA 6620 Issue 3 COMPANY CONFIDENTIAL ISSUE 3 02/2005 Copyright © 2005 Nokia. All Rights Reserved.
Nokia Customer Care Amendment Record Sheet Amendment No Date Inserted By Comments Original issue 05/2004 J-AK Part no.9233023 Issue 2 10/2004 M. Hautaniemi Chapter 2: Parts list updated. Chapter 6: MCU self tests and XBUS troubleshooting figures updated. Issue 3 05/2005 OJuntunen Front page, ARS updated Issue 3 0352005 OJuntunen Chapter 2: Parts list. Reformatted, hl9_15 parts list and parts placement diagrams added Issue 3 05/2005 OJuntunen Chapter 3: SSW. Phoenix self test table p.
Nokia Customer Care Copyright © 2005 Nokia. All rights reserved. Reproduction, transfer, distribution or storage of part or all of the contents in this document in any form without the prior written permission of Nokia is prohibited. Nokia, Nokia Connecting People, and NHL-12 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 Customer Care Warnings and Cautions Please refer to the NHL-12 user guide for instructions relating to operation, care and maintenance including important safety information. Note also the following: Warnings: 1. 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.
Nokia Customer Care For your safety QUALIFIED SERVICE Only qualified personnel may install or repair phone equipment. ACCESSORIES AND BATTERIES Use only approved accessories and batteries. Do not connect incompatible products. CONNECTING TO OTHER DEVICES When connecting to any other device, read its user’s guide for detailed safety instructions. Do not connect incompatible products.
Nokia Customer Care Battery information Note that 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.
Nokia Customer Care Care and maintenance NHL-12 is a product 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.
Nokia Customer Care Company Policy 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.
Nokia Customer Care Table of Contents Issue 3 05/2005 1- General Information 2- Parts Lists & Component Layouts 3- Service Software Instructions 4- Service Tools 5- Disassembly & Assembly Instructions 6- Baseband Description & Troubleshooting 7- RF Description & Troubleshooting 8- Schematics COMPANY CONFIDENTIAL Copyright © 2005 Nokia. All Rights Reserved.
