Nokia 3110 free download

File name 01-nhe8_app.pdf

Programmes After Market Services Appendix 1 Transceiver NHE­8 issue 2 11/97 NHE­8 Transceiver PAMS Technical Documentation Exploded View of Transceiver NHE­8 1 13 11 5 10 8 9 12 2 6 14 3 13 4 7 Page 2 issue 2 11/97 PAMS Technical Documentation NHE­8 Transceiver Assembly Parts Item 1 2 3 4 5 6 7 8 9 10 11 12 13 Qty 1 1 1 1 5 1 1 1 1 1 1 1 1 1 1 1 Code 0660126 5140057 5140059 0200883 6190003 9457740 9457746 9457748 9480336 9467013 9790240 9790242 0200886 5140055 9380115 9450581 NHE­8 Description ANTENNA HELICAL GSM 890­960MHZ MIC+SPRING+RUBBER ­42+­2DB 2.2K BUZZER+SPRING CONTACTS 90DB 25R GJ3 SYSTEM MODULE SCREW M1.6X6 DMD00525 T6 BLK A­COVER ASSY DMC00711 SIMPLEX B COVER ASSEMBLY DMC00673 HD844 LENS DMC00728 (see note below) LENS ADHESIVE (see note below A­SHIELD PLATED DMC00676 HD844 PRINTED KEYMAT DMC00686 SIMPLEX ON/OFF KEY PRINTED DMC00780 HD844 GU9 USER INTERFACE MODULE SPEAKER ASSY CONTINUOUS SHEET 50 4D21663 29X35 CONNECTOR COVER 3D25768 NHA­2NA Note : Order these parts together issue 2 11/97 Page 3 NHE­8 Transceiver PAMS Technical Documentation This page intentionally left blank. Page 4 issue 2 11/97

File name 02-nhe9_app.pdf

Programmes After Market Services Appendix 2 Transceiver NHE­9 issue 2 11/97 NHE­9 Transceiver PAMS Technical Documentation Exploded View of Transceiver NHE­9 1 13 11 5 10 8 9 12 2 6 14 3 4 7 Page 2 issue 2 11/97 PAMS Technical Documentation NHE­9 Transceiver Assembly Parts NHE­9 Item 1 2 3 4 5 6 7 8 9 10 11 12 13 Qty 1 1 1 1 5 1 1 1 1 1 1 1 1 1 1 1 Code 0660126 5140057 5140059 0200883 6190003 9457739 9457746 9457749 9480323 9467013 9790241 9790242 0200886 5140055 9380115 9450581 Description ANTENNA HELICAL GSM 890­960MHZ MIC+SPRING+RUBBER ­42+­2DB 2.2K BUZZER+SPRING CONTACTS 90DB 25R GJ3 SYSTEM MODULE SCREW M1.6X6 DMD00525 T6 BLK A­COVER ASSY DMC00670 FLAT J B COVER ASSEMBLY DMC00673 HD844 LENS DMC00672 (see note below) LENS ADHESIVE (see note below A­SHIELD PLATED DMC00676 HD844 PRINTED KEYMAT DMC00675 FLAT J ON/OFF KEY PRINTED DMC00780 HD844 GU9 USER INTERFACE MODULE SPEAKER ASSY CONTINUOUS SHEET 50 4D21663 29X35 CONNECTOR COVER 3D25768 NHA­2NA Note : Order these parts together issue 2 11/97 Page 3 NHE­9 Transceiver PAMS Technical Documentation This page intentionally left blank. Page 4 issue 2 11/97

File name carkit.pdf

Programmes After Market Services NHE­8/9 Carkit Installation Guides Car kit Installation Guide NHE­8/9 PAMS Technical Documentation NHE­8 INSTALLATION INSTRUCTIONS Contents Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Basic Car Kit (CARK­48) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Professional Car Kit (CARK­74) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Component Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 3 4 5 6 9 12 Page 2 issue 2 11/97 PAMS Technical Documentation Car kit Installation Guide NHE­8/9 Introduction General This installation guide has been prepared to provide the basic information necessary to install car kits. This guide is not intended to be definitive, because different types and models of vehicle will require different installation work. The information given is for general guidance only. The terms of warranty demand that this car kit be installed by an experienced installation facility. An end user should never attempt to install this car kit without professional assistance as the installation requires special tools and knowledge. Please refer to the telephone's user guide for instructions on the telephone's operation, care and maintenance, including important safety information. Note: Read the warnings below before beginning the installation procedure. WARNINGS 4 ENSURE THAT THE VEHICLE BATTERY IS DISCONNECTED BEFORE YOU START THE INSTALLATION PROCEDURE, AND THAT IT REMAINS DISCONNECTED DURING THE PROCEDURE. DO NOT SMOKE OR USE OPEN FLAMES WHEN WORKING NEAR THE VEHICLE'S FUEL SYSTEM. ENSURE THAT ELECTRICAL CABLES, HYDRAULIC LINES AND FUEL LINES ARE NOT DAMAGED DURING INSTALLATION. ENSURE THAT NORMAL CONTROL AND OPERATION OF THE VEHICLE IS NOT IMPAIRED BY THE INSTALLATION, PARTICULARLY THE BRAKES AND STEERING. ALTHOUGH ELECTRONIC SPEED CONTROL, ABS ANTI­LOCK BRAKE AND FUEL INJECTION SYSTEMS ARE RELATIVELY IMMUNE TO MALFUNCTION CAUSED BY NEARBY RADIO TRANSMISSIONS, SHOULD YOU EXPERIENCE FALSE OPERATION OF THESE SYSTEMS OR ARE IN ANY DOUBT WHATSOEVER AS TO THEIR FUNCTIONALITY, PLEASE CONSULT THE VEHICLE DEALER. THE CAR KIT IS SUITABLE FOR USE ONLY IN VEHICLES WITH A 11..32 V NEGATIVE GROUNDING. USE ON OTHER SUPPLY VOLTAGES OR ALTERNATIVE POLARITY WILL DAMAGE THE EQUIPMENT. THE PHONE SHOULD NOT BE LEFT SWITCHED ON FOR EXTENDED PERIODS WITHOUT RUNNING THE VEHICLE'S ENGINE. FAILURE TO COMPLY COULD DRAIN THE VEHICLE'S BATTERY. 5 6 7 8 9 10 issue 2 11/97 Page 3 3 Car

File name ch1frwd.pdf

Programmes After Market Services NHE­8/9 Series Transceivers Chapter 1 Foreword issue 2 11/97 NHE­8/9 Foreword PAMS Technical Documentation CHAPTER 1­ FOREWORD CONTENTS Page No Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Service Manual Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Company Policy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Warnings and Cautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Warnings: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cautions: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1­3 1­3 1­4 1­4 1­4 1­5 Page 1 ­ 2 issue 2 11/97 PAMS Technical Documentation NHE­8/9 Foreword Introduction Service Manual Structure The service manual is structured as follows:­ The 'core' service manual Chapter 1: Foreword Chapter 2: Chapter 3: Chapter 4: General Information System Module UIF Modules The core section of the service manual describes those areas of the NHE­8/9 series handportable phone which are common to all variants. This includes performance specifications and detailed descriptions of each module including common pcb parts lists. (this may be part of an appendix if it is specific to a variant) Appendicies to the core manual Transceiver variants The appendix sections of the service manual describes variants of the NHE­8/9 series handportable phone including an exploded view of the mechanics, any specific pcb parts lists. Service Software ­ Users guide Tuning Instructions ­ Setups fo tuning Service Tools ­ Pictorial views of tools used. Disassembly / Troubleshooting ­ Diagrams and faultfinding flow charts. Non­ serviceable Accessories ­ pictorial views only. PHF­3 Service Booklet ­ Handsfree unit Car Installation Guide ­ Procedures for vehicle installation FPS­4 Flash Programmer user guide Note: In printed manuals all A3 drawings are located at the back of the binder. IMPORTANT This document is intended for use by qualified service personnel only. issue 2 11/97 Page 1 ­ 3 NHE­8/9 Foreword PAMS Technical Documentation 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 Ltd should be notified in writing. 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 Mobile Phones Ltd After Sales Technical Documentation PO Box 86 24101 SALO Finland Page 1 ­ 4 issue 2 11/97 PAMS Technical Documentation NHE­8/9 Foreword Warnings and Cautions

File name ch2gen.pdf

Programmes After Market Services NHE­8/9 Series Transceivers Chapter 2 General Information issue 2 11/97 NHE­8/9 General Information PAMS Technical Documentation CONTENTS Page No Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Product and Module List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . General Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Transceiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Receiver Branch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Transmitter Branch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2­3 2­3 2­4 2­4 2­5 2­5 2­5 2­6 Page 2 ­ 2 issue 2 11/97 PAMS Technical Documentation NHE­8/9 General Information Introduction This chapter contains a list of products/modules together with their associated order codes, and details of the technical specifications for the Transceiver; these specifications are split into general, transmitter and receiver functions. The NHE­8/9 are handportable cellular phones for the pan­European GSM network. They have a GSM phase 1 power class 4 transceiver providing 11 power levels with a maximum output power of 2W. The basic handportable package offers the user a standard battery pack and travel charger for charging from mains. Accessories and other options are listed in the table below. Modules and Accessories Modules Unit/type: Transceiver NHE­8 Transceiver NHE­9 GJ3 System Module GU9 UIF Module MNHE8 Mechanical Assembly MNHE9 Mechanical Assembly Product code: Module code: 0500810 0500811 0200883 0200886 0261117 0261118 Accessories All accessories are deemed non­serviceable unless stated Standard Battery BMH­1 Extended Battery BLJ­4 Fast Travel Charger ACH­6X (UK) Fast Travel Charger ACH­6E (EUR) Fast Travel Charger ACH­6A (AUS) Fast Travel Charger ACH­6U (US) Universal Mobile Charger LCH­6 Desktop Stand CGD­8 External Antenna Unit for Data AAH­1D PCMCIA Card DTP­2C Data Cable DLH­5 Data Cable DAU­4F I.R.Link Module JLP­1 I.R.Connector JLC­1 0730059 0730056 0750079 0750078 0670199 0670190 0675087 0675084 0675086 0675085 0675076 0675156 0750077 issue 2 11/97 Page 2 ­ 3 NHE­8/9 General Information Headset Adapter HDA­4 Headset HDC­2 Fixed Mobile Charger LCM­1 Power Cable for above PCM­5 Handsfree unit PHF­3 PAMS Technical Documentation 0694042 0694017 0675077 0730058 serviceable Mobile Accessories Mobile Holder MBT­5 Handsfree Unit PHF­3 · HF/charger module DC9 · mechanics MPHF3 Power Cable PCH­4J HF Microphone HFM­7 HF Speaker HFS­9 Mounting Plate MKE­7 Swivel Plate HHS­7 Pow

File name ch3sys.pdf

Programmes After Market Services NHE­8/9 Series Transceivers Chapter 3 System Module issue 2 11/97 NHE­8/9 System Module PAMS Technical Documentation CONTENTS Page No Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Modes of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Circuit Description Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Power Distribution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Baseband Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Keyboard Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Keyboard and Display Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Audio Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Internal Audio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . External Audio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . RFI2, N450 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SIM Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . RF Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Technical Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . External Signals and Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Main Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Receiver Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Transmitter Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Synthesizers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Antenna selection switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . System Modul

File name ch4uif.pdf

Programmes After Market Services NHE ­8/9 Series Transceivers Chapter 4 Uif Module issue 2 11/97 NHE ­8/9 Uif Module PAMS Technical Documentation CONTENTS Page No Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Functional Circuit description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Power on/off key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Keypad switch matrix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Liquid crystal display module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Back light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Keypad back light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . LCD back light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Buzzer driver circuitry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Microphone and speaker connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Board to board connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . External Signals and Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Uif Module ­ GU9 _08 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Uif Module ­ GU9_10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4­5 4­5 4­5 4­6 4­7 4­7 4­7 4­7 4­8 4­8 4­8 4­9 4­9 4­9 4­12 4­12 4­14 Page 4 ­ 2 issue 2 11/97 PAMS Technical Documentation NHE ­8/9 Uif Module List of Figures Page No Figure 1. Power Distribution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 2. Keypad switches ­ Simplex or Flat­J . . . . . . . . . . . . . . . . . . . . . Figure 3. System board connection pads, order of numbering. . . . . . . . . Figure 4. LCD module identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Note: In printed manuals all A3 drawings are located at the back of the binder. 4 ­5 4 ­6 4­10 4­11 GU9 _08 Figure 5 UIF Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 6 UIF Component Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GU9 _10 Figure 7 UIF Component Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 8 UIF Circuit Diagram . . . . . . . . . . . . . .

File name disfault.pdf

Programmes After Market Services NHE­8/9 Series Transceivers Disassembly & Troubleshooting issue 2 11/97 NHE­8/9 Disassembly & Troubleshooting PAMS Technical Documentation CONTENTS Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . System Module Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Phone is totally dead . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Flash programming doesn`t work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Power doesn`t stay on or the phone is jammed . . . . . . . . . . . . . . . . . . . . Display information: Contact service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Phone doesn`t register (no serv) or doesn`t make a call . . . . . . . . . . . . SIM Card is out of order (insert SIM card or card rejected) . . . . . . . . . . Audio fault . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Charging fault . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . UIF Module troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . UIF­ connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . LCD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Microphone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Earpiece . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Buzzer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Keyboard and display LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 4 4 4 5 6 9 11 12 14 17 19 20 20 20 20 20 20 21 Page 2 issue 2 11/97 PAMS Technical Documentation NHE­8/9 Disassembly & Troubleshooting Disassembly 1 Remove battery 2 Remove 6 screws from the chassis 4 Remove the A cover 3 Remove 3 screws from the shield 5 Remove the shield 6 Re­assemble in reverse order issue 2 11/97 Page 3 NHE­8/9 Disassembly & Troubleshooting PAMS Technical Documentation Troubleshooting General The purpose is to define the faulty module block, and then to locate the faulty component. The trouble shooting diagram has been planned so that the fault, whatever it is, can be found by as simple measurements as possible. The flow charts give you the overview of the blocks. The purpose is that you proceed through the flow diagram so that, if your answer is YES for the asked question, g

File name fps-4_ps.pdf

Programmes After Market Services NHE­8/9 Series Transceivers FPS­4 Flash Programmer issue 2 11/97 NHE­8/9 FPS­4 Flash Programmer PAMS Technical Documentation CONTENTS General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Equipment Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Installing Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Faults On Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Using the Prommer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . User Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Programming in case of Memory Failiure or Loss . . . . . . . . . . . . . . . . . . 3 3 4 5 7 8 15 16 Page 2 issue 2 11/97 PAMS Technical Documentation NHE­8/9 FPS­4 Flash Programmer General Together with a telephone specific adapter, the FPS­4 Prommer permits updating of the basic software, i.e. programming the flash memory on the NHE­8/9 cellular telephone. The Flash Prommer is operated by means of separate DOS software installed on the PC hard disk before use. All interconnection cables necessary for connecting the unit to the PC are contained in the Prommer sales package. Notes : · FPS­4 CANNOT BE USED to program NHE­1/3/4 phone; neither can an older, FPS­3 Prommer used to program NHE­8/9 phone. · Prommer program FPS4.EXE does not work under Windows. · NEVER DISCONNECT FLA­6 OR SCS­4D FROM PHONE DURING PROGRAMMING! Equipment Required · IBM compatible PC, processor 80286 or faster, approx. 1 Mb free hard disk space, at least 400 kbytes RAM, a free serial port (COM1 ­ CO M4), a free parallel port (LPT1 ­ LPT3), operating system MS­DOS 5.00 or later (3.X sufficient on manual installation). FPS­4 Flash Prommer with cabling. DC power supply 9­14 V for FPS­4; e.g. ACS­2. FLA­6 Flash adapter for NHE­8 and NHE­9 phones. SCS­4D Power cable for NHE­8 and NHE­9 phones. Regulated 6 V power supply for SCS­4D. FPS­4 program. MCU diskette for NHE­8, MCU diskette for NHE­9. · · · · · · · issue 2 11/97 Page 3 NHE­8/9 FPS­4 Flash Programmer PAMS Technical Documentation Connections ACS­2 6 Volt DC Power Supply Serial Port PC Printer Port SCS­4D FLA­6 Parallel input Serial input PWR 9­14V DAU­2 Phone connector FPS­4 Connecting FPS­4 Notes: · As against earlier practice, a parallel cable can be connected also to printer port LPT2 or LPT3. · It is also possible to hold the PKD­1 protection key ("dongle") at the printer port at the same time. · PC serial port can be selected freely between COM1 and COM4. With older serial port drivers (8250 UART), there may be problems in data transmission

File name frontsec.pdf

Programmes After Market Services SERVICE MANUAL [NMP Part No.0275322] NHE­8/9 SERIES CELLULAR PHONES MOBILE PHONES issue 2 11/97 Copyright E 1997. Nokia Mobile Phones. All Rights Reserved. Programmes After Market Services NHE­8/9 SERVICE MANUAL ORDER FORM To the ...(Business Area) Please indicate on the form below your Service Manual reqirement. Booklet NHE­8/9SERIES SERVICE MANUAL COMPLETE ASSEMBLY NMP Part Number 0275322 Total number of Service Manuals required:... Against Purchase Order Number:... Name: Signed: Please return to: Position: Date: Barry F Gibbons (After Sales Documentation Manager) NMP Camberley Fax + 44 276 64478 Email [email protected] issue 2 11/97 Copyright E 1997. Nokia Mobile Phones. All Rights Reserved. Programmes After Market Services AMENDMENT RECORD SHEET Amendment Number Issue 2 Date Nov 1997 Inserted By A. Ashton Comments See details of changes below ISSUE 2 Changes All Sections 1. Foreword 2. General information. 3. System module Schematics Parts lists 4. UIF module Schematics Parts lists Tuning Instructions Non serviceable Accessories Car installation guide FPS­4 Programmer PAMS headers added Service Manual Structure updated Modules and Accessories re­formatted Contents pages updated GJ3_10 added GJ3­10 added Contents pages updated GU9_10 added GU9_10 added amendment included added booklet added booklet added booklet issue 2 11/97 Copyright E 1997. Nokia Mobile Phones. All Rights Reserved.

File name gj3v10__.pdf

GJ3 Version 10 Figure 24 Component Layout Top NHE 8/9 issue 2 11/97 Page3­A16 GJ3 Version 10 Figure 25 Component Layout Bottom NHE 8/9 issue 2 11/97 Page3­A17 GJ3 Version 10 Figure 26 System Block Diagram NHE 8/9 issue 2 11/97 Page3­A18 GJ3 Version 10 Figure 27 RX/TX Block Diagram NHE 8/9 issue 2 11/97 Page3­A19 GJ3 Version 10 Figure 28 RX Circuit Diagram NHE 8/9 issue 2 11/97 Page3­A20 GJ3 Version 10 Figure 29 TX Circuit Diagram NHE 8/9 issue 2 11/97 Page3­A21 GJ3 Version 10 Figure 30 Baseband Circuit Diagram NHE 8/9 issue 2 11/97 Page3­A22 GJ3 Version 10 Figure 31 Audio Circuit Diagram NHE 8/9 issue 2 11/97 Page3­A23 GJ3 Version 10 Figure 32 CPU Circuit Diagram NHE 8/9 issue 2 11/97 Page3­A24 GJ3 Version 10 Figure 33 DSP Circuit Diagram NHE 8/9 issue 2 11/97 Page3­A25 GJ3 Version 10 Figure 34 Keyboard / Display Interface NHE 8/9 issue 2 11/97 Page3­A26 GJ3 Version 10 Figure 35 MCU Circuit Diagram NHE 8/9 issue 2 11/97 Page3­A27 GJ3 Version 10 Figure 36 Power Supply / Charging Circuit Diagram NHE 8/9 issue 2 11/97 Page3­A28 GJ3 Version 10 Figure 37 BB / RF Analog Interface NHE 8/9 issue 2 11/97 Page3­A29 GJ3 Version 10 Figure 38 System Connector Circuit Diagram NHE 8/9 issue 2 11/97 Page3­A30

File name gj3v9_ps.pdf

GJ3 Version 09 Figure 9 Component Layout Diagram Top ­ NHE­8/9 issue 2 11/97 Page 3­A1 GJ3 Version 09 Figure 10 Component Layout Diagram ­ Bottom NHE­8/9 issue 2 11/97 Page 3­A2 GJ3 Version 09 Figure 11 SYSTEM Block NHE­8/9 issue 2 11/97 Page 3­A3 GJ3 Version 09 Figure 12 RX/TX Block NHE­8/9 issue 2 11/97 Page 3­A4 GJ3 Version 09 Figure 13 RX NHE­8/9 issue 2 11/97 Page 3­A5 GJ3 Version 09 Figure 14 TX NHE­8/9 issue 2 11/97 Page 3­A6 GJ3 Version 09 Figure 15 Baseband NHE­8/9 issue 2 11/97 Page 3­A7 GJ3 Version 09 Figure 16 Audio NHE­8/9 issue 2 11/97 Page 3­A8 GJ3 Version 09 Figure 17 CPU NHE­8/9 issue 2 11/97 Page 3­A9 GJ3 Version 09 Figure 18 DSP Memory Blocks NHE­8/9 issue 2 11/97 Page3­A10 GJ3 Version 09 Figure 19 Keyboard /Display interface NHE­8/9 issue 2 11/97 Page 3­A11 GJ3 Version 09 Figure 20 MCU memory Block NHE­8/9 issue 2 11/97 Page3­A12 GJ3 Version 09 Figure 21 Power Supply & Charging NHE­8/9 issue 2 11/97 Page3­A13 GJ3 Version 09 Figure 22 BB/RF Analog Interface NHE­8/9 issue 2 11/97 Page3­A14 GJ3 Version 09 Figure 23 System Connector NHE­8/9 issue 2 11/97 Page3­A15

File name gu9v10__.pdf

GU9 Version 10 Figure 7 UIF Component Layout NHE 8/9 issue 2 11/97 Page 4­A3 GU9 Version 10 Figure 8 UIF Circuit Diagram NHE 8/9 issue 2 11/97 Page 4­A4

File name gu9v8_ps.pdf

GU9 Version 08 Figure 5 UIF Schematic NHE­8/9 issue 2 11/97 Page 4­A1 GU9 Version 08 Figure 6 UIF Component Layout NHE­8/9 issue 2 11/97 Page 4­A2

File name nsaccs__.pdf

Programmes After Market Services NHE­8/9 Series Transceivers Non Serviceable Accessories issue 2 11/97 NHE­8/9 Non Serviceable Accessories PAMS Technical Documentation CONTENTS Batteries for NHE­8/9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Battery Pack BLJ­1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Battery Pack BLJ­4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Battery Pack BMH­1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Battery Pack BMH­1V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Chargers for NHE­8/9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Fast & Light Charger ACH­6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Universal Mobile Charger LCH­6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Fixed Mobile Charger LCM­1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Power Cable PCM­5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Desktop Stand CGD­8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Handsfree Headset Kit HDXK­8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Headset Adapter HDA­4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Headset Adapter HDC­2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Data accessories for NHE­8/9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Data Card DTP­2 ver II . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Infra Red Data Link JLC­1 and JLP­1 . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 3 4 5 6 7 7 8 9 10 11 12 12 13 14 14 14 Page 2 issue 2 11/97 PAMS Technical Documentation NHE­8/9 Non Serviceable Accessories Batteries for NHE­8/9 Battery Pack BLJ­1 The BLJ­1 is a Li­ion light battery back to provide an acceptable level of performance in a package (ie including phone) weighing 146 g. Product Code Battery pack BLJ­1: Specification Dimensions (h x w x d): Weight: Capacity: 0670189 (Made in Japan) 120 x 42 x 10 mm 48 g 400 mAh issue 2 11/97 Page 3 NHE­8/9 Non Serviceable Accessories PAMS Technical Documentation Battery Pack BLJ­4 The BLJ­4 Li­ion extended battery pack provides the best compromise between high performance and low weight. The extended package (including phone) weighs 204 g. Product Codes Battery pack BLJ­4 Specification Dimensions (h x w x d): Weight: Capacity: :0670190 (Made in Japan) 120 x 42 x 22 mm 106 g 1500 mAh Page 4 issue 2 11/97 PAMS Technical Documentation NHE­8/9 Non Serviceable Accessories Battery Pack BMH­1 The BMH­1 Ni­MH standard battery pack provides the best compromise between weight, price and perf

File name phf3a3_p.pdf

PAMS Technical Documentation Circuit Diagram of DC9, SMPS and control circuits (Version: 8.0 Edit: 145) Compact Handsfree Unit PHF­3 issue 2 11/97 Page 19 PAMS Technical Documentation Circuit Diagram of DC9, audio and mic amplifiers (Version: 8.0 Edit: 24) Compact Handsfree Unit PHF­3 issue 2 11/97 Page 20

File name phf3_ps.pdf

Programmes After Market Services COMPACT HANDSFREE UNIT PHF­3 issue 2 11/97 Compact Handsfree Unit PHF­3 NHE­8/9 After Sales Technical Documentation COMPACT HANDFREE UNIT PHF­3 Contents NO TAG NO TAG NO TAG NO TAG NO TAG NO TAG NO TAG NO TAG NO TAG NO TAG Introduction General Technical Summary Operation List of Modules Basic Specifications Modes of Operation External Signals and Connections Circuit Description Block Diagram Audio Interface Power Supply Microphone Amplifier Xear Amplifier Volume Control and Mute Speaker Amplifiers Charger Control Circuit (MCU) External I/O and AD­converters Connectors Input Protection Circuit Diagram of DC9 Circuit Diagram of DC9 Layout Diagram of DC9 (version 07) Parts List of DC9 (EDMS Issue 8.2) Exploded View of PHF­3 Assembly Parts NO TAG NO TAG NO TAG NO TAG NO TAG NO TAG NO TAG NO TAG NO TAG NO TAG Page 7 Page 7 Page 7 Page 7 Page 7 Page 7 Page 8 Page 8 Page 8 Page 8 Page 8 NO TAG NO TAG NO TAG NO TAG NO TAG NO TAG NO TAG NO TAG NO TAG NO TAG NO TAG NO TAG Page 2 issue 2 11/97 After Sales Technical Documentation Compact Handsfree Unit PHF­3 NHE­8/9 Introduction General The PHF­3 is a handsfree unit for handportable (NHE­6 and NHK­6) phones. It provides rapid charging for the phone and a possibility to use HF­operation. The PHF­3 cannot be connected directly to the phone but via the external antenna unit AAH­1D and mobile holder MBT­5 or other devices that provide the HF connector. Technical Summary Operation The PHF­3 has external connections to car battery, ignition sense, car radio muting, external microphone and external speaker. The unit has a HF­connector that provides an interface to the phone via external antenna unit. The connection can be made directly or using the extension cable between PHF­3 and AAH­1D. There is also an internal speaker inside the handsfree unit. The unit consists of a switching mode rapid charger, HF­speaker and HF­microphone amplifiers, volume control circuit, voltage regulators, control circuit (microprocessor) and a CAP compatible interface. The PHF­3 is always connected to the car battery. To save the car battery, PHF­3 goes in to the sleep mode if the car is not running and/or the phone is not connected. List of Modules Name of Module: HF speaker module DC9 0200656 Assembly parts MPHF­3 0260681 Material Code: Basic Specifications Function: Input voltage Current consumption Power source 11.3 ... 16 V 2 A dc max car battery Value: Page 3 Compact Handsfree Unit PHF­3 NHE­8/9 After Sales Technical Documentation Modes of Operation Phone not connected (sleep mode): When the phone is not connected the current consumption of the device has been minimized. The switching mode power supply (SMPS) and audio circuits has been turned off. PHF­3 is only waiting a phone to be connected. Phone connected (active mode): When the phone is connected to the PHF­3 it goes into the active mode. In the active mode the device provides charging current to the phone via SMPS. It also

File name servsoft.pdf

Programmes After Market Services Service Software User Guide NHE­8/9 MOBILE PHONES issue 2 11/97 Service Software User Guide NHE­8/9 PAMS Technical Documentation CONTENTS ­ Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Minimum Required Servicing Equipment . . . . . . . . . . . . . . . . . . . . . . . . . Mechanical Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Start Up Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Introduction to Service Software Package User Interface . . . . . . . . . . . . . . Service Software/Hardware Environment . . . . . . . . . . . . . . . . . . . . . . . . . Service Software Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Common Properties of the User Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . Login Dialog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Main Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Menu Bar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Mouse Cursors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Reserved Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Help Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Dialog boxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Reporting Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Specific Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Menu Bar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Initialization File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Appendix 1, Vocabulary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 3 3 5 5 5 6 6 7 8 9 13 14 16 16 19 19 20 20 56 57 Page 2 issue 2 11/97 PAMS Technical Documentation Service Software User Guide NHE­8/9 Introduction NHE­8/9 Service Software is specially designed to facilitate the servicing of sixth generation cellular telephones. The software can be used to control the phone according to the user's requirements merely by entering commands via the keyboard / mouse of a PC connected to the phone. This section refers to GSM Service Software Version 1.2. NMP After Sales will notify service personnel about future upgrades via Technical Bulletins. So

File name servtool.pdf

Programmes After Market Services NHE­8/9 Series Transceivers Service Tools issue 2 11/97 NHE­8/9 Service Tools PAMS Technical Documentation CONTENTS Page No Service Box JBU­4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MBUS Cable DAU­4S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PC/MBUS Adapter DAU­2T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D9/D25 RS­232 Adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Service Cable Assy. SCS­4D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Audio Cable ADS­1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Power Connector PCS­1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Module Jig JBS­18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SW Security Device "Dongle" PKD­1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . Flash Prommer FPS­4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Light Flash Prommer FPS­6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Flash Interface Box FLA­6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . System Cable SCH­3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 3 4 5 5 6 7 7 8 9 9 10 11 Page 2 issue 2 11/97 PAMS Technical Documentation NHE­8/9 Service Tools Service Box JBU­4 Service box provides convenient test enviroment (regulated power supply, M2BUS, preset battery reference voltage, external RF connection; not used in NHE­5/NHK­5, audio test loops) in one box. Product Code Service Box JBU­4: View of JBU­4 0770041 MBUS Cable DAU­4S DAU­4S is connected between the phone and the serial (COM) port of the PC. It matches the MBUS data bus signals to the serial data bus of the computer. Product code MBUS Cable DAU­4S: 0730057 issue 2 11/97 Page 3 NHE­8/9 Service Tools View of DAU­4S PAMS Technical Documentation PC/MBUS Adapter DAU­2T DAU­2T can be used instead of DAU­4S as RS232 to MBUS converter. Product Code PC/MBUS Adapter DAU­2T: View of DAU­2T 0750006 Page 4 issue 2 11/97 PAMS Technical Documentation NHE­8/9 Service Tools D9/D25 RS­232 Adapter Suitable adapter between DAU­2T and computers having 9 pin D connector as a serial port. Product Code D9/D25 RS­232 Adapter: View of Adapter 4626170 Service Cable Assy. SCS­4D Service cable Assy. SCS­4D contains two submodules: S S SCS­4B Service cable SH­11 Battery connection module The SCS­4D contains a switch which will make it possible to shift between testmode and the dummy battery mode at the BTEMP terminal. Product code Service Cable Assy SCS­4D: 0730116 issue 2 11/97 Page 5 NHE­8/9 Service Tools View of SCS­4D SH­11 PAMS Technical Documentation SCS­4B Audio Cable ADS­1 Audio cable is an adapter

File name tuning.pdf

Programmes After Market Services NHE­8/9 TUNING INSTRUCTIONS issue 2 11/97 NHE­8/9 Tuning Instructions PAMS Technical Documentation Contents Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Required Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Equipment Setup for Tuning a Phone without Removing Covers . . . . . Equipment Setup for Tuning a Phone with Covers Removed . . . . . . . . Starting The Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Tuning Steps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1. RSSI Reference Signal Level Storage . . . . . . . . . . . . . . . . . . . . . . . . . 2. AFC Diagram Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3. I/Q Modulator Amplitude Balance and Phase Shift Tuning . . . . . . . . 4. Tuning of Transmitter Power Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . 5. Charge Voltage Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6. Battery Voltage Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7. LCD Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 3 Page 3 Page 3 Page 5 Page 6 Page 7 Page 7 Page 7 Page 7 Page 8 Page 9 Page 10 Page 10 Page 10 Page 2 issue 2 11/97 PAMS Technical Documentation NHE­8/9 Tuning Instructions Introduction General In contrast to earlier second­generation analog cellular phones almost all tuning operations of the NHE­8/9 are carried out using the service software. The service software turns the phone into the locals mode, in which the phone can be outwardly controlled via the M2BUS interface. Tuning is based on the software communicating with the D/A and A/D converters of the phone. In some instances the phone processor will also calculate the required correction parameter. The tuning values of the phone reside on the EEPROM. The contents of the EEPROM can be read by the service software and saved as a file. This is advisable when there is need to retain that information, e.g. in view of replacement of the circuit. The program also enables writing the default parameters on the EEPROM, in which case all tuning steps should be carried out. N.B. During tuning, proceed as follows: ­ Take care not to damage sensitive measuring instruments with excessive RF power. ­ Carry out all tuning steps in the shortest possible time to avoid excessive heating of RF units. ­ Perform all tuning steps in the order presented. ­ Never try to mask a fault by tuning it out! Required Equipment ­ PC/AT computer with service software; see separate section for instructions on installatio