Nokia 8550 Service Manual 07 nsm3tuning

PAMS Technical Documentation

NSM–3/3D Series Transceivers

Tuning Instructions

Issue 4 02/2002  Nokia Corporation

NSM–3/3D Tuning Instructions

CONTENTS

PAMS Technical Documentation

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Issue 4 02/2002

PAMS Technical Documentation

Tuning Instructions

General

All tuning operations 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 MBUS 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.

NSM–3/3D

Tuning Instructions

During tuning, proceed as follows:

– Take care not to damage sensitive measuring instruments with exces-

sive RF power.

– Carry out all tuning steps in the shortest possible time to avoid exces-

sive heating of RF units. – Perform all tuning steps in the order presented. – Never try to mask a fault by tuning it out!

Issue 4 02/2002

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NSM–3/3D Tuning Instructions

Required Equipment

– PC with service software; see separate section for instructions on

installation and use. – Service accessories; see equipment setup pictures. – Multimeter or DVM. – GSM radio telephone test station or separate measuring equipment as

follows:

– RF generator – pulse power meter – spectrum analyzer – attenuator and branching unit

Equipment Setup

PAMS Technical Documentation

Caution: Make sure that you have switched off the PC and the printer

before making connections !

Caution: Do not connect the PKD–1 key to the serial port. You may

damage your PKD–1 !

Attach the protection key PKD–1 to parallel port one (25–pin female D–connector) of the PC. When connecting the PKD–1 to the parallel port be sure that you insert the PC end of the PKD–1 to the PC (male side). If you use a printer on parallel port one, place the PKD–1 between the PC and your printer cable.

Next connect the M2BUS service cable, DAU–9S, to the serial port (RS–232) of the computer. Attach one end of the service cable to the PC serial port and the other end to the service box, JBU–6. For servicing the phone with the covers in place the service box should always be used.

When the phone covers are removed the jigs should be used.

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PAMS Technical Documentation

Tuning Instructions

Equipment Setup for Testing Audio and Charging

DC Unit

Oscillator

NSM–3/3D

1. 3.

Item: Service accessory: Product code: 1 Service Box JBU–6 0770153

2 RF Adapter RL6 for JBU–6 0770172 3 DC Power Cable PCS–1 0730012 4 Service MBUS Cable DAU–9S 0730108 5 DC–DC Cable SCB–3 0730114 6 Software protection key PKD–1 0750018 7 Audio Box JBA–6 0770184 8 Audio Cable ADS–3 0730197 5 Service SW diskette 3.5” for WinTesla 0774046 9 Service SW diskette 3.5” for NSM–3 (3D) 0774080

Issue 4 02/2002

Flash SW packages on CD 0775219

 Nokia Mobile Phones Ltd.

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NSM–3/3D Tuning Instructions

Flash Concept with JBU–6

PAMS Technical Documentation

11.

13.

Item: Service accessory: Product code:

14.

12.

10. 9A.

9B.

1 Service Box JBU–6 0770153 2 Flash Loading Adapter FLA–7 0080326 3 Flash Security Box TDF–4 0770106 4 Prommer FPS–4S 0085095 5 DC Power Cable PCS–1 for JBU–6 0730012 6 Service Cable XMS–3 0730174 7 D15 – D15 Cable AXS–5 0730091 8 Printer Cable (Included in FPS–4 sales pack) 0730029 9A D9 – D9 Cable AXS–4 0730090

(Included in FPS–4 sales pack) 9B D9 – D9 Cable AXS–4 0730090 10 DC Cable PCC–1B 0730053 11 Software protection key PKD–1 0750018 12 Service SW diskette 3.5” for NSM–3 (3D) 0774080

Service SW diskette 3.5” for WinTesla 0774046 13 Travel Charger ACH–6E (Euro) 0270381

Travel Charger ACH–6U (USA/Japan) 0270382

Travel Charger ACH–6X (UK) 0270380 14 AC Charger ACL–3E 0680015

(Included in FPS–4 sales pack)

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Issue 4 02/2002

NSM–3/3D

PAMS Technical Documentation

NOTE: Changes in Sales Packs

In FPS–4S sales pack ACL–3E will be replaced by AXD–1 power cable.This cable makes it possible to power the FPS–4 prommer with ACH–6 type charger. Same charger has been used to power TDF–4 Flash Security Box and it must be purchased separately.

AXD–1 power cable will be added to FLA–7 sales pack. This makes it possible to power FLA–7 from TDF–4 power output or separate ACH–6 type charger.

Tuning Instructions

Flash Concept Power Distribution Options

1. Two AXD–1 cables and two ACH–6 chargers – RECOMMENDED!

2. One ACH–6 and two ACL–3 chargers

1. Power distribution with two AXD–1 cables and two ACH–6 chargers: FLA–7 powered by AXD–1 cable from TDF–4 “Power Out” connector

(It is also possible to power FLA–7 with AXD–1 and

TDF–4 powered by ACH–6 Charger. FPS–4 powered by AXD–1 DC cable and ACH–6 Charger.

separate

ACH–6).

NOTE: Do not use SCF–7 cable to power FLA–7 and FPS–4 from one ACH–6 charger as done when using ACL–3!

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NSM–3/3D Tuning Instructions

2. Power distribution with one ACH–6 and two ACL–3 chargers: FLA–7 powered by ACL–3 charger

TDF–4 powered by ACH–6 charger FPS–4 powered by ACL–3 charger

PAMS Technical Documentation

NOTE: It is recommended to use separate power supplies for FLA–7 and FPS–4.

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