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
Page 2
Nokia Mobile Phones Ltd.
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
Nokia Mobile Phones Ltd.
Page 3
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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Nokia Mobile Phones Ltd.
Issue 4 02/2002
PAMS Technical Documentation
Tuning Instructions
Equipment Setup for Testing Audio and Charging
DC Unit
Oscillator
NSM–3/3D
6.
7.
5.
2.
8.
9.
1. 3.
4.
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.
1.
6.
5.
2.
Item: Service accessory: Product code:
14.
12.
10.
9A.
7.
9B.
3.
4.
8.
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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Nokia Mobile Phones Ltd.
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!
Issue 4 02/2002
Nokia Mobile Phones Ltd.
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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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Nokia Mobile Phones Ltd.
Issue 4 02/2002
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