Nokia 6090 Service Manual jbd2

Programme’s After Market Services

NME–3 Series Transceivers

JBD–2 User Guide

Issue 1 10/99

NME–3

PAMS

JBD–2 User Guide

Technical Documentation

Contents

Introduction 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Common Functional Description 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Technical Description 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operation Mode TEST 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operation Mode FLASH 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operation Mode FLS1 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Power Distribution Diagram 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Control Unit (EPLD) Description 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Remote Interface 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Page No

Technical Specification 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DC Characteristics 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

External Signals and Connections 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Abbreviations 27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Test Sequence of RS232 CTRL–lines 27. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Repair setup 28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Flash setup 28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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JBD–2 User Guide

List of figures

Figure 1. Front Panel Map 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 2. Rear Panel Map 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 3. Routed audio path in Test mode 8. . . . . . . . . . . . . . . . . . . . . . . . .

Figure 4. Routed audio path in HS path 9. . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 5. Routed audio path in HF path 10. . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 6. Routed audio path in MicSpk 11. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 7. Routed audio path in HF Line 11. . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 8. Routed audio path in HS test 12. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 9. AMC Circuit 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 10. CRM Circuit 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 11. IGNS Circuit 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 12. PWM Circuit 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 13. RS232 Test Circuit 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 14. Old Flash concept 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 15. New Flash concept 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 16. Power Distribution 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 17. Simplified Block Diagram of EPLD 20. . . . . . . . . . . . . . . . . . . . . . .

Figure 18. Remote Interface 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 19. Repair setup 28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 20. Flash setup 28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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Technical Documentation

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Introduction

JBD–2 is used to test the NME–3 in the Service Center. It is possible to
use the JBD–2 for testing, analyzing, repairing, and fault logging of the
Radio Unit (RU) and the Handset (HS).

JBD–2 User Guide

JBD–2 is an interface between the phone and the computer when
WinTesla service software is running.

With the JBD–2, it is possible to simulate a normal call, to check all
interfaces are working and to run a final test via WinTesla service
software. The JBD–2 will test all the hardware (HW) interfaces that can
not be checked by using WinTesla.

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JBD–2 User Guide

Common Functional Description

In the Test Interface Box (JBD–2), the different audio signal paths are
switched with relays. The actual setting is displayed with LED’s. In
addition the original handsfree equipment can be connected.

Two VDA–signals (IGNS and BLD) will be set from the JBD–2. The AMC
and CRM signals are tested from the JBD–2.

The RS–232 from NME–3 can be tested by using WinTesla together with
RS232 test circuit of the Test Interface Box.
WinTesla communicates with the RU and the HS via the MBUS. The
MBUS is connected tramsparently.

A remote connector optionally controls all settings.

Technical Description

Technical Documentation

AMC

2

VDA–Signals

CRM

IGNS

BLD

100%

OFF

75%

HFMIC

OFF

3 4

RS232–Test /
FLASH_PRG

TEST

FLASH

FLS–1

1

1– Main Switch (testing/flashing) (FLS–1 for future use)

2– Ignition sense (pulsed / off / on)
3– Back light dimming (on / off / 75% brightness = 50% duty cycle
4– DC power for HF mic activen(above &V)
5– Audio path switch
6– HS connector

Figure 1. Front Panel Map

AUDIO

SYSTEM

HSpath

MicSpk

HFpath

HFLine

HStest

MBUS

REMOTE

HS–Connector

POWER

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JBD–2 User Guide

Modes of Operation

JBD–2 has three operation modes. They are selectable with the switch
(TEST/FLASH/FLS1). The general mode is TEST. In this case, the box is
testing all interfaces from NME–3.

In FLASH mode the JBD–2 support the old FLASH concept and in FLS1
mode the JBD–2 box support the new flash concept with FLS–1

Operation Mode TEST

In this mode, the JBD–2 box together with WinTesla or PCI–/HCI–Test is
able to test all interfaces from NME–3.

Figure 2. Rear Panel Map

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JBD–2 User Guide

Possible Audio Test Paths

There are six different audio modes. All audio modes are selectable with
the switch .
Set the switch into the upper position then change the JBD–2 into the
next mode. Switching to the next mode will be indicated by a shift of the
indicator LED one position to right. On the end of the LED line, there is a
wrap around with the next push up.
If you actuate the switch in its bottom position then the JBD–2 will change
into the previous audio mode. On the left end of the LED line, there is a
wrap around with the next push down.

SYSTEM Mode

SYSTEM Mode tests the normal mobile mode.
The audio signals (HSMICP/N & HSEARP/N) will be routed via a matrix to
the handset.
Additionally it will be connecting the following signals HFMICP and
SPKP/N to the handsfree accessories connectors.

Technical Documentation

HS

RU

— These are the default setting after the power–on.

AOUT

HSEARP, HSEARN

HS

HSMICP, HSMICN

HSMICP, HSMICN

HSEARP, HSEARN
HFMICP, HFMICGND

RU

SPKP, SPKN
LINEP, LINEN

AIN

Switch–Matrix

RS232

Figure 3. Routed audio path in Test mode

MIC

SPK

LINE

to PC

Test case
HS path

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Tests the HS path from the RU.
The audio signals (HSMICP/N & HSEARP/N) are routed via switch matrix
to AIN and AOUT. They are converted with electronics from an
unbalanced to balanced signal and vice versa.

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HS

RU

RU

AIN

HSEARP,HSEARN
HSMICP , HSMICN

HSMICP , HSMICN

HSEARP ,HSEARN

Switch–Matrix

Figure 4. Routed audio path in HS path

JBD–2 User Guide

AOUT

MIC

SPK

LINE

to PC

RS232

Test Setup

HS

RU

Measure Application

This describes one of several measure possibilities.
In order to test to the complete HSMIC and HSEAR path, the RU must be

set on internal audio–loop. Then inject a HSMIC signal in AIN and
measure the HSEAR signal with oscilloscope at AOUT.

If it is not possible to set the RU on the internal audio–loop, it is possible
to create it on the RF side with an external audio–loop and a GSM tester.

JBD–2

AOUT

AIN

TDC–4

CH1

CH2

PC

OSCI

Signal

Generator

HF path

Tests the HF path from the RU.
The audio signals (HFMICP& SPKP/N) are routed via switch–matrix to
AIN and AOUT.

— The audio signal SPKP/N is a balanced signal. (A
balanced–to–unbalanced converter is used).

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