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The availability of particular products may vary by region.
IMPORTANT
This document is intended for use by qualified service personnel only.
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. IF NECESSARY, CONSULT THE VEHICLE DEALER/
MANUFACTURER TO DETERMINE THE IMMUNITY OF VEHICLE ELECTRONIC SYSTEMS TO RF ENERGY.
•
THE PRODUCT MUST NOT BE OPERATED IN AREAS LIKELY TO CONTAIN POTENTIALLY EXPLOSIVE ATMOSPHERES,
FOR EXAMPLE, PETROL STATIONS (SERVICE STATIONS), BLASTING AREAS ETC.
•
OPERATION OF ANY RADIO TRANSMITTING EQUIPMENT, INCLUDING CELLULAR TELEPHONES, MAY INTERFERE
WITH THE FUNCTIONALITY OF INADEQUATELY PROTECTED MEDICAL DEVICES. CONSULT A PHYSICIAN OR THE
MANUFACTURER OF THE MEDICAL DEVICE IF YOU HAVE ANY QUESTIONS. OTHER ELECTRONIC EQUIPMENT MAY
ALSO BE SUBJECT TO INTERFERENCE.
•
BEFORE MAKING ANY TEST CONNECTIONS, MAKE SURE YOU HAVE SWITCHED OFF ALL EQUIPMENT.
Cautions
•
Servicing and alignment must be undertaken by qualified personnel only.
•
Ensure all work is carried out at an anti-static workstation and that an anti-static wrist strap is worn.
•
Ensure solder, wire, or foreign matter does not enter the telephone as damage may result.
•
Use only approved components as specified in the parts list.
•
Ensure all components, modules, screws and insulators are correctly re-fitted after servicing and
alignment.
•
Ensure all cables and wires are repositioned correctly.
•
Never test a mobile phone WCDMA transmitter with full Tx power, if there is no possibility to perform the
measurements in a good performance RF-shielded room. Even low power WCDMA transmitters may disturb
nearby WCDMA networks and cause problems to 3G cellular phone communication in a wide area.
•
During testing never activate the GSM or WCDMA transmitter without a proper antenna load, otherwise
GSM or WCDMA PA may be damaged.
This product is 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.
•
Do not use or store the phone in dusty, dirty areas. Its moving parts can be damaged.
•
Do not store the phone in hot areas. High temperatures can shorten the life of electronic devices, damage
batteries, and warp or melt certain plastics.
•
Do not store the phone in cold areas. When it warms up (to its normal temperature), moisture can form
inside, which may damage electronic circuit boards.
•
Do not drop, knock or shake the phone. Rough handling can break internal circuit boards.
•
Do not use harsh chemicals, cleaning solvents, or strong detergents to clean the phone.
•
Do not paint the phone. Paint can clog the moving parts and prevent proper operation.
•
Use only the supplied or an approved replacement antenna. Unauthorised antennas, modifications or
attachments could damage the phone and may violate regulations governing radio devices.
All of the above suggestions apply equally to the product, battery, charger or any accessory.
Nokia requires that service points have sufficient ESD protection (against static electricity) when servicing
the phone.
Any product of which the covers are removed must be handled with ESD protection. The SIM card can be
replaced without ESD protection if the product is otherwise ready for use.
To replace the covers ESD protection must be applied.
All electronic parts of the product are susceptible to ESD. Resistors, too, can be damaged by static electricity
discharge.
All ESD sensitive parts must be packed in metallized protective bags during shipping and handling outside
any ESD Protected Area (EPA).
Every repair action involving opening the product or handling the product components must be done under
ESD protection.
ESD protected spare part packages MUST NOT be opened/closed out of an ESD Protected Area.
For more information and local requirements about ESD protection and ESD Protected Area, contact your local
Note: 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. Unplug the charger when not in use. Do not leave the battery connected to
a charger for longer than a week, since overcharging may shorten its lifetime. If left unused a fully charged
battery will discharge itself over time.
Temperature extremes can affect the ability of your battery to charge.
For good operation times with Ni-Cd/NiMh batteries, discharge the battery from time to time by leaving the
product switched on until it turns itself off (or by using the battery discharge facility of any approved accessory
available for the product). Do not attempt to discharge the battery by any other means.
Use the battery only for its intended purpose.
Never use any charger or battery which is damaged.
Do not short-circuit the battery. Accidental short-circuiting can occur when a metallic object (coin, clip or
pen) causes direct connection of the + and - terminals of the battery (metal strips on the battery) for example
when you carry a spare battery in your pocket or purse. Short-circuiting the terminals may damage the battery
or the connecting object.
Leaving the battery in hot or cold places, such as in a closed car in summer or winter conditions, will reduce
the capacity and lifetime of the battery. Always try to keep the battery between 15°C and 25°C (59°F and 77°
F). A phone with a hot or cold battery may temporarily not work, even when the battery is fully charged.
Batteries' performance is particularly limited in temperatures well below freezing.
Do not dispose of batteries in a fire!
Dispose of batteries according to local regulations (e.g. recycling). Do not dispose as household waste.
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/email.
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 CORPORATION
Nokia Mobile Phones Business Group
Nokia Customer Care
PO Box 86
FIN-24101 SALO
Finland
E-mail: Service.Manuals@nokia.com
1 General information
2 Service Devices and Service Concepts
3 BB Troubleshooting and Manual Tuning Guide
4 RF troubleshooting
5 System Module
6 BOB (WLAN/FM/BT)
Glossary
Phone features ...................................................................................................................................................... 1–5
General specifications...................................................................................................................................... 1–6
Service devices....................................................................................................................................................... 2–5
Product specific devices................................................................................................................................... 2–5
General devices................................................................................................................................................. 2–5
Service concepts ................................................................................................................................................. 2–11
The table below gives a short overview of service devices that can be used for testing, error analysis, and
repair of product RM-614. For the correct use of the service devices, and the best effort of workbench setup,
please refer to various concepts.
MJ-262Module jig
MJ-262 is meant for component level troubleshooting.
The jig includes an RF interface for GSM and Bluetooth. In addition, it
has the following features:
•
Provides mechanical interface with the engine module
•
Provides galvanic connection to all needed test pads in module
•
MMC interface
•
Duplicated SIM connector
•
Connector for control unit
•
Access for AV- and USB connectors
•
CA-128RS cable is used together with this jig for RF testing.
General devices
The table below gives a short overview of service devices that can be used for testing, error analysis, and
repair of product RM-614. For the correct use of the service devices, and the best effort of workbench setup,
please refer to various concepts.
CU-4Control unit
CU-4 is a general service tool used with a module jig and/or a flash
adapter. It requires an external 12 V power supply.
The unit has the following features:
•
software controlled via USB
•
EM calibration function
•
Forwards FBUS/Flashbus traffic to/from terminal
•
Forwards USB traffic to/from terminal
•
software controlled BSI values
•
regulated VBATT voltage
•
2 x USB2.0 connector (Hub)
•
FBUS and USB connections supported
When using CU-4, note the special order of connecting cables and
other service equipment:
Instructions
1 Connect a service tool (jig, flash adapter) to CU-4.
2 Connect CU-4 to your PC with a USB cable.
3 Connect supply voltage (12 V)
4 Connect an FBUS cable (if necessary).
5 Start Phoenix service software.
Note: Phoenix enables CU-4 regulators via USB when it is
started.
Reconnecting the power supply requires a Phoenix restart.
SRT-6Opening tool
SRT-6 is used to open phone covers.
Note: The SRT-6 is included in the Nokia Standard Toolkit.
SS-93Blue stick tool
SS-93 is used for general disassembly and assembly tasks.
SX-4Smart card
SX-4 is a BB5 security device used to protect critical features in tuning
and testing.
SX-4 is also needed together with FPS-21 when DCT-4 phones are
flashed.
Cables
The table below gives a short overview of service devices that can be used for testing, error analysis, and
repair of product RM-614. For the correct use of the service devices, and the best effort of workbench setup,
please refer to various concepts.
CA-101Micro USB cable
The CA-101 is a USB-to-microUSB data cable that allows connections
Introduction to BB Troubleshooting ................................................................................................................... 3–5
Baseband self tests in Phoenix ............................................................................................................................ 3–5
Power and charging troubleshooting................................................................................................................. 3–7
Dead or jammed device troubleshooting...................................................................................................... 3–7
General power checking.................................................................................................................................. 3–8
USB Interface Troubleshooting.................................................................................................................... 3–27
User interface troubleshooting......................................................................................................................... 3–29
Backlight and Illumination Troubleshooting ............................................................................................. 3–29
Camera troubleshooting.................................................................................................................................... 3–37
Camera HW Troubleshooting ....................................................................................................................... 3–37
Bad Camera Image Quality Troubleshooting ............................................................................................. 3–38
Figure 19 Front side ........................................................................................................................................... 3–42
Figure 20 Back side ............................................................................................................................................ 3–42
Nearly all of the functions of the phone are contained within or controlled by the D2800 Juno BB ASIC so most
of the debugging will be centered there. The D2800 Juno BB ASIC is static sensitive so precautions must be
taken to avoid damaging this or other devices from excessive ESD.
Baseband self tests in Phoenix
Context
Always start the trouble-shooting procedure by running the Phoenix self tests. If a test fails, please follow
the diagram in the
If the phone is dead and you cannot perform the self-test, please go to
Troubleshooting.
Note: The phone must be powered-down and in the PWR_OFF state when replacing components.
The D2800 Juno BB ASIC requires two clocks for proper operation. Both are provided by on-board crystals.
•
The 32 kHz crystal is connected to the N2201 PMU and is transmitted to the D2800 Juno BB ASIC.
•
The 26 MHz crystal is connected directly to the D2800 Juno BB ASIC. The D2800 Juno BB ASIC can output
four copies of the 26 MHz input clock from it’s CK1, CK2, RF_XON, and RF_XOP pins, however, only the RF_XON
output is used.
Note: All test-points are located under the RF shielding.
1) 32 kHz crystal (B2200)
The 32 kHz clock to the N2201 Loviisa can be tested by setting the oscilloscope probe on R2209.
2) 26 MHz crystal (B2800)
•
The 26 MHz clock to the D2800 Juno can be tested by setting the oscilloscope probe on B2800.
•
RF_XON output clock can be tested by probing C6094 near the BT/FM/WLAN module.
Note: This step will require the RF_XON output clock for BT/FM/WLAN module to be enabled through
Differential external earpiece and internal earpiece outputs can be measured either with a single-ended or
a differential probe.
When measuring with a single-ended probe each output is measured against the ground.
Internal handsfree output is measured using a current probe, if a special low-pass filter designed for
measuring a digital amplifier is not available. Note also that when using a current probe, the input signal
frequency must be set to 1kHz.
The input signal for each loop test can be either single-ended or differential.
Required equipment
The following equipment is needed for the tests:
•
Oscilloscope
•
Function generator (sine waveform)
•
'Active speaker' or 'speaker and power amplifier'
•
Sound level meter
•
Current probe (Internal handsfree DPMA output measurement)
•
Phoenix service software
•
Battery voltage 3.7V
Test procedure
Audio can be tested using the Phoenix audio routings option. Three different audio loop paths can be
activated:
•
External microphone to Internal earpiece
•
External microphone to Internal handsfree speaker
•
Internal microphone to External earpiece
Each audio loop sets routing from the specified input to the specified output enabling a quick in-out test.
Loop path gains are fixed and they cannot be changed using Phoenix. Correct pins and signals for each test
are presented in the following table.
Phoenix audio loop tests and test results
The results presented in the table apply when no accessory is connected and battery voltage is set to 3.7V.
Earpiece, internal microphone and speaker are in place during measurement. Applying a headset accessory
during measurement causes a significant drop in measured quantities.
The gain values presented in the table apply for a differential output vs. single-ended/differential input.
This procedure is performed when the device certificate is corrupted for some reason.
All tunings (RF & Baseband, UI) must be done after performing the certificate restoring procedure.
The procedure for certificate restoring is the following:
•
Flash the phone with the latest available software using FPS-10 and FPS-21.
Note: If the COMBO memory of a phone is replaced, the ENO SW must be flashed first before
performing the "normal" firmware flashing.
•
Execute the certificate restore process in Phoenix.
•
Tune the phone completely.
Note: SX-4 smart card is needed.
•
If the phone resets after certificate restoring, reflash the phone again.
Required equipment and setup:
•
Phoenix
•
The latest phone model specific
•
PK-1 dongle
•
SX-4 smart card (Enables testing and tuning features)
•
Activated FPS-10 OR FPS-21 flash prommer OR External smart card reader
•
Latest flash update package for FPS-10 or FPS-21 flash prommers
•
CU-4 control unit
•
USB cable from PC USB Port to CU-4 control unit
•
PCS-1 cable to power CU-4 from external power supply
•
XCS-4 modular cable between flash prommer and CU-4
service software supporting RM-614.
Phoenix
Note: CU-4 must be supplied with +12 V from an external power supply in all steps of certificate
restoring.
data package.
RM-614
Steps
1. Program the phone software.
Note: If the COMBO memory of a phone is replaced, the ENO SW must be flashed first before
performing the "normal" firmware flashing.
2. Execute the certificate restore process in
Phoenix
.
Next actions
After a successful rewrite, you must retune the phone completely by using
Important: Perform all tunings: RF, BB, and UI.
Energy management calibration
Phoenix
tuning functions.
Prerequisites
Energy Management (EM) calibration is performed to calibrate the setting (gain and offset) of AD converters
in several channels (that is, battery voltage, BSI, battery current) to get an accurate AD conversion result.
Supply 12V DC from an external power supply to CU-4 to power up the phone.
•
The phone must be connected to a CU-4 control unit with a product-specific flash adapter.
Steps
1.Connect CU-4 with MJ-262, and place phone to the Module jig MJ-262.
2.Start
3.Choose File→ Scan Product.
4.Choose Tuning→Energy Management Calibration.
5.To show the current values in the phone memory, click Read, and check that communication between
6.Check that the CU-4 used check box is checked.
7.Select the item(s) to be calibrated.
8.Click Tune.
9.The calibration of the selected item(s) is carried out manually.
10. Click Calculate.
11. The candidates for the new calibration values are shown in the Calculated Values column. If the new
Phoenix
the phone and CU-4 works.
Note: ADC calibration has to be performed before other item(s). However, if all calibrations are
selected at the same time, there is no need to perform the ADC calibration first.
Note: Currently
according to pop-up requirement.
calibration values seem to be acceptable (please refer to the following "Calibration value limits" table),
click Write to store the new calibration values to the phone permanent memory.
service software.
Phoenix
cannot support automatic tuning. The external settings are needed
General RF troubleshooting ................................................................................................................................. 4–5
Introduction to RF troubleshooting ............................................................................................................... 4–5
Auto tuning for RF ................................................................................................................................................. 4–6
General RF voltage checking ................................................................................................................................ 4–7
General voltage checking ................................................................................................................................ 4–7
FEM Control Signal............................................................................................................................................ 4–8
Table 3 FEM Supplies/Control Signals.................................................................................................................. 4–8
Table 4 FEM Control Logics ................................................................................................................................... 4–8
Table 5 Signals Coverage in RFPA Self-test Option.......................................................................................... 4–20
Most RF semiconductors are static discharge sensitive
ESD protection must be applied during repair (ground straps and ESD soldering irons).
Pre-baking
These parts are moisture sensitive and must be pre-baked prior to soldering:
•
Juno D2800
•
Front End Module N7500
Discrete components
In addition to the key-components, there are a number of discrete components (resistors, inductors, and
capacitors) for which troubleshooting is done mainly by
Capacitors: check for short circuits.
Resistors: check value with an ohm meter.
Inductors: check for open circuits.
Note: In-circuit measurements should be evaluated carefully.
visual inspection
.
Measuring equipment
All measurements should be done using:
•
An oscilloscope for low frequency and DC measurements. Recommended probe: 10:1, 10Mohm//8pF.
•
A radio communication tester including RF generator and spectrum analyser, for example Rohde & Schwarz
CMU200. (Alternatively a spectrum analyser and an RF generator can be used. Some tests in this guide are
not possible to perform if this solution is chosen).
Note: All measurements with an RF coupler should be performed in an RF-shielded environment
because nearby base stations can disturb sensitive receiver measurements. If there is no possibility
to use RF shielded environment, testing at frequencies of nearby base stations should be avoided.
Level of repair
The scope of this guideline is to enable repairs at key-component level. Some key-components are not
accessible, i.e. not replaceable. Please refer to the list of Non-replaceable RF components.
Note: After the RF shielding can is removed (for measurement or repair), it must be replaced with
Figure 23 General voltage checking test points (main board, top side)
FEM Control Signal
When troubleshooting the FEM, it’s important to check its’ control signal. If the control signal didn’t operate
correctly, FEM might not turn on or it might turn on in different mode. Table xxx shows the control logic for
TX_EN, BS1, BS1, MODE, and TX_SW_EN. Figure xxx shows the timing diagram that one expects when probing
these signals.