without the prior written permission of Nokia is prohibited.
Nokia, Nokia Connecting People, and Nokia X and Y are trademarks or registered trademarks of Nokia
Corporation. Other product and company names mentioned herein may be trademarks or tradenames of
their respective owners.
Nokia operates a policy of continuous development. Nokia reserves the right to make changes and
improvements to any of the products described in this document without prior notice.
Under no circumstances shall Nokia be responsible for any loss of data or income or any special, incidental,
consequential or indirect damages howsoever caused.
The contents of this document are provided "as is". Except as required by applicable law, no warranties of
any kind, either express or implied, including, but not limited to, the implied warranties of merchantability
and fitness for a particular purpose, are made in relation to the accuracy, reliability or contents of this
document. Nokia reserves the right to revise this document or withdraw it at any time without prior notice.
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.
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
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.
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
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 Li-Pol 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.
RM-328
Nokia 6220 classic; L3&4 Service Manual Structure
Nokia 6220 classic; L3&4 Service Manual Structure
1 General Information
2 Service Tools and Service Concepts
3 BB Troubleshooting and Manual Tuning Guide
4 RF troubleshooting
5 Camera Module Troubleshooting
6 System Module and User Interface
Glossary
Product features and sales package.....................................................................................................................1–5
Product and module list ........................................................................................................................................1–7
Mobile enhancements............................................................................................................................................1–7
Transceiver general specifications ..................................................................................................................1–9
Main RF characteristics for GSM850/900/1800/1900 and WCDMA VIII (900) and WCDMA I (2100)
Table 3 Data ............................................................................................................................................................1–8
Table 5 Music ..........................................................................................................................................................1–8
Figure 1 View of RM-328........................................................................................................................................1–5
RM-328 is a GSM/HSDPA/WCDMA tri-mode handportable monoblock phone with an integrated GPS (A-GPS OMA
SUPL) and a TV-out connection. It supports EGSM850/900/1800/1900 and WCDMA900/2100 bands, and CSD/
HSCSD, GPRS/EGPRS, WCDMA/HSDPA data bearers.
For WCDMA the maximum bit rate is up to 384 kbit/s for downlink and 384 kbit/s for uplink with simultaneous
CS speech or CS video (max. 64 kbit/s). The HSDPA peak is 3.6 Mbit/s downlink (with limited use cases).
For GPRS/EGPRS networks the RM-328 is a Class B GPRS/EGPRS MSC 32 (5 Rx + 3 Tx, max sum 6) device, which
means a maximum uplink speed of 298 kbit/s and downlink speed of 178.8 kbit/s. RM-328 also supports Dual
Transfer Mode (DTM) for simultaneous voice and packet data connection in GSM/EDGE networks; simple class
A, multi slot class 11, (4 Rx + 3 Tx, max sum 5 ), DL/UL=178.8/118.2 kbit/s.
RM-328 has a large 2.2’’ QVGA (320x240 pixels) TFT display with 16 million colors, a 5 Megapixel main camera
with Carl Zeiss optics and an integrated Xenon flash, and a 2nd CIF camera for video calls.
RM-328 is an MMS (Multimedia Messaging Service) enabled multimedia device. The MMS implementation
follows the OMA MMS standard release 1.2. RM-328 also supports the Bluetooth 2.0 + EDR standard.
RM-328 uses Symbian (S60, release 3.2) operating system and supports the full Web Browser for S60, which
brings desktop-like Web browsing experience to mobile devices.
RM-328 also supports MIDP Java 2.0, providing a good platform for compelling 3rd party applications.
Service tools............................................................................................................................................................2–5
Product specific tools........................................................................................................................................2–5
Using FS-75 flash adapter with RM-328.....................................................................................................2–8
Using SA-131 GPS RF coupler with RM-328................................................................................................2–9
Rework jigs and stencils................................................................................................................................ 2–11
General tools................................................................................................................................................... 2–14
Service concepts .................................................................................................................................................. 2–22
POS (Point of Sale) flash concept .................................................................................................................. 2–22
Flash concept with FPS-10............................................................................................................................. 2–23
CU-4 flash concept with FPS-10..................................................................................................................... 2–24
Module jig service concept............................................................................................................................ 2–25
RF testing concept with RF coupler .............................................................................................................. 2–26
Service concept for RF testing and RF/BB tuning........................................................................................ 2–27
GPS testing concept with GPS RF coupler..................................................................................................... 2–28
Bluetooth testing concept with SB-6 ........................................................................................................... 2–29
Figure 3 Attaching RM-328 to FS-75 - part 1........................................................................................................2–8
Figure 4 Attaching RM-328 to FS-75 - part 2........................................................................................................2–8
Figure 5 Attaching RM-328 to FS-75 - part 3........................................................................................................2–9
Figure 6 Detaching RM-328 from FS-75................................................................................................................2–9
Figure 7 Base setting for SA-131........................................................................................................................ 2–10
Figure 8 Sledge setting for SA-131 .................................................................................................................... 2–11
Figure 9 Coupler setting for SA-131................................................................................................................... 2–11
Figure 10 Basic flash concept with FPS-10........................................................................................................ 2–23
Figure 11 CU-4 flash concept with FPS-10......................................................................................................... 2–24
Figure 12 Module jig service concept................................................................................................................ 2–25
Figure 13 RF testing concept with RF coupler.................................................................................................. 2–26
Figure 14 Service concept for RF testing and RF/BB tuning............................................................................ 2–27
Figure 15 RF testing concept with RF coupler.................................................................................................. 2–28
Figure 16 Service concept for RF testing and RF/BB tuning............................................................................ 2–29
The table below gives a short overview of service devices that can be used for testing, error analysis, and
repair of product RM-328. For the correct use of the service devices, and the best effort of workbench setup,
please refer to various concepts.
FS-75Flash adapter
For flashing (also dead phones) with SS-46. RF testing and tuning, and
EM calibration on ATO level with SS-62 (mechanical locking concept),
CU-4 supported.
For more information on how to use the FS-75 with RM-328, see Using
FS-75 flash adapter with RM-328 (page 2–8).
MJ-160Module jig
MJ-160 is meant for troubleshooting, testing, tuning and flashing on
the engine level (CU-4 supported).
The jig includes an RF interface for GPS, GSM, WCDMA and Bluetooth.
Below is a MJ-160 setup, in which the following RM-328 components
have been attached to the jig:
• Xenon flash package
• Engine
• Deck with attached display, UI sheet assembly and keypad
In the setup below the CU-4 control unit is in place and the XRS-6 RF
cable has been attached to the GPS interface of the jig.
The table below gives a short overview of service devices that can be used for testing, error analysis, and
repair of product RM-328. For the correct use of the service devices, and the best effort of workbench setup,
please refer to various concepts.
RJ-73Rework jig
RJ-73 is a rework jig used when servicing the N7601 component. It is
used together with the ST-29 rework stencil.
RJ-93Rework jig
RJ-93 is used as a rework jig for the Front End Module (FEM).
This rework jig takes the FEM or power amplifier (PA) module (N7520)
for spreading the soldering paste to the component. Must be used
together with the ST-40 stencil.
ST-29rework stencil
ST-29 is a rework stencil used when servicing the N7601 component.
It is used together with rework jig RJ-73.
ST-40Rework stencil
ST-40 is a rework stencil that is used with the RJ-93 rework jig to
service the Front End Module (N7520).
ST-55Rework stencil
ST-55 is a rework stencil used when servicing the Z7540 and Z7541
duplexers. It is used together with the rework jigs RJ-157 and RJ-160.
ST-61Rework stencil
ST-61 is a rework stencil used when servicing the microphone (B2170).
It is used together with the rework jig RJ-184.
ST-65Rework stencil
ST-65 is a rework stencil used when servicing the GSM 850/900 TX filter
(Z7503).
This stencil is used together with the rework jig RJ-201.
General tools
The table below gives a short overview of service devices that can be used for testing, error analysis, and
repair of product RM-328. 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.
FLS-5Flash device
FLS-5 is a dongle and flash device incorporated into one package,
developed specifically for POS use.
Note: FLS-5 can be used as an alternative to PKD-1.
FPS-10Flash prommer
FPS-10 interfaces with:
• PC
• Control unit
• Flash adapter
• Smart card
FPS-10 flash prommer features:
• Flash functionality for BB5 and DCT-4 terminals
• Smart Card reader for SX-2 or SX-4
• USB traffic forwarding
• USB to FBUS/Flashbus conversion
• LAN to FBUS/Flashbus and USB conversion
• Vusb output switchable by PC command
FPS-10 sales package includes:
• FPS-10 prommer
• Power Supply with 5 country specific cords
• USB cable
Note: FPS-21 is substitute FPS-10 if FPS-10 has not been set
up.
JXS-1RF shield box
Because the WCDMA network disturbs the RX side testing of the WCDMA
phone and the Tx signal of the WCDMA phone can severely disturb the
WCDMA network, a shield box is needed in all testing, tuning and fault
finding which requires WCDMA RF signal.
The shield box is not an active device, it contains only passive filtering
components for RF attenuation.
PK-1 is a hardware protection key with a USB interface. It has the same
functionality as the PKD-1 series dongle.
PK-1 is meant for use with a PC that does not have a series interface.
To use this USB dongle for security service functions please register
the dongle in the same way as the PKD-1 series dongle.
PKD-1SW security device
SW security device is a piece of hardware enabling the use of the
service software when connected to the parallel (LPT) port of the PC.
Without the device, it is not possible to use the service software.
Printer or any such device can be connected to the PC through the
device if needed.
SB-6Bluetooth test and
interface box (sales
package)
The SB-6 test box is a generic service device used to perform Bluetooth
bit error rate (BER) testing, and establishing cordless FBUS connection
via Bluetooth. An ACP-8x charger is needed for BER testing and an
AXS-4 cable in case of cordless interface usage testing .
Sales package includes:
• SB-6 test box
• Installation and warranty information
SPS-1Soldering Paste
Spreader
The SPS-1 allows spreading of solder to the LGA components pads over
the rework stencils.
The table below gives a short overview of service devices that can be used for testing, error analysis, and
repair of product RM-328. 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
between the PC and the phone.
CA-31DUSB cable
The CA-31D USB cable is used to connect FPS-10 or FPS-11 to a PC. It is
included in the FPS-10 and FPS-11 sales packages.
CA-35SPower cable
CA-35S is a power cable for connecting, for example, the FPS-10 flash
prommer to the Point-Of-Sales (POS) flash adapter.
Baseband main troubleshooting..........................................................................................................................3–5
Dead or jammed device troubleshooting............................................................................................................3–7
General power checking ........................................................................................................................................3–8
USB troubleshooting ........................................................................................................................................... 3–19
Power key troubleshooting................................................................................................................................ 3–23
GPS layout and basic test points................................................................................................................... 3–26
GPS settings for Phoenix................................................................................................................................ 3–27
Quick Test window.................................................................................................................................... 3–27
GPS RF test points........................................................................................................................................... 3–28
ALS functionality check............................................................................................................................. 3–39
Bluetooth and FM radio ...................................................................................................................................... 3–42
Bluetooth and FM radio introduction........................................................................................................... 3–42
Bluetooth and FM radio component placement ......................................................................................... 3–42
Bluetooth and FM Radio Self Tests ............................................................................................................... 3–44
Bluetooth BER Test......................................................................................................................................... 3–45
Bluetooth and FM radio discrete ASIC troubleshooting ............................................................................. 3–47
TV out troubleshooting....................................................................................................................................... 3–48
Figure 23 ALS components ................................................................................................................................. 3–39
Figure 24 Test points in Bluetooth-FM ASIC circuit .......................................................................................... 3–43
Figure 25 Test points in FM radio LNA............................................................................................................... 3–44
Figure 26 Single-ended output waveform of the Ext_in_HP_out measurement when earpiece is
Verify that the backup battery G2200 is empty (U<1V). Switch the phone on. Measure voltage of the battery
when the main battery is connected to the phone and the phone is switched on. Wait a few minutes and
monitor that the backup battery voltage rises. Switch off the phone, disconnect the main battery and monitor
that the voltage of the backup battery decreases. Normal behaviour of the voltage is described in the figures
below:
If the voltage rises and falls quickly, check the back-up battery G2200 contacts for loose soldering or shortcircuit, and repair or change G2200 if necessary. If the voltage stays ~0V, check resistance VBACK against GND.
If there is no shortcircuit, AVILMA N2200 is faulty. Replace N2200.
There are two possible failure modes in the keyboard module:
• One or more keys can be stuck, so that the key does not react when a keydome is pressed. This kind of
failure is caused by mechanical reasons (dirt, rust).
• Malfunction of several keys at the same time; this happens when one or more rows or columns are failing
(shortcut or open connection). For a more detailed description of the keyboard and keymatrix, see section
Keyboard.
If the failure mode is not clear, start with the Keyboard Test in Phoenix.
VBat, ASIC internal LDO voltages, and clocks are available as shown in figure above. In addition to these, the
following GPS signals are available on the test points:
2. From the File menu, select Scan Product and check that the correct product version is displayed.
3. From the Testing menu, select GPS Control. This opens up
figure below, and enables the GPS.
GPS Control
dialogue box, as shown in the
Figure 19 GPS Control dialog box
Select Idle to confirm the GPS is enabled and is in idle mode; at this point all clocks should be present,
GPS_En_Reset & SleepX should be high, and Vdd_Dig, Vcc_TCXO & Vcc_PLL/VCO will be present.
Receiver On turns on all RF sections of the ASIC and so all LDOs will be on. These checks are part of GPS
basic checks troubleshooting (page 3–31).
Quick Test window
The
Quick Test
correct and click Start Test. (Select Help for further information).
Issue 1COMPANY CONFIDENTIALPage 3 –27
window has all the necessary functionality for GPS troubleshooting. Ensure the test setup is
This test will perform 3 tests in one; Self Test, Oscillator Test and CW Test, and will provide a Pass/Fail response.
It also contains a Receiver On button. These checks are part of GPS failure troubleshooting (page 3–30).
Figure 20 GPS Quick Test window for GPS troubleshooting
GPS RF test points
The GPS antenna test pads are located on the top side as shown in figure "GPS antenna test pads". Checking
for a connection between these two test points will confirm that the antenna is working correctly, as well
as performing a radiated CW test.
J6201 = GPS Ant
J6202 = GPS Ant Gnd
In order to probe GPS RF test points, inject 1575.52 MHz tone @ -50dBm at the GPS antenna test connector
and select Receiver On, then probe the GPS RF test points as shown in figure "GPS RF probe points". Compare
RF levels with a known reference phone.
GPS troubleshooting is broken down into two parts: general GPS failure & GPS basic checks. The GPS failure
troubleshooting flow can be followed and, where applicable, will feed into the Basic checks troubleshooting
flow.
• The display is in a normal mode when the phone is in active use.
• Display is in a partial idle mode when the phone is in the screen saver mode.
• The operating modes of the display can be controlled with the help of
Table 8 Display module troubleshooting cases
Display blankThere is no image on the display. The display looks
the same when the phone is on as it does when the
phone is off. The backlight can be on in some cases.
Image on the display not correctImage on the display can be corrupted or a part of
the image can be missing. If a part of the image is
missing, change the display module. If the image is
otherwise corrupted, follow the appropriate
troubleshooting diagram.
Phoenix
.
Backlight dim or not working at allBacklight LED components are inside the display
module. Backlight failure can also be in the
connector or in the backlight power source in the
main engine of the phone.
This means that in case the display is working
(image OK), the backlight is faulty.
Visual defects (pixel)Pixel defects can be checked by controlling the
display with Phoenix. Use both colours, black and
white, on a full screen.
The display may have some random pixel defects
that are acceptable for this type of display. The
criteria when pixel defects are regarded as a display
failure, resulting in a replacement of the display, are
presented the following table.
Table 9 Pixel defects
ItemWhite dot defectBlack dot
defect
1Defect countsRGBWhite Dot
Total
11
Total
1111
2Combined
defect counts
Issue 1COMPANY CONFIDENTIALPage 3 –33
Not allowed.
Two single dot defects that are within 5 mm of each other should be
1. Verify with a working display that the fault is not on the display module itself.
The display module cannot be repaired.
2. Check that the cellular engine is working normally.
iTo check the functionality, connect the phone to a docking station.
iiStart
iii Read the phone information to check that also the application engine is functioning normally (you
3. Proceed to the display troubleshooting flowcharts.
Use the Display Test tool in
Phoenix
should be able to read the APE ID).
service software.
Phoenix
to find the detailed fault mode.
Display troubleshooting
Context
Before going to display troubleshooting flow, make sure that the engine is working and starting up correctly.
If the problem is in the engine, go to baseband troubleshooting.
The device has three LED drivers. One of the drivers provides current for the display backlights. The display
backlights can be turned ON (100% max.) and OFF (0%) with PWM.
The two other LED drivers provide current for the keyboard backlights. The keyboard backlights can be turned
ON/OFF separately.
The device has one LED driver that provides current for both the display and keyboard backlights. Brightness
can be adjusted manually, and it affects both the display and keypad. Keyboard backlights can be turned ON/
OFF separately but not without switching on the display lights.
If necessary, change the Light to digital converter (N6502). Also, check capacitor C6504 (100n).
Figure 23 ALS components
After replacing the ALS sensor, or if the calibration values of the sensor are lost or for some other reason, ALS
calibration is required. For more information, see ALS functionality check (page 3–39) and Calibrating ALS
(page 3–40).
Note: ALS calibration is also required for Light SWAP Engines, because ALS is not factory calibrated
for Light SWAP.
When executing the ALS calibration, a reference phone that includes calibrated ALS is required. The ALS retuning instructions show why the reference phone is needed.
Note: Make sure that you have completed the display and keyboard backlights troubleshooting
before starting the ALS troubleshooting.
There is an Ambient Light Sensor window in the Phoenix Display Test tool, which shows the luminance value.
The correct luminance in darkness is <20 lx, and in an office environment 100-2000 lx.
Note: The luminance value depends heavily on the light source and the angle of the phone against
the light source, so the values above can only be used as a rough guideline. Phoenix has an ambient
light sensor calibration tool for changing the calibration values.
Ambient Light Sensor calibration
ALS functionality check
Steps
1. Connect the phone to
the ambient light visible to ALS is stable. The light quide of the ALS is located on the upper part of the
phone’s front cover, right next to the secondary camera.
2. Scan product on Phoenix (CTRL+R)
Phoenix
, start the
Phoenix
software, and set the phone (e.g. on the table) so that
4. Open the Lights tab, and check the Ambient light sensor check box. Click the Read button in order to get
the reference ambient light value. Cover the sensor and click Read again. When covered, the luminance
reading should be less than after clicking Read without covering the sensor.
5. If the component does not give any reading or the reading does not change when sensor is/is not covered,
replace the part.
Note: The ALS module is located on the main PWB. ALS calibration must always be done when the
main PWB is changed. Also, if the ALS calibration values are lost from the phone, ALS needs to be
recalibrated.
The ALS calibration procedure requires a reference phone with a calibrated ALS.
Calibrating ALS
Context
Before doing the manual ALS calibration, test the following default values:
1 Check the Use default values only box from the Ambient Light Sensor Calibration window
2 Click Write
3 Open the Display Test window
4 Read the luminance value from the Display Test window. If the luminance value differs a lot (difference
max. +- 10%) when compared to the reference phone, perform a manual ALS tuning procedure by
following the instructions below.
the ambient light visible to ALS is stable. The light quide of the ALS is located on the upper part of the
phone’s front cover, right next to the secondary camera.
2.Scan product on Phoenix (CTRL+R)
3.Choose Tuning→Ambient Light Sensor Calibration.
Phoenix
, start the
Phoenix
software, and set the phone (e.g. on the table) so that
4.Uncheck the Use default values only check box, click the Read button to get the AD-Count values for
Channel 0 and Channel 1, and write them down.
Note: In the example graphic the reference phone values are: Channel 0=3001 and Channel 1=337
5.Repeat steps 1-4 for the phone to be calibrated.
Note: Make sure the phone to be calibrated is located in the same place as the reference phone was
when luminance reading was taken.
6.Calculate and write down co-efficient value by division:
7.To calibrate ALS, the value in the Reference Level textbox needs to be adjusted for both channels until
the Co-efficient calculated by Phoenix equals the values calculated in step 6. Click Calibrate after each
try (and uncheck the Use default values only check box).
8.Calibration is done when the Co-efficient is equal to the co-efficient value calculated in step 6.
Note: Decimal numbers should be used in the iteration in order to achieve adequate precision (e.g.
9.Use Phoenix (Testing→Display test→Lights tab) to verify the calibration by reading the luminance
value for both the reference phone and calibrated phone.
Note: Remember that the illuminance readings for the reference and calibrated phones must be
done in the same ambient light conditions. If the illuminance values differ more than +- 10%, repeat
the whole ALS calibration procedure.
10. To end the calibration, click Close.
Bluetooth and FM radio
Bluetooth and FM radio introduction
The Bluetooth and FM radio are combined in the same ASIC, so both features are checked when
troubleshooting. The following problems can occur with the Bluetooth and FM radio hardware:
SymptomProblemRepair solution
Unable to switch on
Bluetooth on phone
user interface.
Able to send data file
to another Bluetooth
device, but unable to
hear audio through
functional Bluetooth
headset.
Able to turn switch on
Bluetooth on phone
user interface, but
unable to detect other
Bluetooth devices.
Able to turn on FM
radio and Bluetoothon
phone user interface,
but unable to detect
local FM radio stations
with FM headset
inserted.
Open circuit solder joints or
component failure of BTH/
FM ASIC/module BB ASICs or
SMD components.
Open circuit solder joints or
component failure of BTH/
FM ASIC/module BB ASICs
(PCM interface).
Open circuit solder joints or
detacted component in
Bluetooth antenna circuit.
Open circuit solder joints or
detached component in FM
matching or LNA circuit.
Replacement of Bluetooth/FM ASIC/
module.
Replacement of Bluetooth/FM ASIC/
module.
Repair of Bluetooth antenna circuit.
Repair of FM matching or LNA circuit.
Able to perform scans
to detect local FM radio
stations with
functional FM headset
inserted, but unable to
hear FM audio through
headset.
Open circuit solder joints or
detached component in FM
audio path between
Bluetooth/FM ASIC and
headset.
Repair of FM audio circuit.
Bluetooth and FM radio component placement
The diagram below shows the test points for BTHFMRDS2.0D.
The FM RF signal is routed through a FM antenna matching circuit to the phone headset connector.
The FM radio audio signal is routed to the headset connector through the BB ASIC shared by the phone audio
functions.
Bluetooth and FM Radio Self Tests
Context
A flash adapter (or phone data cable) connected to a PC with Phoenix service software is required.
Steps
1. Place the phone in the flash adapter.
2. Start Phoenix service software.
3. Choose File → Scan Product.
4. From the Mode drop-down menu, set to Local.
5. Choose Testing → Self Tests.
6. In the Self Tests window check the following Bluetooth and FM Radio tests:
JBT-9, or SB-6 Bluetooth test box (BT-box) is required to perform a BER test. If a BT-box if not available
Bluetooth functionality can be checked by transfering a file to another Bluetooth phone.
Steps
1. Place the phone in the flash adapter.
2. Start Phoenix service software.
3. Choose File → Scan Product.
4. Choose Testing → Bluetooth LOCALS
5. Locate the BT-box serial number (12 digits) found in the type label on the back of the JBT-3, JBT-6, JBT-9,
or SB-6 Bluetooth test box.
6. In the Bluetooth LOCALS window, write the 12-digit serial number on the Counterpart BT Device