Nokia N900 RX-51 User manual

Nokia N900 RX-51
Service Manual Level 1&2
1 Confidential
 Copyright © 2009 NOKIA  All rights reserved
Version 1.0 ISSUE 1
SERVICE MANUAL
Level 1&2
RX-51
Transceiver characteristics
Band:
Display:
3.5” wide screen display with 800x480 resolution and
Window Touch, 16M colours
Camera:
5MPix Carl Zeiss autofocus camera with dual LED flash
Operating System:
Maemo Linux
Connections:
3.5 mm AV connector, Bluetooth 2.0 with A2DP
support, Micro USB 2.0, A-GPS, WLAN 802.11g/b, TV out
Transceiver with BL-5J battery pack
Talk time Standby Note
GSM:
Up to 9 hours
WCDMA:
Up to 5 hours
GSM:
Up to 10 days
WCDMA:
Up to 10 days
Talk times are
dependant on
network
parameters and
phone settings

Nokia N900 RX-51
Service Manual Level 1&2
2 Confidential
 Copyright © 2009 NOKIA  All rights reserved
Version 1.0 ISSUE 1
Table of contents
1.Change history ...............................................................................................................................................................................3
2.Copyright..........................................................................................................................................................................................4
3.Warnings and cautions...............................................................................................................................................................5
3.1Warnings ................................................................................................................................................................................5
3.2Cautions ..................................................................................................................................................................................5
4.ESD protection................................................................................................................................................................................6
5.Care and maintenance ................................................................................................................................................................7
6.Battery information .....................................................................................................................................................................8
7.Exploded view................................................................................................................................................................................9
8.Service devices .............................................................................................................................................................................10
9.SW-update.....................................................................................................................................................................................11
10.Disassembly instructions.....................................................................................................................................................12
11.Assembly hints ........................................................................................................................................................................19
12.Solder components................................................................................................................................................................20


Nokia N900 RX-51
Service Manual Level 1&2
3 Confidential
 Copyright © 2009 NOKIA  All rights reserved
Version 1.0 ISSUE 1
1. CHANGE HISTORY
Status Version No. Date Comments
Approved 1.0 25.08.2009 First approved version
The purpose of this document is to help NOKIA service levels 1 and 2 workshop technicians to
carry out service to NOKIA products. This Service Manual is to be used only by authorized NOKIA
service suppliers, and the content of it is confidential. Please note that NOKIA provides also other
guidance documents (e.g. Service Bulletins) for service suppliers, follow these regularly and
comply with the given instructions.
While every endeavor has been made to ensure the accuracy of this document, some errors may
exist. If you find any errors or if you have further suggestions, please notify NOKIA using the
address below:
CMO Operation & Logistics
Training and Vendor Development
Multimedia Creation & Support
mailto:[e-mail]
Please keep in mind also that this documentation is continuously being updated and modified,
so watch always out for the newest version.

Nokia N900 RX-51
Service Manual Level 1&2
4 Confidential
 Copyright © 2009 NOKIA  All rights reserved
Version 1.0 ISSUE 1
2. COPYRIGHT
Copyright © 2009 Nokia. All rights reserved.
Reproduction, transfer, distribution or storage of part or all of the contents in this document in
any form 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.

Nokia N900 RX-51
Service Manual Level 1&2
5 Confidential
 Copyright © 2009 NOKIA  All rights reserved
Version 1.0 ISSUE 1
3. WARNINGS AND CAUTIONS
Please refer to the phone’s user guide for instructions relating to operation, care and
maintenance including important safety information. Note also the following:
3.1 Warnings
1. 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.
2. THE HANDPORTABLE TELEPHONE MUST NOT BE OPERATED IN AREAS LIKELY TO CONTAIN
POTENTIALLY EXPLOSIVE ATMOSPHERES, EG PETROL STATIONS (SERVICE STATIONS), BLASTING
AREAS ETC.
3. 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.
3.2 Cautions
1. Servicing and alignment must be undertaken by qualified personnel only.
2. Ensure all work is carried out at an anti–static workstation and that an anti–static wrist
strap is worn.
3. Use only approved components as specified in the parts list.
4. Ensure all components, modules screws and insulators are correctly re–fitted after servicing
and alignment.
5. Ensure all cables and wires are repositioned correctly

Nokia N900 RX-51
Service Manual Level 1&2
6 Confidential
 Copyright © 2009 NOKIA  All rights reserved
Version 1.0 ISSUE 1
4. ESD PROTECTION
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 Nokia After Market Services representative.

Nokia N900 RX-51
Service Manual Level 1&2
7 Confidential
 Copyright © 2009 NOKIA  All rights reserved
Version 1.0 ISSUE 1
5. CARE AND MAINTENANCE
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 N900 RX-51
Service Manual Level 1&2
8 Confidential
 Copyright © 2009 NOKIA  All rights reserved
Version 1.0 ISSUE 1
6. BATTERY INFORMATION
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.
Shortcircuiting 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 batteries in a fire! Dispose of batteries according to local regulations (e.g.
recycling).
Do not dispose as household waste.

Nokia N900 RX-51
Service Manual Level 1&2
9 Confidential
 Copyright © 2009 NOKIA  All rights reserved
Version 1.0 ISSUE 1
7. EXPLODED VIEW
Only available as
assembly
These parts can not be
reused after removal
Ver. 1.0
A1=TOUCH WINDOW ASSY
(I0003 - I0005)
A2=LIGHT SWAP PACKAGE
(I0203 - I0212, I9998)
A3=B-COVER ASSY
(I0214 - I0215)
A-COVER ASSY
I0001
A-COVER FRAMING
I0002
TOUCH WINDOW ASSY
I0003
EARP 29R
I0004
EARPIECE ADHESIVE
I0005
LCD AM 800x480
I0006
MAIN FLEX ASSY
I0101
SLIDE ASSY
I0102
SCREW M1.4x2.8
I0007
QWERTY COVER ASSY
I0201
QWERTY KEYMAT
I0202
QWERTY
DOME SHEET ASSY
I0203
LIGHT PROTECTION FOIL
I0204
LIGHT SWAP PWB
I0205
AUDIO SHIELD LID
I0206
BB SHIELD LID
I0207
WLAN/BT SHIELD LID
I0208
GPS SHIELD LID
I0209
CELLMO LID
I0210
EMMC SHIELD LID
I0xxx
CHGR SHIELD LID
I0xxx
WATER INGRESS LABEL
I9998
CAMERA MOD 5MP
I0213
CONN A/V 3.5mm
I0214
B-COVER
I0215
GPS ANTENNA ASSEMBLY
I0216
CELLMO
ANTENNA ASSEMBLY
I0217
STYLUS
I0218
SCREW M1.4x5.0
I0219
SCREW RF1.4x4
I0220
BATTERY COVER ASSY
I0221
TYPE LABEL
I0212
MEMORY CARD PCB
I0211

Nokia N900 RX-51
Service Manual Level 1&2
10 Confidential
 Copyright © 2009 NOKIA  All rights reserved
Version 1.0 ISSUE 1
8. SERVICE DEVICES
FLS-5 Flash Device CA-101 Service Cable
AC-10 Travel Charger
SS-210 Camera removal tool
RJ-230
SS-206
Domesheet alignment tool
BL-5J Battery
SS-100 Camera removal tool
NMP standard toolkit (v2)
For more information, refer to the
Service Bulletin (SB-011) on NOKIA
Online. Supplier or manufacturer
contacts for tool re-order can be
found in “Recommended service
equipment” document on NOKIA
Online.

Nokia N900 RX-51
Service Manual Level 1&2
11 Confidential
 Copyright © 2009 NOKIA  All rights reserved
Version 1.0 ISSUE 1
9. SW-UPDATE
Flash concept- (Point of Sales)
To use the FLS-5 Flash Dongle, follow the user guide inside the sales package.
Please check always for the latest version of flash software, wich is available on Nokia Online.

Nokia N900 RX-51
Service Manual Level 1&2
12 Confidential
 Copyright © 2009 NOKIA  All rights reserved
Version 1.0 ISSUE 1
10. DISASSEMBLY INSTRUCTIONS
1) Nokia N900 disassembly. 2) You must use the Nokia Standard Toolkit version
2, the AV plug and the SS-100 or SS-210 camera
removal tool.
3) Protect the touch window with protective film. 4) Use the finger groove to release the BATTERY
COVER ASSY.
5) Remove the battery cover. If there is a battery
inserted, remove it also.
6) Unscrew the four Phillips size 00 screws in the
order shown. Do not use them again.

Nokia N900 RX-51
Service Manual Level 1&2
13 Confidential
 Copyright © 2009 NOKIA  All rights reserved
Version 1.0 ISSUE 1
7) Carefully lift up the upper block to gain access to
the MAIN FLEX CONNECTOR. Disconnect the flex from
the engine board with the SS-93. Be careful not to
damage the connector.
8) The upper block can now be separated.
9) Unscrew the two TORX+ size 6 screws in the order
shown. Do not use them again.
10) Use the SS-93 to release the clips holding the
QWERTY COVER ASSY.
11) Make sure that all the clips are released. 12) Remove the QWERTY COVER ASSY.

Nokia N900 RX-51
Service Manual Level 1&2
14 Confidential
 Copyright © 2009 NOKIA  All rights reserved
Version 1.0 ISSUE 1
13) Then remove the QWERTY KEYMAT. 14) Use the SS-93 to carefully lift up the engine
board.
15) While removing the engine board, be careful
not to damage the USB connector.
16) Remove the STYLUS by pulling it as shown.
17) Use the SS-93 to carefully detach the CELLMO
ANTENNA ASSEMBLY. Then remove the antenna.
18) Release the GPS ANTENNA ASSEMBLY carefully
with the SS-93.

Nokia N900 RX-51
Service Manual Level 1&2
15 Confidential
 Copyright © 2009 NOKIA  All rights reserved
Version 1.0 ISSUE 1
19) Remove the antenna. 20) Release the AV connector with the AV plug and
remove the connector.
21) Push the camera removal tool SS-100 down
until the camera retaining clips are released.
22) Lift up the SS-100 and remove the CAMERA.
23) Release the DOMESHEET with the dental tool and
peel it off. Be aware of the sharp point of the dental
tool - be careful not to injure yourself!
24) Do not use the DOMESHEET again.

Nokia N900 RX-51
Service Manual Level 1&2
16 Confidential
 Copyright © 2009 NOKIA  All rights reserved
Version 1.0 ISSUE 1
25) Move the slide to the middle... 26)... Until all six screws become visible. Unscrew
the six Phillips size 00 screws in the order shown.
Do not use them again.
27) Use the SS-93 to slightly lift up the SLIDE ASSY so
that LCD connector is revealed.
28) Next disconnect the LCD connector from the
SLIDE ASSY with the SS-93. While opening the
connector, be careful not to damage the flexes.
29) The SLIDE ASSY can now be separated.
30) Use the SS-93 to unlock the locking mechanism
of the LCD connector.

Nokia N900 RX-51
Service Manual Level 1&2
17 Confidential
 Copyright © 2009 NOKIA  All rights reserved
Version 1.0 ISSUE 1
40) Disconnect the LCD connector by pulling out the
touch window flex carefully.
41) Use the SS-93 to lift up the LCD display and then
remove it.
42) Remember to protect the LCD display with a
protective film.
43) Use the dental tool to release the earpiece.
44) Remove the earpiece with the tweezers. The
earpiece adhesive cannot be reused.
45) Release the A-COVER FRAMING with the SRT-6.
Insert the SRT-6 between the frame and the A-
COVER ASSY and slide the SRT-6 around the edges.

Nokia N900 RX-51
Service Manual Level 1&2
18 Confidential
 Copyright © 2009 NOKIA  All rights reserved
Version 1.0 ISSUE 1
46) Remove the framing. 47) Release the A-COVER ASSY with the SRT-6.
48) Remove the A-COVER ASSY. 49) Nokia N900 disassembly is now complete.
-END OF DISASSEMBLY-

Nokia N900 RX-51
Service Manual Level 1&2
19 Confidential
 Copyright © 2009 NOKIA  All rights reserved
Version 1.0 ISSUE 1
11. ASSEMBLY HINTS
1) Tighten the six Phillips size 00 screws to the
torque of 15 Ncm in the order shown.
2) Tighten the four Phillips size 00 screws to the
torque of 15 Ncm in the order shown.
3) Tighten the two TORX + size 6 screws to the
torque of 6 Ncm in the order shown.

Nokia N900 RX-51
Service Manual Level 1&2
20 Confidential
 Copyright © 2009 NOKIA  All rights reserved
Version 1.0 ISSUE 1
12. SOLDER COMPONENTS
G4210
X6310X6311 S4313X7503
X7501
X2700X6189
V1310 X4202
S4314
X7504
S4312 S4301S4311X6201
X6202
V1311 X4201
V1312V1313V1314V1315
X4203X4204
Ver. 1.0
TOP
BOTTOM