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Nokia 3720 Classic Service Manual

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See also: Service Schematics , User Manual
1
Issue 1
SERVICE MANUAL
Level 1&2
CONFIDENTIAL
Copyright © 2009
NOKIA. All rights reserved.
Transceiver characteristics
Band:
RM-518: GSM/EDGE 900/1800/1900
Display:
QVGA display (320 x 240 pixels) 2.2" colour
display,
Up to 16.7 M colours
Camera:
2 Mpix with full screen viewfinder, 4 x digital
zoom, LED flash
Operating System:
Series 40 Platform Release 8.1
Connections:
Bluetooth 2.1 +EDR, 2.5 mm AV connector, Micro
USB, MicroSD card up to 8 GB
Transceiver with BL-6MT battery pack
Talk time
Standby
Up to 7 hours
Up to 450
hours
Nokia 3720 Classic RM-518
Service Manual Level 1&2
Note
Depends on
network
parameters
and phone
settings

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Summary of Contents for Nokia 3720 Classic

  • Page 1 Nokia 3720 Classic RM-518 Service Manual Level 1&2 SERVICE MANUAL Level 1&2 Transceiver characteristics Band: RM-518: GSM/EDGE 900/1800/1900 Display: QVGA display (320 x 240 pixels) 2.2” colour display, Up to 16.7 M colours Camera: 2 Mpix with full screen viewfinder, 4 x digital...

  • Page 2: Table Of Contents

    Exploded view ..........................9 Service devices ..........................10 SW update............................. 11 Disassembly instructions......................12 Assembly hints........................18 11.1 Assembling the C-COVER ...................... 18 11.2 Screw order and torque....................... 19 Solder components ......................... 20 CONFIDENTIAL Copyright © 2008 NOKIA. All rights reserved. Issue 1...

  • Page 3: Change History

    25.6.2009 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.

  • Page 4: Copyright

    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.

  • Page 5: Warnings And Cautions

    Nokia 3720 Classic RM-518 Service Manual Level 1&2 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.

  • Page 6: Esd Protection

    Nokia 3720 Classic RM-518 Service Manual Level 1&2 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.

  • Page 7: Care And Maintenance

    Nokia 3720 Classic RM-518 Service Manual Level 1&2 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.

  • Page 8: Battery Information

    Nokia 3720 Classic RM-518 Service Manual Level 1&2 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.

  • Page 9: Exploded View

    Nokia 3720 Classic RM-518 Service Manual Level 1&2 7. EXPLODED VIEW See corresponding ITEM/CIRCUIT REF in the Spare Parts Service Bulletins on NOL. CONFIDENTIAL Copyright © 2009 NOKIA. All rights reserved. Issue 1...

  • Page 10: Service Devices

    AC-8 charger CA-101 Service Cable 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. CONFIDENTIAL Copyright ©...

  • Page 11: Sw Update

    Flash concept – (Point of Sales) To use the FLS-5 Flash Dongle, you have to follow the user guide inside the sales package. Please check always for the latest version of flash software which is available on Nokia Online. CONFIDENTIAL Copyright ©...

  • Page 12: Disassembly Instructions

    Nokia 3720 Classic RM-518 Service Manual Level 1&2 10. DISASSEMBLY INSTRUCTIONS 10. DISASSEMBLY INSTRUCTIONS Note: All devices with damage caused by liquid and/or intrusion need to be Note: All devices with damage caused by liquid and/or intrusion need to be sent to Level 3 for repair.
  • Page 13 Nokia 3720 Classic RM-518 Service Manual Level 1&2 7) Release the A-COVER ASSY with SRT-6. Start 8) Slide SRT-6 towards the top side… from the bottom, under the rubber sealing. 9) …under the rubber sealing. 10) Do the same procedure on the opposite side of the A-COVER ASSY.
  • Page 14 Nokia 3720 Classic RM-518 Service Manual Level 1&2 13) Remove the KEYPAD. 14) Protect the LCD with protection foil and unscrew the six screws with Torx 6+. 15) Remove the PWB including the LCD and UI SHIELDING LID ASSY. 16) Release the snaps of the UI SHIELDING LID 17) Remove the UI SHIELDING LID ASSY.
  • Page 15 Nokia 3720 Classic RM-518 Service Manual Level 1&2 18) Flip open the LCD… 19) …and remove the FLEX SHIELDING LID ASSY using dental tool/tweezers. Do not use the FLEX SHIELDING LID ASSY again. 20) Carefully disconnect the LCD with SS-93.
  • Page 16 Nokia 3720 Classic RM-518 Service Manual Level 1&2 22) Release the CAMERA MODULE using SS-88. 23) Pull out the USB COVER. 24) Do not use the USB COVER again. 25) Carefully remove the ANTENNA MODULE ASSY 26) Separate the ANTENNA MODULE ASSY inclusive using SS-93.
  • Page 17 Nokia 3720 Classic RM-518 Service Manual Level 1&2 27) Remove the IHF SPEAKER with tweezers. End of disassembly CONFIDENTIAL Copyright © 2009 NOKIA. All rights reserved. Issue 1...

  • Page 18: Assembly Hints

    Nokia 3720 Classic RM-518 Service Manual Level 1&2 11. ASSEMBLY HINTS • Note: All devices with damage caused by liquid and/or intrusion need to be sent to Level 3 for repair. • Visually check the A- and B-COVER for damages (for example rubber gaskets, cover hooks/clips).

  • Page 19: Screw Order And Torque

    Nokia 3720 Classic RM-518 Service Manual Level 1&2 11.2 Screw order and torque 1) Tighten the screws to the torque of 18 Ncm in 2) Tighten the screw to the torque of 7 Ncm in the the order shown. order shown.

  • Page 20: Solder Components

    Nokia 3720 Classic RM-518 Service Manual Level 1&2 12. SOLDER COMPONENTS 12. SOLDER COMPONENTS Solder components only for Level 2 Solder components only for Level 2 CONFIDENTIAL Copyright © 2009 NOKIA. All rights reserved. Issue 1...

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