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CONFIDENTIAL 1 (3)
Nokia Mobile Phones Service Bulletin No. SB-054/11.09.01
Technical Support, Europe & Africa
NSM-3
NEW PWB VERSIONS RM7L_20 & RM7L_21
New PWB versions RM7L_20 and RM7L_21 have been released for NSM-3.
1. Changes made from version RM7L_19 to version RM7L_20:
- display guiding pin hole enlarged from 1.6 mm to 1.8 mm
- due to material availability, coil L800 changed to physically smaller size
(from 1206 to 0805). When ordering spare parts the size has to be taken
account (see table below)
- HW version changed from 1910 to 2000
HW VERSION ITEM CODE DESCRIPTION
L800 3648808 CHIP COIL 10U K Q50 1206
L800 3645073 CHIP COIL 10U K 0.015A 1R15 0805
Layout diagram for RM7L_20 in Appendix I
2. Changes made from version RM7L_20 to version RM7L_21:
- 5 UHVLVWRU UHSODFHG ZLWK D VKRUW FLUFXLW
- Resistors R205 and R206 replaced with a short circuit
- HW version changed from 2000 to 2100
ITEM CODE DESCRIPTION
Del R781 1430690 CHIP RES JUMPER 0R0 0402
Del R205 1430702 CHIP RES 12R J 0W06 0402
Del R206 1430702 CHIP RES 12R J 0W06 0402
Layout diagram for RM7L_21 in Appendix II
Note 1: No changes are needed for phones coming to the service.
Note 2: Only MCU SW version 5.27 or newer can be used with these 2000
and 2100 HW versions
NSM-3 SB-054
CONFIDENTIAL 2 (3)
APPENDIX I
Layout diagram for RM7L_20 (HW 2000)
NSM-3 SB-054
CONFIDENTIAL 3 (3)
APPENDIX II
Layout diagram for RM7L_21 (HW 2100)
NSM-3 SB-054