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CONFIDENTIAL 1 (2)




Nokia Mobile Phones Service Bulletin No. SB-050/27.06.01
Technical Support, Europe & Africa

NSM-3


NEW HARDWARE VERSIONS (1903 & 1905)

New HW versions 1903 and 1905 has been taken in use.

Changes made from version 1800 to version 1903:

- PCB version changed from RM7L_18 to RM7L_19
- MAD2 version changed from ROM5 to ROM6
- following resistor and capacitors have been changed due to productional
reasons

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 this 1903
HW version

ITEM CODE DESCRIPTION
Delete C163 2320522 CHIPCAP NPO 2P7 C 50V 0402
Add C163 2320602 CHIPCAP NPO 4P7 C 50V 0402
Delete C703 2320526 CHIPCAP NPO 3P9 C 50V 0402
Add C703 2320532 CHIPCAP NPO 6P8 C 50V 0402
Delete C164 2320536 CHIPCAP NPO 10P J 50V 0402
Add C164 2320530 CHIPCAP NPO 5P6 C 50V 0402
Delete C162 2320540 CHIPCAP NPO 15P J 50V 0402
Add C162 2320524 CHIPCAP NPO 3P3 C 50V 0402
Delete C168 2320546 CHIPCAP NPO 27P J 50V 0402
Add C168 2320534 CHIPCAP NPO 8P2 C 50V 0402
Delete R764 1430758 CHIPRES 0W06 1K5 J 0402
Add R764 1430762 CHIPRES 0W06 2K2 J 0402

Changes made from version 1903 to version 1905:

- Value for two resistors (R205, R206) has been changed smaller
- To reduce phase error capacitor C837 has been added
- To decrease power AM-ripple and give more marginal to modulation
spectrum value for two capacitors (C540, C541) has been changed
smaller
- Value for one capacitor (C803) and resistor (R802) has been changed to
improve TX spectrum and phase error

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 this 1905
HW version



NSM-3 SB-050
CONFIDENTIAL 2 (2)




ITEM CODE DESCRIPTION
Delete R205 1430762 CHIPRES 0W06 2K2 J 0402
Add R205 1430702 CHIPRES 0W06 12R J 0402
Delete R206 1430762 CHIPRES 0W06 2K2 J 0402
Add R206 1430702 CHIPRES 0W06 12R J 0402
Delete R802 1430762 CHIPRES 0W06 2K2 J 0402
Add R802 1430770 CHIPRES 0W06 4K7 J 0402
Delete C540 2320556 CHIPCAP NPO 68P J 50V 0402
Add C540 2320552 CHIPCAP NPO 47P J 50V 0402
Delete C541 2320556 CHIPCAP NPO 68P J 50V 0402
Add C541 2320552 CHIPCAP NPO 47P J 50V 0402
Delete C803 2320564 CHIPCAP NPO 150P J 50V 0402
Add C803 2320576 CHIPCAP X7R 470P J 50V 0402
Add C837 2320526 CHIPCAP NPO 3P9 C 50V 0402




NSM-3 SB-050