Nokia 6150 Service & Repair Hints

CONFIDENTIAL
Service & Analysis Center Europe
Training Team
version 1.0 / 19.10.1999 Page 16 of 41
Contact service – COBBA serial
Contact Service
Check via WINTESLA / Testing / Selftest
which kind of selftest is faulty
COBBA Serial
bus failed
Check VBB 2,8V
DC on pin 27, 53
of COBBA
Check VCOBBA
2,8V DC on pin
7, 12, 21, 25 of
COBBA
Check VBB 2,8V
DC on pin 55 of
N100, CCONT
Change or check
soldering of
N100, C107
Check VCOBBA
2,8V DC on pin
22 of N100
Change or check
soldering of
N100, C133
Check soldering
of COBBA or
change COBBA
Check soldering
of MAD or
change MAD
Yes
Ok
Ok
Ok
No
No
No
No
N250 COBBA faulty / poor soldering
• Check VBB 2,8V DC on pin 27, 53 from COBBA
• Check VCOBBA 2,8V DC on pin 7,12,21,25, from COBBA
• Check COBBACKL 13MHz 3,2Vpp pin 45 from COBBA
• Resolder COBBA
• Internal error of COBBA
Note! Rewrite SIMLOCK and IMEI entries with use of the Nokia security SW (SSSW) and make a SW-update or
send this phones to the SACE, if this procedure is not permitted to you

Nokia 6150 Specifications

General

Brand	Nokia
Model	6150
Category	Cell Phone
Language	English