Nokia 3210 - Manual (Page 15)

CONFIDENTIAL Service & Analysis Center Europe
Training Team
version 1.0 / 05.11.1999 Page 15 of 37
Contact service COBBA parallel /serial bus fail
COBBA parallel/
serial bus failed
Contact Service
Check via WINTESLA / Testing / Selftest
which kind of selftest is fail
check COBBACLK
13MHZ/ 3,2Vpp on
J201
check soldering or
change N100, C117
check VBB 2,8V on
C117
Check VCOBBA 2,8V
DC on C148
Change or check
soldering of N100,
C148
Check 13MHz RFC
on C301
swap the phone
because MAD or PCB
should be the reason
Change the COBBA
Check COBBA reset
pulse during
initialisation routine
on J343 (see diagram)
swap the phone
because MAD or PCB
should be the reason
check soldering or
change G701, V702
Yes
not oK
oK
not oK
oK
not oK
oK
not oK
oK
oK
not oK