User Guide

Nokia Customer Care Baseband Description and Troubleshooting
6255/6255i6256/6256i (RM-19)
Issue 2 05/2005 ©2005 Nokia Corporation Company Confidential Page 71
FM Radio
FM Radio
faults
Is the FM radio
working?
Power on the phone
and turn FM radio on
by Phoenix
Measure VFlash2
(VCCD/VCCA/
VCCVCO) at C6103/
C6116/C6117/L6101.
Is it 2.8V?
Measure FM1=1.8V,
FM2=11 Khz,
FM3=1.8V, and
FM4=32 Khz. Is it
OK?
NO
Check solder on
N6100, X101, and
replace N6100 if not
working.
NO
Check VFlash2 line
Change TikuEDGE
D2800
Check L6102, L6103,
C6104, C6109,
C6115, C2008,
C2009, C2010,
C2011. If OK, check
Tomahawk
connector (X2000)
on pin 11, 12, 13, 14
YES
YES
NO
NO
END
Measure FMANT at
L6103. Is it 1.0V?
Does the FM radio
produce a "Bong"
sound when
changing channels
(frequencies)?
Check soldering
under C6100, R6101,
R6103, C6102. If not
working, then
change FM radio
chip (N6100).
FM
Radio
faults 2
YES
NO
YES
YES
NO
YES
(From
Radio
Faults 2)
NO
NO