Nokia 7270 Service Manual
Issue 2 03/2005
Nokia Customer Care
11
COMPANY CONFIDENTIAL
Issue 2 03/2005
Copyright © 2005 Nokia. All Rights Reserved.
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Charging Failure
Charging fails and no current
drawn from ‘charger’
Measure Vchar voltage
on V2000. Is it > 3.0V?
Check:
X2003, F2000, L2000, V2000,
C2005, C2006 and PWB
Recalibrate charger circuitry
and retest. Did it work?
D2200 (UEMEK) is faulty
END
Yes
Yes
Yes
No
No
Display information when charger
connected: “Not charging”
Recalibrate charger circuitry
and retest. Did it work?
Verify through Phoenix that BSI=
~68k Ohm (BL-4C) and BTEMP=
~47k Ohm @ roomtemperature
(~25 C)
Check:
BSI: Battery (BL-4C), R2015
C2003, R2361, R2362 and PWB
BTEMP: R2000, C2004, R2360,
R2363 and PWB
Measure voltage on R2200 towards
D2200. Should be the same as
Vbat voltage
Check:
R2200, D2200 (UEMEK) and PWB
Phone should work. If not,
change whole engine board
Yes
Yes
Yes
Yes
No
No
No
END