CONFIDENTIAL
8 (18)
Customer Care Europe, Middel East & Africa NHM-8 / RH-9 Repairhints
SCCE Training Group Version 2.0 Approved
2003 Nokia Mobile Phones
Date 10-03-2003
© NMP 2003
Checked by: SCCE
Approved by: Training Group
CHAPTER 3: Phone does not switch on
Phone does not
switch on
Check if
current consumption is around
18mA
(in repair jig with 8VDC).
Check 32.768kHz
(see figure 1)
at C210.
Change B200,
also check C210 for cold or
broken solderings,
probably D200 faulty.
Check that
PWRONX decreases to 0V if
powerswitch is pressed.
Check
VIO 1.8VDC at C207 ,
VCORE1.5VDC at C208,
VANA 2.8VDC at C206,
and VR3 2.8VDC at C227 rise to
their intended values.
Check PURX 1.8VDC at J402,
sleepclock squarewave at J404.
Check / change
S300, R317.
Check lines for shorts to
ground or interruption,
probably UEM D200 faulty.
OK
OK
nOK
Try to make SW-update.
SW-update successful?
If
failuremessage from
prommer is "wrong
manufactor/device ID"
update prommerbox
and flash again.
Flashing ok?
Flashing ok! Realign
and test the phone!
Change flash
D450 and flash again.
Flashing ok?
OK
nOK
Flashing ok! Realign
and test the phone!
OK
OK
nOK
nOK
nOK
nOK
OK
UEM D200 faulty in all
probability.
nOK
UPP D400 faulty in all
probability.
Rewrite IMEI and
SIM lock data !
OK
nOK
OK
Check 26 MHz
(see figure 5)
at J425.
Change Mjoelner.
OK
OK
nOK