Nokia 7360, RM-127 Troubleshooting Instruction
Nokia Customer Care
6(a) - Baseband
Troubleshooting
Instructions
Issue 1 11/2005 COMPANY CONFIDENTIAL
Copyright © 2005 Nokia. All Rights Reserved.
RM-127
Nokia Customer Care 6(a) - Baseband Troubleshooting Instructions
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2 COMPANY CONFIDENTIAL Issue 1 11/2005
Copyright © 2005 Nokia. All Rights Reserved.
RM-127
6(a) - Baseband Troubleshooting Instructions Nokia Customer Care
Table of Contents
Page No
Test Points........................................................................................................... 5
Troubleshooting.................................................................................................. 6
Top level flow 1.................................................................................................. 6
Top level flow 2.................................................................................................. 7
Phone is dead 1................................................................................................. 8
Phone is dead 2................................................................................................. 9
Flash faults 1.................................................................................................... 10
Flash faults 2.................................................................................................... 11
Phone is jammed 1.......................................................................................... 12
Phone is jammed 2.......................................................................................... 14
Charger............................................................................................................ 15
SIM Card.......................................................................................................... 16
Audio faults 1................................................................................................... 17
Audio faults 2................................................................................................... 18
Audio faults 3................................................................................................... 19
Audio faults 4................................................................................................... 20
Earpiece........................................................................................................... 21
Display faults 1................................................................................................. 22
Display faults 2................................................................................................. 23
Keypad faults 1................................................................................................ 24
Keypad faults 2................................................................................................ 25
Camera faults 1................................................................................................ 26
Camera faults 2................................................................................................ 27
Self test............................................................................................................ 28
FM radio 1........................................................................................................ 29
FM radio 2........................................................................................................ 30
Issue 1 11/2005 COMPANY CONFIDENTIAL 3
Copyright © 2005 Nokia. All Rights Reserved.
RM-127
Nokia Customer Care 6(a) - Baseband Troubleshooting Instructions
[This page intentionally blank]
4 COMPANY CONFIDENTIAL Issue 1 11/2005
Copyright © 2005 Nokia. All Rights Reserved.
RM-127
6(a) - Baseband Troubleshooting Instructions Nokia Customer Care
Test Points
Issue 1 11/2005 COMPANY CONFIDENTIAL 5
Copyright © 2005 Nokia. All Rights Reserved.
RM-127
Nokia Customer Care 6(a) - Baseband Troubleshooting Instructions
Troubleshooting
■ Top level flow 1
TOP
Phone is
totally
dead?
No
Flash
programming
does not work?
No
Phone does not
start up or phone
is jammed?
No
Charging does
not work?
Yes
Yes
Yes
Yes
Phone is
dead
Flash
faults
Phone is
jammed
Charger
No
Does the phone
read the SIM
card?
No
SIM Card
TOP2
6 COMPANY CONFIDENTIAL Issue 1 11/2005
Copyright © 2005 Nokia. All Rights Reserved.
RM-127
6(a) - Baseband Troubleshooting Instructions Nokia Customer Care
■ Top level flow 2
Top2
Does Does the
FM radio work?
Yes
Audio
faults?
No
Has the display
or LEDs a
problem?
No
No
Yes
Yes
FM r adio
Audio
faults
Display
faults
Does the
Keypad work?
Yes
Does the
Camera work?
Yes
Does the F CI
END
work?
Yes
No
No
No
Keypad
faults
Camera
faults
FCI
faults
END
Issue 1 11/2005 COMPANY CONFIDENTIAL 7
Copyright © 2005 Nokia. All Rights Reserved.
RM-127
Nokia Customer Care 6(a) - Baseband Troubleshooting Instructions
■ Phone is dead 1
Phone is
dead
Is VBAT=3.7VDC
(meas. on X2000)?
Yes
Is voltage
=3,7VDC at L2200 and
C2239
Yes
Is Pin 1 on
S2419 "high" when
power key is not
pressed?
Yes
No
No
No
Failure in
VBAT line,
check: X2000
Check: L2200
and C2239
Check R2423,
C2402
Is Pin1 on
S2419=0VDC when
po wer key
is pressed?
Yes
Dead2
No
Check S2419,
PWB
Retest
8 COMPANY CONFIDENTIAL Issue 1 11/2005
Copyright © 2005 Nokia. All Rights Reserved.
RM-127
6(a) - Baseband Troubleshooting Instructions Nokia Customer Care
■ Phone is dead 2
Dead2
Is Sleep CLK on
J2802 = 32.8kHz,
1.8Vpp?
Yes
on J2800 1sec. after
Is VR3=2.78VDC
Is
PURX=1.8VDC
power k ey
is pressed?
Yes
seen at C2234?
Yes
See Waveform 1
No
No
No
Check: B 2200,
C2241, C2210,
PWB then
replace D2200
Replace
D2200, PWB
Waveform 1
Check C 2234
then replace
D2200, PWB
Is there a
26MHz clock
(typ) 850mVpp
at R2902?
No
Check R2902,
C2902
Waveform 2
Yes
Phone is
Jammed
Issue 1 11/2005 COMPANY CONFIDENTIAL 9
See Waveform 2
Retest
Copyright © 2005 Nokia. All Rights Reserved.
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