Nokia 6021 Service Manual 06(a) rm94 bb trouble
Nokia Customer Care
6(a) - Baseband
Troubleshooting
Issue 1 04/2005 COMPANY CONFIDENTIAL
Copyright © 2005 Nokia. All Rights Reserved.
RM-94
Nokia Customer Care 6(a) - Baseband Troubleshooting Instructions
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2 COMPANY CONFIDENTIAL Issue 1 04/2005
Copyright © 2005 Nokia. All Rights Reserved.
RM-94
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.......................................................................................... 13
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
Self test............................................................................................................ 26
Issue 1 04/2005 COMPANY CONFIDENTIAL 3
Copyright © 2005 Nokia. All Rights Reserved.
RM-94
Nokia Customer Care 6(a) - Baseband Troubleshooting Instructions
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4 COMPANY CONFIDENTIAL Issue 1 04/2005
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6(a) - Baseband Troubleshooting Instructions Nokia Customer Care
Test Points
Issue 1 04/2005 COMPANY CONFIDENTIAL 5
Copyright © 2005 Nokia. All Rights Reserved.
RM-94
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
TOP2
6 COMPANY CONFIDENTIAL Issue 1 04/2005
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RM-94
6(a) - Baseband Troubleshooting Instructions Nokia Customer Care
■ Top level flow 2
Top2
Does phone read
SIM card?
Yes
Audio faults?
No
Display or LED
problem?
No
No
Yes
Yes
SIM card
Audio
faults
Display
faults
Does the
keypad work?
No
Keypad
faults
Yes
END
Issue 1 04/2005 COMPANY CONFIDENTIAL 7
Copyright © 2005 Nokia. All Rights Reserved.
RM-94
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 04/2005
Copyright © 2005 Nokia. All Rights Reserved.
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