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

[This page intentionally blank]

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		Yes
totally
dead?
	No
Flash		Yes
programming
does not work?
	No
Phone does not		Yes
start up or phone
is jammed?
	No
Charging does		Yes
not work?
	No
Does the phone		No
read the SIM
card?

Phone is dead

Flash

faults

Phone is jammed

Charger

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

Does the Keypad work?

Yes

Does the Camera work?

Yes

DoesENDthe FCI

work?

Yes

No

Yes

Yes

No

No

No

END

FM radio

Audio

faults

Display

faults

Keypad

faults

Camera

faults

FCI faults

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

Failure in

VBAT line,

No

(meas. on X2000)?

check: X2000

Yes

Is voltage

Check: L2200

=3,7VDC at L2200 and

No

and C2239

C2239

Yes

Is Pin 1 on							Check R2423,
S2419 "high" when
				No
power key is not							C2402
pressed?
	Yes

	Is Pin1 on
	S2419=0VDC when	No	Check S2419,
	power key		PWB
	is pressed?
	Yes
	Dead2		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

Check: B2200,

C2241, C2210,

J2802 = 32.8kHz,

No

1.8Vpp?

PWB then

replace D2200

Yes

See Waveform 1

Is

PURX=1.8VDC

Replace

on J2800 1sec. after

No

power key

D2200, PWB

is pressed?

Yes

Waveform 1

Is VR3=2.78VDC

Check C2234

No

then replace

seen at C2234?

D2200, PWB

Yes

Is there a

Check R2902,

26MHz clock

No

C2902

(typ) 850mVpp

at R2902?

Waveform 2

See Waveform 2

Yes

Retest

Phone is

Jammed

Issue 1 11/2005	COMPANY CONFIDENTIAL	9
	Copyright © 2005 Nokia. All Rights Reserved.