Sony Ericsson R800i User manual

1246-2437 rev 1 Page 1



Sony Ericsson Mobile Communications AB – Company Internal

Troubleshooting Guide

- electrical -

R800i, R800a, R800x, R800at, Z1

Trouble Shooting Guide (elect)

1246-2437 rev 1



Sony Ericsson Mobile Communications AB –

Company Internal

2(16)

CONTENTS

1Troubleshooting Flow......................................................................3

1.1

Display...................................................................................................3

1.2

Illumination............................................................................................4

1.3

Keys & Sensors.....................................................................................5

1.4

Alert ......................................................................................................7

1.5

Audio .....................................................................................................8

1.6

On/Off ....................................................................................................9

1.7

Charging & Capacity...........................................................................10

1.8

SIM.......................................................................................................11

1.9

Camera ................................................................................................12

1.10

Data Communication..........................................................................13

1.11

Memory Stick ......................................................................................14

1.12

Network & Signal ................................................................................15

2Revision History.............................................................................16

For general information about troubleshooting, refer to

1220-1336: Generic Repair Manual - electrical

Trouble Shooting Guide (elect)

1246-2437 rev 1



Sony Ericsson Mobile Communications AB –

Company Internal

3(16)

1 Troubleshooting Flow

1.1 Display

Symptom:

Replace:

Display problem

X4300, if damaged vision check pin A4, A6, A7, A9 and B2-3, B5-6, B8-9

Z4300, Z4301 or Z4302

Trouble Shooting Guide (elect)

1246-2437 rev 1



Sony Ericsson Mobile Communications AB –

Company Internal

4(16)

Troubleshooting Flow

1.2 Illumination

Symptom:

Replace:

No Display illumination

X4300,if damaged vision check pin A2 and A3

L5600 or L5601, if more than 1 Ω

C5606 or C5613, if short circuit

V5600

N5600

Symptom:

Replace:

No Flash LED

V4400

N4400

Symptom:

Replace:

R G B MMI LED s

V4802

N5600

Trouble Shooting Guide (elect)

1246-2437 rev 1



Sony Ericsson Mobile Communications AB –

Company Internal

5(16)

Troubleshooting Flow

1.3 Keys & Sensors

Symptom:

Replace:

On / Off key problems

S4807

N4800

Symptom:

Replace PSN key problems

S4810

N4800

Symptom:

Replace Directional Control (Left pad)

Right

key problems

S5000

N4800

Symptom:

Replace Directional Control (Left pad)

Left

key problems

S5001

N4800

Symptom:

Replace Directional Control (Left pad)

Down

key problems

S5002

N4800

Symptom:

Replace Directional Control (Left pad)

key problems

S5003

N4800

Symptom:

Replace Select key problems

S4805

N4801

Symptom:

Replace Start key problems

S4806

N4801

Symptom:

Replace Function Control (Right pad)

key problems

S5007

N4801

Symptom:

Replace Function Control (Right pad)

key problems

S5004

N4801

Symptom:

Replace Function Control (Right pad)

key problems

S5006

N4801

Trouble Shooting Guide (elect)

1246-2437 rev 1



Sony Ericsson Mobile Communications AB –

Company Internal

6(16)

Symptom:

Replace Function Control (Right pad)

key problems

S5005

N4801

Symptom:

Replace Left key problems

S4808

Symptom:

Replace Right key problems

S4809

Symp

tom:

Replace:

Back, Menu ,Home or Search problems

X4300, if damaged vision check pin B31 ,B30 ,A28 and A24

N4802

Symptom:

Replace:

Touch Pad problems

X5000, if damaged vision check all pins

Symptom:

Replace:

Display Touch Sensor problems

X4300, if damaged vision check pin A25 - A27, A31 and B26 - B29

Symptom:

Replace:

Volume Up key problems

S4803

Symptom:

Replace:

Volume Down key problems

S4804

Sympto

Replace:

Volume Up and Down key problems

N4802

Symptom:

Replace:

Slide Sensor – Phone Closed not detected

B5002

Symptom:

Replace:

Slide Sensor - Phone Open not detected

B5003

Symptom:

Replace:

Proximity sensor problems

X4300, if damaged vision check pin A21, A31 and B23

Symptom:

Replace:

Light Sensor problems

X4300, if damaged vision check pin A2 ,A3 , A5 and A10

Symptom:

Replace:

Compass problems

N5701

Trouble Shooting Guide (elect)

1246-2437 rev 1



Sony Ericsson Mobile Communications AB –

Company Internal

7(16)

Troubleshooting Flow

1.4 Alert

Symptom:

Replace:

Vibrator problems

V5000, if short circuit

B5000

Trouble Shooting Guide (elect)

1246-2437 rev 1



Sony Ericsson Mobile Communications AB –

Company Internal

8(16)

Troubleshooting Flow

1.5 Audio

Symptom:

Replace:

No audio

L3902 ,if more than 1 Ω

Symptom:

Replace:

Microphone 1 (Right)

L5506, L5507 or L5508 ,if more than 3 Ω

B5501

N1200

Symptom:

Replace:

Microphone 2 (Left)

L5503, L5504 or L5505 ,if more than 3 Ω

B5500

N1200

Symptom:

Replace:

No or bad Earphone / Ear speaker

X4300, if damaged vision check pin A14 and A15

V5500, if TP 5500 or TP 5501 is short circuit to GND

N5500

N1200

Symptom:

Replace:

No or bad Left Speaker

V5300, if X5300_M or X5300_P (Left speaker pads) is short circuit to GND

N5300

N1200

Symptom:

Replace:

No or bad Right Speaker

V5301, if X5301_M or X5301_P (Right speaker pads) is short circuit to GND

N5301

N1200

Symptom:

Replace:

No or bad Hands-free (PHF) Microphone

X5401, if damaged vision check pin 1 ,4 and 5

N5400

N1200

Symptom:

Replace:

No or bad Hands-free (PHF) Aux Earphone / Ear speaker

X5401, if damaged vision check pin 2 ,3 and 4

L5402 or L5403 if more than 2 Ω

N5400

N1200

Symptom:

Replace:

No Hands-free (PHF) Microphone – Phone not recognizes PHF set

X5401, if damaged vision check pin 1 ,4 and 5

N5400

Trouble Shooting Guide (elect)

1246-2437 rev 1



Sony Ericsson Mobile Communications AB –

Company Internal

9(16)

Troubleshooting Flow

1.6 On/Off

Symptom:

Replace:

Current draw greater than 300 mA

V3801, if short circuit

N1800 , if getting hot

N1700 ,N1600 or N1701 , if getting hot

Symptom:

Replace:

Current draw when powered off

V3801, if short circuit

N1800 , if getting hot

N1700 ,N1600 or N1701 , if getting hot

Symptom:

Replace:

Using no current when On/Off key is pressed and will not start.

S4807

N4800

Symptom:

Replace:

Draws current when On/Off key is pressed, returns to zero

L3900, L3903 , L3904 or L4001 ,if more than 1 Ω

N4003

Symptom:

Replace:

Other

X3801, if damaged vision check all pins

Trouble Shooting Guide (elect)

1246-2437 rev 1



Sony Ericsson Mobile Communications AB –

Company Internal

10(16)

Troubleshooting Flow

1.7 Charging & Capacity

Symptom:

Replace:

No or bad Charging from USB

X5200, if damaged vision check pin 1 and 5

C5200, if X5200 pin 1 is short circuit to GND

X3801, if damaged

V3802, if short circuit

N3803 , V3803

Symptom:

Replace:

Wrong Battery indicator

N3802

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