C905
1222-9526 rev. 1
ABOUT
AB
O
U
T
ABOUT
General information
The purpose of this document is to provide enhanced technical information for Sony Ericsson
repair technicians in order to assist during service, repair and troubleshooting operations on Sony
Ericsson mobile phones. It should be used as a complement to other repair instructions and tools
as notifi ed by the local Sony Ericsson representative.
To search for components throughout the entire document use the “search” function in Adobe
Acrobat Reader 7.0 (or later version) and enter the component name or other word. Use zoom to
enlarge.
For easier navigation of the document you can use the bookmarks that appear in the Bookmarks
tab on the left side of the Adobe Acrobat Reader window. Each bookmark jumps to a page in the
document.
Disclaimer
This document is Sony Ericsson confi dential and should be treated as confi dential in accordance
with the agreement with Sony Ericsson. This document is intended for use by authorized service
technicians only. Sony Ericsson is not to be held responsible for any damages or losses caused
intentionally or unintentionally due to unauthorised use of the information in this document.
Rev.
Date
Changes / Comments
1
12/05/2008
Initital revision.
Revision History
Con
tents
ABOUT 2
Contents 2
Equipment List
3
TROUBLESHOOTING 8
Power On/Off Problems
8
USB and Software Flash Problems
8
Dead Phone Problems
9
Display Problems
10
Display Illumination Problems
11
Opto Sensor Problems
11
On-Off Key Problems
12
Numeric Keypad &
Camera Snap Button Problems
12
Navigation Keypad & Game Button Problems 13
Volume Button Problems
13
Camera Play and Mode Button Problems
14
Numeric Keypad LED Problems
14
Navigation Keypad LED Problems
15
Auto Focus LED Problems
15
Back Side LED Problems
16
Tally LED Problems
16
Camera Snap Button LED Problems
17
Camera Navigation LED Problems
17
Trickle Charge LED Problems
18
Xenon Flash Problems
18
Multimedia Combo Chip Problems
19
Camera Problems
19
Camera Cover Detect Problems
20
TV Out Problems
20
Charging Problems
21
USB/VBUS Charging Problems
21
SIM Problems
22
Memory Stick Problems
22
Primary & Secondary Mic Problems
23
Ear Speaker Problems
23
Loudspeaker Problems
24
Handsfree (PHF) Problems
24
FM Radio Problems
25
FM Radio Antenna Problems
25
Bluetooth Problems
26
WLAN Problems
26
GSM Problems
27
WCDMA I, II and V Problems
27
WCDMA VIII Problems
28
A-GPS Problems
28
Accelerometer Problems
29
Vibrator Problems
29
Real Time Clock Problems
30
Slide Sensor Problems
30
System Connector Protection Test
31
Current Consumption Test
31
Backup Capacitor Test
33
Charging Test
33
ASIC Revision Test
34
Measurement Points Pictures
35
MEASUREMENT POINTS
52
Front Side
52
Back Side
53
Top Schematic
54
Audio Top
55
Audio Analog
56
Audio Digital
57
Audio FM Radio
58
Application & System Performance Top
59
System Top
60
System Control - Clocks & Resets
61
System Memories
62
System PoP IF
63
Power Top
64
Power Regulators & Charging
65
Power Imaging
66
Power ASICs
67
Power WLAN
68
Connectivity Top
69
Connectivity I2C & ADC
70
Connectivity Cards
71
Connectivity 72
Connectivity Keypad
73
Connectivity Video Companion Chip
74
Imaging Top
75
Imaging Display
76
Imaging Camera
77
Imaging LMU & Flash
78
Access Top
79
Access GSM & UMTS
80
Access Bluetooth
81
Access AGPS
82
Access WLAN
83
Test 84
COMPONENT OVERVIEW
85
Front Side
85
Back Side
86
FUNCTIONAL OVERIEW
87
Technical Description
87
Platform Block Diagram
99
Block Diagram Power Distribution
100
Block Diagram Clocking Concept
101
APPENDIX 102
Replaceable Parts
102
Components - L2200, L4201-04
103
Components - L2406, L4200
103
Components - N1210, N1211
104
Components - N1510, N2200
104
Components - N1300, N2206
105
Components - N2212, N2213
105
Components - N2300, N2410, N2411
106
Components - N2420, N2421, N2422
107
Components - N2500, N2700, N3100
108
Components - N3101, N4400, S2415
109
Components - V2200, V2202
109
Components - V2412, V2417
109
Components - V2414-16, V2470, V4201
110
Components - V4203, X1200, X1210-11
110
Components - X1540, X2201
111
Components - X2401, X2402
111
Components - X2410, X4200, X4300
112
Components - X4311-15, X4400
112
Components - X4410, Z2400, Z4200-02
113
Keyboard FPC Schematics
114
Troubleshooting Software Documentation
115
Troubleshooting Fixture Setup Instructions 122
SEMC Troubleshooting Manual
2
(124)