C905
1222-9526 rev. 1
ABOUT
ABOUT
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 notified 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 confidential and should be treated as confidential 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
112/05/2008Inititalrevision.
Revision History
Contents
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 Problems13
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
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