W995
1230-1858 rev. 1
ABOUT
Contents
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.
Note
When disassembling and reassembling the phone the instructions and processes described in the
Mechanical Working Instructions, the Generic Repair Manual and the Repair Center Handbook
must be followed.
Rev.
Date
Changes / Comments
1
06/24/2009
Initital revision.
Revision History
ABOUT
Contents 2
Equipment List
3
TROUBLESHOOTING
Power On/Off Problems
7
Dead Phone Problems
7
Display Problems
9
Display Illumination Problems
9
Opto Sensor Problems
10
On Off Key Problems
10
Numeric Keyboard Problems
11
Navigation Keys Problems
11
Operation Keys Problems
12
Volume Up and Down Button Problems
12
Camera Button Problems
13
Walkman Key Problems
13
Numeric Keyboard Illumination Problems
14
Navigation Keys Illumination Problems
14
Operation LED Problems
15
Camera Button LED Problems
15
Music LED Problems
16
Trickle Charge LED Problems
16
Flash LED Problems
17
Main Camera Problems
18
VGA/VTF Camera Problems
19
Data Communication Problems
19
Charging Problems
20
USB/VBUS Charging Problems
20
SIM Problems
21
Memory Stick Problems
21
Microphone Problems
22
Earphone Problems
22
Loudspeaker Problems
23
Handsfree (PHF) Problems
24
Audio Jack Problems
25
FM Radio Problems
27
Bluetooth Problems
27
WLAN Problems
28
GSM Network Problems
28
WCDMA Network Problems
29
A-GPS Problems
30
Accelerometer Problems
31
Vibrator Problems
31
Real Time Clock Problems
32
Slide Sensor Problems
32
Video Comapnion Chip Problems
32
System Connector Protection Test
33
Current Consumption Test
33
Backup Capacitor Test
35
Charging Test
35
ASIC Revision Test
36
Measurement Points Pictures
37
MEASUREMENT POINTS
Primary Side
49
Secondary Side
50
Upper PBA
51
Slider Flex Module
52
SIM Flex Module
52
Key Flex Module
52
Top Schematic
53
Audio Top
54
Audio Analog
55
Audio Digital
56
Audio FM Radio
57
Application & System Performance Top
58
System Top
59
System Control - Clocks & Resets
60
System Memories
61
System PoP IF
62
Power Top
63
Power Regulators & Charging
64
Power Imaging
65
Power ASICs
66
Power WLAN
67
Connectivity Top
68
Connectivity I2C & ADC
69
Connectivity Cards
70
Connectivity Connectivity
71
Connectivity Keypad
72
Connectivity Video Companion Chip
73
Imaging Top
74
Imaging Display
75
Imaging Camera
76
Imaging Flash LED Driver
77
Access Top
78
Access GSM & UMTS
79
Access Bluetooth
80
Access AGPS
81
Access WLAN
82
Upper PBA
83
Slider Flex Module
84
SIM Flex Module
84
Key Flex Module
84
COMPONENT OVERVIEW
Primary Side B - C
85
Primary Side D - Z
86
Secondary Side
87
FUNCTIONAL OVERVIEW
Technical Description
88
Platform Block Diagram
100
Block Diagram Power Distribution
101
Block Diagram Clocking Concept
102
APPENDIX
Replaceable Components
103
Components - B1400, B2100, B2400
104
Components - B3100, B4200
104
Components - C2439-40, C4203, L2200
105
Components - L2401-04, L3104, L3120-22 105
Components - L2406, L2440, L2443
105
Components - L3134-35, L3116-17, L4200 105
Components - L4400, N1210, N1211
106
Components - N1400, N1410
107
Components - N14111, N1412
107
Components - N2200, N2205, N2206
108
Components - N2212, N2213, N2410
108
Components - N2411, N2421, N2422
109
Components - N3100, N3102
109
Components - N2420
110
Components - N3101, N3103, N3104
111
Components - N4200, N4401
111
Components - R2449, R2451, R2490
112
Components - V2200, V2202, V2415-16
112
Components - V2417, V3103
112
Components - X1000, X1004-5
113
Components - X1006, X1200, X1500
113
Components - X2201, X2401
113
Components - X2402, X2405, X2410
114
Components - X4300, X4301, Z1400
115
Components - Z2400, Z4200-02
115
Troubleshooting Software Documentation 116
Troubleshooting Fixture Setup Instructions 123
SEMC Troubleshooting Manual
2
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