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Cell Phone
RM-235
Service manual
Display Backlight And Illumination Troubleshooting - Nokia RM-235 Service Manual
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Contents
Table of Contents
Troubleshooting
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Table of Contents
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RM-235
BB troubleshooting
Display backlight and illumination troubleshooting
Troubleshooting flow
Page 3 –26
COMPANY CONFIDENTIAL
Issue 1
Copyright © 2008 Nokia. All rights reserved.
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Chapters
Table of Contents
13
Table of Contents
27
Table 4 Gps/List of Figures
51
Table of Contents
107
Table of Contents
151
Table of Contents
173
Table of Contents
191
Table of Contents
Troubleshooting
Baseband main troubleshooting
53
Backup battery troubleshooting
55
Dead or jammed device troubleshooting
57
USB troubleshooting
58
SIM card troubleshooting
59
MicroSD card troubleshooting
61
Combo memory troubleshooting
63
Flash programming troubleshooting
64
Charging troubleshooting
67
Clocking troubleshooting
68
Power key troubleshooting
69
User interface troubleshooting
70
Display technical description and troubleshooting
71
Display backlight and illumination troubleshooting
74
LED driver troubleshooting
75
Audio Troubleshooting
76
External microphone troubleshooting
78
Internal earpiece troubleshooting
79
Internal handsfree speaker troubleshooting
80
Internal microphone troubleshooting
81
ALS technical description and troubleshooting
82
Bluetooth and FM radio troubleshooting
85
Bluetooth troubleshooting
91
FM radio troubleshooting
92
GPS troubleshooting
93
GPS failure troubleshooting
96
WLAN Troubleshooting
97
WLAN failure troubleshooting
103
General RF troubleshooting
109
Receiver troubleshooting
115
WCDMA RSSI measurement
117
GSM transmitter troubleshooting
118
GSM transmitter troubleshooting flowchart
120
WCDMA transmitter troubleshooting flowchart
122
Camera basic check troubleshooting
158
Camera failure troubleshooting
159
Flash troubleshooting
160
FMTx2.0 troubleshooting
180
FMTx2.0 antenna visual inspection troubleshooting
181
FMTx2.0 audio path visual inspection troubleshooting
182
FMTx2.0 Si4713 visual inspection troubleshooting
183
Checking validity of signals
184
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This manual is also suitable for:
N78
L4
L3
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