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Nokia 6720 Service Manual page 158
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User manual
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,
Service manual
(19 pages)
,
Service schematics
(11 pages)
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
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RM-424; RM-564
RF Troubleshooting
Figure 45 Test points for voltage checking
Page 4 –26
COMPANY CONFIDENTIAL
Issue 1
Copyright © 2009 Nokia. All rights reserved.
Table of
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157
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Chapters
Section 1
15
Section 2
27
Section 3
57
Section 4
135
Section 5
167
Table 7 Power
181
Table of Contents
Troubleshooting
Power and charging troubleshooting
61
Power key troubleshooting
63
General voltage checking troubleshooting
64
Battery current measuring fault troubleshooting
67
Charging troubleshooting
68
Clocking troubleshooting
69
Interface troubleshooting
70
SIM card troubleshooting
73
MicroSD card troubleshooting
75
USB data interface troubleshooting
76
TV-out troubleshooting
77
User interface troubleshooting
79
Keyboard, side keys and indicator LED troubleshooting
80
Display fault troubleshooting
82
Introduction to display and keyboard backlight troubleshooting
84
Display backlight troubleshooting
85
Ambient Light Sensor troubleshooting and re-calibration
86
ALS troubleshooting
88
Accelerometer and magnetometer troubleshooting
90
GPS troubleshooting
92
GPS failure troubleshooting
101
GPS basic checks troubleshooting
103
Audio troubleshooting
104
Internal earpiece troubleshooting
108
Internal microphone troubleshooting
109
Internal handsfree (IHF) troubleshooting
112
External earpiece troubleshooting
113
External microphone troubleshooting
114
Acoustics troubleshooting
115
Earpiece troubleshooting
117
IHF troubleshooting
118
EANC error microphone troubleshooting
119
EANC reference microphone troubleshooting
120
Uplink microphone troubleshooting
121
Vibra troubleshooting
122
Bluetooth and FM radio module troubleshooting
125
General RF troubleshooting
137
Self test troubleshooting
140
Receiver troubleshooting
142
GSM receiver troubleshooting flowchart
143
WCDMA receiver troubleshooting flowchart
146
Transmitter troubleshooting
147
GSM transmitter troubleshooting flowchart
151
WCDMA transmitter troubleshooting
152
WCDMA transmitter troubleshooting flowchart
155
Troubleshooting with RF-shield removed
156
VCTCXO troubleshooting
159
Antenna
162
Main (back) camera troubleshooting
169
Main camera troubleshooting
170
Main camera baseband troubleshooting
171
Main camera no recognizable viewfinder image troubleshooting
172
Main camera bad image quality troubleshooting
173
Camera flash and privacy indicator troubleshooting
174
Secondary (front) camera troubleshooting
175
Secondary camera bad image quality troubleshooting
176
RM-564 product data
207
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Rm-564
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