Nokia Lumia 1320 - Section 3

RM-994/ RM-995/ RM-996
BB Troubleshooting Guide
NOKIA INTERNAL USE ONLY Page 43
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Table of Contents
Placement ................................................................................................................................................. 45
Placement – Main Board (Top side) ......................................................................................................45
Placement - Main Board (Bottom side) .................................................................................................46
Placement - D-Cover ............................................................................................................................47
Placement - A_Cover( Include TP ,LCM) ..............................................................................................48
How to power on Handset ........................................................................................................................ 49
Push Power Key ...................................................................................................................................49
Short TP11 and GND ............................................................................................................................49
Overall Troubleshooting flow .................................................................................................................. 50
General power checking troubleshooting ..............................................................................................53
Dead or jammed device troubleshooting...............................................................................................55
Clocking troubleshooting ......................................................................................................................56
USB Charging troubleshooting .............................................................................................................57
Interface Troubleshooting ........................................................................................................................ 58
USB data interface troubleshooting ......................................................................................................58
SIM card troubleshooting ......................................................................................................................59
Micro SD interface troubleshooting .......................................................................................................60
DRAM troubleshooting .........................................................................................................................61
eMMC troubleshooting .........................................................................................................................62
Display Module Troubleshooting ............................................................................................................ 63
Display Fault troubleshooting ...............................................................................................................65
Touch Panel troubleshooting ................................................................................................................66
Keyboard troubleshooting .....................................................................................................................67
Sensor Troubleshooting .......................................................................................................................... 68
Accelerometer troubleshooting .............................................................................................................68
Accelerometer troubleshooting .............................................................................................................69
Proximity sensor and ambient light sensor (ALS) .................................................................................70
ALS troubleshooting .............................................................................................................................71
Proximity troubleshooting .....................................................................................................................72
Audio Troubleshooting ............................................................................................................................ 73
Audio troubleshooting test instructions .................................................................................................73
External earpiece troubleshooting ........................................................................................................74
Internal Earpiece troubleshooting .........................................................................................................75
Internal Handsfree Speaker troubleshooting .........................................................................................76
Vibra Troubleshooting ...........................................................................................................................77
Connectivity Module Troubleshooting .................................................................................................... 78
Introduction to connectivity module troubleshooting .............................................................................78
BT Antenna troubleshooting .................................................................................................................80
WLAN Antenna troubleshooting ............................................................................................................81