Nokia RM-994 Manuals

Manuals and User Guides for Nokia RM-994. We have 1 Nokia RM-994 manual available for free PDF download: Service Manual

Nokia RM-994 Service Manual

Nokia RM-994 Service Manual (165 pages)

Brand: Nokia | Category: Cell Phone | Size: 7.42 MB

Table of Contents

Section 1

14
Section 2

32
- Service Tools
  
  34
  - Nokia Product Specific Tools
    34
  - General Tools
    34
  - Option Tools
    35
- Service Concepts (Nokia)
  
  37
Section 3

44
- List of Figures
  
  45
- Placement
  
  46
- How to Power on Handset
  
  50
  - Push Power Key
    50
  - Short TP11 and GND
    50
- Overall Troubleshooting Flow
  
  51
- Interface Troubleshooting
  
  59
- Display Module Troubleshooting
  
  64
- Sensor Troubleshooting
  
  69
- Audio Troubleshooting
  
  74
- Connectivity Module Troubleshooting
  
  79
Section 4

88
- General Instructions for Cellular RF Troubleshooting
  90
- RF Key Components
  91
- Cellular RF Main Troubleshooting
  96
- Antenna
  97
  - Antenna Overview
    97
  - Antenna Troubleshooting
    99
  - GPS/WLAN/BT Antenna Troubleshooting
    101
- RF Tuning and Testing
  97
Section 5

104
Section 6

124
- Introduction
  
  128
  - Phone Description
    128
  - System Module Block Diagram
    130
- Energy Management
  
  131
  - Battery and Charging
    131
- List of Figures Figure 32 Battery Pin Order
  
  131
  - Normal and Extreme Voltages
    133
- List of Tables Table 8 Nominal Voltages
  
  133
  - Power Key and System Power up
    134
  - Modes of Operation
    134
  - Power Distribution
    135
  - Clock Scheme
    136
- Micro SIM Interface
  
  136
- Device Memory
  
  138
- WCN3660 Module
  
  138
- GPS Interface
  
  139
- Microusb
  
  140
  - Microusb Interface and Charging
    140
  - Microusb Connector
    140
- User Interface
  
  141
  - Touch Module
    141
  - Proximity Sensor and Ambient Light Sensor
    141
  - Imaging and Video
    142
    
    Display Module
    142
    
    Cameras
    144
    
    Flash (LED Module)
    144
  - Illumination
    145
  - Keypad Interface
    146
  - Accelerometer
    147
  - Magnetometer
    147
- Audio Concept
  
  148
  - Audio HW Architecture
    148
  - Internal Earpiece
    148
  - Internal Handsfree (IHF) Speaker
    149
  - Internal Microphones
    149
  - External Earpiece and Microphone
    150
  - AHJ Connector
    150
  - Vibra
    151
- Cellular RF Technical Description
  
  152
  - He WTR1605L Transceiver Unit Could Support GSM/EGPRS/WCDMA/HSPA+/LTE
    152
- Frequency Mappings
  
  154
  - GSM850 Frequencies
    154
  - GSM900 Frequencies
    154
  - GSM1800 Frequencies
    154
  - GSM1900 Frequencies
    154
  - WCDMA I (2100) Frequencies
    155
  - WCDMA II (1900) Frequencies
    155
  - WCDMA IV (1700) Frequencies
    155
  - WCDMA V (850) Frequencies
    155
  - WCDMA VIII (900) Frequencies
    155
  - LTE II (1900) Frequencies
    156
  - LTE III (1700) Frequencies
    156
  - LTE IV (1700) Frequencies
    156
  - LTE V (850) Frequencies
    157
  - LTE VII (2500) Frequencies
    157
  - LTE XVII (700) Frequencies
    157
  - LTE XX (800) Frequencies
    157

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