Motorola i425t Manuals

Manuals and User Guides for Motorola i425t. We have 1 Motorola i425t manual available for free PDF download: Detailed Service Manual

Motorola i425t Detailed Service Manual

Motorola i425t Detailed Service Manual (144 pages)

Brand: Motorola | Category: Cordless Telephone | Size: 7 MB

Table of Contents

Model Information
9
Model Specifications
10
Preface
11
Table of Contents
13
Chapter 1

17
- Iden Digital Modulation Technology
  17
- Iden Voice Compression Technology
  19
- Iden Power Management
  20
- Digital Section
  21
- Patriot Processor
  22
- MCU Digital Phase Locked Loop (DPLL)
  23
- Host System Clock Synthesizer
  23
- PATRIOT Digital Signal Processor
  24
- DSP Phase Locked Loop (PLL)
  24
- Serial Peripheral Interface (SPI)
  24
- Host Memories
  24
- Iden Transceiver Architecture
  25
- Iden TX Path
  26
- Roadrunner
  27
- Sledgehammer (Tx)
  27
- Balun
  28
- RF Power Amplifier Module
  28
- Cartesian Feedback
  29
- Level Set and Phase Training
  29
- Iden Receiver Path
  31
- Rx Front End (RX Path)
  31
- Sledgehammer IC (RX Path)
  31
- Roadrunner IC (RX Path)
  32
- Frequency Generator (RF) Section
  32
- Mototalk [Available ONLY on I290]
  33
Chapter 2

37
Chapter 3

63
- Troubleshooting
  63
- Digital Analysis Test
  63
- LO Output Test
  67
- RX Main VCO Test
  68
- Power-Up Test (V6, FILT_B+)
  70
- Keypad Failure Test
  71
- SLEDGEHAMMER Test
  72
- RX Analysis Test
  74
- TX Power Test
  79
- RF PA Module Test
  80
- SLEDGEHAMMER TX Test
  83
- Earpiece Speaker Test
  86
- High Audio Speaker Test
  88
- Audio Loopback Level Test
  91
- Reference Oscillator Test
  94
- DC Distribution (V2) Test
  96
- DC Distribution (V3) Test
  97
- DC Distribution (V4) Test
  98
- DC Distribution (4.5V Pre-Regulator) Test
  99
- DC Distribution (V_VIB) Test
  100
- DC Distribution (VUSB) Test
  101
- DC Distribution (VSIM) Test
  102
- DC Distribution (VHOLD) Test
  103
- DC Distribution (VC Reg) Test
  104
- Model Assembly (MA) Test Mode Test
  105
- GPS Receiver Test
  107
- Mototalk (I290 ONLY)
  110
Chapter 4

111
- Component Layout Main Board - Front
  112
- Component Layout Main Board - Back
  113
- Component Layout Keypad Board - Front
  114
- Component Layout Keypad Board - Back
  115
- MAIN PCB - Block Hierarchy
  116
- BATTERY_BLOCK - Battery Connections
  117
- ACC_CONN_BLOCK - EMU Connector
  118
- ROADRUNNER_BLOCK - Audio Section
  119
- ROADRUNNER_BLOCK - Power Section
  120
- ROADRUNNER_BLOCK - Interface and A/D
  121
- DIGITAL_BLOCK - JTAG Test Connector
  122
- DIGITAL_BLOCK - Connectors, SIM, Misc
  123
- DIGITAL_BLOCK - Patriot and Memory
  124
- BLUETOOTH_BLOCK - Bluetooth Circuit
  125
- TRANSCEIVER - Xmit, Xcvr, VCO, TCXO
  126
- KEYPAD BOARD - Keypad, BL, Logo, Spkr, MIC, Vib, Flex
  127
- Component Locations
  128
- Customer Service
  139
- Replacement Parts
  139
- Domestic Orders
  139
- International Orders
  139
- Replacement Kits
  140
- Recommended Test Equipment and Tools
  141
- Recommended Programming Equipment
  142

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