Intermec 074787-001 User Manuals

Table of Contents

• Before You Begin

  7
  • Safety Summary

    7
  • Sicherheitsübersicht

    7
  • Safety Information

    8
  • Global Services and Support

    8
  • Who Should Read This Manual

    9
• Chapter 1 - Spare Parts List and ExplodedViews

  11
  • PB42 Exploded Views and Parts Lists

    12
• Chapter 2 - Theory of Operation

  15
  • Microprocessor

    16
    • Power Supply Sequencing and Bypass Capacitors

      16
    • Clock Generation Circuitry

      16
    • Reset Configuration Settings

      17
    • Flash Interface

      18
    • SDRAM Interface

      19
      • Register Settings

        19
      • Initialization Procedure

        21
      • Self Refresh Mode

        22
    • Serial Peripheral Interface (SPI)

      23
      • FRAM

        23
      • Input/Output Shift Registers

        24
      • Digital to Analog Converter

        25
      • Analog to Digital Converter

        26
    • Compact Flash Interface

      27
  • Print Controller

    27
    • GPIO Configuration

      27
    • 5V Power Enable

      27
    • Reset

      28
    • Print Controller Startup

      28
    • Configuration Jumpers

      28
    • Parallel Interface

      28
    • Serial Interface

      29
    • Error Detection

      30
    • Thermistors and Paper Sensors

      30
    • Paper Feed and Backfeed

      31
    • Printhead Resistance Test

      31
  • Communication Interfaces

    32
    • USB

      32
      • Low Speed Configuration

        33
      • Full Speed Configuration

        33
      • Cable Detection

        33
    • RS-232

      33
      • Cable Detection

        34
    • Bluetooth Module

      34
    • 802.11g

      34
    • Secondary Serial Test Port

      34
  • User Interface

    35
    • Speaker Driver

      35
    • Buttons

      36
    • LED Control

      36
  • Power Management

    36
    • DC Power Input

      36
    • Charging Circuits

      37
    • Reading Battery Voltages

      38
    • Battery EEPROM

      39
    • Sleep Mode

      39
      • Print Controller Power Down

        39
      • Power Down Unused Processor Modules

        39
      • SDRAM Self Refresh

        39
      • Normal Low Mode

        39
      • Bluetooth Radio Low Power Mode

        40
      • What To Do In Sleep Mode

        40
    • Power Cuts

      40
    • Watchdog Timer

      41
  • Immunity and Emissions

    42
    • ESD

      42
    • Power Surge

      42
    • Conducted Emissions

      43
    • Radiated Emissions

      43
      • Clocks

        43
      • Bus Lines

        43
      • Bluetooth Radio

        43
      • Switching Power Supplies

        44