CASIO BN-20 Manuals

Table of Contents

• • 2

    Table of Contents

• 3

  1 Specifications

• 5

  2 General Guide

  • 5

    Appearances and Display Indicators
  • 7

    Modes and Cursor Keys Etc
  • 13

    Backlight Operation (BN-20 Only)
  • 14

    Power Supply

• 16

  3 RESET OPERATION and BATTERY REPLACEMENT

  • 16

    Reset Operation
  • 18

    Battery Replacement

• 24

  4 Data Communication

  • 24

    General
  • 25

    Connecting the CASIO BN Unit to PC
  • 27

    PC Sync for Windows (Brief Explanation)

• 29

  5 Operation Check

  • 29

    To Enter the Operation Check Mode
  • 30

    Operation Check

• 38

  6 Error Messages

• 40

  7 Troubleshooting

• 41

  8 Lsi Pin Function

  • 41

    Cpu
  • 42

    Gate Array

• 44

  9 Circuit Explanation

  • 44

    Block Diagram
  • 45

    Power Supply
  • 46

    Function

• 48

  10 Schematic Diagrams

• 58

  11 Disassembly

  • 58

    Disassembly for Keyboard Side
  • 59

    Disassembly for Display Side

• 60

  12 Parts List

• 63

  13 Exploded View