Casio CTK-750 Manuales de usuario

Tabla de contenidos

• CTK-750

  1
• CONTENTS

  2
• SPECIFICATIONS

  3
• REPLACING THE DSP (HG51A115A01FD)

  4
• BLOCK DIAGRAM

  5
• CIRCUIT DESCRIPTION

  6
  • Key Matrix

    6
  • Nomenclature of Keys

    7
  • Button Matrix

    7
  • Reset Circuit

    7
  • CPU (HD6433298A18P)

    8
  • Gate Array (UPD65005C-578)

    9
  • Digital Signal Processor (HG51A115A01FD)

    10
  • Block diagram of DSP and DAC circuit

    11
  • DAC (UPD6376CX)

    12
  • Key Touch LSI (HG52E35P)

    12
  • Filter Block

    13
  • Power Amplifier (LA4620)

    14
  • Power Supply Circuit

    14
• WIRING DIAGRAM

  15
• MAJOR WAVEFORMS

  16
• PCB VIEW and MAJOR CHECK POINTS

  18
• SCHEMATIC DIAGRAMS

  19
  • Main PCB M5712-MA1M

    19
  • Console PCB M5712-CN1M

    20
  • Keyboard PCBs M615T-KY1M, KY2M

    21
• EXPLODED VIEW

  22
• IC LEAD IDENTIFICATION AND INTERNAL DIAGRAM

  23
• PARTS LIST

  25