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Sanyo CX 110 Teardown

Written By: samhnri (and 2 other contributors)
Published: April 17, 2010
  • Comments: 1
  • Favorites: 1
  • Views: 5.5k

Sanyo CX 110 Teardown

Written By: samhnri (and 2 other contributors)
Published: April 17, 2010
  • Comments: 1
  • Favorites: 1
  • Views: 5.5k

Teardown

Introduction

Teardown of an early 1980s Sanyo CX-110 calculator.

What you need

This teardown is not a repair guide. To repair your Sanyo CX 110, use our service manual.

  1. Sanyo CX 110 Teardown, Sanyo CX 110 Teardown: step 1, image 1 of 2 Sanyo CX 110 Teardown, Sanyo CX 110 Teardown: step 1, image 2 of 2
    Tool used on this step:
    Phillips #0 Screwdriver
    $5.49
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  2. Sanyo CX 110 Teardown: step 2, image 1 of 2 Sanyo CX 110 Teardown: step 2, image 2 of 2

    • Now that we removed the back of the calculator, here are the battery and the back of the circuit board.

    • Sanyo Tight-Seal Power-Up Sum-3 1.5V AA battery.

    • Positive contact for the battery.

    • Negative contact for the battery.

    Edit

  4. Sanyo CX 110 Teardown: step 3, image 1 of 1

    • After removing the seven Phillips screws and flipping the circuit board, you will see the "brain" of the calculator—a Sanyo LI3120M chip.

    • The keypad has been removed from the calculator.

    Edit

  5. Sanyo CX 110 Teardown: step 4, image 1 of 1

    • Now that we have completed the teardown, we can lay out all the parts of the calculator.

    • The AA battery.

    • Parts of the LCD display.

    • The circuit board.

    • The keypad containing all the buttons of the calculator.

    • The housing for the calculator.

    Edit

Author

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samhnri

Member since: 04/07/10

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