Cen-Tech Seven Function Digital Multimeter Circuit Board Replacement

はじめに

In order to remove and replace the circuit board, the back panel must first be removed by taking out the two screws on the back of the device. To reduce the chances of damaging the meter, remove the battery as soon as the back cover is removed. Next, the four screws that secure the circuit board must be removed. This will free the circuit board to be removed and replaced.

必要な工具と部品

手順1 Position Device

Cen-Tech Seven Function Digital Multimeter Circuit Board Replacement, Position Device: 手順 1、 1の画像 1

Place the meter face down, and the back panel and screws can be seen.

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手順2 Remove Back Panel Screws

Cen-Tech Seven Function Digital Multimeter Circuit Board Replacement, Remove Back Panel Screws: 手順 2、 2の画像 1

Cen-Tech Seven Function Digital Multimeter Circuit Board Replacement, Remove Back Panel Screws: 手順 2、 2の画像 2

Unscrew the two 9mm screws on the back panel using a #0 Phillips screwdriver.

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手順3 Remove Back Panel

Cen-Tech Seven Function Digital Multimeter Circuit Board Replacement, Remove Back Panel: 手順 3、 1の画像 1

Remove the back panel of the device by lifting upward.
Remove the battery from the meter before continuing.

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手順4 Unscrew Motherboard

Cen-Tech Seven Function Digital Multimeter Circuit Board Replacement, Unscrew Motherboard: 手順 4、 2の画像 1

Cen-Tech Seven Function Digital Multimeter Circuit Board Replacement, Unscrew Motherboard: 手順 4、 2の画像 2

Remove the four 7mm Phillips screws holding the circuit board in place.

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手順5 Remove Motherboard

Cen-Tech Seven Function Digital Multimeter Circuit Board Replacement, Remove Motherboard: 手順 5、 1の画像 1

Gently lift the circuit board away from the device casing.
Remove the battery after removing the back cover to reduce the chances of short-circuiting the circuit board.

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