Cen-Tech Seven Function Digital Multimeter Circuit Board Replacement

Введение

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.

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Шаг 1 Position Device

Cen-Tech Seven Function Digital Multimeter Circuit Board Replacement, Position Device: шаг 1, изображение 1 из 1

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

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Шаг 2 Remove Back Panel Screws

Cen-Tech Seven Function Digital Multimeter Circuit Board Replacement, Remove Back Panel Screws: шаг 2, изображение 1 из 2

Cen-Tech Seven Function Digital Multimeter Circuit Board Replacement, Remove Back Panel Screws: шаг 2, изображение 2 из 2

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

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Шаг 3 Remove Back Panel

Cen-Tech Seven Function Digital Multimeter Circuit Board Replacement, Remove Back Panel: шаг 3, изображение 1 из 1

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

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Шаг 4 Unscrew Motherboard

Cen-Tech Seven Function Digital Multimeter Circuit Board Replacement, Unscrew Motherboard: шаг 4, изображение 1 из 2

Cen-Tech Seven Function Digital Multimeter Circuit Board Replacement, Unscrew Motherboard: шаг 4, изображение 2 из 2

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

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Шаг 5 Remove Motherboard

Cen-Tech Seven Function Digital Multimeter Circuit Board Replacement, Remove Motherboard: шаг 5, изображение 1 из 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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