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Cen-Tech Seven Function Digital Multimeter . Model number 90899.

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Why won't the screen show any readout?

I want to use my multimeter to test a battery. The banana plugs are attached and cords are attached to the device, but the screen is not reading anything. My device is turned on and seems to be functioning otherwise.

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2个答案

The reading screen is either broken or malfunctioning. You may need to replace the screen. See screen replacement guide here. If this does not seem to fix the problem, you may have an issue with the motherboard. Click here to see how to replace the motherboard.

Cen-Tech Seven Function Digital Multimeter Mainboard图片

指南

Cen-Tech Seven Function Digital Multimeter Circuit Board Replacement

难度:

简单

5 - 15 minutes

Cen-Tech Seven Function Digital Multimeter Screen图片

指南

Cen-Tech Seven Function Digital Multimeter Screen Replacement

难度:

简单

10 - 15 minutes

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I'm all for fixing stuff and keeping it working, but Harbor Freight literally gives these meters away. They're not worth fixing. i have a stack of spare ones still in the package waiting to be used.

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Anna Kihm 将永远感激不已
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