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No backlight but screen works when flashlight is shined upon it. How do I Check the voltage with a multimeter? Also should I replace the fuse or just replace the entire logic board? Logic board is an 820-2877-b
montel chiles you will have to post some good images of your logicboard with the question. Use this guide for that. It will help us to point out some components on where you can test for voltages to you. The fuse is the best part at this time. I marked it on the attached image with its reference deisgnator F9800. It is a 2Amp 32 Volt fuse in a 0402 package.
Check it for continuity as well as voltage. Once you know it has continuity you use a multimeter with the positive probe on the fuse and a negative on ground. you will have to of course power up the board. When you post images make sure that you have a really good one of the display adapter.
