In diagram above you can see there are different color lines and these are identifying the path of lcd prints.lcd pins are counted in picture from left to right as 1,2…12 and these prints can be check with a multi meter if any of them is broken or any component is broken you can make jumper to the points that are shown in picture and a big round point shows here you can make jumper and these are test points for lcd display blank display problems.
As in lcd points numbers are shown same numbers are defined with parts so that you can easily find where you have to apply jumpers. . if any part is not at the same place and have broken due to water damage or something else then you can see some points can also be scratched. So scratch them slightly and make jumper at that point.
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