Viewsonic VA2213W, there is an illumination problem, in the middle of the screen, images attached.
I visualy checked the power board and main board, there is no bulged capacitors, no burnings, everything looks normal, and quite good.
I dont have ESR meter, only digital multimeter, but I didnt measured any voltages.
I found service manual, also in attachment.
Where to start looking for the problem ?
I visualy checked the power board and main board, there is no bulged capacitors, no burnings, everything looks normal, and quite good.
I dont have ESR meter, only digital multimeter, but I didnt measured any voltages.
I found service manual, also in attachment.
Where to start looking for the problem ?
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