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Viewsonic E40


alimostafa
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Dear sir,
Sweet Salutation.
please i have a large problem in our screen. the screen is no light and the lamp of power light and dark continousley and we try to change power tansistor there is not change so., we ask you to send me service manual for screen or help me to repair our screen.
Best regards
Eng : Ali Mostafa
Biomedical Engineer

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