XỬ LÝ LỖI MÀN HÌNH
Dấu hiệu cho thấy bạn cần thay “màn hình máy tính”
Th3
Bất kì thiết bị máy móc nào dù tốt đến đâu cũng đều có thời hạn tuổi thọ của chúng. Đặc biệt những thiết bị công nghệ điện tử sau một thời gian sử dụng sẽ có dấu hiệu xuống cấp. Đối với màn hình máy tính thì những dấu hiệu xuống cấp sẽ dễ nhận biết hơn.
Bài viết dưới đây sẽ tổng hợp những dấu hiệu cho thấy màn hình của bạn đang gặp vấn đề nhé!
Có thể bạn quan tâm:
Cách sửa lỗi màn hình PC bị giật nhanh chóng
Nguyên nhân và cách sửa lỗi màn hình xanh
Màn hình máy tính bị chậm, thường xuyên bị giật
Biểu hiện của lỗi này là hình ảnh hiện thị bị rung, giật hoặc các khung ảnh nhảy loạn xạ khi đang sử dụng.
Lỗi này thường do tần số quét màn hình máy tính không thích hợp với các chương trình hoặc do card màn hình hay do những dây cáp nối với màn hình bị lỏng.
Nếu gặp lỗi này thì bạn có thể tự khắc phục bằng cách điều chỉnh lại tần số sao cho phù hợp cũng như gắn lại những mối dây cáp cho đúng cách. Còn nếu lỗi do card màn hình thì bạn cần phải thay thế nhé.
Màn hình máy tính bị nhòe hình và thiếu sáng
Trong quá trình sử dụng máy tính nếu bạn thấy đột nhiên độ sáng của màn hình lại bị suy giảm rõ rệt hay hình ảnh trở nên mờ và nhòe đi thì có thể do lỗi đèn màn hình hoạt động quá lâu cần được thay thế.
Nếu bạn tắt máy và mở lại mà vẫn thấy xảy ra lỗi này thì có thể do cáp tín hiệu hoặc mainboard bị đứt nguồn truyền dữ liệu, làm cho điện không chạy được đến đèn cao áp sẽ khiến màn hình bị tối và mờ đi.
Đối với lỗi này bạn không thể nào tự mình sửa được mà cần phải nhờ đến chuyên viên kĩ thuật kiểm tra lại để biêt chính xác vấn đề và tìm cách khắc phục.
Màn hình máy tính bị tối đen
Bạn nên kiểm tra lại bộ phận như nguồn, tín hiệu truyền dữ liệu nếu không có biểu hiện thất thường mà màn hình vẫn tối đen và không có tín hiệu lên ảnh, thì nguyên nhân hầu hết là do tín hiệu truyền đến màn hình LCD bị mất hoặc nhiễu. Lỗi này cũng tương tự như lỗi thiếu sáng bên trên, nghĩa là nguyên nhân có thể nằm ở cáp truyền tín hiệu hoặc mainboard, và bạn cũng cần phải nhờ đến chuyên viên để kiểm tra xem sự cố nằm ở đâu và nhờ họ sửa chữa.
Màn hình máy tính có sọc ngang, sọc dọc
Khi trên màn hình xuất hiệu nhiều đường kẻ màu hoặc các vệt trắng cắt ngang, dọc màn hình, thì chủ yếu là do tấm phủ màn hình đang gặp vấn đề, một số ít trường hợp khác là do cáp nối bị hở ra khiến tín hiệu bị nhiễu.
Nguyên nhân dẫn đến sự cố này có thể là do mạch tín hiệu ở bên trong màn hình bị đứt hoặc cáp sau màn hình bị gãy. Những sự cố như thế này thường không thể tự kiểm tra được, bạn nên mang màn hình đến những trung tâm bảo hành, sửa chữa điện tử uy tín và kiểm tra nó, nếu do cáp gãy hoặc đứt mạch trong thì có thể gắn lại hoặc thay thế, nhưng nếu lỗi quá nghiêm trọng thì có thể bạn sẽ cần thay luôn cả tấm phủ (panel).
Màn hình không lên hình
Có rất nhiều trường hợp dẫn đến hiện tượng này đôi khi màn hình không hoạt động mà vẫn có tín hiệu âm thanh và tín hiệu mạng hoặc mất toàn bộ các tín hiệu, thì vân đề thường xảy ra ở dây nối màn hình LCD.
Bạn có thể thử tháo ra vào gắn lại như trường hợp đầu tiên. Còn nếu vẫn không có tín hiệu gì thì có thể các linh kiện bên trong đã bị hỏng. Nguyên nhân có thể nằm ở nhiều chỗ như RAM bị xuống cấp, chip gặp sự cố về phần cứng v.v… Bạn có thể mang nó đi vệ sinh lại, hoặc đê chắc chắn hơn thì đem đến các các hàng kĩ thuật để tìm hiểu kĩ hơn.
Ngoài ra còn một số lỗi khác như có điểm chết hoặc đốm mờ trên màn hình, hình ảnh bị mất màu, đứt nét… Để hạn chế gặp những lỗi trên, khi mua hàng bạn nên kiểm tra cẩn thận, và thay thế sản phẩm ngay khi phát hiện ra lỗi để tránh các vấn đề nặng hơn về sau
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