✔ 最佳答案
LCD monitor roughly composes of :
- LCD display screen
- LCD backlight (light tube)
- LCD circuit board (control and convert signal)
- LCD power supply unit (transform AC to DC current)
- LCD case etc
As you described your LCD monitor, it should be the LCD backlight (light tube) has failed.
To replace faulty LCD light tube(s), it will cost around $300-$400 depending on your LCD model and size.
There are lots of repair shop in Sham Shui Po [new] Golden Arcade.
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