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220-801 · Question #295

Replacing which of the following laptop components may also replace the power inverter board?

The correct answer is B. LCD screen. The power inverter board provides the high-voltage AC current needed to drive the CCFL (Cold Cathode Fluorescent Lamp) backlight of older LCD panels. On many laptops, the inverter board is physically attached to or tightly integrated with the LCD screen assembly, so replacing…

Mobile devices

Question

Replacing which of the following laptop components may also replace the power inverter board?

Options

  • APCMCIA slot
  • BLCD screen
  • CHard drive
  • DWLAN card

How the community answered

(45 responses)
  • A
    2% (1)
  • B
    91% (41)
  • C
    2% (1)
  • D
    4% (2)

Explanation

The power inverter board provides the high-voltage AC current needed to drive the CCFL (Cold Cathode Fluorescent Lamp) backlight of older LCD panels. On many laptops, the inverter board is physically attached to or tightly integrated with the LCD screen assembly, so replacing the LCD often includes replacing the inverter as well. PCMCIA slots (A), hard drives (C), and WLAN cards (D) have no relationship to the inverter board.

Topics

#laptop LCD#power inverter#laptop components#display

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