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…
Question
Options
- APCMCIA slot
- BLCD screen
- CHard drive
- DWLAN card
How the community answered
(45 responses)- A2% (1)
- B91% (41)
- C2% (1)
- D4% (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.
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