: Protects the LCDVDD discharge or backlight power lines.
If the fuse is not the only issue, you may need to go further. A repair case describes digging deeper: "I managed to find the problem with q4901 transistor. The 32. pin of U2701A (NPCE795GA0DX) seemed to lead there and gave absolutely nothing. When I tried directly from pin 32 (without the named transistor), then it gave me ~3.3V. So I replaced the transistor from Q4901...". This demonstrates that after replacing F4901, one should also check nearby transistors (like Q4901) and the LCD controller chip for shorts or open circuits. f4901 1.1a 24v schematic
: Use a solid, uninterrupted ground plane beneath the F4901 IC and the output capacitors to minimize electrical noise and improve thermal dissipation. : Protects the LCDVDD discharge or backlight power lines
): 1.1A (The maximum current the device can carry without tripping at 23°C). Trip Current ( Itripcap I sub t r i p end-sub The 32