T43 there a fuse or a mosfet (power transistor)

T43 there a fuse or a mosfet (power transistor)? If Yes, any information on how to check them will be appreciated? Have a good day, fengyuan

If it is running on battery, I would first look at the fuse F2 on the motherboard, which is right next to where the power connector comes in. You need specialized equipment, such as a station of rework, to change the fuse, but it is much easier than the MOSFET. The fuse is less than 1/8 "long and is welded. (SMD). T43 uses lead-free solder that requires high temperatures.  I'd also look for Burns in this area.  The machine must be completely dismantled to get to work.

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