Answer: A. Electric drill, B. Allen wrench, C. Electric soldering iron, D. Desoldering machine, E. Hot air gun, F. Electrical insulation tape, G. Board washer, H. LED full-color display, I. Control card, J. Power supply, K. Network cable.
Answer analysis:
A. Electric drill: used for drilling holes.
B. Allen wrench: used to tighten nuts and bolts.
C. Electric soldering iron: circuit board welding and repair.
D. Desoldering machine: removes oxidation on the surface of solder or the object being sucked.
E. Hot air gun: soldering circuit boards and top shell components.
F. Electrical insulation tape: used to insulate wires.
G. Board washer: used to clean the PCB board surface.
H.LED full-color display: the core component of the installation.
I. Control card: used to control the display content.
J. Power supply: input power signal.
K. Network cable: used to transmit control card data signal.