I use the TV as a computer screen, connect the HD line, how no sound
Look at the box are connected to what equipment to know the box type.
YJV and VV are two different types of cables, YJ is cross-linked polyethylene, V is a polyethylene sheath, VV22 is the first 2 is a double strip, the second 2 is a polyethylene sheath, 4 * 25 + 16 refers to the diameter of the wire, refers to four 25 square and a 16 square double steel belt polyethylene insulated PE jacket 5 core cable.
FD is floor wiring box (for integrated wiring) VP is cable TV branch box
