With the headset connected to the TV behind the Fan Chou school meal wine rudder ten degrees fine "AudioOut" interface, also can not hear any sound. The normal should be inserted into the headset, the TV sound did not, go to the ear with a sound. Please enlighten heroes. Questions added: more
The motor starting current is 5-7 times the rated current, but the motor starts only a few seconds, and with the motor after the start, the current decreases, so with the cable, you only need to consider the rated current can be.
Single-core (copper) cross-sectional area, the calculation of the cross-sectional area of the wire, a single copper wire diameter in addition to 2 to get the radius, radius multiplied by the radius multiplied by 3.14 is the single line of the square, rubber is not counted. 4 square of the single core diameter is about 2.26 mm, because the diameter of the core is easy to measure, and the cross-sectional area will be calculated through the calculation. Usually our approach is to seek the cross-sectional area of the wire, metaphor, read back the 16 square seven-wire, national standard single diameter should be 1.7 mm, the actual diameter is 1.6 mm, with the above formula Calculation, 0.8X0.8X3.14X7 = 14.. it shows that this line did not meet the national standard, only 14.1 square. Now a lot of wires on the market are less than GB standards, we buy the wire every time we will calculate the calculation, and then decided to buy.
There are many possibilities. Maybe the TV is not bad, is to switch to an empty interface, and cut back, just fine.
