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Question:

Philips 273E3LSW / 93 chain connected cable set-top box how to debug?

Motherboard atx12v interface I power line is not long how to do?

Answer:

The zero line and the line of fire are the same. The user side of the zero line status and FireWire, have the same insulation requirements. In the power distribution side, after the power down the transformer to rely on the neutral point of the transformer zero line, and in the vicinity of the ground. Transfer and 3 FireWire go together. To the user where the ground is not the power distribution ground, and can not rely on the earth as a zero line to the current, the earth's resistance is very large, in the vicinity of the power distribution users can not make their normal use of electrical appliances. So the user where the ground is directly connected to the risk of electrical appliances with the shell, the human body easily accessible to the part. The user's ground must not be connected to the zero line!
Cable classification, the cable model consists of eight parts: First, the use of code - not marked as the power cable, K for the control cable, P for the signal cable; Second, the insulation code-Z oil impregnated paper, X rubber, Thin, YJ cross-linked polyethylene three, the conductor material code - not marked as copper, L for the aluminum; four, the inner layer code-Q lead, L aluminum package, H rubber, V PVC jacket five, (Y), SYKV (Y), SYWV (Y), SYKV (Y), SYKV (Y), SYKV (Y), SYKV (Y), SYKV (Y), SYKV (Y), SYKV Cable, broadband cable dedicated cable structure: (coaxial cable) single oxygen-free round copper + physical foam polyethylene (insulation) + (tin wire + aluminum) + PVC (polyethylene)

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