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Cables and patch cords

How to repair an audio cable with jack connectors...More.
How to protect HDMI cables from improper bending and failure...More. 
Crimping new Ethernet patch cord connectors...More.

Audio, Video.

How to hang an LCD to the wall...More.
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RCA connectors, meaning of the colors...More.
Building an AV equipment cabinet...More.
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How to aim a SAT dish, using a satellite finder, choosing the location, fixing it, etc....More. 
Laptop and Internet
Your laptop is getting warmer than usual? You can hear its fan? Time to dismantle it and clean it....More
Slow connection? Try to restart your modem / router...More.

See also...

How to repair Home Appliances...
Home electrics and batteries...
Lighting and LED strips...