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I repaired an awful lot of TV's as a student - for fun and beer, not money - and somehow managed to survive. The Philips K9 chassis was a favourite, an example

I repaired an awful lot of TV's as a student - for fun and beer, not money - and somehow managed to survive. The Philips K9 chassis was a favourite, an example of how to design (analog) hardware for ease of maintenance and debugging. Just pop off the back, open the circuit board doors and the whole of its innards were available for debugging. No, it is not that dangerous provided you know which bits to be careful with. It can look dangerous though, especially in those cases where the HT line starts producing corona discharges ranging from bluish clouds to fat streaming sparks (the more the merrier).

throwaway7767 11y ago
Yes, as long as people are aware of the dangers, it's no problem. I took a bunch of electronics repair courses, which were largely focused on radios and CRT TVs. Only one person managed to hurt himself, he fell asleep with the open TV in front of him, and his forehead hit the high-voltage lines (~20kV IIRC) on the back of the CRT. I've never seen anyone wake up and jump from his chair so fast. Needless to say, he never fell asleep in that class again.