CRT display hissing is going on? Is it dangerous to use it?
High pressure package ignition phenomenon, looking for repair TV, for you to clean up just fineDon't use it before you fix it. It might burn
CRT gives a squeaky sound, usually in two places:1, high pressure capIf there is more dust near the high pressure cap of the picture tube, or the insulating layer near the high pressure cap is damaged, then the phenomenon of "high pressure ignition" will appear;2 transducerIn the CRT power converter circuit, a rectangular body (4 cm square cross section is covered by a layer of copper), if the transducer for winding looseness and other reasons, they will have a "resonance" phenomenon in high frequency current under the action of "creak" ringing "";The above two phenomena generally will not affect the use effect, and the harm to CRT is not very big (especially second), the distinction and the solution is:1, "high pressure ignition" sound is a glide type of low-key leak sound, there is no obvious "knock" characteristics;In the case of power failure, first of all, completely remove the dust near the high-pressure cap, and then apply a layer of "arc extinguishing Ling", after drying, and then use;2, the transducer "vibration bell" has obvious striking characteristics, the sound is relatively crisp;Daub AB or glass glue in the coil, the transducer on the skeleton (but sufficient cooling area), to be re used after drying.
