Princeton Digital VL1918 Monitor "tv making hissing sound" Questions

...hissing noise coming from one of the transistors or one of the other things ,for which, I do not know the names.The hiss is hard to hear and track and could be normal. Yes I am shooting around but, I ...

...hissing sound as in case of charging/discharging of a cpacaitor. Let me know ow to fix it You may be hearing arching from the lamp assemblies, lamp connectors. More indepth troubleshooting needed. ...

...hissing sound comes out of them intermittently. It seems to clear when you re-boot the PC's but it appears to be getting worse in terms of how often it happens. Any suggestions. It may have dying ...