"Sofie" bravely wrote to "All" (18 Sep 03 17:15:48)
--- on the heady topic of "Re: TV RF connector capacitor function?"
I think this part combines a small value capacitor in parallel with a
large value resistance inside the same package. The capacitive part is
to create the RF path and the resistive part is to safely discharge the
antenna static. Some circuits vary in how complex the part is but the
voltage rating seems to be very important.
So> From: "Sofie" <
[email protected]>
So> "Charles Schuler said:
Probably a DC blocking capacitor. If so, it's there to prevent DC from
damaging the tuner. I once had a very expensive and bad experience when a
DC blocking capacitor was absent; they can be very important.
So> ......NO, not a DC blocking capacitor, although that is what a
So> capacitor can do, BUT it is rather a SAFETY component that isolates the
So> television's "hot chassis" circuitry from external metal parts and
So> external connections such as the antenna connector.
So> FIRST.... UNPLUG the television IMMEDIATELY and either replace the
So> entire "isolation block" (the small metal box that you described) that
So> would include a new antenna connector and a plug at the other end that
So> plugs into the tuner.... or replace the capacitor with the exact
So> original equipment value and rating. Again, this is a electrical
So> shock hazard SAFETY item, not just a tuner protection component. An
So> omitted or wrong type of capacitor can present a lethal and dangerous
So> electrical shock hazard and a fire hazard..... repair this correctly
So> with the proper replacement isolation block..
So> --
So> Best Regards,
So> Daniel Sofie
So> Electronics Supply & Repair
.... Letterman of Borg - "Ok, Top 10 reasons why resistance is futile:"