Telephone problem

Further sockets in the house are daisy chained. Disconnect them one at a time starting with the nearest one, and test again. Unless a cable has been damaged (so likely exposed so easy to see) it's most likely a problem inside one of the other outlets.

Those filters have a ring capacitor of around 1uF. A good filter would have a non-polarised component whilst a cheaper version may have back to back electrolytic capacitors similar to those which fail in many power supplies.

Last week I had to replace 4 electrolytic capacitors in my 9 year old Samsung 42" TV. Two in the power supply had visibly bulged so I replaced all in the same area. The fault was a reluctance for the TV to switch on.

Capacitors on PC motherborads fail in the same way ...

Better still, if there are a lot of them, disconnect the last half. If the fault disappears, Check again half way between there and the end, if it doesn't, go back halfway to the beginning. Repeat as required.

Yup. Lots of ways. But you can guarantee it will be the last one you go to which has the fault.

:)

Why would you carry on fault finding after you'd fixed the faulty one?

Lets say you have 12 sockets/units/whatever, say, in a line and the last one is faulty. If you start at the beginning and work your way along the line you will check all 12 before finding the fault.

If, instead, you start at the 6th position and disconnect the output, if the fault disappears, you've eliminated the first

1. Now go to the 9th and do the same. With only two checks you've eliminated 9.

Now go to the 11th and disconect the output. The fault still clears so the fault must be at the 12th one or the feed to it.

That's four checks instead of twelve.

Why would you carry on fault finding after you'd fixed the faulty one?

Remorons like Dave The Benefits scrounger , can't think it's the low education and lack of brain capacity.

That's what he said. It will be the last one you go to.

The same as finding something in the last place you look.

You fell for it - admit it.

Whoosh.

Are you referring to me? Surely not the Pamela we know and love. ;-)