I have a cable company installed SVI Subscriber amplifier - model SV-A15 4PRS. It has four 7.5 dB outputs. Two of the outputs are used - 1 going to my HD cable box and one going to an internet modem. The remaining two outputs have caps of some sort - they appear to be screwed onto the threads and you can turn them but you can't remove them by screwing.
I have a non-HD TV in another room and I want to hook it up from the amp directly to the TV and be able to see the first 71 channels.
Two questions: #1 Will my non-HD TV work if I have an HD feed from the cable company? #2 How do I remove the caps off the other outputs on the amplifier?
#2) Pull harder!
If you have an HD box, that means you have a digital incoming connection which will not work with old analog tuners. All you would get on the second TV is static.
Those caps are called terminators. They help prevent signal loss from the amplifier. It's important they remain attached unless that particular tap is in use.