Cable problems, any solution?

I'm having problems with my cable connection.
Problem I'm having:

Brilliant signal on 1 TV (CRT, 21") in the living room,
Good (but not brilliant) signal on 1 TV in one room (LCD, 15"),
No signal on my office TV (LCD, 32") nor no cable radio signal on the home theatre system connected to it,
Good (but not brilliant, occasional connection problems) internet connection with a cable modem in one room (the one with the 15" LCD).

What could be the problem.
The layout is this:

Signal comes in-> Split in two->

1) Living Room TV

2) Split in two AGAIN->

1. My Office->TV and Radio Splitter-> TV and Home Theatre System

2. The other room->TV-Radio-Splitter->15" LCD TV

This worked UNTIL I connected the other room with the 15" TV into my cable network at home.

Thanks in advance!

Tags: 1, cable, no, on, others, problems, signal, tv

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Replies to This Discussion

Permalink Reply by Kildar on August 26, 2009 at 5:17am: Too many splitters. Cable signal comes into most homes at +7. Every time that you split it you lose 3.2. You are at a negative and you do not want that. Remove some splitters or have your cable company put in one central splitter. You may even need an amp installed to boost the signal.; ▶ Reply to This

Permalink Reply by Johannes S. on August 26, 2009 at 5:45am: But this still wouldn't cause it to have absolutely NO TV or radio reception AT ALL in one room and clear picture in the other two, would it?

Besides, the last splitter isn't exactly a splitter as it is basically a TV/Radio wall socket.; ▶ Reply to This

Permalink Reply by Ben Page on August 26, 2009 at 5:48am: Yup, too many splitters, it would be much better if you only had one main/central splitter. Also, the strength of the cable signal is limited, you seem to have overloaded your network with too many outputs. I'm just guessing this, but that cable was probably meant for one TV and one internet connection, so adding more inputs (or outputs - depends from which side you are looking) requires a signal boost, don't know how you are connected from the operator through the infrastructure, but maybe you can talk to your operator to boost your signal - but that may require additional funding, like paying for 2 TVs instead of one etc.; ▶ Reply to This

Permalink Reply by Johannes S. on August 26, 2009 at 5:50am: Actually, it used to (a couple of years ago) work with 3 TVs just fine, each of them showing a crystal clear picture and also having a cable internet connection.
And it had the same amount of splitters, maybe even more.; ▶ Reply to This

Permalink Reply by Ben Page on August 26, 2009 at 6:33am: But that is not what I was talking about. I was talking about your subscription, are you subscribed to 3 TVs? 3TVs need stronger signal than 1TV, maybe you had stronger signal, but now your operator is correcting it according to the specifications from your subscription. It may also be that your neighbors got cable, so now the main signal coming to your house is being distributed to more houses. It may be that your cables are "worn out", how long are the cables in your house? It would be best to talk to your cable operator, only he knows what is really going on, it may be that you operator is running maintenance or that his "repetitors" are malfunctioning and so on, this greatly depends from your local cable infrastructure...
I also have a home cable network with 3TVs, one main TV is working great, with crystal clear signal, but the other two are having some interference. Now, the first one has 7m cable, while the other two have 15m cables all coming from the same central splitter, and on top of that I have a subscription only to one TV, so I know where my issues lie...; ▶ Reply to This

Permalink Reply by Johannes S. on August 26, 2009 at 6:37am: Thank you for your replies: I have now figured out what was wrong, there were two problems:

1) The cable from the socket to the TV was damaged and degraded the signal somewhat
I replaced it with a cable from the other room, for which I'm getting a new cable soon.
2) Splitter no. 2 and a cable's one end going to it was broken, I fixed them with a knife and a screwdriver.

Now all three TVs have good signal.; ▶ Reply to This

Permalink Reply by Ben Page on August 26, 2009 at 6:46am: Good for you! I thought you checked all that before posting o_0. So it was the "worn cables" issue...; ▶ Reply to This

Permalink Reply by Johannes S. on August 26, 2009 at 6:48am: I did check it, but not that extensively as this time I carried a TV into the corridor of the building and tested the first splitter, then the second one, etc.

But, that cable going from the socket to the TV... it was NEW and had not been touched since purchase in June.; ▶ Reply to This

Permalink Reply by Anubis on August 26, 2009 at 8:45am: You need a line amp. some where along that line, you also should check the spliters, and it is possible you have to much on one line (A Line amp. would help there).

We had a similar issue.

-Anubis; ▶ Reply to This

Permalink Reply by Johannes S. on August 26, 2009 at 9:02am: Thank you for your reply, but I already got it working!; ▶ Reply to This

Permalink Reply by Justin on August 28, 2009 at 8:42am: That is one of my most commonly seen problems with my customers and like most, the answer is in the question. Analog cable has a much larger tolerance threshold for signal degradation. In the olden days when cable internet wasn't an option, the common fix would have been installing a in line amplifier as close to the beginning of the drop possible. It is now necessary to consider hunting down a bi directional amp or reconfiguring your layout. A common solution would be to install a splitter at the beginning of the drop and running a straight RG6 cable to the room with the modem and installing an amplifier on the second output.; ▶ Reply to This