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Having issues with HDMI splitter, with Cable Box.

post #1 of 7
Thread Starter 
For a few years I have had 3 TV's in my basement a 19" (25’ HDMI Cable), 32" (25’ HDMI Cable), and a 1080 Projector (3’ HDMI Cable), all connected with a 1x4 HDMI splitter (3’ HDMI Cable) that was connected to my HDMI/DVR cable box (Charter). Never had an issue.

In January of this year I decided to replace the projector with a 60” Vizio 1080 (New 25’ HDMI Cable). At the same time I updated all my cable boxes in the house to the new HDMI/DVR boxes offered by Charter. At first I had issues with the TV’s getting an HDMI signal, and I would have to unplug the HDMI cable from the back of the cable box, and hook up one of the TV’s and it would start working again. I had not noticed the rest button on the HDMI splitter. After I realized the rest button, all I would have to do is hit the rest button, and everything would work fine.

Last week I went to turn the TV’s on and could not get any of the TV’s to grab the HDMI signal. I hit the reset button, tried each TV one at a time connected directly to the cable box. I then took the cable box to one of the TV’s I had hooked up upstairs to a different HDMI box, and the only way I could get the box to work is using the components.. I then called Charter, because I assumed the box is what was giving me so much trouble, and it just finally went out. Well for a week after replacing the box, everything seemed to be work correctly….. Till last night, I started getting the same issue, I can only get the box to work connect via components. I did notice when I hit the reset button on my splitter while everything is hooked up the cable box, it does recognized I’m hitting the button, and for a split second the Cable box says dui across the front display, then it goes back to displaying the time. My two HDMI boxes up stairs when turning the TV on display “Conn”.

I do have a new 25’ HDMI cable I’m going to run to the new TV, and I was going to replace the Splitting before I hook it back up to the new cable box I’m getting tonight.

So where do I start looking for the issue?
Could it be the splitter going bad or maybe its just out of date. Its at least 2.5-3 years old?
Do all the TV’s have to match? I think one of the TV’s is a 720 VS the other two being 1080.
When I called Charter, they seamed to think it could be a setting on the Cable box.

Sorry to ramble on so much, I just want to give as much info as possible.

TIA
Lonnie
post #2 of 7
Quote:
Originally Posted by Im Lon 2 View Post

For a few years I have had 3 TV's in my basement a 19" (25’ HDMI Cable), 32" (25’ HDMI Cable), and a 1080 Projector (3’ HDMI Cable), all connected with a 1x4 HDMI splitter (3’ HDMI Cable) that was connected to my HDMI/DVR cable box (Charter). Never had an issue.

In January of this year I decided to replace the projector with a 60” Vizio 1080 (New 25’ HDMI Cable). At the same time I updated all my cable boxes in the house to the new HDMI/DVR boxes offered by Charter. At first I had issues with the TV’s getting an HDMI signal, and I would have to unplug the HDMI cable from the back of the cable box, and hook up one of the TV’s and it would start working again. I had not noticed the rest button on the HDMI splitter. After I realized the rest button, all I would have to do is hit the rest button, and everything would work fine.

Last week I went to turn the TV’s on and could not get any of the TV’s to grab the HDMI signal. I hit the reset button, tried each TV one at a time connected directly to the cable box. I then took the cable box to one of the TV’s I had hooked up upstairs to a different HDMI box, and the only way I could get the box to work is using the components.. I then called Charter, because I assumed the box is what was giving me so much trouble, and it just finally went out. Well for a week after replacing the box, everything seemed to be work correctly….. Till last night, I started getting the same issue, I can only get the box to work connect via components. I did notice when I hit the reset button on my splitter while everything is hooked up the cable box, it does recognized I’m hitting the button, and for a split second the Cable box says dui across the front display, then it goes back to displaying the time. My two HDMI boxes up stairs when turning the TV on display “Conn”.

I do have a new 25’ HDMI cable I’m going to run to the new TV, and I was going to replace the Splitting before I hook it back up to the new cable box I’m getting tonight.

So where do I start looking for the issue?
Could it be the splitter going bad or maybe its just out of date. Its at least 2.5-3 years old?
Do all the TV’s have to match? I think one of the TV’s is a 720 VS the other two being 1080.
When I called Charter, they seamed to think it could be a setting on the Cable box.

Sorry to ramble on so much, I just want to give as much info as possible.

TIA
Lonnie

The TVs don't have to match but then you would be limited to whatever the lowest common format is that the TVs can accept as input (not what they can display but what they can accept).

Here's the way I would go about trouble-shooting. First, remember that disconnecting live HDMI cables is not a good idea and can also throw off your test result. So power down and reset between each step.

1) Connect the cable box to each TV independently - no splitter. Make sure you power off each time (not just standby). If any of these test fail then you may have an incompatibility with the cable box to an older TV.

2) If you get a failure, take the cable box to the TV and try a short HDMI cable. If you still get a problem, then it's not likely a cable issue.

3) If all of the above works OK, then connect the splitter and one TV. Power off and add another TV. Then power off again and try all three TVs again. There should be an issue at some point. Try different combinations to see if you can pinpoint a common TV that causes the problem.

4) Report back on the results and we can go from there.
post #3 of 7
Thread Starter 
Thank you for your feed back.
Quote:
Originally Posted by alk3997 View Post

1) Connect the cable box to each TV independently - no splitter. Make sure you power off each time (not just standby). If any of these test fail then you may have an incompatibility with the cable box to an older TV.

I have unplugged the Cable box in questions, and have tried to go direct to each TV one a time, completely by passing the splitter. Still No luck
Quote:
Originally Posted by alk3997 View Post

2) If you get a failure, take the cable box to the TV and try a short HDMI cable. If you still get a problem, then it's not likely a cable issue.
I have let the cable box sit for over an hour unplugged, and brought it upstairs and hooked it up to my other TV. Still nothing through the HDMI.

I was able to get the box to work using components.
Quote:
Originally Posted by alk3997 View Post

3) If all of the above works OK, then connect the splitter and one TV. Power off and add another TV. Then power off again and try all three TVs again. There should be an issue at some point. Try different combinations to see if you can pinpoint a common TV that causes the problem.

I just had this same issue Last week, and had to have this same cable box replace. rolleyes.gif Charter is coming back out again today to look and see if they can figure anything out, but this is not the normal tech issue. I just don’t want to hook everything back up and have the same issues next week. It is weird that everything worked fine January till last week.

Also this is the HDMI splitter I have. I purshced this about 3 years ago.
http://www.rakuten.com/prod/4-port-1x4-powered-hdmi-splitter-v-1-3b-up-to-1080p-for-ps3-xbox-blu/223272722.html
Are there any known issues with this splitter?
post #4 of 7
I think you can safely eliminate the splitter if you took the cable box upstairs and connected it to another TV without the splitter. If the splitter isn't connected then it isn't causing the problem.

Do you have component video and HDMI hooked up at the same time? Some boxes will not allow that. Only the HDMI cable should be connected to the cable box. Also make sure you reset the cable box (not just leave it unplugged).

I suppose some type of menu setting could do this. If you were sending an incompatible format then I would expect the TV to say something like "unrecognized signal" or similar words.

So, if you're still getting the problem with a different TV hooked directly to the cable box using a different (small) HDMI cable, then I'd have to say this is likely a cable box problem (or setting).
post #5 of 7
Thread Starter 
Quote:
Originally Posted by alk3997 View Post

I think you can safely eliminate the splitter if you took the cable box upstairs and connected it to another TV without the splitter. If the splitter isn't connected then it isn't causing the problem.
But this is the 2nd box in a week to do this, I'm afraid to hook up a 3rd
Quote:
Originally Posted by alk3997 View Post

Do you have component video and HDMI hooked up at the same time? Some boxes will not allow that. Only the HDMI cable should be connected to the cable box. Also make sure you reset the cable box (not just leave it unplugged).
No I do not have the components hooked up at the same time. How do I reset the cable box? I cannot get the box to stop showing 480i I do remember having that issue befor and when I switch setting it worked. However this is a different box and this one does not have any buttons on the front except for a power button.
Quote:
Originally Posted by alk3997 View Post

I suppose some type of menu setting could do this. If you were sending an incompatible format then I would expect the TV to say something like "unrecognized signal" or similar words.
That is what I'm hoping! Charter will be here shortly but I don't know if this is going to be one of things there use to dealing with. I will have to just wait and see.
Quote:
Originally Posted by alk3997 View Post

So, if you're still getting the problem with a different TV hooked directly to the cable box using a different (small) HDMI cable, then I'd have to say this is likely a cable box problem (or setting).
I'm Still consered why back to back boxes have had this issue. And didn't have this issue the whole time it was setup in the past. Something has to be triggering it.
post #6 of 7
Thread Starter 
I did have another question though. What if I kept the cable box I have now and run the components to the HMDI splitter, with a component to HMDI converter? Would this keep the issues from when the cable box and tv's try and do a handshake, Or will this just cause more issues?
Edited by Im Lon 2 - 6/5/13 at 6:51pm
post #7 of 7
You mentioned that your cable box is only outputting 480i. Some TVs will not support 480i over HDMI but, of course, support it over component video. That could be your problem.

Use component video to switch the resolution to at least 480p (1080i or 720p would be better, of course). See if that helps.

In more technical terms, video formats with rates below 25 MHz (e.g., 13.5 MHz for 480i/NTSC) are supported but use a pixel-repetition scheme, which some TVs don't properly implement (giving credit - technical specs about 480i were found on Wikipedia).

If both boxes were set to 480i, that would explain why you are having problems with both.

Trying to use a converter will likely not fix your issue if it is because you are set at 480i.
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