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Topic:
Snap B300 HDMI 4x4 matrix ( Day From Hell)
This thread has 100 replies. Displaying posts 1 through 15.
Post 1 made on Thursday March 29, 2012 at 07:50
Gman
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Today we are installing our first HDMI matrix and reading the manual it states that we should have the learner. We didn't order one because the distributor had not received their opening order of the learners
My question is......is there a work around without using the learner or are we SOL without it.

TIA

Last edited by Gman on March 30, 2012 20:26.
Post 2 made on Thursday March 29, 2012 at 08:07
longshot16
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I needed it on my systen but only on my oldest TV. Might be ok but who knows.
The Unicorn Whisperer
Post 3 made on Thursday March 29, 2012 at 11:03
SnaperAV
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14
Gman,

Typically you do not need the learner, we find the learner is good for Commercial displays that some time look for PC resolutions. You can use the embedded EDIDs 1-8 that are in the matrix already. You can configure them from either the IR remote or use the PC software that came in the box. If you have any trouble at all please give us a call at SnapAV and we can walk you through it.

704.909.5229

Vernon Furr
OP | Post 4 made on Friday March 30, 2012 at 20:46
Gman
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So, we hooked it up.......and thought we had it working....until I started switching the matrix through the Crestron system. Really wierd thing was happening.

We have 2 TV's that we are outputting to ( new Samsungs). Inputs are 1 Rogers Cable Box ( SA something or other) and an older LG DVD player. Audio is through the Crestron DA system.

So I'm in the basement and the DVD Gui is showing fine on output 1. As soon as I put a DVD in, the picture flickers and goes away. Hmmmm......I then call tech support at Snap and they run me through learning the EDID for the DVD to 1080i....Ok no problem....the picture holds fine after this......

But as soon as I switch away from the DVD to cable on output 2, I lose the DVD picture on output 1. I switch back to the DVD on output 2 and my DVD picture comes back on output 1.

I check my Crestron programming to verify that there isn't something wierd going on there. Crestron switches fine. I use the Snap remote to manually switch the sources and the same behaviour is occuring.

So, on the phone with Snap TS again. The first question I was asked was how did you configure the cat6 wire. I said 568A. He said this is most likely the problem because they require 568B........

This happened at the end of the day so we haven't been able to change the pinout yet.......so my question is.......

Does it really matter if it's 568B vs. 568A? The cable input works fine.just not the DVD......I really want to know why the different pinout makes the difference. I'm green to HDMI switching...I've avoided it like the plague until now and I'm really trying to understand all of these issues.......

Last edited by Gman on March 30, 2012 20:56.
Post 5 made on Friday March 30, 2012 at 21:00
AVXpressions
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1,163
No. Doesn't matter. These companies tell you this because they know 99% of us use A. To use B we will most likely stop a minute and make sure we do everything just right since it throws us out of our normal routine.
Post 6 made on Friday March 30, 2012 at 21:02
TRCGroup
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Just out of curiosity, since you are using a Crestron system, why did you not use a DM matrix?
"You can't fix stupid."
Post 7 made on Friday March 30, 2012 at 21:02
scottedge267
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On March 30, 2012 at 20:46, Gman said...
So, we hooked it up.......and thought we had it working....until I started switching the matrix through the Crestron system. Really wierd thing was happening.

We have 2 TV's that we are outputting to ( new Samsungs). Inputs are 1 Rogers Cable Box ( SA something or other) and an older LG DVD player. Audio is through the Crestron DA system.

So I'm in the basement and the DVD Gui is showing fine on output 1. As soon as I put a DVD in, the picture flickers and goes away. Hmmmm......I then call tech support at Snap and they run me through learning the EDID for the DVD to 1080i....Ok no problem....the picture holds fine after this......

But as soon as I switch away from the DVD to cable on output 2, I lose the DVD picture on output 1. I switch back to the DVD on output 2 and my DVD picture comes back on output 1.

I check my Crestron programming to verify that there isn't something wierd going on there. Crestron switches fine. I use the Snap remote to manually switch the sources and the same behaviour is occuring.

So, on the phone with Snap TS again. The first question I was asked was how did you configure the cat6 wire. I said 568A. He said this is most likely the problem because they require 568B........

This happened at the end of the day so we haven't been able to change the pinout yet.......so my question is.......

Does it really matter if it's 568B vs. 568A? The cable input works fine.just not the DVD......I really want to know why the different pinout makes the difference. I'm green to HDMI switching...I've avoided it like the plague until now and I'm really trying to understand all of these issues.......

I don't know of any vendor that states use 568A. And they all recommend using B so I would say yes it does make a difference. 
OP | Post 8 made on Friday March 30, 2012 at 21:04
Gman
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On March 30, 2012 at 21:00, AVXpressions said...
No. Doesn't matter. These companies tell you this because they know 99% of us use A. To use B we will most likely stop a minute and make sure we do everything just right since it throws us out of our normal routine.

Hmmm...interesting...I asked the Snap tech and his answer was that it passes higher resolution better........???
OP | Post 9 made on Friday March 30, 2012 at 21:07
Gman
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On March 30, 2012 at 21:02, TRCGroup said...
Just out of curiosity, since you are using a Crestron system, why did you not use a DM matrix?

Budget...got in the way! :(
OP | Post 10 made on Friday March 30, 2012 at 21:09
Gman
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On March 30, 2012 at 21:02, scottedge267 said...
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I don't know of any vendor that states use 568A. And they all recommend using B so I would say yes it does make a difference. 

I'm trying to understand why it would make a difference
Post 11 made on Friday March 30, 2012 at 21:10
TRCGroup
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On March 30, 2012 at 20:46, Gman said...
So, on the phone with Snap TS again. The first question I was asked was how did you configure the cat6 wire. I said 568A. He said this is most likely the problem because they require 568B........

This would be nice information to have in the owner's manual. I couldn't find it in there anywhere.
"You can't fix stupid."
Post 12 made on Friday March 30, 2012 at 21:11
TRCGroup
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On March 30, 2012 at 21:07, Gman said...
Budget...got in the way! :(

You know what they say about getting what you pay for.
"You can't fix stupid."
OP | Post 13 made on Friday March 30, 2012 at 21:23
Gman
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On March 30, 2012 at 21:11, TRCGroup said...
You know what they say about getting what you pay for.

Lol..so true...I'm grieving the days of component matrices......
Post 14 made on Friday March 30, 2012 at 21:24
skyflyer007
Long Time Member
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July 2004
279
Whoever told you that wiring a CAT5 with the B standard is better performance than A is crazy and just wrong. There is absolutely no difference in performance with A or B type wiring. I have verified this with a network verification tester.

The only difference in the wiring is changing the orange and green pair.

Total BS if someone believes either method is better performance.
Post 15 made on Friday March 30, 2012 at 22:05
schlepp571
Long Time Member
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123
The difference is actually palpable. All of the manufacturers chose a standard and designed their data transmissions to be maximized by using that standard. The number of twists per unit length is the issue. The green and orange pairs have different number of twists. We all know how HDMI is finicky at best with the cable. Implement it over twisted pairs and use a different standard than recommended, boom issues most of the time. Micro-reflections can easily cause the issues you bring up due to non standard wiring terminations. Not saying that it is causing the real problem. I always pull shielded cat-6 for any HDMI matrix solution as I had nothing but problems with non-shielded. For the last year (fingers crossed while knocking on wood) I have had none on 4 Snap 4x4 matrix installs. Best of luck with finding the solution.
No, it doesn't come preprogrammed.
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