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Scientific Atlanta Explorer 4200HD DVI Problems

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Old 01-13-2005, 09:10 AM   #1
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Exclamation Scientific Atlanta Explorer 4200HD DVI Problems

I recently purchased a Philips 42PF9966 Plasma TV with a native resolution of 1024X768. It supports 480i, 480p,1080i, but not 720p, which is ok(it will down-convert 720P to 1080i). It has an HDMI input and came with a HDMI-DVI cable, which I think was so thoughtful of Philips. The cable box I got from Cablevision was the Explorer 4200HD, which has a DVI output. So I have the cable box connected to the tv, usin the DVI-HDMI cable. The problem is, that almost everytime, if I turn the cable box and tv on, they never "sync up" with each other. The cable box freezes, and then I have to turn the tv off, for the cable box to released from its "frozen"state so to speak. Then the cable box, goes through a start up process, as it would, if power was connected to it for the first time. Then after waiting several minutes, when the time display comes back on, I am able to watch the tv. I have gone through the cable box's hd setup, and have selected 1080i as the last format, so all programs are displayed on my tv at 1080i, unless I manually change them, or stretch or zoom them. When I have the above mentioned, problem, I sometimes momentarily see the following message "Your TV does not support HDCP. Please use the YPbPr Component connection on the Cable box". But then again, it always goes away, and I am able to watch tv, using the DVI connection. PLEASE HELP!!!!!!!!
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Old 01-13-2005, 10:08 AM   #2
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Default Dvi/hdmi

You're basically out of luck
I had the same problem
My Sony KD34XBR960 has HDMI
I have the same SA4200HD box, & HDCP problem
I had to switch to Component Video
The problem is the cable box is not HDCP compliant
The new SA8300HD is HDMI/HDMI, & is compliant with HDCP
Good luck, Carl
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Old 01-15-2005, 09:37 AM   #3
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Default Sa8300hd Dvr

I have the new SA8300 HD DVR box and everytime I turn mine on I was getting the notice that is is NOT HDCP compliant and to run the component connection of my cable box so I would assume that the box is not HDCP compliant. I can't run the HDMI out to my TV because the picture cuts in and out almost like a scrambled signal and sometimes goes right to a blank screen. I called the cable company and the guy came out and when I answered the door I noticed he had a package with the component cable in it. Once he got over to my tv he said that he wasn't even aware that the HDMI output was even turned on and back at the office they told him to tell me to run the component cable and that's why he brought one with him. Has anyone had this problem or can anyone point me in the right direction. I know that it is not the cable because I have a HDMI output on my DVD player and it works flawlessly.
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Old 01-15-2005, 10:00 AM   #4
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There have been many reports of this problem and the ultimate answer has been for the customers to hook up both DVI/HDMI and component cables. It seems the copy protection flag software has a bug in it and many cable companies although have turned on the port are not supporting it fully.


I'd say go ahead and connect the component cables so they are there for programs that give you problems through the DVI/HDMI input.
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Old 01-15-2005, 02:08 PM   #5
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I didn't use the component cable that cable tech brought because it was one of those cheesy looking ones that they supply when you get the HD package. I already had the monster component cables from earlier DVD hook ups. I still do have both component and the HDMI to DVI cables hooked up on my Sony LCD but there really is no point in it because you just get pissed off when watching the tv using the HDMI port because of the problems it has. Honestly when it does work for a few minutes at a time I don't see any diffference when flipping back and forth from the component cable to the HDMI cable. I was expecteing this huge noticable difference but I can't see much difference at all.
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Old 01-15-2005, 05:54 PM   #6
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That's where most people end up.
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Old 01-16-2005, 05:10 AM   #7
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The proper procedure, when DVI or HDMI is connected, is to:

- First turn on the TV

- Then turn on the STB

Once the STB is turned on, it attempts to establish two-way communications with the TV. There is a system by which the TV identifies itself, litteraly. Until that is done, which is called a handshake, the HDCP protocol associated with DVI and HDMI will not allow transmission of the digital data.

Whether the PQ is better than Component or not, is not the object (however, most users of digital displays see an improvement). With the upcoming use of a broadcast flag by mid year, if your STB is equipped with an HDCP output (DVI or HDMI) you will need to use the compliant HDCP connection to receive certain programs in HD, should the broadcaster elect to downgrade the Component connection to SD (480i). FCC has allowed broadcasters to downrez if they file a 30 day advance notice that they will do this.

The FCC has allowed legacy equipment to maintain HD signal with Component. That means that the STB used does must not have an HDCP output (DVI or HDMI).
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Last edited by mfabien; 01-16-2005 at 05:17 AM.
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Old 01-16-2005, 12:03 PM   #8
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Hey Mfabien you the man!! I went down and shut everything off and I actually rebooted the cable box. I turned the TV on first and waited for it to come on then I turned on the box and it has been glitch free for over an hour and that has never happened because usually it starts messing up within minutes of being turned on. Why didn't the cable company know this???? I watching the FOX NFL playoff game right now and it does look pretty damn impressive but I'm not sure after flipping back and forth that it looks any better than my component hook up but I am super pleased that you seem to have solved my problem at least. Thanks a bunch, Mike D
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Old 01-16-2005, 12:46 PM   #9
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The question has got to be, "what were they thinking when they designed the STB?" This workaround is fine for those that know about it and insist on using the HDMI/DVI connection, but it is not a good solution for people like me that install equipment for other people.

What happens is we tell the husband how to sync up the two boxes (which should not be necessary) and he is fine with it. We leave and the next day we get a call because the wife can not get the darn thing to work. Even after explaining the power up sequence to her she will forget it the next day, because it does not make any sense to have to do that!

What most people do in pratice is they leave their STB on all of the time and turn the TV off and on. Obviously if the sequence is to turn the TV on first and then the STB, it goes against the way people use the equipment. That is why I rarely suggest this workaround and hook up both the component and DVI/HDMI cables if DVI/HDMI connection is insisted upon, so the wife can just select the component input to watch TV. The hubby can go through the sequence (which he will remember because it is important to him) to watch what he feels like is the very best possible video.

Until the STB manufacturers fix this bug, the cable companies (and satellite companies also for that matter) will allways suggest the component cable route.
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Old 01-16-2005, 02:41 PM   #10
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Have the same problem and have found that even if I turn TV off and leave STB on the two will still lose "sync". I have both component and HDMI connected to same input but seems like Box defaults to HDMI.
Currently I have to disconnect HDMI when I'm not home so family can watch TV and connect hdmi cable and reboot box when I'm settling in for some serious viewing(ie:NFL playoffs).

For my money the HDMI (to DVI)connection gives a cleaner picture.

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Old 01-16-2005, 02:48 PM   #11
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Default Hmmmmm............... PT2

Well it's been on all day and no glitching what so ever. Why didn't the cable company tell us this in the first place.... It is a simple process and my wife can certainly handle it no problem. Thanks again Mfabien and this site really does rule. I have learned so much in the last two months on here. Mike D
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Old 01-16-2005, 09:27 PM   #12
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You can see why we try to just use the component connection. The only DVI we have had sucess with is a Zenith SAT520 satellite receiver connected to a Zenith plasma. That's pretty much bulletproof.
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Old 01-16-2005, 10:21 PM   #13
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You're right.....this is too hard. Tv starting to become as complicated as computers!
And actually ,for me , the solution isn't simply turning TV on before STB......but actually rebooting the STB after turning TV on.
too complicated.

Last edited by brianwat; 01-16-2005 at 10:25 PM.
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Old 01-17-2005, 10:58 AM   #14
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I was able to configure to program my SA8000HD remote AT8400-D to power up my TV and the DVR. It does that sequentially by:

- First, it powers up the TV

- Then the STB/DVR SA8000HD

both with the one single push of the Power button.

Then, when I'm done, I press the Power button on the AT8400-D and powers down the STB/DVR followed by the TV.

Suggest to all who use DVI, HDMI or a combination of both to explore the possibility to use your STB remote to power up the TV.

In my case, I went to the Scientific Atlanta site a accessed the operators guide for the remote at:
http://www.scientificatlanta.com/exp...%20Control.pdf

and followed instructions at page 8 and used code 991.
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Old 01-19-2005, 08:29 AM   #15
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Default Turn on sequence

MFABIEN and RBINCK

I have the SA8003 HD and tried the TV then STB turn on seguence, but it did not work. I disconnected the HDMI/HDMI connection and used the component set up which worked. The picture was okay but not the sound quality.

Should I expect that the HDMI work if I use the turn on sequence. It did for 2 months then decided not to work one day last week.
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