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Setting up Scientific Atlantic cable boxes to "pass-through" the source resolution

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Old 12-31-2009, 04:07 PM   #1
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Default Setting up Scientific Atlantic cable boxes to "pass-through" the source resolution

Most cable/sat boxes have poor scalers and deinterlacers so it is almost always better to let the HDTV scale the source material to the HDTV's native resolution. Here is how to do it:

To get into the setup wizard do this:

Make sure the TV is ON.
Make sure the HD3250 is OFF.
Press INFO & GUIDE buttons on the BOX (not remote) at the same time.

Select the advanced setup wizard and only setup the following resolutions:

480p, 720p, & 1080i

You set it up this way so that when you use the Pass-Through option (explained below) in the Cable box it allows this signal to go to the TV so the TV can do the conversion to 1080i. It probably does it better than the cable box does (at least on mine it does).

After you get it all done and save it, shut off the cable box wait 5 seconds then turn it on and hit the MENU/Settings button on the remote TWICE. Scroll up to the Set: Picture Format and choose Pass-Through.

You can also try; Fixed, & Upscale 1 too. Upscale 1 converts everything to 1080i, even the 480 SD signals, but it is the cable box doing the scaling. Don't use the Upscale 2, this changes everything to 720p which your CRT RPTV does not display.

Then hit exit.

Hope this helps!
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Old 01-02-2010, 02:14 AM   #2
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i have the ipn330hd model, there is only a power and menu button and the OK button with the 4 cursors.
how do i set this for pass through?
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Old 01-19-2010, 11:04 PM   #3
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Originally Posted by PFC5 View Post
Select the advanced setup wizard and only setup the following resolutions:

480p, 720p, & 1080i
If I have both 480p Widescreen and 480p Standard options, I choose Widescreen, right?

Edit: Am I losing anything by not choosing all the other resolutions too, such as 480i and 720i?

Quote:
After you get it all done and save it, shut off the cable box wait 5 seconds then turn it on and hit the MENU/Settings button on the remote TWICE. Scroll up to the Set: Picture Format and choose Pass-Through.
Just a quick note, on my 8300HD box, the "Pass-Through" option is called "Auto DVI/HDMI"

Edit: And just for my information, if I want to change it back to the default, non-Pass Through setting (I assume that was "Fixed"), do I just need to change the Picture Format option from the remote, or do I need to go back into the box settings and reselect other/all resolutions?

Thanks.
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Old 01-20-2010, 06:18 AM   #4
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Auto DVI/HDMI will be the option if you connect the HDTV and the SA box with a HDMI cable for example. If you use component cables you will see the Pass Through option.

Personally I have gone back to the Easy Setup Instructions and simply select the widescreen 16:4 then select Pass Through. I have two HDTVs using component cables. That way I get all resolutions. See page 5.

http://www.cisco.com/web/consumer/su...s2/4004007.pdf

If you work through the Advanced Setup option then try all of the resolutions and see which ones you like best. Delete or add as necessary. Its all personal opinon anyway...
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Old 02-05-2010, 11:22 AM   #5
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I have an SA HD box, model Explorer 4250 HDC. Connection is HDMI. I tried pressing INFo & GUIDE buttons together with box off and tv on, and got nothing. Maybe it won't work on this model. Thanks !
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Old 02-05-2010, 12:40 PM   #6
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I have an SA HD box, model Explorer 4250 HDC. Connection is HDMI. I tried pressing INFo & GUIDE buttons together with box off and tv on, and got nothing. Maybe it won't work on this model. Thanks !
Just to be sure, did you press INFO and GUIDE on the *box*, not the remote?
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Old 02-07-2010, 04:25 AM   #7
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yes... pressed both on box, not remote.
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Old 05-29-2010, 12:58 PM   #8
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What's the difference from setting the picture to fixed at those resolution and having it set to pass-through?
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Old 07-12-2010, 08:59 PM   #9
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Quote:
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I tried pressing INFo & GUIDE buttons together with box off and tv on, and got nothing.
Same here.

My cable box/DVR is a Scientific Atlanta 8300HDC, and for some reason it is suddenly only receiving 480p signals.
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Old 08-09-2010, 08:00 PM   #10
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Just do as PFC5 said back home,it works immediately,but it does not work when i second or third turn on the box.I have no idea what is the problem.
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Old 11-24-2010, 10:10 PM   #11
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Hi everyone,
I have the Explorer 3250 (no HD). Will this process work here or do I need a more modern cable box?
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Old 11-25-2010, 05:42 AM   #12
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Quote:
Originally Posted by excalibur313 View Post
Hi everyone,
I have the Explorer 3250 (no HD). Will this process work here or do I need a more modern cable box?
If you don't have a HDTV connected to it then no you don't need a different set-top-box unless of course you want a DVR included. The procedure will not pertain to you.

If you recently connected a new HDTV to the SA 3250 then I would arrange for a HD set-top-box (with or without a DVR) from your cable TV provider whoever that is. Keep in mind many cable providers, ie. like Cox in my area, are switching from SARA to Passport. That makes the instructions for configuring available video resolution pass through different.

So, do you have an HDTV connected to the 3250 box?

Who is your cable provider?
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Old 11-25-2010, 06:27 AM   #13
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Hi there,
Thanks for the fast response! I have Time Warner Cable up in Maine and I just bought a Samsung 3D TV so I am trying to figure out the best way to connect it.

The SA 3250 only has SVideo and RCA video outputs which pretty much made my skin crawl, so that is why I was hopeful I could use a bypass feature with the Coax output. The TV has a tuner built in but it doesn't get all the channels so I don't think I can get away with circumventing the box all together which is why I thought that a bypass feature might be useful.

I do see a bypass light on the front of box which is why I thought that it might work, but when going through the cable box the TV doesn't detect any signal so going through so I wasn't seeing the menus. I did try hooking it up via the RCA cable so I could see what was going on but it didn't appear that pressing those two buttons at once brought up any screen. Am I just going to have to wait until I can convince Time Warner to give me a newer box?

Anyway, thanks for your help!
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Old 11-26-2010, 06:30 AM   #14
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To get all of the HD channels you need to get a HD capable set top box from TW. They provide them with or without a DVR built-in. Of course this may add cost depending on which channels/packages you subscrible to.

You can connect the cable coax directly to your TV but you will only get a small subset of HD channels, primarily the locals in HD, but none of the encrypted HD channels like ESPN/Discovery/etc or any premiums channels in HD like HBO or Showtime for example.

Connect the HD set top box to your HDTV via HDMI or component cables, ie. 3 video/2 audio. Don't purchase an expensive HDMI cable. There is virtually no difference between a $10 HDMI cable or a $50 HDMI cable. Also, in my experience, component cables are just as good as far as picture quality is concerned.
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Old 11-26-2010, 09:46 AM   #15
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Thanks again for the help. I ended up swapping out with a 3250HD and I currently have it hooked up through component cables and was trying to get to the manu by pressing the guide and info buttons at the same time. Do you have to hold them down for a while or something? This is pushing them on the unit itself. Is there some step I am missing after pressing the two buttons together? The unit seems to be off and is only displaying the time.
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