CurtPalme.com Home Theater Forum

[Flash]

Did my geometry and convergence based on a 16:9 Blu Ray source. This created an initial memory block 1, which works for Blu Ray discs.

Played a fairly recent DVD using the same source, and that created a second memory block. Was then able to copy settings from the original memory block 1 onto this, and only had to alter the H-phase a little to get a perfect picture.

Problem with older DVDs though. Played one, and that created a third memory block. Copying the settings from either block 1, or block 2 result in a much smaller picture, like the projector isn’t upscaling it properly. There’s not enough horizontal adjustment to expand it to full size. Do I need to add a video scaler, or is there a way to get the projector to scale these older DVDs properly? Strikes me as weird that it scales more modern DVDs perfectly.

[AnalogRocks]

It's probably one of 3 things:

1. You have the Bluray player hooked up via Component, this will allow Bluray at 1080i, NON-copy protected DVD's up scalled to 1080i. and copy protected to play at 576P. This is likely why it set another memory location.

2. Your current DVD's are likely anamorphicaly encoded on the disk. This allows more picture information 'wall to wall' and top to bottom as it were. Older DVD's were often letterboxed so you have the black bars at the top and bottom of the active picture area. This may be causing the lack of active picture information to fill your 909's screen. Also it may be the 576P limit I spoke of earlier. If you are running Component output older copy protected DVD's that are letterboxed would have that 'postage stamp' syndrome where you run out of adjustment before the picture fills your screen.

3.If you are running VIA HDMI the digital signal timing tend to not have enough 'porch pixels' to fill the screen entirely. This can be fixed with a scaler of HTPC if you are PC savvy. Or try an older DVD player that can scale to 576P.

[AnalogRocks]

It's probably one of 3 things:

1. You have the Bluray player hooked up via Component, this will allow Bluray at 1080i, NON-copy protected DVD's up scalled to 1080i. and copy protected to play at 576P. This is likely why it set another memory location.

2. Your current DVD's are likely anamorphicaly encoded on the disk. This allows more picture information 'wall to wall' and top to bottom as it were. Older DVD's were often letterboxed so you have the black bars at the top and bottom of the active picture area. This may be causing the lack of active picture information to fill your 909's screen. Also it may be the 576P limit I spoke of earlier. If you are running Component output older copy protected DVD's that are letterboxed would have that 'postage stamp' syndrome where you run out of adjustment before the picture fills your screen.

3.If you are running VIA HDMI the digital signal timing tend to not have enough 'porch pixels' to fill the screen entirely. This can be fixed with a scaler of HTPC if you are PC savvy. Or try an older DVD player that can scale to 576P.

[Flash]

I’m connecting a Denon BluRay player via HDMI. It never had any problem upscaling these DVDs to my other systems.

[AnalogRocks]

[AnalogRocks]

[Flash]

A SIM2 1080p 3-chip DLP projector.

[kal]

Do you have either of the following scaling kits installed in your 909?:

Line Doubler (LIDO) Kit R9828161
Line Multiplier (LIMO) kit R9828630

Other than special cases like the above, CRT projectors have absolutely no scalers built in. They're not like fixed pixel digital projectors (like your SIM2) that absolutely must have scalers built in to scale up to use all of the available pixels. CRT projectors show exactly what you feed them and the pixels are simply larger. Your SIM2 was always scaling everything to it's native 1920x1080 resolution no matter what you feed it.

So if your Barco 909 projector is creating a new memory black on old vs new DVDs it's because your DVD player is outputing a different resolution/refresh rate combination for old DVDs vs new. See what AnalogRocks mentions.

Kal

[kal]

Do you have either of the following scaling kits installed in your 909?:

Line Doubler (LIDO) Kit R9828161
Line Multiplier (LIMO) kit R9828630

Other than special cases like the above, CRT projectors have absolutely no scalers built in. They're not like fixed pixel digital projectors (like your SIM2) that absolutely must have scalers built in to scale up to use all of the available pixels. CRT projectors show exactly what you feed them and the pixels are simply larger. Your SIM2 was always scaling everything to it's native 1920x1080 resolution no matter what you feed it.

So if your Barco 909 projector is creating a new memory black on old vs new DVDs it's because your DVD player is outputing a different resolution/refresh rate combination for old DVDs vs new. See what AnalogRocks mentions.

Kal

[Flash]

Thanks Kal - that explains it!

There’s enough adjustment to get the picture to fill the screen vertically, but not horizontally. What’s the best solution for the 909? I have an old Crystalio scaler that was used on my 808, it can’t do HDMI, but I still have an old Denon DVD player with an SDI connection that can hook up to it. The Crystalio can output DVI, so I guess I could just attach a DVI - HDMI convertor. Alternatively I could feed the Crystalio via DVI by converting the HDMI output from my Denon Blu Ray player.

Would either of these options be the best way to go, or should I purchase some other piece of kit?

[kal]

What are you using today to scale the image up? A 909 is fairly sharp so I'd recommend running it at 1080p (1920x1080).
I'd throw one of these HDMI cards into the Barco: http://www.curtpalme.com/BARCO-FULLHD.shtm
Then set the source to 1920x1080 as your Blu-ray player has a built-in scaler. Make sure to run it at 60Hz, not 24Hz. HDMI cable from your Blu-ray player to the projector. Throw a receiver/pre-amp in-between if you want. That's all you need.

Kal

[kal]

What are you using today to scale the image up? A 909 is fairly sharp so I'd recommend running it at 1080p (1920x1080).
I'd throw one of these HDMI cards into the Barco: http://www.curtpalme.com/BARCO-FULLHD.shtm
Then set the source to 1920x1080 as your Blu-ray player has a built-in scaler. Make sure to run it at 60Hz, not 24Hz. HDMI cable from your Blu-ray player to the projector. Throw a receiver/pre-amp in-between if you want. That's all you need.

Kal

[Flash]

My 909 has the Eisemann HDMI card in it, that’s how my BluRay player connects in. I wanted to scale up to 1080p.

[Curt Palme]

Then the resolution of the display is set by the BluRay player. The projector will display whatever resolution it receives.

[Curt Palme]

Then the resolution of the display is set by the BluRay player. The projector will display whatever resolution it receives.

[km987654]

[wanderer]