DVDO VP30 and VP50 doesn't work

[BuckoA51]

Serial communication with the DVDO does not require special drivers, all it’s doing is squirting zeros and ones down a port. No drivers are even talked about in the step by step guide.

If it was another scaler like e.g an Optoma where they wrote their own custom firmware updater software then yes, I could understand it.

They may be right, but I cannot see a reason for it.

[BuckoA51]

Working fine for me on Windows 10 x64. I would suggest the problem is maybe your USB to serial adapter.

[mrblack1]

So why the guy from DVDO sent me the driver by email ? there is a driver, it’s a usb to serial adapter.

[BuckoA51]

They should be plug and play, no special driver needed.

[mrblack1]

I have a black terminal but with no instruction at all like you. Maybe it’s a problem specific to the vp50 not the vp50pro ?
Can you give the exact model of your serial cable please ?

[mrblack1]

Which baud rates did you use ? are you on the hardware mode ?

[BuckoA51]

USB to legacy serial adapter is a generic no name/no brand one.

57600 baud (though as I say you will need to try available options from 57600 down as it depends what the last person left it on on the VP50)

8 bit data, no parity, 1 bit stop.

VP50 will only send that message to Teraterm once, change settings on the PC then power cycle the VP50 and see if you get the message.

[mrblack1]

Wow ! i just tried, it works !!

Just to help people who could have the same issue, before i didn’t succeed to update the vp50 because i first powered cycle the VP50 and then made setting on the pc. i succeed now because i followed this : “VP50 will only send that message to Teraterm once, change settings on the PC then power cycle the VP50 and see if you get the message”

[mrblack1]

Thank you very much !! now it loads the firmware i’m waiting, i hope, i pray that it will work !

[mrblack1]

The update worked perfectly !! i’m so happy i can now navigate the menu of the vp50.
The last problem is the same that i have with the vp30 : it works on my hdtv plasma but it doesn’t work on my 4k tv

I still not received the voltage hdmi injector yet.

[mrblack1]

Ok so i received today the hdmi voltage inserter, i made test and here the results :

I tested the device directly on the output of the vp50 : it doesn’t work
directly on the hdmi input of the 4k tv : it doesn’t work
on the input of one of my switch hdmi : it doesn’t work

…and bingo, on the input of another switch hdmi : it works but…with no sound…arf !!

i verified if i was on the audio options of the vp50 on the hdmi input audio, i am and no sound.

I also tested the accessorie on the input hdmi of the xbox and it also worked, only image, no sound

For the vp30, it only worked with the xbox, it didn’t worked on the switch hdmi but also only image no sound.

I don’t know where this problem comes from, any idea ?

[Mr.Ash]

I have to dig up this old thread.

I am experiencing similar problems with the DVDO iScan VP30 and VP50 and 4K HDTV’s. Normally I use the two DVDO’s on my older Sony KDL-46HX800 Full HD 1080p TV, where they work fine.
But when I connect the DVDO’s to my new Sony KD-65AG8 4K OLED HDTV, I get a completely crooked and distorted picture.

What I noticed is that this problem on the 4K HDTV is related to the progressive output signals of the DVDO’s. If I select a progressive output signal (e.g. 1080p, 720p or 480p) the picture is skewed and distorted. But if I select an interlaced output signal (e.g. 1080i, 576i or 480i) the picture is displayed correctly but with the typical interlace flickering.

The information above is wrong. It just seemed to work at first, but in the 2nd atempt it turns out to show the same behaviour.

I can also imagine that the HDCP copy protection of the HDMI connectors of DVDO’s and new 4K HDTV’s are not 100% compatible anymore. I doubt that one can reproach DVDO in this respect, after all 4K was not an issue when the VP30 and VP50 units were released (2006).

These problems could certainly be solved by firmware, but since support for these devices has long since been discontinued, that won’t happen anymore. Unless a skilled hobby programmer takes care of it and develops a new firmware for it.

[BuckoA51]

I doubt it has anything to do with HDCP else you would not get a picture at all.

50 Pro and iScan Duo work fine on LG 4K TV, I’ve no idea how Sony could mess this up to be fair it is not a non-standard signal.

I doubt anyone will fix it as there’s scant reason to use these old scalers on a 4K TV.

[Mr.Ash]

In the meantime I have taken a step further by connecting my PS1 (via composite video). With the VP30 the situation is unchanged -> no picture, but surprisingly sound. With the VP50 I suddenly have a picture, but no sound.

For me it will boil down to the fact that I will use the VP50 on a 4K HDTV in the future, because at least I will get a correct picture here. The sound will be transferred directly to my AVR via the digital coaxial output. I will continue to use the VP30 on my old Sony KDL-46HX800 FullHD, or I will get a compatible 4K HDTV (LG seem’s to offer some good unit’s).

On the other hand one must also say that it was never intended to use these old DVDOs on a 4K HDTV. As far as the HDMI interface is concerned, there is much more than just picture and sound data transmitted (control signals, Ethernet, etc.). It’s quite possible that this will confuse the old DVDOs because they can’t expect/process this information and therefore errors will occur.

Just as an example:
With my VP30 I also had big problems with the Sony KDL-46HX800 in the beginning. Most of the time the HDTV did not show any picture when it came from the VP30. After long back and forth in troubleshooting I found out that the 3D infrared transmitter of the TV itself (needed for the 3D glasses) causes the error. After I disconnected it, the VP30 and HDTV get along very well with each other. Maybe this is all but a peculiarity of Sony HDTV devices.

[Mr.Ash]

In the meantime I have found a surprisingly simple solution. I just have to select the resolution for 1080p-60Hz in the video output settings, then increase the horizontal resolution from 1920 by one pixel to 1921. Now the picture is displayed correctly on my Sony KD-65AG8 4k HDTV. This solution works for both the iScan VP30 and the VP50.

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