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Author Topic: 15Khz RGB YUV Video to VGA Converter Scaler For Amiga Atari Apple IIGS  (Read 11859 times)

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Offline djos

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I've got that RGB-VGA Converter too and it's terrible, my el cheapo GBS-8220 is much better - theres a new one that I've ordered to test that converts SCART RGB straight to HDMI or DVI-D with native 50/60hz support and is only $45aud.

http://www.amibay.com/showthread.php?t=20468&goto=newpost

one of the lads over at AmiBay has had reasonable results so far:

http://www.amibay.com/showthread.php?t=20468&page=60
« Last Edit: April 10, 2013, 01:12:26 AM by djos »
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Offline djos

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Quote from: mrknight;731676
So what about this one? Seems cheaper and apparently people are using them for Amiga. Anyone here using these?

http://www.ebay.com/itm/160774242389?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649
Thats the GBS-8200, they work fine and are very cheap - PQ varies wildly tho from reasonable to poor depending on cable qulaity etc.
[SIGPIC][/SIGPIC] Amiga 1200 w/ ACA1220 16Mhz 128MB w/ RTC, 4GB CF-HDD, Roland MT-32 MIDI Synthesiser
Amiga 500 w/ KS2.05, 1Mb Chip-Ram, CF-IDE w/4MB Fast-Ram, FDD Boot Selector, HxC RevC Floppy emulator
Commodore 64 w/ 1541 Ultimate-II inc Tape Adapter, JiffyDOS, 1541 Disk Drive, 1531 Datasette, Flyer Net Modem
 

Offline djos

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Quote from: amiman99;731677
There is another converter that works on Amiga: ACV-011, I personally did not tested it:
http://www.ebay.com/itm/350405432558?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1438.l2649
The review can be found here: http://stuffprojects.free.fr/index.php?option=com_content&task=view&id=14&Itemid=29

Double price the GBS, but cheaper then the Above scaler.


The SCART to HDMI/DVI-D converter is only $45aud from China or about 30P in the UK:

http://www.amiga.org/forums/showthread.php?t=64634&goto=newpost
[SIGPIC][/SIGPIC] Amiga 1200 w/ ACA1220 16Mhz 128MB w/ RTC, 4GB CF-HDD, Roland MT-32 MIDI Synthesiser
Amiga 500 w/ KS2.05, 1Mb Chip-Ram, CF-IDE w/4MB Fast-Ram, FDD Boot Selector, HxC RevC Floppy emulator
Commodore 64 w/ 1541 Ultimate-II inc Tape Adapter, JiffyDOS, 1541 Disk Drive, 1531 Datasette, Flyer Net Modem
 

Offline djos

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Quote from: WeiXing3D;731689
Does anyone here in the forum which cable is needed to hook up an A1200 to the Analog RGB HDMI To HDMI Video Audio Converter Scaler?n(see the unit here http://www.ambery.com/rgbtohdvisch.html)


this one from Amiga kit will work fine:

http://amigakit.leamancomputing.com/catalog/product_info.php?cPath=50&products_id=226
[SIGPIC][/SIGPIC] Amiga 1200 w/ ACA1220 16Mhz 128MB w/ RTC, 4GB CF-HDD, Roland MT-32 MIDI Synthesiser
Amiga 500 w/ KS2.05, 1Mb Chip-Ram, CF-IDE w/4MB Fast-Ram, FDD Boot Selector, HxC RevC Floppy emulator
Commodore 64 w/ 1541 Ultimate-II inc Tape Adapter, JiffyDOS, 1541 Disk Drive, 1531 Datasette, Flyer Net Modem
 

Offline djos

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And we don't have it in aus either but that didn't stop me buying an Amiga to scart cable and the scart to hdmi converter.
[SIGPIC][/SIGPIC] Amiga 1200 w/ ACA1220 16Mhz 128MB w/ RTC, 4GB CF-HDD, Roland MT-32 MIDI Synthesiser
Amiga 500 w/ KS2.05, 1Mb Chip-Ram, CF-IDE w/4MB Fast-Ram, FDD Boot Selector, HxC RevC Floppy emulator
Commodore 64 w/ 1541 Ultimate-II inc Tape Adapter, JiffyDOS, 1541 Disk Drive, 1531 Datasette, Flyer Net Modem
 

Offline djos

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Quote from: LaserBack;731763
you really don't need those
if a monitor have HDMI input means that will accept 15hz amiga modes through VGA input
 because those monitors have internal circuitry that do the same that the adapter scart to hdmi
so you will need only a normal Amiga VGA adapter+ a monitor with HDMI input

examples:

Dell U2410
Samsung  syncMaster 2493HM
BenQ G2420


Most monitors and TV's outside of Europe dont support 15khz RGB modes because they dont support scart - the only screen I have that can handle 15khz via VGA is my 50" Pioneer professional Plasma Monitor in my lounge room.
[SIGPIC][/SIGPIC] Amiga 1200 w/ ACA1220 16Mhz 128MB w/ RTC, 4GB CF-HDD, Roland MT-32 MIDI Synthesiser
Amiga 500 w/ KS2.05, 1Mb Chip-Ram, CF-IDE w/4MB Fast-Ram, FDD Boot Selector, HxC RevC Floppy emulator
Commodore 64 w/ 1541 Ultimate-II inc Tape Adapter, JiffyDOS, 1541 Disk Drive, 1531 Datasette, Flyer Net Modem
 

Offline djos

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If your monitor supports 15khz modes you only need an Amiga to VGA adapter (amigakit sells them) and a normal VGA cable.

My Samsung monitor supports 15khz modes but only at 60hz and my miggies are all 50hz models.
« Last Edit: April 11, 2013, 05:12:13 AM by djos »
[SIGPIC][/SIGPIC] Amiga 1200 w/ ACA1220 16Mhz 128MB w/ RTC, 4GB CF-HDD, Roland MT-32 MIDI Synthesiser
Amiga 500 w/ KS2.05, 1Mb Chip-Ram, CF-IDE w/4MB Fast-Ram, FDD Boot Selector, HxC RevC Floppy emulator
Commodore 64 w/ 1541 Ultimate-II inc Tape Adapter, JiffyDOS, 1541 Disk Drive, 1531 Datasette, Flyer Net Modem
 

Offline djos

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Ok I got my SCART-HDMI adapter today and initial impressions are very good - I've had it connected to my Samsung 22" LCD Monitor via both HDMI and DVI-D to test out the TV Modes and PC modes using my a1200 running ClassicWB Full with an AmigaKit DB23-SCART Cable.

I've found 720p@50hz via HDMI to be the best compromise so far as my screen isnt native 1080p. There is a very subtle softening effect around the moving mouse cursor and when things appear on screen in WorkBench (might be my Samsung LCD but im not sure yet) but this is not noticeable during during the 1/2 dozen demo's i've tried. Also of note in 720p@50hz, all scrolling is perfectly smooth. :)

The colour from this unit is absolutely superb, the best i've seen from a converter - I did have to turn down the brightness on my screen till the "black" border vanished (was a bit grey), but once I did this I was very impressed with the black levels and colour reproduction. The gradients are perfectly smooth too, firing up AGA tweaked Dopus reveals perfect colour transitions and no banding at all!

Oh and I fired up RSCP (Drive speed test) which gave the VGA converter a hard time and the SCART-HDMI converter easily and almost instantly shifted to the high-res laced mode with no fuss at all revealing a pin sharp display and no wobbly images. :)

Fine patterns, like the one in the WHDLoad "loading" window are also rendered extremely well. Another item of note is that it will convert 50hz to 60hz in the PC modes and scrolling smoothness, while not perfect as in the 50hz modes, is still decent considering.

Im prolly not going to have the time to take some pics for a few days with my prosumer camera so sorry about that, I quickly tried my iPhone 4s but it washes out the Red's and makes them look orange so just doesnt do the image justice.

One problem I have encountered (not the adapters fault) is my 19" Mitsi LCD seems to have a broken DVI-D port which is most annoying - at first I thought my HDMI-DVI-D cable might be faulty but it worked fine on my Samsung LCD. I cant even force the blasted screen to manually switch to DVI-D in the OSD, it just falls back to VGA each time. very frustrating as this is my Amiga Screen! :(

-------------------------------------------------------------------------------------------------

I also found some time to plug the SCART-HDMI Adapter and a500 into my 32" Sony Bravia using HDMI and the results are great - just a superb picture!!! :)

I find myself using the 1024x768@60 mode tho because my TV annoyingly wont let me squash a 720p or 1080p picture into 4:3 ratio!

That said I've been playing SWIV and BombJack on my 32" TV and having a blast!!! :D

The only issue I've found is with my AmigaKit RGB-SCART cable, the left and right channels are swapped around (confirmed with my multimeter) - so other than needing to swap the RCA's over, the sound conversion is excellent thru the SCART-HDMI adapter! :cool:
[SIGPIC][/SIGPIC] Amiga 1200 w/ ACA1220 16Mhz 128MB w/ RTC, 4GB CF-HDD, Roland MT-32 MIDI Synthesiser
Amiga 500 w/ KS2.05, 1Mb Chip-Ram, CF-IDE w/4MB Fast-Ram, FDD Boot Selector, HxC RevC Floppy emulator
Commodore 64 w/ 1541 Ultimate-II inc Tape Adapter, JiffyDOS, 1541 Disk Drive, 1531 Datasette, Flyer Net Modem
 

Offline djos

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« Last Edit: April 23, 2013, 04:26:57 AM by djos »
[SIGPIC][/SIGPIC] Amiga 1200 w/ ACA1220 16Mhz 128MB w/ RTC, 4GB CF-HDD, Roland MT-32 MIDI Synthesiser
Amiga 500 w/ KS2.05, 1Mb Chip-Ram, CF-IDE w/4MB Fast-Ram, FDD Boot Selector, HxC RevC Floppy emulator
Commodore 64 w/ 1541 Ultimate-II inc Tape Adapter, JiffyDOS, 1541 Disk Drive, 1531 Datasette, Flyer Net Modem
 

Offline djos

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It also converts composite and s-video using a cheap scart plug adapter.

Btw mine came with a travel adaptor and the PSU is multi voltage. Also considering it is only $10aud dearer than a gbs8220 and is in a metal case I think it's very good value.
[SIGPIC][/SIGPIC] Amiga 1200 w/ ACA1220 16Mhz 128MB w/ RTC, 4GB CF-HDD, Roland MT-32 MIDI Synthesiser
Amiga 500 w/ KS2.05, 1Mb Chip-Ram, CF-IDE w/4MB Fast-Ram, FDD Boot Selector, HxC RevC Floppy emulator
Commodore 64 w/ 1541 Ultimate-II inc Tape Adapter, JiffyDOS, 1541 Disk Drive, 1531 Datasette, Flyer Net Modem
 

Offline djos

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Re: 15Khz RGB YUV Video to VGA Converter Scaler For Amiga Atari Apple IIGS
« Reply #10 on: April 25, 2013, 03:56:55 AM »
Quote from: djos;732546
One problem I have encountered (not the adapters fault) is my 19" Mitsi LCD seems to have a broken DVI-D port which is most annoying - at first I thought my HDMI-DVI-D cable might be faulty but it worked fine on my Samsung LCD. I cant even force the blasted screen to manually switch to DVI-D in the OSD, it just falls back to VGA each time. very frustrating as this is my Amiga Screen! :(

Ok I found the problem, on all my screens that support HDCP over DVI-D the SCART-HDMI adapter works perfectly via DVI-D or HDMI and my only screen that doesnt support HDCP is the Mitsi and as a result the SCART-HDMI adapter doesnt work.

So before buying a second hand LCD Screen for your miggy, make sure the specs say it supports HDCP over DVI-D (most modern screens do these days).
« Last Edit: April 25, 2013, 04:01:27 AM by djos »
[SIGPIC][/SIGPIC] Amiga 1200 w/ ACA1220 16Mhz 128MB w/ RTC, 4GB CF-HDD, Roland MT-32 MIDI Synthesiser
Amiga 500 w/ KS2.05, 1Mb Chip-Ram, CF-IDE w/4MB Fast-Ram, FDD Boot Selector, HxC RevC Floppy emulator
Commodore 64 w/ 1541 Ultimate-II inc Tape Adapter, JiffyDOS, 1541 Disk Drive, 1531 Datasette, Flyer Net Modem
 

Offline djos

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Re: 15Khz RGB YUV Video to VGA Converter Scaler For Amiga Atari Apple IIGS
« Reply #11 on: April 25, 2013, 06:51:39 AM »
Quote from: gertsy;732874
Sounds like a good deal. Photos??  :)


I'll try to take some tonight on my 22" Samsung. :)
[SIGPIC][/SIGPIC] Amiga 1200 w/ ACA1220 16Mhz 128MB w/ RTC, 4GB CF-HDD, Roland MT-32 MIDI Synthesiser
Amiga 500 w/ KS2.05, 1Mb Chip-Ram, CF-IDE w/4MB Fast-Ram, FDD Boot Selector, HxC RevC Floppy emulator
Commodore 64 w/ 1541 Ultimate-II inc Tape Adapter, JiffyDOS, 1541 Disk Drive, 1531 Datasette, Flyer Net Modem
 

Offline djos

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Re: 15Khz RGB YUV Video to VGA Converter Scaler For Amiga Atari Apple IIGS
« Reply #12 on: April 25, 2013, 01:23:47 PM »
Ok so here's some Pics - a1200 @ 50hz to Samsung SyncMaster 225MS (set to 4:3 for correct image display) via SCART/RGB-HDMI Converter @ 720p50hz.

The pics are high res but were down sampled from 10MP as the files were huge - they still dont fully do the Picture Quality Justice! In some pics some colours are slightly washed out or the text not sharp, this is not how it looks in RL - especially the fine pattern from the WHDLoad screen, that is rendered really nicely in RL but hard to capture with a digital camera.

https://dl.dropboxusercontent.com/u/71121999/Amiga/Amiga%20SCART-HDMI%20Converter/P1020081.png

https://dl.dropboxusercontent.com/u/71121999/Amiga/Amiga%20SCART-HDMI%20Converter/P1020085.png

https://dl.dropboxusercontent.com/u/71121999/Amiga/Amiga%20SCART-HDMI%20Converter/P1020086.png

https://dl.dropboxusercontent.com/u/71121999/Amiga/Amiga%20SCART-HDMI%20Converter/P1020087.png

https://dl.dropboxusercontent.com/u/71121999/Amiga/Amiga%20SCART-HDMI%20Converter/P1020092.png

https://dl.dropboxusercontent.com/u/71121999/Amiga/Amiga%20SCART-HDMI%20Converter/P1020091.png

Im sure you'll all agree, there is nothing under $50USD that even comes close to this PQ! :cool:
« Last Edit: April 25, 2013, 01:34:13 PM by djos »
[SIGPIC][/SIGPIC] Amiga 1200 w/ ACA1220 16Mhz 128MB w/ RTC, 4GB CF-HDD, Roland MT-32 MIDI Synthesiser
Amiga 500 w/ KS2.05, 1Mb Chip-Ram, CF-IDE w/4MB Fast-Ram, FDD Boot Selector, HxC RevC Floppy emulator
Commodore 64 w/ 1541 Ultimate-II inc Tape Adapter, JiffyDOS, 1541 Disk Drive, 1531 Datasette, Flyer Net Modem
 

Offline djos

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Re: 15Khz RGB YUV Video to VGA Converter Scaler For Amiga Atari Apple IIGS
« Reply #13 on: April 27, 2013, 04:55:44 AM »
Good stuff! :)

Does your BenQ support Hdcp? If it has a hdmi port it will for certain but not all dvi-d only screens do. I finally figured out this is why it doesn't work with my Mitsi 19" LCD monitor.
[SIGPIC][/SIGPIC] Amiga 1200 w/ ACA1220 16Mhz 128MB w/ RTC, 4GB CF-HDD, Roland MT-32 MIDI Synthesiser
Amiga 500 w/ KS2.05, 1Mb Chip-Ram, CF-IDE w/4MB Fast-Ram, FDD Boot Selector, HxC RevC Floppy emulator
Commodore 64 w/ 1541 Ultimate-II inc Tape Adapter, JiffyDOS, 1541 Disk Drive, 1531 Datasette, Flyer Net Modem
 

Offline djos

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Re: 15Khz RGB YUV Video to VGA Converter Scaler For Amiga Atari Apple IIGS
« Reply #14 on: April 27, 2013, 05:29:25 AM »
Hdcp is part of the hdmi standard and optional for dvi-d, it's just the DRM the movie studios forced upon intel when making the hdmi standard.

So you'll be fine as the same chip that runs the hdmi port usually runs dvi-d port. :)
[SIGPIC][/SIGPIC] Amiga 1200 w/ ACA1220 16Mhz 128MB w/ RTC, 4GB CF-HDD, Roland MT-32 MIDI Synthesiser
Amiga 500 w/ KS2.05, 1Mb Chip-Ram, CF-IDE w/4MB Fast-Ram, FDD Boot Selector, HxC RevC Floppy emulator
Commodore 64 w/ 1541 Ultimate-II inc Tape Adapter, JiffyDOS, 1541 Disk Drive, 1531 Datasette, Flyer Net Modem