Solution for external Flicker fixer?

[djos]

I have the cable but the problem is the C64 does not output RGB signal, only Composite/S-Video, you can transfer this signal through scart but it's still Composite/S-Video, not RGB. It's fine if you want to connect your C64 to a TV, because it takes Composite signal, but it's different if you want to hook it up to a PC VGA monitor using the GBS scaler.

The question is can you somehow pass the Composite/S-Video signal through the GBS so it can be displayed on a PC VGA monitor? :huh:

Anyone?

The gbs82xx does not convert composite or svideo, it's designed for rgb conversion only.

The scart-hdmi converter does convert composite and svideo as well but I believe a 300ohm resistor needs to be applied to the chroma signal on pin 6 from a c64 to make it properly svideo compatible (voltage is too high).

 

[ghoul]

Thank you, that's what I thought thanks for confirming this

I have the cable but the problem is the C64 does not output RGB signal, only Composite/S-Video, you can transfer this signal through scart but it's still Composite/S-Video, not RGB. It's fine if you want to connect your C64 to a TV, because it takes Composite signal, but it's different if you want to hook it up to a PC VGA monitor using the GBS scaler.

The question is can you somehow pass the Composite/S-Video signal through the GBS so it can be displayed on a PC VGA monitor? :huh:

Anyone?

The gbs82xx does not convert composite or svideo, it's designed for rgb conversion only.

The scart-hdmi converter does convert composite and svideo as well but I believe a 300ohm resistor needs to be applied to the chroma signal on pin 6 from a c64 to make it properly svideo compatible (voltage is too high).

 

[djos]

No worries

 

[djos]

Good news folks, using a scart plug adapter it most definitely converts composite and s-video to Hdmi along with the audio.

I tested the s-video with my TiVo and got a superb picture, really quite impressive considering and it shows "scart SV" via the osd.

The c64 via composite also produced a surprisingly nice picture considering, like really really nice, was hard to believe it was composite, only the softness and bit of colour bleed gave it away but it was a much better pic than my Bravia TV produces when fed the same signal!

Bad news tho, using my very cheap c64 s-video cable it doesn't recognise the signal as s-video (shows "scart av" on the osd) and as a result produces a truly aweful aweful picture!

I have heard c64's need a resistor or something to make the signal properly s-video compliant so I'll have to look into that some more.

Btw I checked my S-Video cable and it does have the 300ohm resistor but my c64 still wont work properly with my SCART-HDMI Converter - seems Commodore video is just too far out of spec for it to recognize it properly.

c64 Composite does work tho and looks surprisingly good.

 

[aZtOcKdOg]

I've decided to use my tried and true method of downloading the manual and looking at the possible inputs / settings etc... narrowing the possibilities down to a few!

.aZtOcKdOg | .Key-J FReeLY

Just an FYI: The instruction manuals supplied with monitors are usually incorrect in 1 way or another. In my experience. I've been tricked many times before.

According to knowledgable GBS owners, its instruction manual is wrong too.

Good luck

Thanks for the heads up mate! Definitely worth noting that 'Don't ever believe what you read, until you know it to be fact' comes into play when researching technology.... especially displays!

Cheers

.aZtOcKdOg | .Key-J FReeLY

 

[sweetlilmre]

Holy mother of Darth Vader!

I received the cable from Oge and it makes an incredible difference.
Next up is to fit a custom port into the box so I don't have to use SCART.

-(e)

 

[djos]

Holy mother of Darth Vader!

I received the cable from Oge and it makes an incredible difference.
Next up is to fit a custom port into the box so I don't have to use SCART.

-(e)

any chance you could open it up and tell us what he's done differently from Ian Steadman's design?

https://dl.dropboxusercontent.com/u/71121999/Amiga/SCART_cable_with_LCD_Fix_v2.png

 

[sweetlilmre]

any chance you could open it up and tell us what he's done differently from Ian Steadman's design?

https://dl.dropboxusercontent.com/u/71121999/Amiga/SCART_cable_with_LCD_Fix_v2.png

I most certainly will. Might be a couple of days till I get the chance tho.
-(e)

 

[djos]

Much appreciated

 

[Phipscube]

Ok, I've decided to give this HDMI box a try and bought one. I'll report how it is with SLG SCART and 240p systems like Neo Geo AES and PC Engine. If it works well then this will become hands down the best universal Retro to HDMI solution under 50 Bucks!

 

[djos]

I've got mine setup on my 32" lcd TV now for playing my HxC equipped a500 and am loving it!

 

[thgill]

Ok, I've decided to give this HDMI box a try and bought one. I'll report how it is with SLG SCART and 240p systems like Neo Geo AES and PC Engine. If it works well then this will become hands down the best universal Retro to HDMI solution under 50 Bucks!

I am very interested in hearing your results with the SLG Scart and this device.

 

[jvdw007]

Here's a video comparison of the Indivision MK2, Scart, then GBS8220, all set using the same PAL Hires of 640x256 in 256 colours, using the same wallpaper.

http://youtu.be/7P9Aawyy_Og

First place goes to Indivision
Second to Scart
Third to GBS

I think GBS would be on par with Scart if the monitor I was using had a default resolution of 1024x768, but since it's 1600x1200, it scales and loses quality.

 

[djos]

The big problem with your comparison is you've used 3 different screens so there's no control over colour/brightness/pixel density/backlight etc.

I dont wish to be rude, but unless you use the same screen your test is completely useless.

 

[jvdw007]

The big problem with your comparison is you've used 3 different screens so there's no control over colour/brightness/pixel density/backlight etc.

I dont wish to be rude, but unless you use the same screen your test is completely useless.

I totally agree with you on that one.
The best way to test is a LCD TV that can take Scart, VGA and DVI/HDMI, allowing you to switch between each one or have 3 such LCD tv's next to each other for comparison

The point of the exercise though, was to show that the quality isn't too far off from anyone compared to the price differences in the products in question.

 

[djos]

I totally agree with you on that one.
The best way to test is a LCD TV that can take Scart, VGA and DVI/HDMI, allowing you to switch between each one or have 3 such LCD tv's next to each other for comparison

The point of the exercise though, was to show that the quality isn't too far off from anyone compared to the price differences in the products in question.

The only thing I could glean from that test was the SCART colours appeared better than the GBS and the Indivision but it was hard to know if that was caused by the screen having the colour setting turned up higher than the other two.

You dont need multiple screens to do the test, just setup your camera on a tripod so it's in the same place for every test and pause between powering off your amiga and swapping video connectivity types over. I'd be very surprised if one of those 3 screens didnt support the indy-vga/gbs-vga/scart connection types? (the SCART one surely has a VGA port on it too?)

 

[jvdw007]

I totally agree with you on that one.
The best way to test is a LCD TV that can take Scart, VGA and DVI/HDMI, allowing you to switch between each one or have 3 such LCD tv's next to each other for comparison

The point of the exercise though, was to show that the quality isn't too far off from anyone compared to the price differences in the products in question.

The only thing I could glean from that test was the SCART colours appeared better than the GBS and the Indivision but it was hard to know if that was caused by the screen having the colour setting turned up higher than the other two.

You dont need multiple screens to do the test, just setup your camera on a tripod so it's in the same place for every test and pause between powering off your amiga and swapping video connectivity types over. I'd be very surprised if one of those 3 screens didnt support the indy-vga/gbs-vga/scart connection types? (the SCART one surely has a VGA port on it too?)

Good point, but I'm not sure if the Indi when outputting via the DVI connector, will work if I had a DVI to VGA adapter?

Either way, the problem is scaling.
The GBS only does max 1024x768
The Indi could probably be made to work on that too.
But the TV itself uses 1280x720 as an "optimal" resolution, so by default, if you use 1024x768 on it, it will get scaled.

 

[djos]

I must admit all i know about the indy's is that the ECS model outputs VGA.

TBH scaling is going to have less of an effect than multiple screens on the test results.

 

[jvdw007]

I must admit all i know about the indy's is that the ECS model outputs VGA.

TBH scaling is going to have less of an effect than multiple screens on the test results.

Yeah
I'm going to do a test tonight using my LCD TV there with my tripod on my Canon EOS set up on it with manual focus and no flash.

The GBS outputs at 800x600 too, and since my Indi is set up to use 800x600 now (don't want to fiddle more and break configs), I think that's as good as it will get. Like you said, it's just a matter of using the same screen with a steady camera and no adjustments. Am I on Mythbusters now?

 

[djos]

Lol, MiggyBusters ahoy!