firestorm

NTSC

What about this guys? Are you not curious how to get these colors on NTSC screen? Not at all? Color 6 printing error

Please help mi someone to examine this

@Faicuai Read my posts from this topic please, I found that Atari had 2 color settings for games on NTSC. I'm not taking away blue shield from Star Raiders that for sure How about color description from basic manuals? How to program game witch has similar loking colors NTSC to PAL and PAL to NTSC?

Thank you for your input and for your advise (C 54) how to mod video output for S-video witch I found very useful Your colorbars test from SALT looks like mine. Find above in my previous post fragment of Atari 400/800 Field Service Manual and try adjust Phase/Color Balance to get Golden Rod color from manual. Your Atari outputs green bars at bottom so it is OK. What I'm saying is Atari used to color palettes for NTSC. Look at my picture of Jungle Hunt, do you like brown tree trunk? It won't harm your Atari if you change setting on TV, just experiment a bit, please.

A Sony PVM-14L4 High Resolution Broadcasting Monitor witch I highly recommend for retro consoles and computers. https://cvp.com/pdf/sony_pvm-14_lseries_brch.pdf

The point is: Why Atari used 2 color palettes for NTSC? Why Activision was using palette described in Atari Field Service Manual witch required set Phase/Color Balance to minus something? Why people from NTSC world have to play Pitfall with green logs?

No It won't work with PAL but NTSC can have PAL look.

Now you getting me What I found is that for some reason Atari was using two color sets for games on NTSC. Give you example, Pole Position looks nice on Phase/Color Balance 0 and for Pal it has color correction in program. But just look... Green gold? Interesting, hmm... Oh it's better... and so on 1 Games designed on NTSC with minus something adjustmet don't need color correction for PAL in program. Many publishers like Activision, Datasoft or Synapse, where using only this minus setting witch is described in Atari 400/800 Field Service Manual. 2 Games designed on PAL don't need color adjustments for NTSC just TV should be set for minus something Phase/Color Balance Assembloids XE on NTSC Phase -40 Assembloids XE on NTSC Phase 0 Assembloids XE on PAL

OK, have you got River Raid? Can you adjust it by using color balance to look like on PAL? Look I started from adjusting my NTSC Atari 800XL like written in Atari 400/800 Field Service Manual and it is starting point. After that you should have results like mine. You can have Caverns of Mars red when your color balance is on 0 and pink one like PAL when it is on minus something, right?

@BioFreeze Have you tried to adjust Phase setting on your TV for NTSC?

And surprise, Pole Position NTSC Phase 0 NTSC Phase -40 PAL

NTSC Phase 0 NTSC Phase -40 PAL

NTSC Phase 0 NTSC Phase -40 PAL

And is time for comparison well known games NTSC Phase 0 NTSC Phase -40 PAL

Missing from my first post, page from Atari 400/800 Field Service Manual

@BioFreeze Thank you for your pictures I know is hard to take good one. I'm using SLR camera set for White Balance 6500K to match monitor's setting illuminant D65. Using shutter speed 1/8s and slightly defocusing to avoid moire Have you got Phase setting on your TV? Try to play with it. You have to wait about 15 minutes before taking picture to let computer warm up. I noticed that color is changing. My monitor got beam current feedback circuit witch eliminates white balance drift (see the link). https://cvp.com/pdf/sony_pvm-14_lseries_brch.pdf

Two weeks ago I bought NTSC Atari 800XL on ebay. I was always interested how those games I loved plays and looks on NTSC. I managed to find a monitor witch can display NTSC. Very cheaply for 45£ I acquired Sony PVN-14L4 Broadcast Monitor. Wow, what a resolution, colors fidelity, linearity. https://cvp.com/pdf/sony_pvm-14_lseries_brch.pdf Next thing I'v done was to adjust color pot on my NTSC Atari 800XL. I followed Atari 400/800 Field Service Manual. Using Colorbars option from Salt 2.05 cartrige you have to make sure that "the color bars above and and below the reference bar identical" Picture in manual points that bar 15 and one below reference bar (thin grey line) has to be same color. I found that you have to wait about 15 minutest to let computer warm up before you perform adjustment. OK, but there is small problem because Atari 400/800 Field Service Manual says "The color bars directly above and below the reference bar (thin grey line) should be the same color (golden rod)" What to do? I have tried Phase adjustment in my monitor and come out with this. But wait a minute, it looks like something I'm familiar with... A PAL to be continued... Salt 2.04.xex SALT205.rom.bin