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Cropped CRT image in some modes

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Zebidee:

--- Quote from: DrChek on September 23, 2022, 12:45:05 am ---It certainly seems like there is some sort of enforced "window" that is only allowing 240 visible lines, and even if I set up a mode for more, those extra lines are never visible. I've been through all those adjustments a couple of times and I couldn't find any that allow the extra lines to become visible, but maybe I just haven't hit upon the right combination yet. I do know that any mode less than ~55.5Hz is a no go on this CRT.

--- End quote ---

They probably didn't even bother to allow enabling PAL via OSD/service mode!

There may be some kind of simple hack you could do with the jungle chip, like setting a pin high/low or something. Seems like more trouble than it would be worth though.


--- Quote ---Well, at least all of my horizontal games look great now! The GreenAntz definitely helped out tremendously with that. I'm probably gonna live with having to stretch my vertical games to 480 (which is what I was doing with all my games before the new setup). Not the end of the world. Maybe one day someone else who figured this out with these CRTs will come along with the secret.

--- End quote ---

If it is any consolation, your vertical games games would never look great on a horizontal CRT anyway. You really need to 'tate that toob for vertical games. Then, with the super resolutions, your vertical games will look great.

Where it will hurt more is for horizontal games that use more than 240 vertical lines, like Mortal Kombat (410x256@54.7hz), which you will probably have to run in 480i.

Zebidee:
Just reading operation manual, it says "Television System - American TV Standard/NTSC". So I guess that's all it does!

These particular Sonys are highly sought after, if posts on certain Facebook groups are to be believed.

Zebidee:
... and the schematic shows that they didn't even bother putting a PAL crystal on the PCB.

I've added a yellow+magenta arrow to show you where the PAL and NTSC oscillators input to the jungle chip. They only have the NTSC one there. The PAL inputs are just terminated to ground.

DrChek:
Well at least I can stop trying to chase that one down. I'm guessing most of the acclaim for these sets are with regard to classic NTSC consoles. The picture is spectacular in 240/480 modes.

At least I've learned a lot about working with CRTs in the process. 👍

abispac:
I had a trinitron with the same problem, so i ended up using 3240x240 with a bezel, look ok to be in a horizontal monitor, plus the bezel gives it a look like its a real vertical monitor.

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