Geffersan

Lol, i wish i'd read this thread last week. Installed an s-video mod board, used my Harmony cart to load up the colour test screen and set it. Checked the test screen again after playing a game and its way of, i mean way of. Took we a while to realise that the colour changes dramatically after warmup. As per prev posts, set the colour after a minimum of 10-15 mins.

Just to update this, i have since received the mod so hopefully Longhorn is now uptodate. Awesome picture quality on S-video btw

If its an original rubber key system and your t.v will except 50hz pal via composite try this:composite mod

I've only seen one television that can correctly decode the ntsc colour signal via rf. However nearly every crt from the 90's onwards can via composite, s-video and rgb I have my ntsc 2600 modded for S-video and the tv displays it just fine. My tv model is a Sony KV29 F1U btw.

If you leave out the tuning problems of some modern t.v's out there are other factors. My understanding is that many developers took advantage of analogue t.vs interlace capabilities to display more sprites. Modern t.vs have to de-interlace and upscale the signal before it can be displayed in progressive mode. Although some chipsets do this better than others you still get upscaling/de-interlacing artifacts and disappearing sprites. This won't affect all games though.(maybe some developer could explain this better) I use a crt as this is the technology that the system was designed for,ie you see what the programmer intended you to see, colour etc Modern t.vs also lack the beautiful phosphor glow that can bring simple graphics to life, check out the link below. The Yar I'm not knocking anyone who uses lcd/plasma but its not for me.

Yeah, i've ordered one now. Really i was just trying to avoid signing up with google checkout. I hate giving all my details to a company for the sake of one purchase. Especially when you see the amount of hacks that have happened recently. Thanks though.

There were, i bought one recently. (see heavy sixer serial thread) Regarding the black and white issue, i've seen this on lots of 2600's. There's a colour potentiometer that most likely needs a small adjustment. From my experience this setting seems to drift over the years, maybe because various component values are now a little out. It does require you to spill the guts of the console though and the 6 switchers are hardest to access. If you have confidence it might be worth a shot. Btw guys, when they say the original systems were made in Sunnyvale do they mean assembled? Or were all the parts etc manufactured there?

Finally got a Pal Heavy Six. Cherry Leisure sticker/power supply etc although the box doesn't have a chess piece on it. (see pal heavy sixer thread) Picture and serial below. Also noticed another has turned up on ebay as of today(04/07/2011), serial 76188. Amazing considering i've to wait over a year to even see one.

Bump, i have a new want

Don't order from the LHE directly, i placed my order last November and i'm still waiting!

Nice, at least it was only the power supply.

If you have a harmony cartridge you want to sell drop me a pm. Thanks.

Sounds like a power supply issue to me, its just very unlikely that your 2 fully working atari's would fail in the same week. I've had very similar problems, a C64 that would work and then fail with randomly generated colored characters on screen and a snes that would only display a black picture. The C64 power supply checked out fine when multimetered showing 5v dc and 9v ac but was faulty, this was confirmed by using a working power supply. The snes power supply showed 9v dc (this changed to 14v dc after being fixed) but the system worked immediately with a different power supply. In both cases the power supply filter capacitor had failed and the resulting voltage ripple was causing serious problems, they were both fine after i replaced the capacitor. (this involved cracking open the power supply so you might just want to buy a new one) Hopefully your power supply hasn't overvolted and fried some of your ram chips. I could be wrong of course but a new power supply is where i would start, get a regulated multi-voltage that can output 9v at least 500ma, the tip on the power connecter should be set to + Good luck.

I tested two french 7800 with scart output, with four different TVs.First TV has only one composite scart (no rgb), the second has one rgb scart and one composite scart, the third has one rgb scart, the fourth has two rgb scarts. These 7800s work fine on each TV and on each scart. The difference between composite quality and rgb quality is small (visible but small). I don't suppose you've tried connecting the 7800 to a PAL TV or a Secam TV in PAL mode? I bought a French 7800 a while ago and found that 7800 games only appear in grey and light green??? I got a french scart 7800 and did a bit of messing around inside, seems to be two pots for colour calibration, one for the 2600 and on for the 7800. There was also two other adjusters for fine tuning, again 2600 and 7800. Your issue can most likely be resolved via the 7800 colour pot.

I've made scart cables for nearly every system i own, finding the documentation hasn't really been a problem. I buy fully wired scart cables (5 meters) for £3.00 and buy the scart head and others connecters from ebay. With a bit of soldering it probably costs about £5-£6 a cable. If you need a hand with anything let me know.