HunterZero Posted March 19, 2016 Share Posted March 19, 2016 Anyone have a busted PAL model Intellivision for parts with a spare STIC chip they are willing to part with? I have a fairly low serial model 3668 in need of one. Thanks! - James 1 Quote Link to comment Share on other sites More sharing options...
HunterZero Posted March 19, 2016 Author Share Posted March 19, 2016 I am also in need of the number grid for a controller... Please? Quote Link to comment Share on other sites More sharing options...
GroovyBee Posted March 19, 2016 Share Posted March 19, 2016 I have several dead Intys that are in the "to be fixed someday" pile. I'm probably going to Frankenstein some of them together to get one or two working ones (they have different faults). It'll be at least summer before I get around to looking at them tho. You are welcome to any spares after that. 1 Quote Link to comment Share on other sites More sharing options...
mr_me Posted March 19, 2016 Share Posted March 19, 2016 Anyone have a busted PAL model Intellivision for parts with a spare STIC chip they are willing to part with? I have a fairly low serial model 3668 in need of one. Thanks! - James 20160319_214212.jpg Are the STIC chips not all the same from any Intellivision or Intellivision II? 1 Quote Link to comment Share on other sites More sharing options...
Intymike Posted March 19, 2016 Share Posted March 19, 2016 Are the STIC chips not all the same from any Intellivision or Intellivision II? I think in the Inty I the STIC is the same for NTSC and PAL. That's why the screen is much smaller on PAL TV's. A PAL STIC was planed for the international release of the Inty II. But that never happened. Quote Link to comment Share on other sites More sharing options...
HunterZero Posted March 20, 2016 Author Share Posted March 20, 2016 PAL STIC is definitely different from the NTSC STIC. They have different part numbers. PAL STIC part number is AY-3-8900. NTSC STIC is AY-3-8900-1. They work at different clock/multipliers for the different videosignal rates. I tried an NTSC part in it since the pinouts are the same, and the system plays and I get an RF signal with audio but scrambled video. The audio seemed to be sped up a touch. So I know it works and it's the STIC causing the black screen. The original STIC in it had a couple of holes underneath so I think the magic smoke has gone... Tempted to do a composite mod on it and see what signal I get out of it. - HZ Quote Link to comment Share on other sites More sharing options...
HunterZero Posted March 20, 2016 Author Share Posted March 20, 2016 I have several dead Intys that are in the "to be fixed someday" pile. I'm probably going to Frankenstein some of them together to get one or two working ones (they have different faults). It'll be at least summer before I get around to looking at them tho. You are welcome to any spares after that. Thanks GroovyBee I am in no rush. After a STIC marked AY-3-8900 without the "-1" at the end. Quote Link to comment Share on other sites More sharing options...
HunterZero Posted March 20, 2016 Author Share Posted March 20, 2016 This early model Intellivision is interesting because it's the only AUS model 3668 I have seen without the colour PROM replacing daughter board. Quote Link to comment Share on other sites More sharing options...
HunterZero Posted March 20, 2016 Author Share Posted March 20, 2016 Are the STIC chips not all the same from any Intellivision or Intellivision II? I don't think there was a PAL Intellivision II? If there was, I assume I could cannibalise the STIC. Quote Link to comment Share on other sites More sharing options...
HunterZero Posted March 20, 2016 Author Share Posted March 20, 2016 Actually now I think of it I think I know what's happened. Early AUS 3668 Intys should have the daughter board. So someone has swapped the (presumably) working logic board (presumably daughter board version) and possibly controllers from this Intellivision into a later (presumably cosmetically nicer) case and dumped the nonworking later revision board into this... Quote Link to comment Share on other sites More sharing options...
Intymike Posted March 20, 2016 Share Posted March 20, 2016 I don't think there was a PAL Intellivision II? If there was, I assume I could cannibalise the STIC. What STICks in the brazilian Inty II? Brazil has a PAL system, but with special frequencies. Quote Link to comment Share on other sites More sharing options...
stc2009 Posted March 20, 2016 Share Posted March 20, 2016 I haveto check but I think I have an Inty 1 with just a bum power switch I could send Quote Link to comment Share on other sites More sharing options...
HunterZero Posted March 20, 2016 Author Share Posted March 20, 2016 What STICks in the brazilian Inty II? Brazil has a PAL system, but with special frequencies. Brazil used a system called PAL-M that is very similar to NTSC except for colour generation. I would guess a PAL-M Intellivision would have an "NTSC" AY-3-8900-1 STIC and PAL M compatible colour PROM and RF modulator. Crack it open and see. Quote Link to comment Share on other sites More sharing options...
HunterZero Posted March 20, 2016 Author Share Posted March 20, 2016 I haveto check but I think I have an Inty 1 with just a bum power switch I could send I would then be tempted to just fix the power switch Quote Link to comment Share on other sites More sharing options...
HunterZero Posted March 21, 2016 Author Share Posted March 21, 2016 Here is the datasheet for the STIC by the way... Note AY-3-8900 is for 625 lines CCIR (System B/G or PAL B/G), and the AY-3-8900-1 for 525 lines NTSC. http://console5.com/techwiki/images/a/ad/AY-3-8900.pdf Quote Link to comment Share on other sites More sharing options...
intvnut Posted March 21, 2016 Share Posted March 21, 2016 (edited) I think in the Inty I the STIC is the same for NTSC and PAL. That's why the screen is much smaller on PAL TV's. A PAL STIC was planed for the international release of the Inty II. But that never happened. As others have noted, the two STICs are different. The PAL STIC shows a smaller screen because it doesn't stretch the screen vertically to fill it. Rather, both versions generate 192 lines of active display. The PAL chip does this across 312 scan lines per field instead of 262, which is why the PAL display has so much dead space at the top/bottom of the screen. The planned (but never released so far as we know) PAL upgrade STIC would likely have stretched the display vertically by generating more than 192 lines of video (probably by repeating some of them). I think it's fair to say the two versions share much of the same core logic and state machines, but the PAL version has different frame-level timings. To make the most of PAL, they'd need to rework more of the core logic, and that never happened. Edited March 21, 2016 by intvnut 2 Quote Link to comment Share on other sites More sharing options...
HunterZero Posted April 18, 2016 Author Share Posted April 18, 2016 *BUMP* Still in need of a GI AY-3-8900 CCIR/PAL STIC (not an AY-3-8900-1 or 1A NTSC STIC), and the gold number pad overlay for a hand controller if anyone can help... TIA, - J Quote Link to comment Share on other sites More sharing options...
JohnPCAE Posted April 25, 2016 Share Posted April 25, 2016 What I would give for some die shots of a STIC. I've been cleaning up my SP0256 die shot and I'm almost finished, but it would be awesome if we could create drop-in replacements for the STIC... Quote Link to comment Share on other sites More sharing options...
HunterZero Posted April 25, 2016 Author Share Posted April 25, 2016 Drop in replacements for all the GI chips would be good. The SRAM, STIC and PSG chips all are points of failure. Do you have the ability to rip into a DIP and take a die shot? Quote Link to comment Share on other sites More sharing options...
JohnPCAE Posted April 25, 2016 Share Posted April 25, 2016 I certainly don't... Quote Link to comment Share on other sites More sharing options...
HunterZero Posted July 8, 2016 Author Share Posted July 8, 2016 I have several dead Intys that are in the "to be fixed someday" pile. I'm probably going to Frankenstein some of them together to get one or two working ones (they have different faults). It'll be at least summer before I get around to looking at them tho. You are welcome to any spares after that. Any PAL units among this lot? Still in need... I did have the idea of putting an NTSC STIC in it using PAL colour circuitry and making it a PAL60 console - but what else do I need to swap? Already verified the console runs with an NTSC STIC but picture is scrambled and out of synch. Quote Link to comment Share on other sites More sharing options...
HunterZero Posted July 8, 2016 Author Share Posted July 8, 2016 Benefit of this would hopefully be the ability to play Dreadnought Factor Quote Link to comment Share on other sites More sharing options...
GroovyBee Posted July 8, 2016 Share Posted July 8, 2016 Any PAL units among this lot? Still in need... All my 2609s are PAL units. I still haven't managed to look through them yet. Quote Link to comment Share on other sites More sharing options...
Intymike Posted July 8, 2016 Share Posted July 8, 2016 All my 2609s are PAL units. I still haven't managed to look through them yet. Are you sure? The 2609 is the US version and therefore should be NTSC. The UK version is 1591, the german 5370, the french 5156 and there is at least a italian Inty too. Quote Link to comment Share on other sites More sharing options...
GroovyBee Posted July 8, 2016 Share Posted July 8, 2016 Are you sure? The 2609 is the US version and therefore should be NTSC. The UK version is 1591, the german 5370, the french 5156 and there is at least a italian Inty too. My mistake, you are correct. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.