Tyler Hartman Posted May 20, 2021 Share Posted May 20, 2021 Having problems with my Intellivision, the picture is messed up. I replaced the Q1 and Q2 transistors, a few caps too. You reckon my RF Modulator is just completely shot? I tried on a color TV too, the picture is in black and white. I tried adjusting the pots on the RF, nothing. I also adjusted C2, no visible difference. I reseated all the dip chips, reflowed all the solder joints. What do you guys think? Quote Link to comment Share on other sites More sharing options...
1980gamer Posted May 20, 2021 Share Posted May 20, 2021 I have 2 intellivision II's that the video starts out pretty good but after a few minutes becomes snowy. Not as bad as this, but it jumps a bit also. I think thermal issues of course, but where are you sourcing the transistors and caps? Cold solder joints maybe also? Old age I guess! Quote Link to comment Share on other sites More sharing options...
mr_me Posted May 20, 2021 Share Posted May 20, 2021 What are we looking at; what cartridge are you testing? Quote Link to comment Share on other sites More sharing options...
Intymike Posted May 20, 2021 Share Posted May 20, 2021 3 hours ago, mr_me said: What are we looking at; what cartridge are you testing? That's Atlantis. Quote Link to comment Share on other sites More sharing options...
1980gamer Posted May 21, 2021 Share Posted May 21, 2021 I have tried multiple carts. I have an LTO... What Test Cart is best for the Intellivision II? Quote Link to comment Share on other sites More sharing options...
Duttroid Posted May 21, 2021 Share Posted May 21, 2021 I have what I believe is a similar problem on one of my INTV 1s. Does anyone think it could be the STIC? Quote Link to comment Share on other sites More sharing options...
+-^CrossBow^- Posted May 21, 2021 Share Posted May 21, 2021 59 minutes ago, 1980gamer said: I have tried multiple carts. I have an LTO... What Test Cart is best for the Intellivision II? v4 is the best test cart image as I believe all the others will throw errors that aren't actually errors due to the differences in the ICs used between the models. 1 Quote Link to comment Share on other sites More sharing options...
+-^CrossBow^- Posted May 21, 2021 Share Posted May 21, 2021 31 minutes ago, Duttroid said: I have what I believe is a similar problem on one of my INTV 1s. Does anyone think it could be the STIC? A STIC might do this, but usually that shows missing characters or colors appearing where they shouldn't and not something like this. You stated you adjusted C2 and that didn't change anything? Could indicate the main XTAL is bad? I actually recently brought an Intellivision model 1 back to life by replacing the crystal in it after having replaced out darn near everything else. Quote Link to comment Share on other sites More sharing options...
Duttroid Posted May 26, 2021 Share Posted May 26, 2021 Interesting @-^CrossBow^- , thanks for the tip. Perhaps I'm just tired or an idiot, but do many boards only have XTAL1? I've been looking at my early 1980 PCB and 1987 INTV3 PCB and am only finding XTAL1. @Tyler Hartman please keep us updated with what you've been trying and if there's any progress. Quote Link to comment Share on other sites More sharing options...
+-^CrossBow^- Posted May 26, 2021 Share Posted May 26, 2021 8 minutes ago, Duttroid said: Interesting @-^CrossBow^- , thanks for the tip. Perhaps I'm just tired or an idiot, but do many boards only have XTAL1? I've been looking at my early 1980 PCB and 1987 INTV3 PCB and am only finding XTAL1. @Tyler Hartman please keep us updated with what you've been trying and if there's any progress. They only have one crystal in them that I've found. It is always near C2 and U10 the color chip since adjusting C2 directly impacts the video output. Quote Link to comment Share on other sites More sharing options...
Duttroid Posted May 26, 2021 Share Posted May 26, 2021 Thanks for the quick response. Perhaps PAL systems have a second XTAL. Quote Link to comment Share on other sites More sharing options...
Tyler Hartman Posted May 29, 2021 Author Share Posted May 29, 2021 Sorry for my ignorance, but XTAL1 is the clock crystal? I believe I don't have an XTAL2 (NTSC Console). I'll try replacing it, and keep you guys updated! Would anyone mind finding an applicable replacement part from either ebay or digikey? I'm not all too experienced with buying raw components. -Thanks for time! Quote Link to comment Share on other sites More sharing options...
Duttroid Posted June 4, 2021 Share Posted June 4, 2021 Just saw this. @-^CrossBow^- thank you for the suggestion. I replaced the crystal in my INTV 1 that was having issues. While the issues were intermittent, I've had the console running for 5 hours and the picture looks better than ever. @Tyler Hartman https://www.ebay.com/itm/264792831922?_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D20160908105057%26meid%3D1e2a3a1737e9455f993766f4a7f4cb4d%26pid%3D100675%26rk%3D3%26rkt%3D15%26sd%3D264271964956%26itm%3D264792831922%26pmt%3D0%26noa%3D1%26pg%3D2380057%26brand%3DRCD&_trksid=p2380057.c100675.m4236&_trkparms=pageci%3A727c3fec-c546-11eb-8ef6-929793423970|parentrq%3Ad78fbe311790a0f2687f8e93ffe570ec|iid%3A1 This is what I used. 2 Quote Link to comment Share on other sites More sharing options...
Tyler Hartman Posted June 5, 2021 Author Share Posted June 5, 2021 @Duttroid I just bought the clock crystal, wish me luck! Thanks! Quote Link to comment Share on other sites More sharing options...
Duttroid Posted June 5, 2021 Share Posted June 5, 2021 Awesome. Please keep us updated. Quote Link to comment Share on other sites More sharing options...
Duttroid Posted June 19, 2021 Share Posted June 19, 2021 @Tyler Hartman any update? Quote Link to comment Share on other sites More sharing options...
Like us on Facebook
Follow us on Twitter
AtariAge on Instagram
Watch us on YouTube
Chat on Discord
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.