Spazmonkey Posted October 22, 2009 Share Posted October 22, 2009 I installed a composite mod circuit, and it worked very nicely. I then de-soldered the RF modulator, and I wasn't getting any picture. I thought it was odd so I put the RF modulator back, and then I could no longer power on the console. Any ideas? What should I suspect to be damaged? Quote Link to comment Share on other sites More sharing options...
Cebus Capucinis Posted October 22, 2009 Share Posted October 22, 2009 It's an Intellivision, so nothing of value was lost anyway . I'd say check your solder points, it's likely that there's a missing connection. Quote Link to comment Share on other sites More sharing options...
Spazmonkey Posted October 22, 2009 Author Share Posted October 22, 2009 It's an Intellivision, so nothing of value was lost anyway . I'd say check your solder points, it's likely that there's a missing connection. Missing from where? The console doesn't power on any more, and nothing is being shorted. I think it may be the 7805, or the red thing that looks like a 7805. I know the PSU is good. Well, it is value lost because I wanted to mod it a sell the thing it was just sitting in the closet. I should have quit while I was ahead...... Quote Link to comment Share on other sites More sharing options...
Cebus Capucinis Posted October 23, 2009 Share Posted October 23, 2009 Missing from where? The console doesn't power on any more, and nothing is being shorted. I think it may be the 7805, or the red thing that looks like a 7805. I know the PSU is good. Well, it is value lost because I wanted to mod it a sell the thing it was just sitting in the closet. I should have quit while I was ahead...... I was just joking about the value thing. The Inty gets a lot of bad press around here and people like to talk smack about it. What I was thinking was that perhaps a solder point didn't get the wire to touch the board enough to contact (called a contact point I believe, right?). First thing I always do when soldering after something doesn't test right is re-check the solder points to make sure the solder is actually forming a proper connection between component and board. Quote Link to comment Share on other sites More sharing options...
Spazmonkey Posted October 23, 2009 Author Share Posted October 23, 2009 Missing from where? The console doesn't power on any more, and nothing is being shorted. I think it may be the 7805, or the red thing that looks like a 7805. I know the PSU is good. Well, it is value lost because I wanted to mod it a sell the thing it was just sitting in the closet. I should have quit while I was ahead...... I was just joking about the value thing. The Inty gets a lot of bad press around here and people like to talk smack about it. What I was thinking was that perhaps a solder point didn't get the wire to touch the board enough to contact (called a contact point I believe, right?). First thing I always do when soldering after something doesn't test right is re-check the solder points to make sure the solder is actually forming a proper connection between component and board. Well, regardless of whether or not I have a cold joint, I'm saying that wouldn't hinder the console from turning on. I'm thinking something shorted, so I'm going to probe around the power board, likely a transistor or the 7805 went out, but who knows, which is why I asked. Quote Link to comment Share on other sites More sharing options...
Spazmonkey Posted October 23, 2009 Author Share Posted October 23, 2009 (edited) Missing from where? The console doesn't power on any more, and nothing is being shorted. I think it may be the 7805, or the red thing that looks like a 7805. I know the PSU is good. Well, it is value lost because I wanted to mod it a sell the thing it was just sitting in the closet. I should have quit while I was ahead...... I was just joking about the value thing. The Inty gets a lot of bad press around here and people like to talk smack about it. What I was thinking was that perhaps a solder point didn't get the wire to touch the board enough to contact (called a contact point I believe, right?). First thing I always do when soldering after something doesn't test right is re-check the solder points to make sure the solder is actually forming a proper connection between component and board. Well, regardless of whether or not I have a cold joint, I'm saying that wouldn't hinder the console from turning on. I'm thinking something shorted, so I'm going to probe around the power board, likely a transistor or the 7805 went out, but who knows, which is why I asked. It was a blown fuse, however I don't know what value to replace it with, I jumped the points and it worked, but I don't want to screw it up even more next time. I'm going to google the schematic, but if anyone knows, that would be great. EDIT: Found it, 2 amps. Going to get some from the shack later. Yay happy ending. Edited October 23, 2009 by Spazmonkey Quote Link to comment Share on other sites More sharing options...
Rik Posted October 26, 2009 Share Posted October 26, 2009 (edited) Hmm,I didn't even know the INTV 2 used a fuse or fuses,shows what I know about electronics,very good to know that, thanx!Is it the glass cylindrical type? Edited October 26, 2009 by Rik Quote Link to comment Share on other sites More sharing options...
Spazmonkey Posted October 26, 2009 Author Share Posted October 26, 2009 Hmm,I didn't even know the INTV 2 used a fuse or fuses,shows what I know about electronics,very good to know that, thanx!Is it the glass cylindrical type? No, like most video game consoles, it's a picofuse. They look very much like resistors, so that's maybe why you didn't notice it at first. Hell, I didn't notice it until I was tracing the voltage input of the console and stumbled across a boldly labeled "fuse" spot. Quote Link to comment Share on other sites More sharing options...
Rik Posted October 26, 2009 Share Posted October 26, 2009 Hmm,I didn't even know the INTV 2 used a fuse or fuses,shows what I know about electronics,very good to know that, thanx!Is it the glass cylindrical type? No, like most video game consoles, it's a picofuse. They look very much like resistors, so that's maybe why you didn't notice it at first. Hell, I didn't notice it until I was tracing the voltage input of the console and stumbled across a boldly labeled "fuse" spot. Aha!that explains it,so they have to be soldered in then right? Quote Link to comment Share on other sites More sharing options...
Spazmonkey Posted October 27, 2009 Author Share Posted October 27, 2009 Hmm,I didn't even know the INTV 2 used a fuse or fuses,shows what I know about electronics,very good to know that, thanx!Is it the glass cylindrical type? No, like most video game consoles, it's a picofuse. They look very much like resistors, so that's maybe why you didn't notice it at first. Hell, I didn't notice it until I was tracing the voltage input of the console and stumbled across a boldly labeled "fuse" spot. Aha!that explains it,so they have to be soldered in then right? Yeah, although it would be very easy to install the little holders for glass fuses on top of the solder pad. But if you go through all that trouble, how many times do you expect to blow the dang thing. Quote Link to comment Share on other sites More sharing options...
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