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SE/30 No boot + checkerboard type video output
Posted by: ExplorerZ on 2023-11-13 15:47:09 This SE got battery bombed. Soaked the board in vinegar for 2 hours and in ipa for a while. Also scrubbed it with ipa and a toothbrush. During the cleaning, a rtc fell off. Attached photos. Any ideas on what to do? Beginner at this and looking for some advice. Using a standard SE with a working analog board as the SE/30s is messed up. View attachment 72152676312__E5A16416-B3FB-4402-961F-118C0F913768.mov
Posted by: Phipli on 2023-11-13 16:08:04 To help you search for information, you should be aware you have an SE/30 there, not an SE. They have similar names, but the main boards are a completely different machine architecturally. Extremely different. Screen looks like the video chips aren't working properly. Possibly low voltage or trace damage. The searching the forum for similar repairs would be a good starting point.
Posted by: Phipli on 2023-11-13 16:09:19 But that board is pretty rough. This repair is going to be harder than your IIci. I recommend sending it for repair with a professional.
Posted by: ExplorerZ on 2023-11-13 16:52:14 To help you search for information, you should be aware you have an SE/30 there, not an SE. They have similar names, but the main boards are a completely different machine architecturally. Extremely different. Screen looks like the video chips aren't working properly. Possibly low voltage or trace damage. The searching the forum for similar repairs would be a good starting point. Sorry, had some bad wording. Put the motherboard of the SE/30 inside my working SE to test it with a working analog board and power supply.
Posted by: ExplorerZ on 2023-11-13 17:28:47 Got some fresh solder and set my iron to 400c and reheated some chips. Reseated the vram. This is the new output on the screen.reheated the row of 7 chips in the 3rd photo and the cluster of 6 chips in the 2nd
Posted by: ExplorerZ on 2023-11-13 17:41:49 Got some fresh solder and set my iron to 400c and reheated some chips. Reseated the vram. This is the new output on the screen.View attachment 65149 View attachment 65151 View attachment 65152reheated the row of 7 chips in the 3rd photo and the cluster of 6 chips in the 2nd Reverted. Bridged a chip on accident
Posted by: joshc on 2023-11-14 00:07:50 Beginner at this and looking for some advice. The best advice I can give is, get something else that's easier to work on, after you've practiced your soldering skills and got the necessary equipment. You can't repair a board like this with just a soldering iron. You will likely need a hot air station and a desoldering gun (a proper one). reheated some chips The board isn't clean enough for this yet, I can see lots of residue...something, around all the pins. How has this been cleaned? Vinegar, a soap scrub, IPA is probably the minimum I would do. The ROM SIMM socket will likely need replacing - look at the pins, they are corroded. It's not easy to replace the socket without a vacuum pump desoldering gun - and cheap ones tend to be not very good. Look at how crusty, corroded and damaged the pins on these chips are: You need a hot air station and you would need to learn how to use it, in order to pull these chips off and replace them. The other obvious thing that needs doing is all the capacitors need replacing. Even after the repair work that I've highlighted, then you're left with all those damaged traces in the battery area - that will be pretty hard to fix without a lot of bodge wires, and even then, it may not work afterwards. You could use this board to work on, but personally I would recommend you learn/practice with something else first. This is speaking as someone who was in your position 20 years ago, I acquired a IIci and I tried to recap it and bodged it, and actually made it worse, because I didn't practice or spend the time to learn how to solder properly. If I could give my 20 year younger self some advice, it would be to practice, practice, practice on something other than that IIci !
Posted by: ExplorerZ on 2023-11-14 03:57:13 The best advice I can give is, get something else that's easier to work on, after you've practiced your soldering skills and got the necessary equipment. You can't repair a board like this with just a soldering iron. You will likely need a hot air station and a desoldering gun (a proper one). The board isn't clean enough for this yet, I can see lots of residue...something, around all the pins. View attachment 65164 How has this been cleaned? Vinegar, a soap scrub, IPA is probably the minimum I would do. The ROM SIMM socket will likely need replacing - look at the pins, they are corroded. It's not easy to replace the socket without a vacuum pump desoldering gun - and cheap ones tend to be not very good. View attachment 65165 Look at how crusty, corroded and damaged the pins on these chips are: View attachment 65166 You need a hot air station and you would need to learn how to use it, in order to pull these chips off and replace them. The other obvious thing that needs doing is all the capacitors need replacing. Even after the repair work that I've highlighted, then you're left with all those damaged traces in the battery area - that will be pretty hard to fix without a lot of bodge wires, and even then, it may not work afterwards. You could use this board to work on, but personally I would recommend you learn/practice with something else first. This is speaking as someone who was in your position 20 years ago, I acquired a IIci and I tried to recap it and bodged it, and actually made it worse, because I didn't practice or spend the time to learn how to solder properly. If I could give my 20 year younger self some advice, it would be to practice, practice, practice on something other than that IIci ! Yeah, the board is damaged pretty bad. I might just see if i can pay someone to help out with it. Even if i purchased the needed tools, i wouldn't know how to use them. Thank you for your advice, and il keep practicing. EDIT: soaked the board in vinegar for 2 hours and then a hour of IPA. for 20 minutes i scrubbed it with a toothbrush while it was in the IPA.
Posted by: imactheknife on 2023-11-14 04:41:51 The best advice I can give is, get something else that's easier to work on, after you've practiced your soldering skills and got the necessary equipment. You can't repair a board like this with just a soldering iron. You will likely need a hot air station and a desoldering gun (a proper one). The board isn't clean enough for this yet, I can see lots of residue...something, around all the pins. View attachment 65164 How has this been cleaned? Vinegar, a soap scrub, IPA is probably the minimum I would do. The ROM SIMM socket will likely need replacing - look at the pins, they are corroded. It's not easy to replace the socket without a vacuum pump desoldering gun - and cheap ones tend to be not very good. View attachment 65165 Look at how crusty, corroded and damaged the pins on these chips are: View attachment 65166 You need a hot air station and you would need to learn how to use it, in order to pull these chips off and replace them. The other obvious thing that needs doing is all the capacitors need replacing. Even after the repair work that I've highlighted, then you're left with all those damaged traces in the battery area - that will be pretty hard to fix without a lot of bodge wires, and even then, it may not work afterwards. You could use this board to work on, but personally I would recommend you learn/practice with something else first. This is speaking as someone who was in your position 20 years ago, I acquired a IIci and I tried to recap it and bodged it, and actually made it worse, because I didn't practice or spend the time to learn how to solder properly. If I could give my 20 year younger self some advice, it would be to practice, practice, practice on something other than that IIci ! i agree!. I have to admit my first real attempt at soldering was an se and an se/30 and I butchered them both. If i still had them now i could possibly fix them but ended up selling a whole lot of stuff when i moved cross country years back. Still makes me feel ill lol.. But yeah, once you have soldering down pat, you should look into a hot air station. I absolutely love these.
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