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Recent content by cannfoddr

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    Macintosh SE/30 logicboard recreation (thread revival)

    Kai, any plans to order more - I am in UK and now have 2 possible donor boards - just got a new one on the ‘finds’ thread. We could go 50:50 on something maybe?
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    Battery Damaged SE/30

    Went to look at a promising SE/30 here in the UK. On closer inspection there is what I imagine to be typical battery Damage to the logic board and case. It has got as far as the ROM socket: There are a bunch of RAM chips - 4xOKI and 4xMotorola(??): A quantum SCSI Drive: A Sony Floppy that...
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    Macintosh SE/30 logicboard recreation (thread revival)

    I am in the UK and am thinking about ordering some of these. Basic green boards with the bottom side populated from the BOM/Parts Placement. I have at least one donor board that is in pretty bad shape. 1. Is anyone else interested in one of these - looks like minimum order is 5? 2. Can anyone...
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    My next SE/30 Board

    Pretty much what I was thinking. I have a mouser cart with the F258's, UA-G8 and some resistor nets, and a couple of Zilog branded SCSI chips that I am working on finalising. I am having trouble tracking down something for RP9 - they seem to be out of stock with a MOQ of 2000! At this point...
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    My next SE/30 Board

    I picked up this SE/30 board on eBay and I think it’s going to be a challenge. There is quite a bit of visible green gunge to deal with. I have scrubbed down with vinegar, and IPA soak and some contact cleaner. Caps are off and there is some pad damage to repair. Folks in here have pointed...
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    Missing SE/30 SCSI Controller Chip

    Thanks for this - I didn't realise that 53C80 has different manufacturers. I will add one to my component order for this logic board repair
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    Missing SE/30 SCSI Controller Chip

    I picked up a 'spares' SE/30 logic board from ebay - OK I didnt look closely enough at the pictures, live end learn, and discovered once I started working on it aht the SCSI controller chip is GONE! Looking at another board I can see an NCR 53C80 p/n 609-3400257 a few google searches are not...
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    3D Print Replica HD 20 SC Enclosure?

    looks great - the parametric stuff is really cool
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    Oh dear another Mac - A G4 15" USB 2.0

    My first ever Mac was a G4 15", I think the USB 1.0 model.  I gifted it to my Niece to take to University here in the UK. I saw this as a £0.01 auction on eBay and ended up picking it up for the princely sum of £16.00.  The seller contacted me to say the keyboard had gone missing so the...
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    SE/30 where to start on Dead Screen

    Raster I have done all of that - see earlier in this thread, its definitely Logic Board.  The problem moves with the board and the 'good' board works in the 'bad' boards chassis.  Good board with boot either chassis hard disk.  I have swapped ram and rom around the two boards and even used s 3rd...
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    SE/30 where to start on Dead Screen

    I am being ultra careful with the clips, this board has an odd mix of plastic and metal clips on the sim slots. I don't think its the Semisamac (??) problem here.  I have tried all combinations of ram and rom I can thing of and always get the same issue.  The interesting thing is as a final...
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    SE/30 where to start on Dead Screen

    The diagonals are camera artefacts from my iPhone - the screen is just parallel lines in real life. Board has been fully recapped and cleaned thoroughly in IPA and dried. I have a Rominator that I can try and some new 16MB ram sticks. I have another SE/30 that runs fine without battery - I am...
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    SE/30 where to start on Dead Screen

    So I have some progress to report.  I checked all the continuity between UF8 -> UGC -> HSYNC Pin on the main board (Pin 11) and there is continuity everywhere there should be. So I went ahead and replaced UF8 and I now have VSYNC.  The picture fills the screen but is garbage:   The...
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    Recapping a second SE/30

    For the sound the recap and a good clean were all that was needed
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    SE/30 with 800K FDD

    Sorry I meant the FDHD that writes 1.44MB PC Floppies.....my bad
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