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    IIfx Power Supply Repair / Maintenance Questions

    Okay. The PSU works and the computer works great. But... using the PSU to power the monitor does not... Any suggestions on this problem? I'll open it back up and check my connections again.
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    Capacitor caught on fire in IIfx

    The DigiKey capacitor came and replaced the C1 with the polymer 35V cap. Works great.
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    IIfx Power Supply Repair / Maintenance Questions

    Full recap of the PSU completed. Mitigated the case rust with evaporrust and repainted it. Reassembled and working great; I was able to salvage the LED. Kept the fan -- after cleaning works great. Created a recap guide for the PSU as well (PDF included). Used fantastic link to Recap list...
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    IIfx Power Supply Repair / Maintenance Questions

    I've come upon a IIfx and am working on fixing it up. The PSU is the SONY CR-45S (699-0393). The PSU worked briefly -- before my C1 capacitor issue for which I'm waiting on my Digikey order -- but had a lot of rust on the grille and inside the case. I've taken it apart and I'm using...
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    Static sound issues for an SE/30 on startup linked to SCSI

    Mine is working, but I had to resolder many chips including UB12, UC12, UE12(ASC), UD12, UE10. I also had some problem traces in that same area. I also replaced the RP3 and RP2 — but this was because I screwed the top with my soldering iron and with removal destroyed them. I had a lot of cap...
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    G4 Cube Speaker Driver Paint Color?

    I finally got around to fix them. Did a pretty terrible job of the gluing with glue smeared all over the place. But.. they sound much better. Also 3D printed the 3 hole plastic grille cover on the speakers -- sent it away to JLCPCB to print it -- not optically pure but not bad. Used the 3D...
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    IIfx Memory

    I think the capacitors are standard decoupling/bypass capacitors with 0.1 uF values? Just checking. I wrote Hans Huebner to ask.
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    IIfx Memory

    On the V2 of the PCB of the Gerbers (if you plot and generate through KiCad) there are now small capacitors indicated above each chip....anyone know the value of these?
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    IIfx Memory

    Thanks @finkmac I've been able to create the Gerber files from the GitHub site above. Priced out the creation of the PCBs on JLCPCB for around $7.00 for 15, and the stencil for around $16.00. The slow shipping is about $18... would need to source the chips -- can get the KM41C16000CK chips...
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    IIfx Memory

    As I'm new to the IIfx, I'm trying to find memory for this computer as I only have a total of 8MB, what is the landscape like? It looks like given the unique 64 pin 70/80ns DIMM requirements, that they are hard to find. No real listings that I can easily find. Has any one made them? I did...
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    Capacitor caught on fire in IIfx

    Fortunately everything seems to trace out okay looking at the BOMARC schematics. Removed the burnt cap; and cleaned up the pads. Ordered a replacement polymer with higher voltage rating. Will update once I get the new caps in.... Any other surprises that I should be aware of for a new IIfx owner...
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    Capacitor caught on fire in IIfx

    Okay. I was a bit excited; just got a new (to me) IIfx; was told it booted and chimed. I had some work to I to clean it up, but wanted to ensure the chime myself. I put in the two batteries and plugged in the computer and a monitor. Pressed the power button and got a chime! But this was...
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    G4 Cube Speaker Driver Paint Color?

    This Dutch merchant has the right part; but unable to ship to US. I don't know of any US merchants that specify the part as this merchant does...
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    IIci boots twice

    I reset the PRAM and made my system .hda smaller (150 mb) and only loaded the system HDA. I also changed the parity to off on the bluescsi. So far so good.... Thanks for the direction.
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    G4 Cube Speaker Driver Paint Color?

    My surrounds arrived; they are rubber not foam. Got from: Ali-Express "2pcs 2"/2.5"/3"/3.5" Inch Speaker Foam Folded Edge Ring Woofer Repair Side Surround Circle Replacement Parts 50-90mm/1.97"-3.54" Wondering if I should buy the Foam ones instead. Here is a picture of the new rubber black...
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    IIci boots twice

    No just one system but three .hda files. It is annoying but not terrible. Just don’t know why.
  17. C

    IIci boots twice

    So you think the behavior is related to the Bluescsi with multiple .hda files / "partitions" ? Is it related to the size or numbering sequence?
  18. C

    IIci boots twice

    Here is the boot sequence. This is occurring after I have had the computer on for a while...so not related to cold boot.
  19. C

    IIci boots twice

    PRAM battery is working. On boot, the initial dialog from Rominator displays"32-bit". I'm running 7.5.5, don't have MODE32 or other INITs that I am aware of. I'll try again with a cold boot; looks like on restart now that the computer has been on for a while it is no longer booting twice. Very...
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    IIci boots twice

    To all, Wondering what the issue might be with a Iici that boots to the happy Mac icon, but then reboots going through the sequence again but working successfully the second time. I have the cache card, blue scsi running 7.5.5 and the Rominator II installed. Full recap and otherwise seems to be...
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