Recent content by campbellashe

@jmacz looking for the solutions for the IIfx front bezel for the second floppy bay. Do you have a 3D print that has the LED hole? Also do you have the print for the mounting inside the case that you used for your BlueSCSI or the like? You said something about a clear pipe to get the LED to...

Actually, I used hot air and worked well. Things I learned: A) I set the hot air to 360 and flow at 30, worked great at about 4-5 cm above chips. B) I first tried to use hot air for all the components, but the capacitors blew off… I therefore moved to soldering them by hand. I have a...

Well the journey to create 16 MB SIMMS was successful.... now at 128 MB in the IIfx. Used the above git and printed at JLCPCB with a stencil (make sure the 1.2 mm size is selected on the board options) -- worked great. Just used a credit card to spread the paste. Used the SAMSUNG...

Opened up the case again this morning. Easier fix -- the CN1 connection from the main board was not connected -- oops.... I'm going to say it became dislodged. Working great now with full passthrough and soft power. Thanks for all the help. Fully functional IIfx restored to its glory. Now...

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.

The DigiKey capacitor came and replaced the C1 with the polymer 35V cap. Works great.

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...

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...

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...

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...

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

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?

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...

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...

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...