Recent content by Willj

I would like to provide free to the community an amazing diagnostics utility we have been working on for the 68K Macs including the II family. Currently this is for the IIci and IIsi but other machines are being added. The author has named this diagnostics utility DIAG68K (D68K). It is a ROM...

I am able to make the SIPP RAM as 4MB pieces but I am out of the pin header sockets at this time. I should have them by the end of October.

Here is the video link

FYI @JDW has and amazing video on the rom programmer and how to use the software along with how to make images to use. Even has loads of downloads that are amazing to use.

When I return home from my trip, I will open the store and purchase of a rom with socket is an available option for $5 more. I need to order pcbs and chips to make more roms and programmers. Note that it’s the DasBlikenRom that will be available as this is the low profile to fit pizza box...

I am working to repair a M5126 backlight Mac Portable. Recapped, repaired a few traces and I have the machine doing a good happy chime but when I connect an external (with power and correct INI file) or an internal bluescsi (portable version) it will still give me a good happy chime and then...

Thank you both for the support and kind words. I do enjoy the reloaded boards and for now, will continue. Even adding more of them. Keeps me challenged and I enjoy the end results.

Think this was more bogus capacitors as the markings on them were white (Vishay is normally black) and all were 50uF - 55uF. It is a v1.5 board so I did do the fix for the center memory jumper pin. No other issues with it now and its working solid. Enjoyed the diagnoses work on it and surely is...

I am the same person that runs CayMac Vintage and here is a great problem solving story for you all related to posts in this thread. I recently received the SE Reloaded board for @fred1212 discusses in this thread and privately shared that info with JDW for feedback. A few other people who had...

I am asking if anyone might have info on the transformer that is on the Macintosh Portable Backlight inverter board. See the pictures. I am hunting for an inverter or just the transformer to repair mine. Thanks for your help.

Steve, did you ever get this issue solved as I have a board doing the same thing???

A few years ago (almost 10 now) Downtown Doug Brown created the ROM Simm Programmer to allow programming of rom simms all at once in a socket. This became what today is the ROM-Inator II simms and others that are seen on many sites. Big Mess of Wires also made and sold the programmers for some...

@JDW thank you so much for the positive posts. Yes, the CayMac team is very proud of the meter and see it as a great tool to help. I found it very hard to measure voltages from the floppy port and having to do other work. We have updated the case and the extension adapter to have a better case...

Got the issue resolved. A wrong value resistor was on the board for the sound power source. Think this was my error in selecting a replacement for an out of stock item and selected the wrong value. Good thing, it is the only place this resistor is used.

@Kai Robinson Hope you can give me a pointer or direction to go. I have 2 classic reloaded boards completed and they are both booting but the audio is VERY low. When I press the rest button, the chime can be heard but its very low. Thanks for any input or guidance you can provide.