Search results

They were a toss-in when I bought a bunch of Macs from someone clearing out their garage in 2016. Yeah they sold empty cases and full system bundles with a display per old ads.

In 2016 I got a couple of MicroMac SE prototypes and haven't done anything with them since. I've started to dig into them and am trying to get them to display video on any external display. I don't own a generic Full Page Display which is what they were likely meant to connect to. I'll use this...

This is very clever. Thanks for the tips. If you have to do a bunch, I could see making a jig out of the rod with a notch on either end to hold the cable so you don't have to use the rubber bands. Did the wood rods you used warp or swell from the water? If so I wonder if acrylic or aluminum...

@jdmcs where did you read these models only support sync on green? The IIci Technical Procedures doc is a little vague but seems to indicate it might support different types of sync signals. I didn't see anything in there stating that only sync on green is supported, but maybe that's implied?

.511mF (millifarad) = 511uF (microfarad) All capacitors have a tolerance. These are probably 20%. For a 470uF capacitor that'd mean 376uF—564uF would be considered OK. Capacitance isn't the only measure of capacitor health though. Ideally you'd be able to check ESR, dissipation factor etc...

The Hakko one you linked to does not seem worth $100 IMO. This Kotto extractor is the dinky one I was using before. It seems comparable to the Hakko, but is half the price.

Love the microscope solution. Very creative and super nice to have the ability to shove it out of the way. The boom stand means it's always in the way of something. The fume extractor solution seems better than a single desktop extractor in that size, but it'd be good to know what should be...

The PowerBook 5300c has three circuit boards with electrolytic capacitors. The locations and specs may vary in other models such as the 5300ce and 5300cs. Location(s) Capacitance Voltage Pads (edge to edge) SMD Size Recommendation Notes INVERTER BOARD C3 10uF 50V 9.5mm C (6mm L)...

Sorry just realized I gave you that same advice earlier. Normal operation is that the fan will run if the MLB is not installed. Did you recap and clean the logic board too? If you just get a brief click when it's installed you might have an issue with the EGRET chip which manages ADB. You might...

One more update to this project. I spliced the audio cables, which got the speakers working, but they were very quiet. I read somewhere else online that the amplifier IC in powered PC speakers and wear out over time and lead to this symptom. I thought that sounded weird, but worth a shot. Before...

It looks like you only ordered 1x SN74F253 but there are 4 on the board.

I was off by one silkscreen looking at your photo. UA8, UB8, UC8,UD8 are SN74F253 UE8 is SN74LS166 UF8, UG8 are SN74LS393

Also, this trace is looking questionable. Refer to @Branchus 's videos for how to scrape it down, check and repair it if needed. Lastly, the ROMinator tends to not make good contact with the pins on the SE/30. I wouldn't rely on testing with it unless you have an ATX extension to test with the...

I think the fact that you're seeing a garbled flashing ? is another indicator that your issue may just be with the muxes. Yes, remove with hot air, clean underneath with IPA, scrub the pads with solder wick/fresh solder and reinstall (using lots of flux). If that doesn't help you can find...

Swapping it into the SE is not going to help. A few things to try: Try one bank of RAM at a time in bank A. Clean the contacts on the ROM. But most likely this is due to a broken trace to/from the ROM or RAM or bad / dirty video mux. UE8 (74F253) is a common failure point due to its proximity to...

I've corrected some stuff on the top enclosure and created the bottom enclosure model. I'll try to make a test print in the next day or so.

Top enclosure draft done. Will hopefully get the bottom done later today and will attempt a print shortly after.

Well, conveniently, someone recently did all of the hard work. Yay! I'll work on an enclosure.

I recently got a TechStep working and of course am interested in getting the full set of ROMs. They're quite hard to find, so it might make more sense to just recreate them. The enclosure geometry is a bit complicated but should be fine to print in resin. The PCB is quite simple too. It consists...

My ROM B has generic SCSI tests on it.