Search results

I was about to start a thread with much the same problem; backlit Portable, freshly recapped, floppy drive now detects a disk when there is not one there AND same floppy drive works perfectly in another Portable. A different drive has the same fault when tried in the first machine. I think a...

Nice write-up of your findings! Just a note about the fuse legs being ‘so long’ - those black sections are push-on pin connectors, hence the fuse is now socketed for easy replacement. The hard drive can be fixed by dropping a tiny amount of resin (such as UV-cured resin) into the slot where...

Yes, thank you for taking the time to update us! So to recap; the board that comes with an LED backlight kit isn’t usable because the brightness wasn’t sufficient or the control was inverted? I think that’s why you’ve made your own? Just curious whether a standard board can be used with a buck...

Yep, I had the same idea, draw away the solder with the solder wick, heat the whole thing with the SMD hot air tool, but I just couldn’t get all those pins moving at once, the holes in the logic board are small. I found it more difficult than removing, say, a 40-pin 6522 from an early Mac logic...

In the non-backlit Portables, I’ve done three where replacing the hybrid made a huge improvement to turning on (without doing the little dance with the buttons on the side) and to battery charging, battery gauge when running, etc. :) The first one in particular, I replaced all the capacitors and...

Fantastic quick work on the cover - thank you - I shall enjoy printing and testing as soon as I can :) The clips I was talking about are in https://www.thingiverse.com/thing:4368963 - second item - sorry for the confusion, I lose track of whose design is whose! They were posted by another...

Thank you - I think these are the clips I found on Thingiverse and they are excellent, I have printed them standing on their side so the strength/flexibility is optimised. May I humbly suggest that similar solid clips would work better than the fingers of the cover STL? I have difficulty...

Thanks for testing! Running hot reminds me of the cheap Li-ion battery-charging boards I bought, I suppose they would be operating on a similar principle. So it wasn’t going to achieve the limit of 16V/1A easily? I guess that will need a lower-rated power supply.

We all make mistakes from time to time in the excitement :) I wish you all the best with your project! I made a battery for my Powerbook 100 that uses six NiMH cells in series and a board for charging them (can‘t be charged in the machine, unfortunately, as that’s designed for 6V lead-acid)...

Hello Cheesestraws, I want to thank you for drawing my attention to what turned out to be the crucial, dead component for me; the 2N3904 :) As seems often the case with analog boards, the journey was not without missteps and red herrings… Previously, this Macintosh 512 had low voltage/screen...

I am really happy to report that a Sandisk Extreme III 2GB card (and IDE connector board) works with the ATDX adapter :) Apple SC Setup is happy to format it. My earlier problems with drives 4GB and 6GB not mounting (after formatting) were caused by using the System 7.1.1 Disk Tools disk; I got...

Having opened up a 540c with a working, original Sharp LQ94D041 display, I can now confirm that the Toshiba TFT cable works with the Sharp TFT display. The cables labelled ‘Sharp Color TFT’ and ‘Toshiba Color TFT’ can be used interchangeably. Cables for the ‘Color FSTN’ or ‘Gray FSTN’ display...

At last I found someone describing what seems to me a common fault - I have several Mac Plus machines doing this. With the brightness (contrast) knob under the screen turned to maximum, the display is good, no flickering. With the brightness turned to anything other than maximum, the screen...

Yes, the greyscale display should have a different film with retarder layer; but this really doesn’t seem to be available. If anyone finds a source, please let me know. With the standard film, the result will probably be a bluescale or purplescale display with yellow-ish background. I’ve ordered...

Nice, yes, I found the same, except only one of my original PRAM batteries charged in this way, the other two seem not to charge enough, even though I tried charging one on a bench power supply for a few hours. I guess I’ll have to order new VL-2330s after all. Interesting that you had a main...

Yup - but it’s just a vinegar smell, acetic acid released when the adhesive layer breaks down :) I don’t like vinaigrette salad dressing but if you do, I imagine it must smell delicious :D

I meant stuck at the inner end of head movement. Head should have moved outward, triggered the track-0 sensor, then moved inward to un-trigger the sensor, then stopped. It hasn’t stopped, seemingly because the sensor is still triggered. Definitely try cleaning the sensor first before moving it...

Do you have a 400K drive or an 800K drive? Now I’ve seen the video - it appears to be the 800K drive, and the problem I’m familiar with, except yours is hitting the head is at the outer end of its travel. First, use a toothbrush or similar to make sure there’s no dust blocking the sensor. It...

I certainly tried every solvent I could think of, including brake cleaner and paint thinners. Only alcohol worked (either methylated spirits or isopropyl alcohol), softening it a bit so a blade could remove it. The ribbons get damaged more from the height difference between the LCD and the thin...

Lol - it did have better speakers than everything else, and a swappable floppy/CD drive. It was a Japanese-made laptop, so close-fitting and solid with lots of metal bits and a myriad of different-length screws. Worst part was the 3x NiCd cells for CMOS/parameter RAM; they leaked. I had to...