Recent content by mari3311

I also solder directly onto the 1.2mm PCB. * I will explain using a sample 1.2mm PCB. First, apply a thick layer of solder to all pins. (In my case, it was 1.5mm thick.The PCB on the left is normal 1.2mm.) Next, use a solder wick to thin out 10 pins of solder from the 30-pin terminal at...

In my case, the electrolyte had isolated the legs of pins 28 and 29 of the SCSI chip (UI12) from the board pattern. I removed it, cleaned the board pattern and the IC legs, and then reattached it, which solved the problem. A chime sounded, and I could move the icon pointer on a grey screen, but...

All PRAM built-in batteries in PowerBooks from PB1400 to PBG4Ti operate at 6.0V, except for PB2400, PB3400, and the first PBG3 (Kanga), and the only difference is the number of battery cells used (2, 4, 6 pcs). The link is now broken, but 　　Tech Info Library 30580: 　"PowerBook G3 Series...

iCooked is only available on certain iBook G3 models and appears to be an extension for OSX. Also, the "software adjustable clock speed" in PowerLogix's explanation can be interpreted as a way to lower the clock in cooperation with the company's daughter card to extend battery life, so I don't...

The archived site won't show any photos, but it will provide instructions on how to set it up. https://web.archive.org/web/20040403215256/http://www.bekkoame.ne.jp/~t-imai/mainj2.html

Just to be on the safe side, please check the path to make sure that +12V and -12V are being properly supplied from the J12 connector to Q1 and Q2 respectively. A long time ago, the contact on pin 7 (-12V) of J12 of a friend's SE/30 was rotten inside, and although he could hear through...

The ROM chip I used for the port was a ROM chip from an original CPU daughter card.

I think your idea is correct. My proposal is to fill the gap in the yellow square part that is causing the loosening with JB Weld, and the only difference from your proposal of "a very thin brass shim" is the material. The second photo is a Wallstreet hinge, and as you can see, the aluminum...

What about stainless steel repair parts like these? https://buyee.jp/item/search/query/No.6420%20Powerbook%20G3?translationType=98

I think the jagged part of the Pismo hinge looks like this and can be pulled out. How about using a metal adhesive like JB Weld?

Very nice work with the smart power supply unit. I would like to hear your thoughts about the power supply unit you made, especially about the screen display using the Sweep power supply. By the way, I made an alternative power supply using the RT-85B, also made by MeanWell, but there is...

Next, in terms of the circuit, the reason why the SE/30's 12V power supply has a Di (SONY ERA81-004, Astec FE2A) between the two rails is that it clips (suppresses) the unregulated 12V for the disk drive to around 13.0V to match the regulated 12V for the sweep, so that the voltage doesn't become...

Hello (O’;’O). * I have also read https://68kmla.org/bb/index.php?threads/modern-psu-for-the-se-30.30945/ many times. I would like to express my thoughts on your question (2). Rail 1: Sweep cirduits 　　11.5-12.5V 1.25A A voltage regulator SI-3122V (12V, 2.0A) is used for both Sony (CR-44) and...

For sales purposes, I had a professional replace 9 Pismo PC750 400MHz CPU daughter cards with PPC7410 500MHz chips. Five of them were PC750s that were originally working normally, but the other four did not start even if the PRAM battery was removed, as mg.man said. My Pismo, which works fine...

If everyone's advice doesn't work, I wouldn't use a damaged pad. Fix the capacitor that will be placed in the area where the pad came off to the PCB with a glue gun. See schematic. Connect the + terminal to the UB10 or UB11 terminal using the lead wire. Use the lead wire to connect the -...