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FYI, I used a usb-c power board and a buck converter and combined them to make a replacement power supply run fully off usb-c. These are the parts I used. https://www.amazon.com/D-FLIFE-Trigger-Charger-Support-Optical/dp/B0CPDRY45Q/ref=sr_1_4?sr=8-4 and...

I sure hope it works, because if it does it will help the portable people out a ton. So many have gotten parted out just because of the lcd failing and no hope of replacement. I started this project for when my (very nice lcd only like 8 pixels dead) starts failing (does what sideburns did) I...

Yikes! I've never heard of that! Maybe ask @techknight .

Good Job! I am working on a adaptor pcb right now for internal screen replacement. It will have a plug adaptor for internal plug (that's really small) too a regular 2.54 pin header. I am also modifying rezafoulidians design of video adaptor so that I can plug the internal video into that which...

My PT-10 brother label printer, there is like one short on it on youtube and no teardown guides. So I am waiting till it totally stops working to recap it. It even has a olympics sticker and all the original paperwork. It also came with 8 label reels.

I was able to fix my portable by reflowing the solder on the 2 ic's listed above. How are you trying to get it to boot, and what have you done to your portable?

I was able to fix it by being patient... Now it's fixed! I just had to wait longer. Another portable up and running! With a unknown amount of ram in the PDS card it came with!

Hello everyone, I done so much research on the macintosh portable I didn't think it was possible to have such a hard to find infomation machine. Alright straight to the problem. I finally got my portable to boot with 2 files. A custom bluescsi.ini, a macpack vhd. But finally after flowing some...

YEAH!

@tistan01 He's right. I bought a DVD player to practice soldering on before I did my mac. So it is a good idea.

Are you going to add the macintosh portable? That would be amazing!

I have the non backlit. Here is the chip circled in the photo you gave. Your's appear to be a different model of IC but they do the same thing. Just like my ram is a different manufacturer, but both are from Japan. Under your photo is a photo of mine. My portable's

You're welcome. I am just trying to help. :)

Doesn't mean nothings wrong. My macintosh portable boots to the qusetion mark too (even with a BLUESCSI connected). But somethings wrong. I pressed the interrupt button and it gave me errors. Some of the pin on a chip in the board have come loose and arn't connected to the board. Are there any...

Have you replaced the capacitors? Have you flowed the solder over them? If you do Flow the solder you can hear if the capacitor has leaked because the capacitor juice burns off depending on if your caps have leaked or not.

OH, If you find out what was wrong please let me know! I'm trying to find the same problem on mine. I discovered that the DS3691V ic was coming desoldered from the board. I am still waiting for flux and solder wick to show up so that I can fix it. If I find out what was wrong I'll let you know...