Search results

Since there aren't many decent photos of this box online, here you go! There's a lot going on compared to other generations of box designs, but it get's the job done sharing what this beast could do. I also thought it was neat that the blank expansion module came with little flip out PCMCIA...

@Action Retro i saw your video where you had some problems with the cable. Here’s the pinout of the original cable for the color pivot. Fun video btw :-)

I recapped a new-to-me backlit Portable and am using a Portable Battery Eliminator by @Androda. It will either display random garbage on the screen, just gray screen with backlight, sad Mac 00000014 / 0000CD38 with no backlight or nothing at all. My understanding is that 00000014 / 0000CD38...

I've been triaging a new-to-me Apple Network Server 700. Initially it'd boot okay but its hard drive was dead. It sat for a day while I found a boot CD for it and then just wouldn't power on. At best it'd have an initial blip of power but then power off in less than a second. I figured it was...

This is a mediocre display, but was common to pair with Performa's of its day. It's a Philips C3G9179 shadow mask CRT/Analog board with an Apple badged enclosure and 15-pin connector. It only operates at 640x480. The display I found worked okay, but its power button quickly broke. It'd press in...

I have a IIe whose disk 1 will light up and spin indefinitely whether a disk is inserted or not. From some googling it looks like it can commonly be due be an issue with the disk controller card or analog board on the drive itself. I swap tested with two other known working drives and a known...

I got an Apple IIe recently with no power. Here's a quick account of what was needed to get it working in case it's helpful to others. The system was loaded with a bunch of expansion cards. Those were all removed, but still no beep. The power LED on the MLB would sometimes pulse and the PSU...

There's not a lot of info on this card online, so here are some things I've learned about it that will hopefully be helpful to others. The OrangePC 290 is essentially a PC on a Nubus card, complete with a processor, memory, header for IO and a PCMCIA card cage on some configs for expansion...

Is there a pinout handy for the connector on the DOS Compatibility card found in the 6100 and other models? I found a post about it on 68kmla via google, but their site is down. From the google result it looks like there was a spreadsheet with the pinout somewhere.

I recently found a cheap (~$200) Metcal MX-5200 on eBay listed as powering on but otherwise untested. When powered up with good hand pieces connected it would display "Open Error" on the left channel. Opening it up revealed loose screws and nuts from the LCD panel, likely because someone tried...

While using a Duo MiniDock, the familiar fishy smell of bad capacitors started filling the air. I took apart the dock and was surprised to see 4 large electrolytic caps inside. I wasn't able to find these documented anywhere online so here you go... 2x 100uF/35V 2x 330uF/16V All are abut...

Inspired by @Mac84 's recent stream working on a battery bombed Quadra 650, I decided to try to repair one of mine. This board wasn't too bad, but the battery holder fell off, one of the battery diodes fell off and surrounding areas were rusted. The tops of the RAM pins were rusty too. Not just...

I have a couple of Apple IIe cards for Mac. One works fine. The other will crash after a few seconds running a simple basic loop like: 10 PRINT "Hello, Tinker Different" 20 GO TO 10 RUN It's been recapped, reflowed and ultrasonically cleaned. Have you experienced this issue before? Any advice...

The PowerBook 2400 uses tantalum caps on it's motherboard but has some atypical (for Apple) through-hole electrolytic caps on its power/IO board. Location Capacitance Voltage Rating Diameter Height Temp Rating C39 100uF 10V 10mm 6mm 105º C48 100uF 10V 10mm 6mm 105º C47 150uF 6.3V 10mm...

I recently recovered a dead MSO-X 3014A with a 1GHz upgrade from e-waste. On power up just the Ref, Math, Digital and Serial lights would turn on, but nothing else would happen. I posted over at the EEVBlog forums and those folks suspected the problem was due to corrupt NAND and could be...

I was lucky enough to find an AppleVision 850AV 20" display in nice condition. It does power up, but only kind of works at 1024x768 @ 60Hz. Most other resolutions or sync rates that it's supposed to support result in a distorted narrow raster. Hopefully it's just some electrolytic capacitors on...

I've had an Apple Thermal Transfer printer on the shelf waiting for repair for a while and decided to dive into it. It powered up but then something started smoking. Uhoh! It looks like at least one electrolytic capacitor (C27) severely leaked and may have damaged a nearby ROM. Before digging...

Is there a resource for common failure points and adjustment of the tray loader drives? I have one that isn't successfully reading discs. I assume the laser power pot needs adjusting and/or the drive needs a recap. It's pretty fiddly so was hoping to find a teardown and repair guide before...

With asking prices for these adapters being kind of absurd, I figured it might be helpful to consider reverse engineering one. It seems like a couple of special purpose ICs, a ROM and a surprising amount of passives. I don't think I'm up for the challenge of reverse engineering it, but figured...

I discharged a 128K Mac without a bleeder resistor and manage to damage it. At first I got a chime but no raster at all. Per Macintosh Repair & Upgrade Secrets, I replaced the LAG chip on the logic board and got raster lines but a dark screen. I then replaced U2 on the analog board, but the...