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After replacing a torn video ribbon cable, the eMate itself still failed to power on. I found the fuse at F1 was open. Patching it (temporarily) with a 0 Ohm resistor got it to power up without issue. Perhaps someone tried to insert a power adapter with the wrong polarity at some point. From...

The back of this monitor has two model numbers listed: 01-MIR1503A and T1015-AT, but it seems like this would have been marketed as the PixelView 1. The ad in MacWorld for this model says it would have shipped with an interface card. What card would that have been? The manual doesn't seem to be...

During a recent chat in the Tinker Different discord, someone asked for a post that acts as a Metcal buyers guide. I'll do my best to get you oriented with common models you should consider, their features, pros/cons, and tips when buying used. This won't be comprehensive and it'd be great to...

Just some post-repair notes in case it's helpful for others. I had a PowerBook 500 series AC adapter that had 16V for VBATT but ~2V for VMAIN when it should have been 16. I found the two 100uF caps noted below were way out of spec. The one next to the bulk caps was the ultimate culprit. The...

The SIMCheck series of testers can be very helpful in quickly and thoroughly testing RAM SIMMs/DIMMs, but is very expensive for even very old examples. Unfortunately the inventor of the device, David Y. Feinstein, passed away in 2019 and the company now seems to be defunct. Their website is...

Since I don't think this is documented on the site yet, here's the list of caps for both the logic and power supply boards on the StyleWriter 2400 printer. In my case they were all fine, so I ended up not replacing anything, but good to have the reference if something fails in the future. All...

Fo years I've been using a generic 10 liter ultrasonic cleaning tank I got from Amazon. It's been fine, but a little cramped for some boards and its build quality is mediocre. I'd heard of Crest ultrasonic cleaners via Louis Rossman's videos and they seemed to be very well made and performant. I...

I was recently repairing a backlit portable that does not have a hybrid board. In that area however was RP201 which had multiple rotten legs due to capacitor leakage nearby. Unfortunately, that SOIC resistor pack is custom to Apple, so there's no direct replacement. In my case, grinding back...

I recently got a PowerBook 3400 that would chime, then chirp and make some pretty crazy siren type sounds. The sound would go away and the screen would light up if I disconnected the hard drive. I assumed not enough power was getting to the HDD, so recapped the DC-board and MLB (just three caps)...

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...