Recent content by captaineos

Thank you for sharing and I especially like the authentic workflow

I have the same fault, but assumed it was my logic board partly to blame I have recapped the video card but yes identical symptoms and no idea why

Problem solved by reading the USA schematics and replacing the respective zener (CR19 designation on 240v model). It was leaky but testing fine in diode mode

Without a doubt it's the flyback transformer. Honestly

Hi everyone International board Mac Plus that boots but has slight screen wobble and -12v rail high leading to sound issues. If sound is being produced e.g in a game it's like the speaker is at 50% volume then 100% volume every second or so. I have done extensive work on it including but not...

Hi everyone Grateful to have 68KMLA going strong. Jeremy from Australia Am doing a comprehensive service of my colour classics, re-capping the power supplies and enjoying it. I have put together my own cap list, resistor upgrades and taken notes. One thing I can't work out is where I can...

No idea but cool story. Honestly I'm glad to hear people still finding stuff like this. I do have repair manuals for this on my public repo https://jbretro.wordpress.com/the-latest-google-drive-link/ Open the Gdrive link and search laserwriter

Well I've just bought a Quadra 950 that turns on for a second and then each second it drops power and fans spin down, next second up, then down.  Poor PSU must be suffering in there so I killed power quickly and started searching online.  And here we are!  Reading your journey from the first...

Subject: Power Macintosh 7300 stops working after tantalum recap Hi Everyone I decided to replace the electrolytic caps on my favourite Power Macintosh 7300 computer and unfortunately it hasn’t turned on since!  I’m writing for help on what to check or do, as I exhausted all checks that I can...

Please note there is a critical typo in the first post.  The capacitor values are 22uf 35v, NOT 25v. Thank you Jeremy from Australia. 

Hi Everyone I have picked my fourth Colour Classic today.  The CRT needs replacing as I think the blue gun / colour has completely dropped out.  I have previously converted an Apple //c monitor to LCD by using only the shell and adding in video controllers etc.  The video controller accepts VGA...

Hi everyone A recent project has been servicing my Apple 12" Macintosh RGB monitor M1296 made by Mitsubishi.  I have two of them in mint condition, both known to have minimal use.  I turn them on every 3 months or so and keep a diary simply 'Working great! 01/01/2018".  Well I went to test one...

Really?  I thought I had it for OS X, it's in a time machine backup somewhere

I was wondering how this situation would be managed.  Glad you bit the bullet

Hi! 68KMLA forum members never cease to amaze - thank you for the instruction, consideration and time in replying.  I no longer have to worry what disk images will show up on the Floppy Emu as I can prepare them beforehand should they be a DC6 format.  Looks like it's time to learn Basilisk as...