Both machines are running System 7, the Macintosh SE as well as the PowerBook I was trying to connect to. So file sharing should have been available on both sides.
Macintosh SE sudden death: burned chip on logic board + suspected analog board capacitor leakage
- Thread starter victor.muc
- Start date
Generally if I'm going near the PSU or analogue board, I don't rush. I unplug the computer, toggle the power switch and then leave it for at least a day. But yes, take care, they can pack a punch. Also, take super care around the tube - they're very easy to break if you knock the neck board. Especially as you pull out cables from the logic board. There is always something else to be fixing
Last edited:
I’m doing the same. When I fixed the floppy drive, the machine was completely unplugged for about a month while I was waiting for replacement gears, which gave me some peace of mind. It’s now been powered off for more than two weeks, so I know it should be safe, but I’m still a bit nervousGenerally if I'm going near the PSU or analogue board, I don't rush. I unplug the computer, toggle the power switch and then leave it for at least a day. But yes, take care, they can pack a punch. Also, take super care around the tube - they're very easy to break if you knock the neck oard. Especially as you pull out cables from the logic board. There is always something else to be fixing
What makes me most uneasy is having to remove the anode cap when going further with the analog board and PSU.
And the glass tube already gave me a few heartrate spikes while unplugging the logic board power connector since that thing sits really tight.
Just make sure you press the latch, and then rock it from side to side until it works loose, rather than pulling on it. Which I'm sure you've figured but worth saying just in case.
Yes, the first time I disassembled it, I spent a good 30 minutes fighting with that connector before realizing it actually has a latch
Update: I finally found the time to fix it.
I removed the old burned chip and installed a socket in its place. Then I simply fitted the replacement chip I got from AliExpress. It works like a charm!
So in the end it really was just that one chip that was taking down the whole machine. The PSU and analog board are fine.
I removed the old burned chip and installed a socket in its place. Then I simply fitted the replacement chip I got from AliExpress. It works like a charm!
So in the end it really was just that one chip that was taking down the whole machine. The PSU and analog board are fine.
Attachments
Congratulations
Be interesting to know if the serial still works, but I don't know if you want to test it or not after the previous events!
Thanks!Congratulations
Be interesting to know if the serial still works, but I don't know if you want to test it or not after the previous events!
I haven’t had the courage to test it yet, but I’ll definitely do it and report back!
Wow, interesting! I didn’t know Germany was such a big supplier back then. I pulled my PRAM battery when I fixed the board, and mine had the exact same marking.
Oh, West Germany and East Germany had strong manufacturing sectors each side of the wall.Wow, interesting! I didn’t know Germany was such a big supplier back then. I pulled my PRAM battery when I fixed the board, and mine had the exact same marking.
East Germany was the source of some of the most advanced silicon within the Soviet block. Also good microphones.
West Germany had even more manufacturing as you'd expect, being the home of Siemens, Bosch, BASF, AEG and ThyssenKrupp, as well as VARTA... To say nothing of VAG and BMW etc.
Very interesting! I may have to revisit some history lessons about my country
Read up on VillageTronic and Formac as wellVery interesting! I may have to revisit some history lessons about my country
I will!Read up on VillageTronic and Formac as well
Similar threads
