more bad solder joints.
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Anyone ever seen this happen to the DEF yoke connector? 128K
- Thread starter uniserver
- Start date
Yeah, be careful there, high voltages and all that.
That's good news that you saw a flash when you slapped it. I would suggest reflowing the solder joints on the pins for the other analog board connectors. It's only like 20 spots to do them all.
That's good news that you saw a flash when you slapped it. I would suggest reflowing the solder joints on the pins for the other analog board connectors. It's only like 20 spots to do them all.
Great news! I was doing some bend testing to see what area I needed to resolder, when I brush the J4 connector and the screen flickers on! So I resolder the J4 connector pins and viola! It works! That little bastard was hiding in plain sight!
On another note, while peeking around inside, I noticed that the motherboard had a daughterboard installed on top of it. This must explain why my 512k is able to recognize the HD20 that came with it! I don't know what kind of voodoo magic is going on with that expansion board, but it somehow turned the computer into a 1024k 512ke! Super wierd because normally M0001w's aren't compatible with HD20s...
On another note, while peeking around inside, I noticed that the motherboard had a daughterboard installed on top of it. This must explain why my 512k is able to recognize the HD20 that came with it! I don't know what kind of voodoo magic is going on with that expansion board, but it somehow turned the computer into a 1024k 512ke! Super wierd because normally M0001w's aren't compatible with HD20s...
By the way here's proof 
Congratulations! I had a very similar thing happen to the analog board on a Plus a little while ago: viewtopic.php?f=3&t=22279
That daughter board probably has the 128K ROM (from the Mac 512Ke and Mac Plus), which includes SCSI support. I had one of those a few years ago - I think it plugged into the ROM sockets or had a CPU clip... I can't remember now.
That daughter board probably has the 128K ROM (from the Mac 512Ke and Mac Plus), which includes SCSI support. I had one of those a few years ago - I think it plugged into the ROM sockets or had a CPU clip... I can't remember now.
Haha thanks! I really is satisfying to finally fix something you put so much time into.
