68kMLA Classic Interface

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Power book 180, power supply making tick tick noise
Posted by: croissantking on 2026-02-08 16:21:49
This part is the correct replacement, it’s significantly smaller in size than the original but can be made to fit:
Posted by: Maccollector on 2026-02-08 22:44:42
This part is the correct replacement, it’s significantly smaller in size than the original but can be made to fit:
thank you ... I will get about 5 of them and see how I go. So far nothing else is getting hot apart form inductor and this diode. I have busted power supply to make sure capacitors are ok. They seem to be, but I will replace them too
Posted by: Maccollector on 2026-02-09 00:46:56
Diode removed and hard drive started to spin but by listening to the drive, reading heads do not seem to be moving. Not sure if it will chime as I did not attached top half
Posted by: GRudolf94 on 2026-02-10 03:07:02
1) your miniDIN wasn't corroded. You could solder that back on
2) Those inductors are hot because there's something drawing too much current. (see 4)
3) That diode looks cooked and seems to have reflowed itself a few times.
4) You probably have a short downstream of it
5) Please don't start yanking parts at random without understanding the circuit around them if you have any intention of restoring the machine. You could break something worse.
Posted by: Phipli on 2026-02-10 03:11:32
Where can i buy these??? This one was corroded legs broke off
They're a common cheap part. Look for a "mini din PCB mounted socket 8 pin" or similar. If you do ever need any.

Bleh, just ignore me, there are way more posts after where I'd got to than I realised. Long been answered many times over. I'll go back to my corner.
Posted by: Maccollector on 2026-02-10 04:26:22
1) your miniDIN wasn't corroded. You could solder that back on
2) Those inductors are hot because there's something drawing too much current. (see 4)
3) That diode looks cooked and seems to have reflowed itself a few times.
4) You probably have a short downstream of it
5) Please don't start yanking parts at random without understanding the circuit around them if you have any intention of restoring the machine. You could break something worse.
After taking diode off, hard drive started to spin but there was no activity from reading heads. Also once I connected top half with the speaker today computer chimed and straight to a floppy disk with ?. Can't find OS to boot from. Did not expect 20Mb drive to be working
Posted by: Maccollector on 2026-02-10 15:51:02
1) your miniDIN wasn't corroded. You could solder that back on
2 legs on the side that give stability and strength have broken off. Half of the legs are still soldered to the pcb. I found this one but it has only 4 connectors at the back . Will this one suffice

Posted by: GRudolf94 on 2026-02-12 14:10:44
No, that's not the correct part - it is through-hole. It should be possible to still get the original jack to stick well, even with the mounting pins broken. You may need to use some header pins as reinforcement.
Posted by: luRaichu on 2026-02-12 16:15:39
No, that's not the correct part - it is through-hole.
?? isn't the original mini DIN socket a through-hole part
Posted by: croissantking on 2026-02-12 19:14:45
?? isn't the original mini DIN socket a through-hole part
It’s surface mount on the 180
Posted by: luRaichu on 2026-02-12 19:27:50
Why
Posted by: Maccollector on 2026-02-12 19:46:42
?? isn't the original mini DIN socket a through-hole part
Some of it is. Actual pins arewh
Why
A do you mean???
Posted by: Maccollector on 2026-02-13 03:35:01
?? isn't the original mini DIN socket a through-hole part
No, mounting pins are thru hole, other are surface mount

Why
what do you mean why????
Posted by: croissantking on 2026-02-13 04:22:16
what do you mean why????

Pretty standard luraichu tomfoolery
Posted by: croissantking on 2026-02-13 07:31:40
IMG_9227.jpeg

Here’s a pic of the PB160/180 board
Posted by: Phipli on 2026-02-13 07:36:29
View attachment 95565

Here’s a pic of the PB160/180 board
You're a port short!
Posted by: Maccollector on 2026-02-16 01:35:41
Well that TVS diode was really small, but I managed to solder it. Laptop now chimes and boots. However, top one of those IRFR 9020 showing warm glowing how on thermal camera. Should I replace it or leave it.
Posted by: Maccollector on 2026-02-16 01:37:44
But after assembling the laptop, I thought to try hows mouse ball tracking and did not track correctly, It was jumping and i knew it needs cleaning. This is what I found, beside broken standoff

After cleaning them now it tracks correctly
Posted by: Maccollector on 2026-02-16 02:01:46
And here it is, in all its glory ( minis a DIN port ) powering on and chiming
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