compaqportableplus
Veteran Member
Having some issues with the internal PSU on the Toshiba T1200 I got recently.
When I first got it, I noticed all of the caps were leaking, and the entire PCB was covered in electrolyte, so I washed the PCB and replaced all caps.
Now when I plug it in, the green light comes on, but when I flip the switch, nothing happens. The motherboard board definitely works, because I was able to get it to fire up by connecting 5-volts directly to the motherboard's power connector. It booted from a floppy disk and everything.
Here's a pic of the PSU (the two big caps are bent over because the replacements were quite a bit taller than the originals, but they are fine):
Is there a component that commonly fails on these? Or has anyone successfully replaced the internal PSU with something else? There's a lot of connections though, so that wouldn't be too easy I don't think.
And yes, the fuse is good. I've resoldered almost everything on the top side of the board to no avail.
Always loved the T1200, so I'd really like to get this thing working! Also can't wait to see if the funky JVC 26-pin hard drive works too.
Thanks!
When I first got it, I noticed all of the caps were leaking, and the entire PCB was covered in electrolyte, so I washed the PCB and replaced all caps.
Now when I plug it in, the green light comes on, but when I flip the switch, nothing happens. The motherboard board definitely works, because I was able to get it to fire up by connecting 5-volts directly to the motherboard's power connector. It booted from a floppy disk and everything.
Here's a pic of the PSU (the two big caps are bent over because the replacements were quite a bit taller than the originals, but they are fine):
Is there a component that commonly fails on these? Or has anyone successfully replaced the internal PSU with something else? There's a lot of connections though, so that wouldn't be too easy I don't think.
And yes, the fuse is good. I've resoldered almost everything on the top side of the board to no avail.
Always loved the T1200, so I'd really like to get this thing working! Also can't wait to see if the funky JVC 26-pin hard drive works too.
Thanks!