68kMLA Classic Interface
This is a version of the 68kMLA forums for viewing on your favorite old mac. Visitors on modern platforms may prefer the main site.
| Click here to select a new forum. | | Mac IIx C3 value requested | Posted by: Juror22 on 2018-02-25 22:18:51
I recapped a IIx board a very, long, while back and thought I would fire it up tonight. So, I hooked up a monitor and keyboard, pressed the power button and ... nothing.
I opened it up, checked the batteries that I had put in it when it was recapped (probably over a year [or two?!?] ago) and both were practically dead. Since it had one of TT's battery boards in it, I put in some nice, newish, fully charged batteries and I tried the start button again and ... nothing.
Since it had been a while, I looked up how to 'jump start' a Mac II and when I performed that procedure, the Mac booted right up. While taking a look at things, it looked like C3 was not installed, so I checked the internet to either find pics of the cap that listed its value or the value itself. I can't believe that I did not install one, when I recapped the board, but it is just a set of clean holes where the axial capacitor C3 should be AND I cannot find the values (I would like both uF and voltage).
If anyone either knows what it is, or can check their Mac IIx board and pass along the values, I would appreciate it.
I did find copies of the II/IIx startup circuit that list it as 47uF, but I would appreciate an answer that is based on what was physically installed or successfully used as a replacement.
| Posted by: superjer2000 on 2018-02-27 19:07:29
Hi. I just checked mine. 220uf 16v axial..
| Posted by: Juror22 on 2018-02-28 06:45:31
Thank you superj2000, very much appreciated!
| | 1 |
|