char1ie
New member
Hi all, looking for some help.
I just did a Bob Roberts rebuild on a Robotron power supply. The cap kit was fine - I re-fitted the board and it worked fine.
So far so good.
Then I did the three bridge rectifers and the big 18000uf cap at C10. When I powered it on it ran for a few seconds, made a hissing sound then the fuse at F4 (-12v) blew and the machine died. Which of my three BRs has failed and would anybody like to predict which component I may have installed the wrong way round?
There was lots of heat around the big metal BR.
Thanks all for your expertise.
Charlie
I just did a Bob Roberts rebuild on a Robotron power supply. The cap kit was fine - I re-fitted the board and it worked fine.
So far so good.
Then I did the three bridge rectifers and the big 18000uf cap at C10. When I powered it on it ran for a few seconds, made a hissing sound then the fuse at F4 (-12v) blew and the machine died. Which of my three BRs has failed and would anybody like to predict which component I may have installed the wrong way round?
There was lots of heat around the big metal BR.
Thanks all for your expertise.
Charlie
