16 Mar
2005
16 Mar
'05
8:03 a.m.
Hi,
I have returned to my HP9915B that blows its fuse as soon as you
power it up.
I followed Tony's advice and checked the two large capacitors (C46
and C58), and the PIC645 and they are all OK. I then checked the
U30 (3524) in the chopper sense circuit and its OK as well.
I checked the parts after removing them from the PCB to ensure that
there was no interference by other components.
So now I am really at a loss and wonder if anybody has any ideas.
Best Regards
**vp