10 Jan
2006
10 Jan
'06
5:22 p.m.
Tony Duell wrote:
Y'know that was one of my first thoughts, particularly when I read about
the LED going out. But then I thought - no, surely, I mean come on...
Gordon.
Okay, I was
trying to find out if my H745 is shady, so I busted out the DVM
and put the probes on the blue wire and a ground wire. (blue is supposed to
be -15v) Nothing. Okay, so just to check my logic, I hooked the probe to
what is supposed to be a +5v line and a ground on the same connector, and
the light on the 7441 regulator goes out. Nothing on the DVM.
The DVM is set to "20" in the "DC volts" area (it's one of those
yellow dial
type DVMs)
Juat to check the obvious, you do have the leads in the right sockets on
the DMM. You've not got them in the current (amps) sockets? Most DMMs
have one common socket (black lead goes in here), one active socket for
voltage and resistance (you want to put the red lead here for the
measurements you're doing) and one or more sockets for current (red lead
goes into those for current measurements).