On 2/10/2015 3:00 AM, Gene Heskett wrote: snip > The diode checker of the modern meter reads the voltage drop, fwd > direction on this type of diode s/b under .15 volts, while the reverse > of the probes should show a much higher voltage, maybe even off-scale > for reverse. Right where they sit in circuit. A reading in both > directions that is similar and probably under .1 volts is a shorted one.
I checked the three diodes on the bottom near output port and they all read generally the same: forward bias ~0.48V and reverse bias ~1.47V. I checked a few of the topside diodes of the same value and got: forward bias ~0.48V and reverse bias .OL. It appears that the bottom diodes are bad. Is there any way to check the FET's. These are going to be a PIA to do a wholesale replacement due to the way they're mounted to the heatsink. It looks easy, but with the spring clamps and the age on the heatsink compound, they're locked in there pretty well. ------------------------------------------------------------------------------ Dive into the World of Parallel Programming. The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
