pniles
Newbie level 2
fluke 93 scopemeter
Any chance of finding out where to get Fluke 93 Scopemeter schematics? I have been all over the web as well as the folks who Ebay these scopes. The unit I have will not power up. Some prelim looksee shows the on/off switch either pulls down or pulls up on an IC input. One of my problems is this scope seems to have several different grounds. I can't find a consistent ground such that I get logic power supply values when I probe over several componets connected to the circuit. I think it has a boot strap circuit using a LM 358 but when I use the gnd associated with the LM 358 the logic values are no longer reasonable.
Thanks pn
Any chance of finding out where to get Fluke 93 Scopemeter schematics? I have been all over the web as well as the folks who Ebay these scopes. The unit I have will not power up. Some prelim looksee shows the on/off switch either pulls down or pulls up on an IC input. One of my problems is this scope seems to have several different grounds. I can't find a consistent ground such that I get logic power supply values when I probe over several componets connected to the circuit. I think it has a boot strap circuit using a LM 358 but when I use the gnd associated with the LM 358 the logic values are no longer reasonable.
Thanks pn