Rick, I just got back home and read this email. Thanks, what is your web address? Does it have a schematic or parts list? Regards, Jim -----Original Message----- From: Rick C. To: PICLIST@MITVMA.MIT.EDU Date: Wednesday, February 20, 2002 7:07 PM Subject: Re: [EE]: Re: A Scope Question >P.S. Jim. I'll make it available on my website for download if you're >interested so I won't get flamed for sending it here. :-) >Rick > >James Paul wrote: > >> Nope, no flicker or burning smell. The screen just went extremely dim. >> You can see the screen is still working, but the backlight is not on. >> I can run the backlight from an external inverter, and all is well. >> A power supply board costs $100.00 and the display assembly is $399.99. >> I'll keep you posted on what I find out. Thanks for the insight. >> >> Regards, >> >> Jim >> >> > Did your display flicker a lot before dying? Any burning smell from the >> > scope at any stage? My TDS220 did all this a few weeks out of warranty. >> > Tek replaced the entire display even though you could still make out >> > the display (you had to look really closely though). Cost about $600 if >> > I remember correctly. One of my colleagues had a display die but in his >> > case the unit was only a few weeks old. I'd be interested to hear how >> > you get on with this or if anyone else had similar problems with the >> > TDS series. We probably have about 40 of them here. These are the most >> > serious problems I'm aware of. >> > >> > Joe >> > >> > >> > ----- Original Message ----- >> > From: "James Paul" >> > To: >> > Sent: Tuesday, February 19, 2002 9:42 AM >> > Subject: [EE]: A Scope Question >> > >> > >> >> All, >> >> >> >> I have a Tektronix TDS210 Oscilloscope that the backlight just went >> >> dark. I've tried changing the contrast, checking the CCFL tube, and >> >> associated wiring. All looks and checks good. My next thought was >> >> the CCFL inverter circuit. I pulled the two multivibrator >> >> transistors and >> > checked >> >> them and they appear okay. I checked continuity of the inverter >> >> transformer and all looks good with it too. I thought for sure it >> >> would be either the CCFL tube or the transistors. Anybody have any >> >> ideas of what to look for next or in which direction to go from here? >> >> A new P.S. board is available from Tek for about $100.00, so if I >> >> can't figure out something soon, I'll just order a new board. But >> >> if I can get this one going, I'll have the scope back in service >> >> sooner. If anyone has any ideas, I'd love to hear them. >> >> >> >> Thanks and Regards, >> >> >> >> Jim >> >> >> >> -- >> >> http://www.piclist.com#nomail Going offline? Don't AutoReply us! email >> >> listserv@mitvma.mit.edu with SET PICList DIGEST in the body >> >> >> >> >> > >> > -- >> > http://www.piclist.com hint: To leave the PICList >> > mailto:piclist-unsubscribe-request@mitvma.mit.edu >> >> -- >> http://www.piclist.com hint: To leave the PICList >> mailto:piclist-unsubscribe-request@mitvma.mit.edu > >-- >http://www.piclist.com hint: To leave the PICList >mailto:piclist-unsubscribe-request@mitvma.mit.edu > > -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu