bluneski@pogo.WV.TEK.COM (Bob Luneski) (02/21/90)
Larry in <900216.14370871.037058@SFA.CP6> you write: >power the modem off and power it back on. Upon powering it back up, my >SM 124 monochrome monitor suddenly gyrated, displaying the screen in >two halved parts. A few seconds later, everything went black. No, it > I have no idea how switching modem off and then back on caused my >monochrome monitor to die but, at any rate, I don't have monochrome. And >nope, there are no other STers within 250 miles of me so that I can test >the monitor on their equipment. I assume the monitor is dead and not something >on the computer. But I don't know. If anyone with some documentation (what >is documentation on an ST???) can come up with a clue, please let me know!!! The SM 124 appears to be very sensitive to sudden power surges such as the one induced by turning your modem off and on. The culprit is generally a small 2 amp fuse located on the base of the board near where the wireing for the speaker attaches to the monitor board. I have had this fuse blow 6 times over the last 4 years on my early SM124. I suggest replacing the fuse with a slow-blo type 2 amp, this seems to make them last longer. You will have to remove the monitor case to replace the fuse and as with all high voltage equipment, if you don't know what your doing ask a friend who does. At the very least trying a .20 cent fuse beats an expensive service call. I hope this helps, ____________________________________________________________________________ Bob Luneski Diamond Back Support Hotline: bluneski@pogo.WV.TEK.COM Genie: B.LUNESKI1 The opinions expressed herein are my own and in no way reflect the opinions of Tektronix, Inc.