On Mar 14 2005, 13:29, Randy McLaughlin wrote: pin 2 I have not misread the table. The point is that pin 2 controls the density, no matter how you set the "LG" jumper, and changing the density may or may not change the speed, depending on the jumper at "I". But either way, changing its state changes the density, but not necessarily the speed. change. Read it again. I just did. It does not say that anywhere in the text, the tables, or diagrams. What it does say or show, in several places, is that the default setting is "LG" and "I" not fitted, and that that condition makes pin 2 control the change from normal density to high, and does not change the speed. It also says in the table that "LG" determines how pin 2 controls the density, and that "I" controls whether the speed changes *when the density changes*. I've also found on my system a TEAC document for the FD505. It clearly states that pin 2 is the "HD IN" density select input. And a document "FD-55GFR" (but it doesn't say which suffix). It, too, clearly says that pin 2 is the density select, that "LG" controls the polarity of the density select, and that "I" and "IS" control how this affects the speed ("I" to determine if the speed changes at all, in response to density changes, and "IS" controls whether that is latched once the drive is selected). -- Pete Peter Turnbull Network Manager University of York