farris@marlin.NOSC.MIL (Russell H. Farris) (01/17/90)
Can anyone tell me the jumper settings required to make a Tandon Model T65 floppy drive work on my XT clone? The drive is brand new and the dealer assures me it is good, but it won't work as either "A" or "B" with any of the jumper settings I have tried. It will occasionally read the directory, but it will not read or write and I get lots of "not ready," "general failure," and "sector not found" errors. Thanks, Russ Farris (farris@marlin.nosc.mil) (619)553-4129 Code 444 Naval Ocean Systems Center San Diego, CA 92152-5000
skipl@adaptex.UUCP (01/18/90)
/* Written 11:01 am Jan 16, 1990 by marlin.UUCP!farris in adaptex:comp.sy.ibm.pc */ /* ---------- "JUMPERS ON TANDON T65 FLOPPY DRIVE" ---------- */ =Can anyone tell me the jumper settings required to make a Tandon M=odel T65 floppy drive work on my XT clone? The drive is brand =new and the dealer assures me it is good, but it won't work as =either "A" or "B" with any of the jumper settings I have tried. =It will occasionally read the directory, but it will not read or =write and I get lots of "not ready," "general failure," and ="sector not found" errors. Thanks, =Russ Farris (farris@marlin.nosc.mil) (619)553-4129 =Code 444 =Naval Ocean Systems Center =San Diego, CA 92152-5000 =/* End of text from adaptex:comp.sy.ibm.pc */ Russ, It sounds like you do not have a terminator on the drive. This is either by a chip-style terminator that goes into what appears to be an unsued socket on the board or by a jumper that is marked with a "T". Look at the drive circuit board for either of these items. If you have an open socket give the dealer a call. You can usually get away without a terminator on a single drive system, but it's not a good thing to rely upon. You need one to balance the interface signals so they are reliable. If you have a two drive system the terminator >must< be in the drive at the far end of the cable. Also you can only have one terminator active on any single cable chain, so if you have a two drive system you can only have a terminator on the drive at the end of the chain. This applies to hard drives as well. Skip Lutz