This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C6BBC0.818E3832 Content-Type: text/plain You might check to be sure that only one drive in the chain (the last one) has a terminating resistor pack installed. Or maybe neither of them has a terminating resistor pack. Both situations will cause strange data problems. Ron -----Original Message----- From: sebhc-bounces@sebhc.org [mailto:sebhc-bounces@sebhc.org] On Behalf Of Glenn Roberts Sent: Tuesday, August 08, 2006 10:05 PM To: sebhc@sebhc.org Subject: [sebhc] SY1: not working i have a two-drive H8/H17 setup and the second drive (SY1:) has a problem. when i run TEST17 I can get rotational speed but the disk fails anything that requires read/write (it acts as if there is an unformatted disk in the drive). I swapped the jumper blocks with SY0: and the problem continues to exist, which tells me it's the drive, not the controller. The drive is the Siemens "garage door" type (FDD 100-5B). I have the OEM manual that came with it but it's mostly on installation - not really any diagnostic information. Is there a scan of the service manual available somewhere? anyone have suggestions on how to debug this? yeah I know I could try and buy an old PC drive on eBay but i'd prefer to try and get this drive working if possible (after all, I paid something like $400 bucks for this 25 years ago!). I don't think it's a dirty head (cleaned it not too long ago) but I'll check again. thoughts welcome! - Glenn ------_=_NextPart_001_01C6BBC0.818E3832 Content-Type: text/html Message
You might check to be sure that only one drive in the chain (the last one) has a terminating resistor pack installed. Or maybe neither of them has a terminating resistor pack. Both situations will cause strange data problems.

Ron

-----Original Message-----
From: sebhc-bounces@sebhc.org [mailto:sebhc-bounces@sebhc.org] On Behalf Of Glenn Roberts
Sent: Tuesday, August 08, 2006 10:05 PM
To: sebhc@sebhc.org
Subject: [sebhc] SY1: not working

i have a two-drive H8/H17 setup and the second drive (SY1:) has a problem.  when i run TEST17 I can get rotational speed but the disk fails anything that requires read/write (it acts as if there is an unformatted disk in the drive). I swapped the jumper blocks with SY0: and the problem continues to exist, which tells me it's the drive, not the controller.  The drive is the Siemens "garage door" type (FDD 100-5B). I have the OEM manual that came with it but it's mostly on installation - not really any diagnostic information. Is there a scan of the service manual available somewhere?
 
anyone have suggestions on how to debug this?  yeah I know I could try and buy an old PC drive on eBay but i'd prefer to try and get this drive working if possible (after all, I paid something like $400 bucks for this 25 years ago!).  I don't think it's a dirty head (cleaned it not too long ago) but I'll check again.
 
thoughts welcome!
 
- Glenn
 
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