>>>> So, from what I can see, the drive should spin up correctly, but for >>>> some reason it goes into fault mode. I am right in thinking that upon >>>> load, the heads should continue moving forward until the first track is >>>> found, right? I should not have to perform a seek manually from the PDP? >>>> If this is not the case, perhaps there is something else wrong. >>> I’m not an RL02 hardware expert at all, just a daily user back in the >>> day. I’m reading this assuming that at all times the drive is >>> correctly hooked up to an RLV12 in a running PDP with the correct >>> cable and termination present on the drive? If it isn’t you’ll get a >>> fault condition instead of ready after spin up. >>> >>> A >> No worries, your input has been valuable, so thank you. >> >> For anyone else who might have an idea: > ON fault the heads are retracted and will not load till cleared. > Least mine behaves that way. > > Most common problems are wrong drive address, cable issues, no terminator. > Others include head lock not removed or the auto unlock style of > headlock has > the tab broken. > >> It seems to be hooked up correctly. When it is in the weird flashing >> ready state, the boot loader says "Read error" or "Device error" >> randomly. The heads oscillate back and forth very slightly as if it is >> trying to align itself better on the first track, which doesn't exist >> because it hasn't moved far enough into the pack. > IF in fault its resetting to retracted on every try. > If not something else is wrong. > >> I'm beginning to think the heads are bad which will be far too expensive >> so I may end up giving up. > > Heads are not that expensive... However you could have a wrong pack > or one that has been erased and has no servo tracks. You must start with > a known good pack and cleaned heads. > > > Allison
Well, I replaced the DOWN head and adjusted the amplitude on the r/w board. The drive now stays in READY without the FAULT lamp coming on, so this is promising. The heads load onto the first track. Without any r/w operations, should the READY light flash? Mine is flashing a little but not too rapidly. I am guessing this is while it tries to keep the heads positioned over the track. When I try to boot using the MXV11-BF boot roms, it says: ]] ?BOOTROM-F- DL 0 read error The alignment between the two heads looks okay also. Any ideas, anyone? Thanks, Aaron.
