13 Jul
2020
13 Jul
'20
12:21 p.m.
On 7/13/2020 2:02 PM, Chuck Guzis via cctalk wrote:
On 7/13/20 11:18 AM, Jim Brain via cctalk wrote:
> The Tandon 848 is not one of my favorite drives. There is an option not
> to pass the Motor On/ signal unless a disk is loaded and the drive door
> is closed. Check U16 pin 8, which should be high for MOTOR ON.
I will do so.
>
> It seems more like an oversight that all 4 drives don't spin. Be aware
> that the 848's motor controls are different from 5.25", where one line
> controls all motors. The 848 uses pins 4,6,8 and 24 on the interface to
> control the motor--each drive has a jumper that dictates which line will
> be used. (MC 1-4).
Yep, one of the drives was set to DS2, so I moved it back to DS1 so I
could test as a primary drive.? I agree the drives would be different
from 5.25" ones, but I connected them to the same
PSU that runs my
TM848E successfully.? It seems strange that a working PSU that
drives a
TM848E would not supply enough or the right voltage for a TM848-02.
Jim