tandon 848-2 8" floppy drive

From: Don Maslin <donm_at_cts.com>
Date: Sat Jun 12 18:05:54 1999

On Sat, 12 Jun 1999, Lawrence LeMay wrote:

> Does anyone here have the specifications for a Tandon 848-2 8"
> floppy drive? Mainly i'm interested in if it is DSDD, and if
> so, then i would need to know some data about what type of power
> connector it uses.
 
The 848-1 is single sided, the -2 is double sided. I cannot ID the
power connector for you, but pin-1 is 24vdc and pin-5 is 5vdc. The
remaining pins are return.

Jumper functions are as follow:
 
 
                      TANDON TM848 STRAPPABLE OPTIONS
 
                                                            OUT
                              Trace IN (not
        Option Designator (installed) installed)
      ---------------------------------------------------------------
      Drive Select DS1-DS4 DS1
 
      Side Select Options
      Using Drive Select 1B-4B X
 
      In Use, Drive Select Z(U3, 1-16) X
 
      In Use, Head Load Y X
 
      Ready, Alternate
       Output Pad R(U3, 7-10) X
 
      Radial Ready RR X
 
      Ready, Modified RM X
 
      Radial Index RI X
 
      Index, Alternate
       Output Pad I(U3, 6-11) X
 
      In Use, Alternate
       Input Pad D X
 
      Diskette Lever Lock
       Latch Option DL X
 
      Disk Change DC X
 
      Two-Sided Diskette
       Installed 2S X
 
      Stepper Power
       from Drive Select DS(U3, 2-15) X
 
      Stepper Power
       from Head Load Line HL X
 
      Head Load Alternate
       Input Pad C X
 
      Radial Head Load
       Signal A(U3, 3-14) X
                              B(U3, 4-13) X
                              C(U3, 5-12) X
 
      Write Protect WP X
 
      No Write Protect NP X
 
      Head Side Select
       Options S1-S3 S2
 
      Spindle Motor
       Control Options M1-M4 M1 M2,M3,M4
 
      Motor Control Select MC1-MC4 MC1
 
Factory settings are as shown in the table.

                                                 - don
Received on Sat Jun 12 1999 - 18:05:54 BST