MiniScribe 3438 --- HELLLP!!!!

From: Jason Willgruber <roblwill_at_usaor.net>
Date: Tue Mar 16 22:06:02 1999

O.K. I found that. There's still the conflict of wether it is RLL or MFM,
though. I guess I'll try it with the RLL controller that I have...

--
                 -Jason Willgruber
               (roblwill_at_usaor.net)
                  ICQ#: 1730318
<http://members.tripod.com/general_1>
-----Original Message-----
From: Don Maslin <donm_at_cts.com>
To: Discussion re-collecting of classic computers
<classiccmp_at_u.washington.edu>
Date: Tuesday, March 16, 1999 3:44 PM
Subject: Re: MiniScribe 3438 --- HELLLP!!!!
>On Tue, 16 Mar 1999, Jason Willgruber wrote:
>
>>     Does anyone on this vast earth know the jumper settings for a
MiniScribe
>> 3438 hard drive???
>
>______O/_________
>      O\
>
>This should answer your questions.
> - don
>
>             ************************************************************
>                         Miniscribe Disk Drive Specifications
>                                        For
>                                    Model: 3438
>             ************************************************************
>
>             FORM FACTOR                           5.25 inch HH
>             INTERFACE                              ST412/ST506
>             DATA ENCODING METHOD                       2,7 RLL
>             DATA TRANSFER RATE (Mbit/Sec)                  7.5
>
>             DISK DRIVE CHARACTERISTICS
>                HEADS                                         4
>                CYLINDERS                                   615
>                SECTORS/TRACK (512 Byte Sectors)             26
>                WRITE PRECOMPENSATION CYLINDER              128
>                REDUCED WRITE CURRENT CYLINDER              615
>                MINIMUM STEP PULSE RATE (micro-Seconds)       2
>                UNFORMATTED BYTES/TRACK                  15,625
>                RADIAL TRACK DENSITY (TPI)                  588
>                ROTATIONAL SPEED (RPM)                    3,600
>                UNFORMATTED CAPACITY (Millions of Bytes)   38.4
>                FORMATTED CAPACITY (Millions of Bytes)     32.7
>                FORMATTED CAPACITY (MB = 1,048,576 Bytes)  31.2
>
>             ACCESS TIMES (mSec)*
>                SINGLE TRACK                                 15
>                ONE-THIRD STROKE**                           85
>                MAXIMUM                                     190
>             *(BASED ON A 2 MICRO-SECOND STEP RATE)
>             *(INCLUDES SETTLING)
>             **(APPROXIMATION OF AVERAGE)
>
>             POWER REQUIREMENTS
>                DISSIPATION (Watts)
>                   TYPICAL                                 14.5
>                   MAXIMUM                                 17.4
>                CURRENT (Amps)
>                   +5 V DC (+ or - 5%)                      0.5
>                   +12 V DC (+ or - 5%)                     1.0
>                   MAXIMUM STARTUP CURRENT                  3.5
>
>             PHYSICAL DIMENSIONS
>                HEIGHT (in)                               1.625
>                WIDTH (in)                                 5.75
>                DEPTH (in)                                    8
>                WEIGHT (lbs)                                2.2
>
>             OPERATIVE ENVIRONMENTAL LIMITS
>                MINIMUM TEMPERATURE (Centigrade)              4
>                MAXIMUM TEMPERATURE (Centigrade)             50
>                THERMAL GRADIENT (Degrees C/Hour)            10
>
>             RELIABILITY
>                MTBF (Hours)                             20,000
>                MTTR (Minutes)                               30
>                COMPONENT DESIGN LIFE (Years)                 5
>
>      **************************************************
>
>      3212                        3412                       3425/3438
>     ------                      ------                     -----------
>
>PIN 1                        PIN 1                      PIN 1
>ON/OFF  CLOSED / NU          1  CLOSED / NU             1  ON / NU
>OFF     CLOSED / TEST        2  CLOSED / TEST           2  ON / TEST
>OFF     CLOSED / TEST        3  CLOSED / TEST           3  ON / TEST
>OFF     CLOSED / TEST        4  CLOSED / TEST           4  ON / TEST
>ON      OPEN / DS 4          5  OPEN / DS 4             5  OFF / DS 4
>ON      OPEN / DS 3          6  OPEN / DS 3             6  OFF / DS 3
>ON      OPEN / DS 2          7  OPEN / DS 2           * 7  OFF / DS 2
>OFF     CLOSED / DS 1        8  CLOSED / DS 1         * 8  ON / DS 1
>     SHUNT                       SHUNT                       SWITCH
>*  NOTE:  If twisted cable or second drive,7 & 8 are switched;7 on-8 off.
>
>
>
>

Received on Tue Mar 16 1999 - 22:06:02 GMT