From: Krzysztof Paizert [paizert@rts.com.pl]
Sent: Friday, 17 August, 2001 10:57
To: Nir Dary
Subject: TOP DRIVE 1050

Hello

Zenon made you a TOP-DRIVE 1050. He also include
a description of assembly it in drive. I'll send
the module today. Let me know when you got it.

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Description of TOP-DRIVE 1050 assembly.

- Take out integrated circuit U10 from socket
  (on disk drive board)

- In place of original disk drive's ROM put module
  TOP-DRIVE 1050

- Blue wire of connector connect with pin
  on disk drive board. The pin is located
  near potentiometer TP10

- Yellow wire of connector connect with
  resistor R66 on disk drive board.

- Assemble whole

- Turn on disc drive with raised lever
  (raised lever - this should means a thing
  that put on/off the head to disk ;-) )

- Turn on computer. The menu of TOP-DRIVE
  will be reading from disc drive's ROM.

- Put disk, press start or select key

- During reading, a message 'BOOT ERROR' will
  apear, but never mind!, that's OK.

- To module TOP-DRIVE I gave ram EPROM 27128,
  because I don't have 2764. In this eprom
  its two halfs have the same program.
--------------
  [1.JPG]

A - blue
B - yellow

NOTE: On board you should resolder JP1 to JP7
      like on the diagram above.
      If disk drive has had eprom before, JP1 to JP7
      should be ok and you shouldn't do anything with
      JP1 to JP7.
--------------
 Module in disk drive 1050

   [2.JPG]

B - original socket on disk drive's board
A - additional socket. You should put this
    additional socket on pins of TOP-DRIVE
    module and now module with additional
    socket put to socket B.


Description: Zenon/Dial
Translation K.P.
-----------------------------------------------
I hope this time you will have working upgrade
of disk drive 1050.

Regards
Krzysiek