1.4.7.1 - Norsk Data - Floppy disc drives

Description

• Fuji (Toshiba) floppy disc drive, type FDD5862A (A), replacement drive.
• NEC floppy disc drive, type FD1157C (B), original drive.
• Toshiba floppy disc drive, type FDD6782 (C), replacement drive.
• Capasity 1.2 MB
• Main PCB size 100 x 136 mm, 2 layers (A)
• Main PCB size 124 x 106 mm, 2 layers (B)
• Main PCB size 92 x 81 mm, 2 layers (C)
• Release date xx. xxx. xxxx

Chipset

• MC2871 or
  MC2882 - Step motor driver
• MC2875 - Read/Write head driver
• MNT90105 or
  T6676AS or
  TC8600F - Floppy Disc Mechanism Controller

LEDs

• Access (red)

Straps

• Default ND jumper settings:

  DC		Open		O  O
  DE		Open		O  O
  D1		Closed		O=O
  D2		Open		O  O
  D3		Open		O  O
  D4		Open		O  O
  DX		Closed		O=O
  HD		Closed		O=O
  HM		Open		O  O
  LD		Closed		O=O
  MUX		Open		O  O
  P5		Open		O  O
  SR		Closed		O=O
  TM		Closed		O=O

• TP - Test Points

  AD+
  AD-
  DD+
  DD-
  DG
  DI
  IP
  IX
  RD
  RY
  STP
  WP
  ZS

Switches

• None

Connectors

• Floppy disc controller
• Power