1.4.7.1 - Norsk Data - Floppy disc drives

Description

• The Toshiba 8" MKM floppy disc drive used both in the internal and in the external floppy box.
• With 220/240V 50Hz AC drive motor 1503-534 (strong enough for a small car :-) ).
• A large 24V DC stepping motor type 103-770-36 is also used.
• Main PCB size 207 x 194 mm, 2 layers
• Capasity 1.2 MB
• Release date xx. xxx. xxxx

Chipset

• T3930

LEDs

• Access (red)

Straps

• Default ND jumper settings:

  -15V/-5V		Closed		O=	O	O
  S3	Open	O	O
  S2	Closed	O=	O
  S1	Open	O	O
  IT	Open	O	O
  SFS	Closed	O=	O
  HDS	Open	O	O
  DS4	Open	O	O	O
  DS3	Closed	O	O	=O
  DS2	Open	O	O	O
  DS1	Open	O	O	O
  C	Open	O	O
  HI	Open	O	O
  D	Open	O	O
  DC	Open	O	O
  2S	Closed	O=	O
  SF	Open	O	O
  I	Closed	O=	O
  R	Closed	O=	O
  S	Closed	O=	O
  A	Closed	O=	O
  B	Closed	O=	O
  X	Closed	O=	O
  DL	Closed	O=	O
  HLL	Open	O	O
  DS	Open	O	O
  HL	Closed	O=	O
  Y	Open	O	O
  Z	Closed	O=	O

• TP (PJ8) - Test Points

  AD
  GND
  AD
  GND
  DD
  GND
  DD

• TP (PJ15) - Test Points

  8
  6
  4
  I
  R
  S

• TP (PJ18) - Test Points

  WG
  CK
  OS2
  OS1
  SP
  RD
  IX

• TP (PJ21) - Test Points

  EG
  HL
  I2
  I1
  ZS
  WP
  DR

Switches

• None

Connectors

• Floppy disc controller
• Power 230V AC
• Power 5V, -15V (or -5V), +24V DC