1.4.1.9 - Norsk Data hardware - ND-other

Description

• The backwiring or motherboard for the ND-5000 Compact (David) computer.
• The motherboard has all the connectors for all the PCBs, internal and external devices, power supply and the panel.
• Two of the pins for the configuration EEPROM PQ2817 (pin Vcc and WE) is bent and not correctly inserted into the socket. There are reports about unstable/faulty MFB behaviour on this computer and here is the reason.
• Print: A1   ECO: A
• PCB size 470 x 442 mm, 10 layers
• Release date xx. xxx. xxxx

Chipset

• None

LEDs

• None

Straps

• None

Switches

• None

Connectors

• Front (component) side
  • ND-100 slot x 9 pieces
  • MFB slot x 5 pieces
  • Floppy drive
  • Streamer drive
  • Upto 4 SCSI disc drives
  • GTS or Streamer drive 2
  • The SCSI termination and/or strap fields
  • The front panel
  • The fan unit
  • The CPU ident PROM
  • The MFB configuration EEPROM
  • Four test points: GND, +5V, +5V STBY, +12V
• Back (solder) side
  • The power supply
  • Samson CPU slot
    or
    Rallar CPU + 2 slots for MFB memory
  • System plug board
  • MFB plug board x 5 pieces
  • ND-100 plug board x 9 pieces
  • Four test points: GND, +5V, +5V STBY, +12V