ZX Spectrum Plus3

From HwB

Revision as of 19:28, 27 September 2006 by Joakim (Talk | contribs)

(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

Todo: This page needs some editing.

Sinclair Research logo

Computer manufactured by Sinclair Research. Launched in 1988.

Technical specs

CPU:	Zilog Z80A, 3.54 MHz
ROM:	64 kB
RAM:	128 kB
Text mode:	32 x 22
Graphical mode:	256 X 192
Colours:	8
Sound:	3 channel, 7 octaves
Storage:	Built-in 3" floppy disk drive
Price:	?

Connectors

Extension port (Z80) (8+46 edge)
Cassette tape
RF television
RS232/Midi Out
RGB
2nd disk drive
2 x Joystick
Parallel port (8-bit) (34 edge)

To be moved

Spectrum +2A/+3 PSU

From: Spectrum FAQ http://www.nvg.ntnu.no/sinclair/faq/pinouts.html

From Ian Collier mailto:[email protected]: This is what the end of the +2A/+3 PSU lead looks like (which is obviously a mirror image to what the power socket looks like):

    ---u---
  /         \
 / +5    -12 \
|      0      |
 \ +5    +12 /
  \   +12   /
    -------

The 5V line is rated at 2A, the +12V at 700mA (200mA for the +2A) and the -12V at 50mA.

ZX Spectrum +2A / +3 Video

From http://www.worldofspectrum.org/faq/reference/pinouts.htm

       RGB              Pin  Signal              Level
                        -------------------------------------------------
  --7--   --6--         1                        +12V
        |               2    GND                 0V
   3--  8  --1          3    Audio Out
 --     |     --        4    /Composite Sync     TTL
     /     \            5                        +12V 
    5   |   4           6    Green               Analogue 1.67V p-p
   /    2    \          7    Red                 Analogue 1.67V p-p
        |               8    Blue                Analogue 1.67V p-p

Contributions

Joakim Ögren

Sources

Planet Sinclair: ZX Spectrum specifications