Technical data of the MZ-80K |
| General |
| CPU |
Z-80 |
| Clocking rate |
2 MHz |
| Memory |
Monitor ROM 4K bytes
RAM 20K bytes ( dynamic RAM )
Memory extension 48K bytes ( max. )
CG-ROM 2K bytes
V-RAM 1K bytes |
| Display |
10" CRT ( black / white display )
8 x 8 dot matrix
Characters: 1000 ( 40 characters x 25 lines ) |
| Cassette |
Standard audio cassette tape
Data transfer speed 1200 bits/sec.
Data transfer system SHARP PWM |
| Clock function |
built in ( 2 counters used of the PIT 8253 ) |
| Music function |
built in ( 1 counter used of the PIT 8253 ) |
| Sound output |
1 generator of the 8253; 400 mW output max. |
| Keys layout |
Number; 78 keys,
ASCII standard ( alphabet capital letter, figures),
small letter, graphic |
| Edit function |
cursor control
( up, down, right, left, home, clear home )
edit key, delete key |
| Power supply |
AC 220V ±10%, 50Hz
AC 240V ±10%, 50Hz ( for UK ) |
| Power consumption |
approx. 45W |
| Temperatures |
operating temperature 0 to 35 degrees Centigrade
storage temperature -15 to 60 degrees Centigrade |
| Humidity |
lower than 80% during operation |
| Dimensions |
width 410 x height 270 x depth 470mm |
| Weight |
approx. 13 kg |
|
| CPU Board Section ( DCPU-0006PAZZ ) |
| CPU |
Z-80; 1 pc. |
| ROM |
Monitor; 1 pc. ( 4K bytes )
Character generator; 1 pc. ( 2K bytes ) |
| RAM |
Standard;
16K dynamic RAM; 8 pcs. ( 16K bytes )
4K dynamic RAM; 8 pcs. ( 4K bytes )
Video RAM; 2 pcs. ( 1K bytes ) |
| Programmable counter |
8253 1 pc. |
| Programmable peripheral interface |
8255 1 pc. |
| Other ICs |
53 pcs. |
|
| Power supply Section ( DBOXD0004PAZZ ), ( DBOX0005PAZZ ---- for
UK ) |
| Input |
AC 220V ±10%, 50Hz
AC 240V ±10%, 50Hz ( for UK ) |
| Output |
DC 12V, 1.6A max.
DC 5V, 1.6A max.
DC -5V, 0.2A max. |
|
| Display Section ( DUTT0004PAZZ ) |
| I. General specifications |
| Size |
10" |
| Frequency |
60Hz ( vertical )
15.75kHz ( horizontal ) |
| Power source |
DC 12V, 1.1A ±10% |
| Picture tube |
quick start type ( 3 sec. )
240NB4; 10" 90° deflection
explosion proof type
heater 12V, 75mA |
| IC |
2 pcs. |
| Transistor |
5 pcs. |
| Diodes |
9 pcs. |
| Sound output |
400mW max. ( 400Hz )
speaker 8cm, round dynamic type ( 32Ohms ) |
| Control knobs |
volume, V-Hold, contrast, H-Hold, brightness,
focus |
| Working temperature |
-10°C to 50°C |
| II. Electrical specifications |
| Video output |
40Vpp standard ( 35Vpp limit ) |
| Resolution |
Horizontal
|
|
|
|
This pattern must be well-focused in the middle
of the screen. |
|
| Non-linearity distortion |
horizontal ±8% ( ±14% max.
)
vertical ±8% ( ±12% max. ) |
| Geometrical distortion |
Pincushion dist. 1% ( 2% max. )
Barrel dist. 1% ( 2% max. )
Trapezoidal dist. 1% ( 2% max. )
Parallelogram dist. 1° ( 2.5° max. ) |
|
High voltage
|
zero beam 11kV ( 10kV min., 12kV max. ) |
| Power supply |
DC 12V, 1.05A ( 1.2A max. ) |
| Working range |
12V ±10% |
| Scan size |
horizontal ±10% ( ±15% max.
)
vertical ±10% ( ±15% max. ) |
| Horizontal lock-in range |
±300Hz ( ±100Hz ) |
| Vertical lock-in range |
-12Hz ( -6Hz limit ) |
| Audio frequency characteristic |
400Hz ( 0dB )
-10dB ±4dB at 100Hz
-12dB ±4dB at 10kHz |
| Sound maximum output |
400mW at 400Hz ( 350mW min. ) |
|
| Cassette Tape Recorder Section ( KTRC-0004PAZZ
) |
| System |
PWM recording |
| Power source |
5V ±0.25% ( rated ) |
| Rated amperage |
wait 2mA
record 70mA ( TEAC test tape )
playback 7mA ( TEAC test tape ) |
| Semiconductors |
4 transistors
1 IC
4 diodes
|
| Applied tape |
from C30 to C120 |
| Tape speed |
4.75cm/sec. |
| Track |
2-track monaural type |
| Motor |
electronic governor motor (
12V ) |
| Biasing |
DC system |
| Erasing |
DC system |
| Playback sensitivity |
1ms to 500µsec. ( standard
) |
| Input level |
below 0.4V ( "L"
)
over 2.0V ( "H" ) |
| Input impedance |
over 10kOhms ( record jack
) |
| Output level |
below 0.4V ( "L"
)
over 2.0V ( "H" ) |
| Working temperature |
-10°C to 50°C |
| Strage temperature |
-25°C to 70°C |
|
sharpmz@sharpmz.org
