Technical data of the MZ-80B |
| MZ-80B General |
| CPU |
LH0080A ( Z 80A-CPU ) |
| Clock |
4 MHz |
| Memory |
IPL ROM 2K bytes
RAM 32K bytes ( dynamic RAM )
can be expanded to 64K bytes ( option )
CG-ROM 2K bytes
V-RAM 2K bytes |
| Display |
9" CRT ( green display )
8 x 8 dot matrix
1) Characters: 1000 ( 40 characters x 25 lines )
2) Characters: 2000 ( 80 characters x 25 lines )
1), 2): software change-over
Graphic display ( option )
320 x 200 dots
2 graphic areas
|
| Cassette |
Standard audio cassette tape
Data transfer speed 1800 bits/sec.
Data transfer system SHARP PWM
manual or automatic control |
| Sound output |
400 mW output max. ( 440Hz ) |
| Keys layout |
92 keys,
ASCII standard
10 numerical keys
function keys
cursor control keys
cassette tape deck control keys |
| Edit function |
cursor control
( up, down, right, left, home, clear home )
edit key, delete key |
| Clock function |
built in ( 3 counters used of the PIT 8253 ) |
| Power supply |
AC 220V 50Hz |
| Power consumption |
approx. 45W |
| Temperatures |
operating temperature 0 to 35 degrees Centigrade
storage temperature -15 to 60 degrees Centigrade |
| Humidity |
lower than 80% |
| Weight |
approx. 16 kg |
| Dimensions |
width 450 x height 270 x depth 520mm |
|
| CPU Board Section |
| CPU |
LH0080 ( Z80A-CPU ) 1 pc. |
| PIO |
LH0081A ( Z80A-PIO ) 1 pc. |
| ROM |
IPL 1 pc. ( 2K bytes )
Character generator; 1 pc. ( 2K bytes ) |
| RAM |
Standard;
16K dynamic RAM; 16 pcs. ( 32K bytes )
Video RAM; 1pc. ( 2K bytes ) |
| Programmable counter |
8253 1 pc. |
| Programmable peripheral interface |
8255 1 pc. |
| Other ICs |
41 pcs. |
|
| Power supply Section |
| Input |
AC 220V 50Hz |
| Output |
5V, -5V, 12V ( regulated )
12V ( unregulated ) |
|
| Display Section |
| I. General specifications |
| Size |
9" |
| Frequency |
60Hz ( vertical )
15.75kHz ( horizontal ) |
| Power source |
DC 12V, 1.1A ±10% |
| Picture tube |
E2728B31; 9" 90° deflection
explosion proof type
heater 12V, 75mA |
| IC |
2 pcs. |
| Transistor |
7 pcs. |
| Diodes |
13 pcs. |
| Sound output |
400mW max. ( 440Hz )
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 limit ) |
| 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 440Hz |
|
| Cassette Tape Recorder section |
| System |
PWM recording |
| Power source |
5V ±5%
12V ±5% ( regulated )
9.5~16.5V ( unregulated ) |
| Rated amperage |
wait 2mA
record 70mA ( TEAC test tape )
playback 7mA ( TEAC test tape ) |
| Semiconductors |
22 transistors
13 ICs
9 diodes
|
| Applied tape |
from C30 to C60 |
| Tape speed |
4.75cm/sec. |
| Track |
2-track monaural type |
| Motor |
electronic governor motor (
12V ) |
| Biasing |
DC system |
| Erasing |
DC system |
| Playback sensitivity |
667µs to 333µsec.
( standard ) |
| Working temperature |
-10°C to 40°C |
| Strage temperature |
-25°C to 65°C |
|
sharpmz@sharpmz.org
