Sharp MZ-80B Service Manual

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The MZ·80B system and expansion thereof are shown in the block diagram 0.1 Fig. 1. The inside of the dotted lines
is the constitution of the MZ-808, in which units enclosed in thick-line frames are optional ones. In the expansion
port, interface cards can be inserted up to six pieces. The devices outside the dotted lines are optional peripheral
devices and user's devices.
Figures 2 and 3 show the
front view and rear view of the MZ-80B, identifying the parts with names.
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MZ-80B
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I
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L
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CRT
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Display
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~ f
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Graphic
RAM
CG Rom
(RAM 11 8KBI
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'v---
(MZ-80GMKI
32KB
2KB
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Graphic
Universal
c!-
RAM 18KB
Interface
PTR, PTP, etc.
RAM
IMZ-SOI021
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32KB
V-RAM
+
Character
MODEM
2KS
~
RS-232C
Teletvpewriter
Boot Rom
~
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etc.
2KB
IEEE-4SS
1.-
IEEE-488 Standard
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"W Interface
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devices
CPU
°0
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System Bus
0.
00
ZSOA
f-'
x
N
w~
Printer
t
Printer
Interface
IMZ-SOP5')
FD Interface
1
Floppy
f-
(MZ-SOFIJ
Disk
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(MZ-SOFB/FBKI
Key Board
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HD
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;<-
Interface
Hard Disk
Sound
Ir-
Cassette
r
f-
MCR
l~
Mark Card
Interface
Reader
Timer
1.1-
Calor
Color Display
Intelligent
Interface
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Terminal
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Color
Display
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Fig_ 1 MZ-80B System and Expansion
o Options
D Future Development
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Sharp MZ-80B Specifications

General

Brand	Sharp
Model	MZ-80B
Category	Desktop
Language	English