Contents
Personal Computer Model Z-350
BACKUP, INIT, COPY, DEBUG, Killall
Timer
Memory
Video
Slot Slot2
Refer to the page TIN Circuit Diagram
LSI, 1C Cmosic
SFDI/F
Symbol
Preset
Sdisp
Change Disp
Base
Basic Area RAM
System
User
MZ-1D07
MZ3500 System configuration of Model
MS1 = D MSO = 0 L
Software Memory Configuration
Timing of Reset Signal
ROM-IPL
SD1 System Loading & CP/M
Ffff
Bank Select
MAO
Operational description
SD3 RAM based Basic
Bank
ROM
Main Memory Mapper
Block diagram Relation between MMR main memory
This paragraph discusses main CPU I/O
Main CPU and I/O port
Table below describes address map
Main CPU \m
0001
MZ3500
Sub CPU and I/O port
To Reset
Memory mapper MMRSP6102R-001 Block diagram
Address BUS
Coab
RAS ROW Address Select Line Address Select Signal
MZ3500 Memory mapper MMR SP6102R-001 signal description
Srdy
Pin No
RO1B
IN/OUT
RO2B
1 1 1 1 0 KI1 Dl Do 17 D6 D5
A7 A6 A5A4A3A2AlAO H E X Uhus 1 O
D2 Dl 1 1 1 1 1 0 FE do D4 D3
1 1 1 1 1 1 FF 14 I N D3
MZ3500 Memory ROMIPL, RAMCOM, S-RAM select circuit
CRT
Specification
Asci
Summary of video display specification
Blue
Dot pitch
Dot color designated by
Graphic dot
KA7
CH AT
CH AI +,! AT A r + + G
Ascii CG
#1 FFF
Video RAM Structure of Vram
#07FFA
Structure of character Vram When read/write from GDC
#0000
8bit
Read/write by Z-80 via the GDC 640 x 200 dots display mode
FV = 60 Hz
16K
Setup of GCD master/slave
640 x 400 bits display mode FH = 20.92 kHz FV = 47.3 Hz
Master/slave setup by combination
O signal switching
Graphic V-RAM Address
Crtc block diagram
Page
Master slice LSI CSP-1 SP6102C 002 signal description
» CK
CSP-1 Block Diagram
CSH
HSY2 2BLK2
LSI CSP-2 SP6012C-003 Signal Description
3r00
CSP 2 Block Diagram
DSP2 OUT
CAS OUT
GDC Graphic display controller UPD7220 signal description
NK-CLC
AD15ILC2
AT~BTI
CSR-1MAGE
Structure
CG Address Select Circuit
Circuit description
Vsync
Blsc
Character Vram select circuit
Read/write from the Z-80 to V-RAM
Set GDC command code
Csrw C 49H -COMMAND Code
Return when all parameters were sent
Write C 23H Command Code Vecte C 6CH Command Code
Fifo Empty?
Explanation
60H
VECTE. Dot address is structured on the screen
Following manner Dot display program example-1
P4 88H P5 HH
I T E C 23H
Kind of line solid line
Outline
Floppy disk
TJ ILJ n
Ci D ci Ici
VnVn n nV nnn7
Data
MZ3500 MFD interface block diagram
22 «- o Window
FDC UPD765
UPD765 signal description
MZ350C
Trigger motor on of the timer 555 Selects FDD
Port used in the MFD interface is as follows
MFM recording method
Media detection
Controls during read, write, seek, and re- calibrate
3500 Precompensate Circuit
Control during seek and recalibration
Purpose String of data Pulses from the FDD Data window
VFO circuit
Filter Phase Detector Amplifier Window
VFO circuit configuration
BQA
MFM Mode
FM mode timing chart
\\\\
Aload
Side =
3DSC
\128
76 iy 7 EH 77 / FFH
Track 10 sector
Indicates the byte position From the top of directory
B144 6145 B146 B147 39 B148 B149 B150 B151
Ii Patat
39 B74 B75
1015
Data transmission format
General specification
MZS500
Example 7-bits, even parity, 1 stop bit
Start
AC controls
OFF
KTS
MZ3500 Data output control
8251 AC
RXEN,UTR , T X E N
3SOO
9 6.3
200
256
128
«--N
Wl -»
8253 OUT
8253
AA3
Printer interfacing circuit
DAT
DS7
Output
General description of the parallel interface
Data transfer timing
I/O port map
Read Hold
Clock circuit Schematic
Write Hold SET
DIN
LSB MSB
MZ3500 PD1990AC Block diagram
» GETE1 J
Mmmil
S I C
3500
GP I/O
SFD 1/F
Dipswa
SW2 SW1 On on CE332P OFF on MZ1P02 On OFF IO2824 OFF OFF
SEC
FD2
\f Canbe in either state
Functions
Block diagram
Description of each block
+5V
Switching regulator
Timing chart
Alarm generation circuit
At rrn
Specification of keyboard control
Key
2s 2s22 21
Key search timing
Key
Strobe
22.5/-s
132.5
Protocol Key to sub CPU
Keyboard controller basic flow
XTAL1 XTAL2 Reset INT
Keyboard controller signal description
PIN
ALE DBO DB7 GND
On OFF
Sub-CPU side
Procedure
CRT inter face test
Shared RAM
Abnormal
S C I I 00-FF
1 5 c * O DR O.7
Abnormal test ending
Ready O.H
ROM-IPL Main CPU Checker Flow Chart 1/2
100
Main CPU Checker Flow Chart M?
M7*500
101
Keyboard test
Keyboard controller ROM test
IPL Flow Chart
SEEK, Read Error
Jump \ Boot Address System
Error
Load Iocs SEEK& Read
105
SUB CPU IPL Flow Chart
R R R R F1
LJ LJ LJ LJ LJ LJ LJ
U J l J J L i J L L j l J J L l J L L l
LU LU U LJ LlJ LJ U U
AIO
IwC
RoB
MZ-35OO Parts Guide LI
LED PWB
No Parts Code
S C R I P T I O N
IE--or Ooss-zw
Parts Code
MZ-3500
N T K
Qcnw
S C R I P T I O N
Connector
NO. Parts Code
MZ-3500
Parts Code
A a N a D
NEW
VH S N 7 4 0 6 N
Mark Rank
Part S C R I P T I O N
Coos
M2-3500
J9, MZ1K02,1K03,1K04,1K05 Key unit
LSI RAM
SOC
LA a
NO. Parts Code
D e
Tin
N a a
Parts Code
MZ-3500
Sharp Corporation