Service manual

-
PC 1600
4. PC-1600 blo~ diagram
s
y
S
T
E
M
B
U
S
S
L
a
T
1
S
L
a
T
2
S
I
o
R
S
I
2
3
2
C
r-
-
-
-
-
~
r-
-
L-
-
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Z·80 BUS
HD61203 (5
1)
LCD
L
CD
C. DR IV EA
HD61102 T HD61102
LC D S. DR I VE
Leo s. DRIVE
I LA38041
32KB ROM
aKe RAM
GA TE ARRA
BX7269W
CONVERT
LH-5810
compatible
Keyboard
Buner
Cassette
,3
TC8576F
UART
3 .58 MHz
rDI-
CGC
I
Z·80
Interrupt
contro l
Timer
RS232C
Sy s tem bu.
ANA L OG IN
Memory
control
Main unit RAM
SLOTt
SLOT2
Main un it ROM
Ma in CPU internal block d i~ ram
F ig. 2
-,-
,2
L U578 13P
SUB·CPU
ON
LH IIF
I/ O contr ol
U AR T
ItC.
LH ·5803
.....
MAIN CPU
2
SC7852
.....
MAIN CPU
ON
AESET
KEYBOARD
MAIN CPU 2
LH·5803
1