14-3. Block Diagram - Motorola R-20010 Maintenance Manual

7-10
33
KE YBOARD ROW
P/0
A~ 1 1 • 4 : _!K~EY!!!B~ OA ~ R~ D .!: C ~OL : _
_ _ _
==============~=
3-6
ADDRESS
BUFFER
U38. 39
I
I
PIA
U22
u'
II
I I
61
PROCESSOR
r:
1 0 U14
L__
25
CiiAiiAci'ER ROMOiSABCE
1MHZ
r. l
TIMING G ENERATOR
'I
I
I
I
I
I
1 MHZ
OPTION B DET
OPTION A DET
P/0 A14
12
14
OPTO DIR
BINARY MOD
15
AF BUS ENABLE
29
1 8
)
I
CHARACTER GEN Z-AXIS
21
CtiARACffii
LiNEi
44
22
G ENERATE RESET HORIZ CHAR SYNC 30
VERT CHAR SYNC
19
I
L _ _ _ _
_J
PROCESSOR BOARD (A14)
(RTC-1010A) 01-P22140E001
Figure 14-3. Block Diagram
14-5