Tandy 1400LT - Block Diagram

I I-W
"IP
1 ~~
CONTROL
FLOPPY
DISK
CONTROL
CIRCUIT
CLOCK
CONTROL
BLOCK DIAGRAM
ACOUSTIC DIRECT (5g1NcH) AC
COUPLER MODEM RS-232C LPT ENHANCED KEYBOARD
A
ADAPTER
I
I
SERIAL PARALLEL
PORT PORT
/7
I
F
C
A0 SYSTEH BUS
"
I
CO- CPU BUS DHA INT TIMER PI0
CPU
7.16/ CONTROL CONTROL CONTROL
A A A A A
SPEAKER
\ SPEAKER
CONTROL
CPU BUS
+k$-pjJ CONTROL +5v4q1
Figure 4-2. Block Diagram