Radio Shack TRS-80 Service Manual page 12
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Also See for TRS-80:
- Reference manual (274 pages) ,
- User manual (236 pages) ,
- Service manual (199 pages)
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~
TO
EXTERNAL
DISKS
FLOPPY
DISK
CONTROLLER
(optional)
DISK
#0
(optional)
DISK #1
(optional)
RS-232
1/0
LINE
PRINTER
PORT
Z-80
1/0
BUS
4K or 14K ROM
4K, 16K, 32K, or 48K RAM
REAL TIME CLOCK
UPPER/LOWER CASE VIDEO
500/1500 BAUD CASSETTE INT.
KEYBOARD INTERFACE
LINE PRINTER INTERFACE
1/0
BUS INTERFACE
FIGURE 1. TRS-80 MODEL Ill BLOCK DIAGRAM
POWER
SUPPLY
BRIGHTNESS
AND
CONTRAST
POWER
I
r
l
POWER
SUPPLY
(optional)
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