Radio Shack TRS-80 Model 100 - Page 7

S"
System
Overview
i.
Specifications
(1)
Main Components
(a) Keyboard
71
keys (9x8
matrix)
Alphabet
keys
2 7
Number keys
10
Picture-control
keys
7
Function
keys
8
Special
symbol
keys
8
Mode
keys
5
Other
special-use
keys ......
6
LCD display
Display
Panel
. .
.
240 x 64
Full-Dot
matrix
1/32
duty
1/6.66
bias
Dot
Pitch
0.8x0.8mm
Dot
Size
0.73
x 0.73 mm
Effective
Display
Area
. .
.
191.2
x
50.4
mm
(b)
(c)
(d)
Case
Dimensions
....
300
Material
,
. .
. . ABS
Operation Batteries
Batteries
....
(W)
x 46.5
(L) x 215
(H)
mm
Operation
time
(e)
.
Four
alkali-manganese
batteries
(AM-3)
. 5
days
(at 4
hours/day)
20 days
(at 1
hour/day)
(note:
with I/O
disconnected)
Memory Protection
Battery
(on main
PWB)
Battery
....
Protection
time
Re
char
ere method
Rechargeable
Battery
(3-51FT)
About
40 days
(8
KB)
About
10 days
(32
KB)
Trickle
charge
by AC
adaptor,
or
operation
batteries