Radio Shack TRS-80 Service Manual page 161

5.5 CRT DISPLAY
5.5.1 Specifications
The supply voltage is 12.000 DC, + - 0.1 OV, from a regulated power supply. The room temperature is 25 degrees C.
Power Input (1 K ~ 30uA), 12V
Input Level
Horizontal (Positive-going Sync)
Vertical (Negative-going Sync)
Video (Positive-White)
Video Bandwidth (10Hz - 12MHz)
Horizontal Retrace
Vertical Retrace
Scanning Frequency
Horizontal
Vertical
Resolution at Center
Resolution at Corner
Geometric Distortion
Pin/Barrel distortion on top/bottom
Trapezoidal Distortion top/bottom
Parellogram Distortion
Raster Tilt
Linearity
Vertical Size
Video (24 rows)
Horizontal Size
Video (80 characters/Row)
on Sides
left/right
Unit
(A)
(V)
(V)
(V)
(dB)
(1-'8ec)
(I-'Sec)
(Hz)
(Hz)
(Lines)
(Lines)
(Inch)
(Inch)
(Inch)
(Inch)
(Inch)
(Degree)
(%)
(Inch)
(Inch)
169
Nominal
0.85
8.2
700
15,840
4.5
6
Limit
1.0
TTL Compatible
TTL Compatible
TTL Compatible
+/--
3
9.5
1,000
+/-500
47 - 63
800
680
+/-0.05
+/-0.038
0.150
0.100
0.100
+! -- 1.0
+
-10
+ -0.20
+ /-0.20