Precaution - Sony EVI-HD7V Service Manual

2-1-4. Precaution

1. Adjusting Procedure
Adjust in the given order.
Color-bar chart standard picture trame
H
A=B
A B
Fig. a. (Video output terminal
output wavefom)
2. Subject
1) Color-bar chart (Standard picture frame)
Adjust the picture frame as shown in fi gure if adjust-
ments are performed using the color-bar chart.
2) White pattern (Standard picture frame)
Remove the color-bar chart from the pattern box, and
insert a clear chart in its place. (Do not perform zoom
operations during this time.)
3) Chart for fl ange back adjustment
Combine a white A0 size (1189 mm x 841 mm) paper
to a black one, and make the chart shown in fi gure.
EVI-HD7V
0 ? 0.1 msec
V
B A
Enlargement
Difference in level
A B
Adjust the camera zoom and direction to obtain the output wavefom
shown in Fig. a and the TV monitor display shown in Fig. b.
Fig. b. (TV monitor picture)
Black
1189mm
n
Use the non-refl ecting and non-glazing vellum paper whose
size is more than A0, and make the boundary between
white and black to be smoothly fl at.
Electronic beam
scanning frame
CRT picture frame
White
841mm
2-5