Sony DSR-250, Service Manual

Page: 166 / 322

5-8
1-1-4. Precaution
1. Setting the Switch
Unless otherwise specified, set the switches as follows and perform
adjustments without loading cassette.
1.
MODE switch (PM-040 board) ............................. CAMERA
2. DIGITAL ZOOM (Menu display) ................................... OFF
3. STEADY SHOT (Menu display) ..................................... OFF
4. DISPLAY (Menu display) ................................. V-OUT/LCD
5. DISPLAY (SB-036 board) ................................................ ON
6. AUTO MODE (SB-036 board) ......................................... ON
7. ND FILTER (Lens block) ................................................ OFF
8. FOCUS switch (FC-074 board) ............................ MANUAL
9. BACK LIGHT (SB-036 board) ........................................ OFF
10. SPOT LIGHT (SB-036 board) ......................................... OFF
11. CUSTOM PRESET (CUSTOM PRESET MENU) ......... OFF
12. DIGITAL EFFECT (SW-343 board) ............................... OFF
13. ZEBRA (SB-036 board) .................................................. OFF
14. 16 : 9 WIDE (Menu display) ............................................ OFF
15. AUTO SHUTTER (Menu display) .................................. OFF
16. PROG.SCAN (Menu display) .......................................... OFF
17. SET UP (Menu display) ..................................................... 0%
2. Order of Adjustments
Basically carry out adjustments in the order given.
H
A=B
A B B A
Enlargement
V
0
±
0.1msec
Electronic beam scanning frame
CRT picture frame
B
A
Difference in level
Y
ello
w
Cy
an
Green
White
Magenta
Red
Blue
Y
ello
w
Cy
an
Green
White
Magenta
Red
Blue
Color bar chart standard picture frame
Fig. a
(Video output terminal
output waveform)
Fig. b (TV monitor picture)
Adjust the camera zoom and direction to
obtain the output waveform shown in Fig. a
and the TV monitor display shown in Fig. b.
Fig. 5-1-5.
3. Subjects
1) Color bar chart (Standard picture frame).
When performing adjustments using the color bar chart, adjust
the picture frame as shown in Fig. 5-1-5. (Standard picture
frame)
2) Clear chart (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) Flange back adjustment chart
Make the chart shown in Fig. 5-1-6. using A0 size (1189 mm
×
841 mm) black and white vellum paper.
White
Black
841mm
1189mm
Fig. 5-1-6.
Note:
Use matte vellum paper bigger than A0, and make sure the edges of
the black and white paper joined together are not rough.