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Sony CDP-XB720 Service Manual page 4

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CD-TEXT TEST DISC
This unit is able to display the TEXT data (character information)
written in the CD on its fluorescent indicator tube.
The CD-TEXT TEST DISC (TGCS-313: J-2501-126-A) is used
for checking the display.
To check, perform the following procedure.
Procedure:
1. Turn ON the power and set the test disc.
2. Press the " button and play back the disc.
3. The following will be displayed on the fluorescent indicator tube.
Display : CD TEXT– – – –
4. Rotate the ≠ AMS ± knob to switch the track. The text
data of each track will be displayed.
Restrictions in CD-TEXT Display
In this unit, some special characters will not be displayed properly. These will be displayed as a space or a character resembling it. For details,
refer to "Table 2 : CD-TEXT DISC Recorded Contents and Display".
Table 1 : CD-TEXT TEST DISC TEXT Data Contents (TRACKS No. 1 to 41:Normal Characters)
TRACK
No.
1
1kHz/0dB/L&R
2
20Hz/0dB/L&R
3
40Hz/0dB/L&R
4
100Hz/0dB/L&R
5
200Hz/0dB/L&R
6
500Hz/0dB/L&R
7
1kHz/0dB/L&R
8
5kHz/0dB/L&R
9
7kHz/0dB/L&R
10
10kHz/0dB/L&R
11
16kHz/0dB/L&R
12
18kHz/0dB/L&R
13
20kHz/0dB/L&R
14
1kHz/0dB/L&R
15
1kHz/-1dB/L&R
16
1kHz/-3dB/L&R
17
1kHz/-6dB/L&R
18
1kHz/-10dB/L&R
19
1kHz/-20dB/L&R
20
1kHz/-60dB/L&R
21
1kHz/-80dB/L&R
NOTE : The contents of Track No. 1 to 41 are the same as those of the current TEST DISC-their titles are displayed.
However, only 8 digits are displayed, and the 9th digit onwards are displayed as "– – – – –".
Displayed Contents
TRACK
No.
22
1kHz/-90dB/L&R
23
Infinity Zero w/o emphasis//L&R
24
Infinity Zero with emphasis//L&R
25
400Hz+7kHz(4:1)/0dB/L&R
26
400Hz+7kHz(4:1)/-10dB/L&R
27
19kHz+20kHz(1:1)/0dB/L&R
28
19kHz+20kHz(1:1)/-10dB/L&R
29
100Hz/0dB/L*
30
1kHz/0dB/L*
31
10kHz/0dB/L*
32
20kHz/0dB/L*
33
100Hz/0dB/R*
34
1kHz/0dB/R*
35
10kHz/0dB/R*
36
20kHz/0dB/R*
37
100Hz Squer Wave//L&R
38
1kHz Squer Wave//L&R
39
1kHz w/emphasis/-0.37dB/L&R
40
5kHz w/emphasis/-4.53dB/L&R
41
16kHz w/emphasis/-9.04dB/L&R
– 4 –
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