Table of Contents
Advertisement
Encoder Board NTSC
I amplitude
9. Set I gain potentiometer ZR205 in its mid-position.
10. Connect MP7 on the encoder board to ground.
11. Adjust with the chroma potentiometer until the colour vector dots correspond with the indication marks on the
I-axis of the graticule.
Measure at:
Adjust with:
CVBS out
R4
Q amplitude
12. On the encoder board disconnect MP7 from ground and connect MP8 to ground.
13. Adjust with the Q gain potentiometer until the colour vector dots correspond with the indication marks on the
Q-axis of the graticule.
Measure at:
Adjust with:
CVBS out
ZR202
14. Disconnect MP8 from ground and check that the SMPTE colour bar signal is correct.
SMPTE bar shift
15. Adjust the SMPTE shift so that the PLUGE signal is within the red bar.
Measure at:
Adjust with:
CVBS out
ZR212
Adjustments
Required result:
Correct:
IRE
120
100
80
60
40
20
20
40
Required result:
Correct:
IRE
120
100
80
60
40
20
20
40
Required result:
Correct:
100
90
10
0%
Technical Manual LDK 20(S) - Studio Camera
0%
12.5%
R
I
MG
Q
5
YL
75 100
0
B
-5
75%
G
CY
100%
0%
12.5%
R
I
MG
Q
5
YL
75 100
0
B
-5
75%
G
CY
100%
>50mV
10µS
PLUGE signal
Red bar
4-45
Advertisement
Table of Contents
