Technicolor - Thomson LDK 20(S) technical manual B-Y phase, Burst phase

Encoder Board PAL

B-Y amplitude

11.On the encoder board disconnect MP7 from ground and connect MP8 to ground.

12.Adjust with the B-Y gain potentiometer until the colour vector dots correspond with the indication marks on the U-axis of the graticule.

Measure at:

CVBS out

Adjust with:

ZR202

Required result:

Correct:
%			VOLT
120
100	R	cy	0.7
80	g	MG
		V
60	75
	100	b	5
40	YL
		U	0
20	yl	B	-5
			0
20	G	mg
43	r	CY	0.3

13. Disconnect MP8 from ground.

R-Y / B-Y phase

14.Switch vectorscope from Standard to PAL mode.

15.If the vector dots are not superimposed on each other adjust the phase with L8.

Measure at:

CVBS out

Adjust with:

L8

Required result:

Correct:
%			VOLT
120
100	R	cy	0.7
80	g	MG
		V
60	75
	100	b	5
40	YL
		U	0
20	yl	B	-5
			0
20	G	mg
43	r	CY	0.3

Incorrect:
%			VOLT
120
100	R	cy	0.7
80	g	MG
		V
60	75
	100	b	5
40	YL
		U	0
20	yl	B	-5
			0
20	G	mg
43	r	CY	0.3

16.Switch vectorscope from PAL to Standard mode and check that the vector dots are exactly in the vectorscope boxes.

Measure at:

Adjust with:

Required result:

Correct:
%			VOLT
120
100	R	cy	0.7
80	g	MG
		V
60	75
	100	b	5
40	YL
		U	0
20	yl	B	-5
			0
20	G	mg
43	r	CY	0.3

BURST ADJUSTMENTS

Burst phase

17.Measure in second quadrant of vectorscope.

Adjust the input sensitivity potentiometer of the vectorscope so the burst vectors just touch the circle graticule.

18.Adjust the burst phase potentiometer for 90° phase output.

Measure at:

CVBS out

Adjust with:

ZR211

Adjustments Technical Manual LDK 20(S) - Studio Camera 4-39