Technicolor - Thomson LDK 20(S) technical manual Black Offset Level

Digital Video Processor

1.Place Digital Video Processor on service extender. Set master black level to 50. Check that individual R, G and B black levels are set to 50. Switch off test sawtooth.

Black Offset Level

2.Switch on colour bar.

3.Adjust black offset during the active line to the same as the clamp level.

Measure at: X51-21 (R)

Adjust with: ZR325 (R)

Required result: 0mV (R)

Correct:
0.2V	10µS
100
90
10
0%
	VA+1.40V

Clamp level

Measure at: X51-11 (G)

Adjust with: ZR525 (G)

Required result: 0mV (G)

Correct:
0.2V	10µS
100
90
10
0%
	VA+1.40V

Clamp level

Measure at: X51-22 (B)

Adjust with: ZR725 (B)

Required result: 0mV (B)

Correct:
0.2V	10µS
100
90
10
0%
	VA+1.40V

Clamp level

Adjustments Technical Manual LDK 20(S) - Studio Camera 4-11