Video Miscellaneous Board
Black indicator level
25.Use the controls at the rear of the camera to set the white indicator level for the monitoring output by navigating through the menu system to menu number 318 and setting the value to 85.
26.Connect oscilloscope terminated with 75 Ohm to the VF output of the camera.
27.Adjust the black level of the indicators of the VF output signal to the same level as the blanking.
Measure at:
VF output
Adjust with:
ZR47
Required result:
Correct: |
|
0.2V | 10µS |
100 |
|
90 |
|
10 |
|
0% |
|
| VB+714mV |
Incorrect: |
|
0.2V | 10µS |
100 |
|
90 |
|
10 |
|
0% |
|
| VB+714mV |
28.On connector B of the service extender remove the short circuits on the input to Video Processor 1 Board by disconnecting the jumpers fromB7 to B9
B11 to B13
B17 to B19
Reconnect | A7 to B7 |
| A9 to B9 |
| A11 to B11 |
| A13 to B13 |
| A17 to B17 |
| A19 to B19 on connector B of the service extender. |
Adjustments | Technical Manual LDK 20(S) - Studio Camera |