Grass Valley LDK 7500 Technical Manual - Manual (Page 33)

Adjustments Technical Manual LDK 7500 + LDK 5490 Adapter 4-7
Video Monitoring Adjustment
Set-up
1. Switch off power. Place sync. monitoring board on service extender. Switch on power.
2. Switch on colour bar.
Viewfinder output level
3. Connect oscilloscope to X1-B45.
4. Adjust the potentiometer on the sync. monitoring board to obtain the correct output amplitude VF output signal.
Measure at: Adjust with: Required result: Correct:
X1-B45 ZR234 700mV
0%
10
90
100
0.2V 10µS
VB+700mV
5. Switch off power. Return sync. monitoring board to its position in the camera.