Grass Valley 8941 - Manual (Page 15)

8941 Instruction Manual 15
Module Alignment
Output Gain Adjustment
Follow the steps listed to adjust the output gain:
1. Connect a window signal to the input; terminated in 75 Ω .
2. Connect an analog output to the analog waveform monitor; terminated
in 75
Ω .
3. Refer to Figure 7 and adjust OUTPUT GAIN (R20) for:
• 714 mV peak-to-peak for NTSC (blanking to peak white)
Note In NTSC, adjust for p-p value with or without setup. There will be a slight dif-
ference in amplitude (< 2 IRE) when switching between a signal with setup to
one without setup.
• 700 mV peak-to-peak for PAL (blanking to peak white)
Figure 7. Output Gain, R20 Location
OUTPUT GAIN, R20