Smpte alarm, Module alignment, Alignment equipment – Grass Valley 8941 User Manual
Page 13
8941 Instruction Manual
13
Module Alignment
SMPTE Alarm
Note
The SMPTE alarm can function only if the Frame Controller or 8900NET
module is installed in the frame (
).
for the SMPTE alarm functions activated by the 8941.
Module Alignment
This section contains:
•
Alignment Equipment
•
EQ Warning Adjustment
•
Output Gain Adjustment
Alignment Equipment
The 8941 module is fully aligned at the factory and normally requires no
adjustment in the field. If adjustments are necessary, they should be per-
formed only by qualified technicians using, at a minimum, the following
equipment (or equivalents):
•
270 Mb/s serial digital video test signal source with pathological test
signal and EDH
•
Tektronix WFM601 Waveform Monitor (or equivalent)
•
Analog Waveform Monitor
•
NTSC (525): Tektronix 1780 (or equivalent)
•
PAL (625): Tektronix 1781 (or equivalent)
•
300 meters Belden 8281 cable (or equivalent)
Table 3. SMPTE Alarm
Function
Alarm
No + 5V, +12V, or –12V
Full alarm
No video (if enabled)
Pulsing alarm
EQ warning (if enabled)
Pulsing alarm
Missing EAV or SAV
Pulsing alarm