Ross SRG-4400, User Manual

Page: 114 / 193

5–60 • Menu System SRG-4400 User Manual (Iss. 06)
PAL IPSCH, NTSC IPSCH
These menu lines allow the user to adjust the Sc-H settings relating to the Genlock video signal
present at the REF-LOOP BNCs on the rear panel. This setting ensures that the 4-frame (PAL) or
2-frame (NTSC) SC-to-H relationship of the incoming signal will be reliably determined.
To set either of these values, access to test points on the main module is required. Therefore, no
specific adjustment details will be outlined here.
These settings vary from unit to unit.
PAL HGenlockPoint, NTSC HGenlockPoint
These menu lines allow the user to set the value of the window used to align the H-timing system
with the REF LOOP signal, and thereby control Sc-H locking.
To set either of these values, access to test points on the main module is required, as well as
access to a special engineering sub-menu. Therefore, no specific adjustment details will be
outlined here.
These settings are unlikely to change significantly from unit to unit. The default value for both
PAL and NTSC is 0063.
PAL OPScH, NTSC OPScH
These menu lines allow the user to adjust the SC Phase of the video output relative to the
reference input. This setting is used to provide “co-timed” video outputs when they are set for a
video timing offset of 0°.
Specialized equipment is required in order for these settings to be determined. Therefore, no
specific adjustment details will be outlined here. These settings vary from unit to unit.
PAL SCPhase, NTSC SCPhase
These menu lines allow the user to adjust the Sc-H settings relating to the video outputs.
Specialized equipment is required in order for these settings to be determined. Therefore, no
specific adjustment details will be outlined here. These settings vary from unit to unit.
CompGain, Black#
These menu lines allow the user to adjust the Gain and DC settings of the respective video
outputs.
Each menu line displays the calibration values relating to the gain and d.c. settings of the relevant
video channel DAC. Gain values are typically in the range 0-30; d.c. values are typically in the
range 382-390.
Disclaimer
Most of these settings are determined during initial testing, configuration and alignment. They
should not normally require adjustment or re-configuration during service. In some cases,
specific test equipment or even custom apparatus is required to perform calibration and
configuration.
On no account should the user attempt to alter any of these settings without proper authorization
from Ross Video.
If problems are encountered, these settings can be re-instated. Contact Ross Video for further
instructions.