Videotek TVM9100PKG - Page 216

Alarm Descriptions
192 TVM Series Installation and Operation Handbook
Copyright © 2008, Harris Corporation
CRC HD
The CRC HD alarm occurs when the internally calculated CRC value is different from
the received CRC value (High definition only).
CRC Alarms
The following information is displayed when the CRC display is ON and an SD format
is detected:
Display Description
Time since Reset 00:00:00 Hr:min:sec, elapsed time since last reset
FF CRC Seconds value Full field CRC error in seconds
CRC Seconds value Active Picture CRC error in seconds
F1 AP CRC value CRC value (Check Sum) for active
picture, field one
AP
F2 AP CRC value CRC value (Check Sum) for active
picture, field two
Embedded Audio value Detects how many groups of audio are
available
Ancillary Data Present Detects other ancillary information
Format Errors Detects a format error
The following information is displayed when the CRC display is ON and an HD format
is detected:
Display Description
Time since Reset 00:00:00 Hr:min:sec, elapsed time since last reset
CRC Error Free value Length of time in seconds CRC is error free
CHROMA -
Embedded Audio value Detects how many groups of audio are
available
Ancillary Data Present Detects other ancillary Chroma information
LUMA -
Ancillary Data Present Detects ancillary Luma information
Format Errors Y* C* Detects a format error
*NOTE: Y=Luma and C=Chroma
The following are CRC Window Format Error types, which are further described in
Table 5-2, and are displayed under FORMAT ERRORS when they are detected:
• SAV PLACED INCORRECTLY (sav)
• LINE LENGTH ERROR (line length)
• FIELD LENGTH ERROR (field length)
• RESERVED VALUES USED IMPROPERLY (reserved values)
• ANC DATA CHECKSUM ERROR (anc checksum)
• ANC DATA PARITY ERROR (anc parity)