Tektronix AVDC100 Reference

Status LEDs
LED ENCODE mode
VIDEO Off No video signal
Green Video + SDI locked
Yellow Video + SDI unlocked
Red (Not used)
AUDIO Off No AES signal
Green Audio OK
Yellow Low audio envelope
Red Low audio or no audio
DATA Green Not used, LED forced off
Yellow in Encode mode
Red
A/V DELAY Green Not used, LED forced off
Yellow in Encode mode
Red
Sample Display Readouts
ENCODE
WM = W1
ID: TEKSTUDIO
DECODE
AV -1 Flds D-1
ID: TEKSTUDIO
Alternate messages for A/V delay display:
?loAud = Low audio volume
?loCor = Low audio correlation
?loEnv = Low audio envelope variation
?noDat = No audio watermark data
?noWM = Recovering from no watermark
?nSync = No watermark sync pattern
?stall = Recovering from A/V
measurement stall
?wait = Waiting for data
?wrAud = Recovering from wrong audio
AV Stalled = Excessive loCor, loEnv,
or noDat condition
No Watermark = Excessive nSync
Wrong Audio? = Excessive loCor
BYPASS
Bypass Mode
v1.0 03/28/01
www.tektronix.com
DECODE mode BYPASS mode
No video signal No video signal
Video + SDI locked Video + SDI locked
Video + SDI unlocked Video + SDI unlocked
(Not used) (Not used)
No AES signal No AES signal
Audio OK Audio OK
Low audio envelope Low audio envelope
Low audio or no audio Low audio or no audio
Data OK Not used, LED forced off
WM sync adjustment in Bypass mode
No WM sync detected
A/V value updated Not used, LED forced off
A/V value not updated in Bypass mode
Persistent A/V problem
WM = Watermark intensity level (1 – 3)
ACTIVE
ACTIVE or PASSIVE
Watermark insertion active or inactive
ID = Source ID
AV = Audio/video measurement
n 1
Note: When the A/V delay measurement
number (in fields) equals the dynamic or
fixed delay number, the A/V delay is
properly compensated.
+30 to –150 = A/V delay in video fields
Positive number = uncorrectable delay
D or F
D = Dynamic Delay (0 – 120)
F = Fixed Delay (0 – 150)
n = Watermark gain meter
0 – 9 or E
0 – 9 = Relative number of correctable
errors detected in audio data
E = Too many errors to correct in audio
data
Software version, date, and time
16:28
Reference
AVDC100
Audio/Video Delay Corrector
071-0874-00
This document applies to firmware
version 1.0.
*P071087400*
071087400