Tektronix AVDC100 Service manual

Status LEDs
LED ENCODE mode DECODE mode BYPASS mode
VIDEO Off No video signal No video signal No video signal
Green Video + SDI locked Video + SDI locked Video + SDI locked
Yellow Video + SDI unlocked Video + SDI unlocked Video + SDI unlocked
Red (Not used) (Not used) (Not used)
AUDIO Off No AES signal No AES signal No AES signal
Green Audio OK Audio OK Audio OK
Yellow Low audio envelope Low audio envelope Low audio envelope
Red Low audio or no audio Low audio or no audio Low audio or no audio
DATA Green Data OK
Yellow WM sync adjustment
Red
Not used, LED forced off
in Encode mode No
WM sync detected
Not used, LED forced off
in Bypass mode
A/V DELAY Green A/V value updated
Yellow A/V value not updated
Red
Not used, LED forced off
in Encode mode Persistent
A/V problem
Not used, LED forced off
in Bypass mode
Sample Display Readouts
ENCODE WM = Watermark intensity level (1 – 3)
ACTIVE or PASSIVE
Watermark insertion active or inactive
WM = ACTIVE
ID: TEKSTUDIO
W1
ID = Source ID
DECODE AV = Audio/video measurement
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
D-1 n1
A
V
Flds
ID: TEKSTUDIO
-1
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
E = Too many errors to correct in audio
data
BYPASS Software version, date, and time
16:28
Bypass Mode
v1.0 03/28/01
www.tektronix.com
Reference
AVDC100
Audio/Video Delay Corrector
071-0874-00
*P071087400*
071087400
This document applies to firmware
version 1.0.

ã2001 Tektronix, Inc. All rights reserved. AVDC100 Audio/Video Delay Corrector Reference
Front-Panel Menus
*
**
*
Press the Select key
to select a setting Press
the arrow keys to
scroll through settings Asterisk
on the display indicates the current
menu setting
MODE
ENCODE
DECODE
BYPASS
STATUS
1) AES RECEIVER a) No Errors, or one of the following:
Validity Error
CRC Error
Parity Error
Unlocked
2) TIME CODE RECEIVER a) xx:xx:xx:xx (hours, minutes, seconds, and video frames
(30 frames per second)) / No LTC Time Code
3) SDI RECEIVER a) Locked / Unlocked
4) SDI DESERIALIZER a) Locked / Unlocked
b) 525 4:2:2
625 4:2:2
No Video
c) TRS Not Present / TRS Present
d) EDH Not Present / EDH Present
5) WATERMARK SIGNAL a) H:15 V:23 Gn 525
H = Pixel offset for start of watermark signal
V = TV line number for start of watermark signal
(23 for 525-line, 24 for 625-line)
G = Gain meter for watermark signal
525 or 625 = 525-line or 625-line video
6) AUDIO DISPLAY (Shows audio activity meter)
TEST
1) TOGGLE ON/OFF a) Encoder On / Off
b) Audio Delay On / Off
c) Zone Plate On / Off
2) ZONE PLATE a) Level 1 – 8
3) INITIATE TEST a) LEDs Normal
All Green
All Yellow
All Red
b) Display Pixels (Press Select key)
4) FIRMWARE UPGRADE a) Reboots Instrument Escape or Reboot
(Reboot opens the
Boot menu)
CONFIG
1) ENCODER a) Source ID Is: On / Off
b) Modify Source ID A – Z, 0 – 9, <sp> _
c) Watermark Encode Is Always On
If No WM Detected
d) Set WM Intensity To WM Level 1, 2, or 3
2) DECODER a) Delay Correction Automatic or Manual
b) Correction Range ±0 – 30 Fields
c) Default Audio Delay 0 – 120 Fields
d) Manual Delay 0 – 150 Fields
e) On Loss of WM Hold Last Value; Decay To Default
3) REMOTE CONTROL a) SNMP Access Read Only or Read + Write
b) Community String Is: (Shows name)
c) Modify Community String A – Z, 0 – 9, <sp> _
d) Trap Address Edit 0 – 9
4) SERIAL PORT a) Baud Rate 300, 1200, 2400, 4800
9600, 19200, 38400
b) Flow Control Software (Xon / Xoff)
None
5) NETWORK a) Config Mode Manual Mode DHCP Server
b) IP Address View or edit View only
c) Subnet Mask View or edit View only
d) Gateway View or edit View only
e) Show DHCP Server Not avail. View only
f) Show MAC Address (Shows Ethernet MAC address)
6) ALL SETTINGS a) Save Setup 1 – Setup 4
b) Restore Setup 1 – Setup 4, Factory
Boot Menu
1) NETWORK a) Config Mode Manual Mode DHCP Server
b) IP Address View or edit View only
c) Subnet Mask View of edit View only
d) Gateway View or edit View only
2) MAC ADDRESS (Shows MAC address)
3) VERSIONS a) Firmware X.X (Shows firmware version number)
b) Hardware X.X (Shows hardware version number)
c) Bootrom X.X (Shows Boot ROM version number)
4) UPDATE FIRMWARE Press ¿ to start (Performs firmware update, reboots instrument)
5) REBOOT Press ¿ to reboot (Exits boot menu by rebooting instrument)
(To access the Boot menu, use the Test menu, 4) Firmware Upgrade selection,
or hold down a menu button when you apply power to the instrument.)