VISTEK V1633/A & V1633/D
sdi audio multiplexer
HU-V1633/A&D
7
The significant items on the main board are described here:
FS 1
Input power fuse, 3A.
SW 1
Internal configuration switches, S1 at the top. See Section 3.8 for details.
Note that
U8
The PROM that contains the firmware for the programmable device. I the event
of upgrades in the field it is most likely that this is the device that will need to be
changed.
LK 2
Enables termination of the AES reference:
UP
= Terminated
DOWN = Hi-Z
LK 3
Enables termination of the video reference:
UP
= Hi-Z
DOWN = Terminated
Sub-Module
Fitted with either the Analogue I/P Module (130-2170) or the digital I/P module
(130-2180). Check for correct orientation before powering the unit.
2.8.2
Analogue I/P Module
SW 1
Set Maximum INPUT Level (MIL) for channel pair B
SW 2
Set Maximum INPUT Level (MIL) for channel pair A
RV 1
Calibration trim channel AL
RV 2
Calibration trim channel AR
RV 3
Calibration trim channel BL
RV 4
Calibration trim channel BR
2.8.3
Digital I/P Module
There are no adjustments on the digital I/P module
SW2-A
RV1-AL
RV2-AR
RV3-BL
RV4-BR
SW1-B
