Operating instructions

GUIDE TO INSTALLATION AND OPERATION PRELIMINARY
12 | UVP-101i
4 Description of Operating Functions
The operating functions of the UVP-101i are described in the following paragraphs. In all cases reference is
made to the location in the menu where the described function can be controlled. The functions are
presented in the order of their appearance in the menu tree.
4.1 Video Input Selection [MENU: INP]
The UVP-101i supports two types of video input: composite analog (ANA) and serial digital (SDI). Since both
types of video input can be present and valid at the same time, a manual selection (via the menu or remote
control) allows the user to select the desired input.
Format detection for the incoming SDI signal is automatic, and no user controls are provided. There are a
number of options available to the user for the analog input; these are found in the ICMP menu (section 4.2).
4.2 Composite Input Processing Functions [MENU: ICMP]
Several processing options are available for the composite analog input, as follows:
4.2.1 Input Format Detection [MENU: ICMP
→
FRMT]
The UVP-101i supports two modes of analog input format detection: automatic and forced. These modes can
be set at the card edge or by remote control.
Automatic Format Detection
The analog input module is able to automatically detect the input format (NTSC or PAL) and report it (card
edge LED and remote control). It also detects black and white signals (B&W) and configures the decoder
accordingly. When B&W signals are detected, the card-edge B&W LED will turn ON. Select AUTO to enable
the automatic format detection mode.
Forced Input Format Selection
This mode allows the user to select one of the supported input formats. The available options are NTSC,
PAL, B&W5 (525-line monochrome) and B&W6 (625-line monochrome). While in this mode of operation, the
UVP-101i remains configured for that format at all times regardless of the actual input signal’s format. If the
input signal’s format does not match the forced selection, the ERR LED will turn on. NOTE: in VCR mode, a
format mismatch is not always detected.
4.2.2 Analog Video Source Types [MENU: ICMP
→
SRC]
To simplify the controls for the users when the analog video input is used, the UVP-101i is pre-programmed
for 3 operational modes corresponding to the the most common source types. The STUDIO source type is
used for high quality sources, SATELLITE for satellite sources, and VCR for unstable sources.
Selecting a source type affects the Automatic Gain Control (AGC), the Time Base Correction (TBC) and the
output phasing adjustments, as follows:
Satellite
In this mode, the TBC is OFF and the AGC is ON. If there is a valid external reference, the output phasing
(V, H and fine H) is set with respect to the reference timing. If there is no reference, the output is free
running with respect to the input and there are no output phasing adjustments.
The automatic gain control accepts a –10 dB to +3 dB input level on the analog input based on 75%
modulation. The AGC is based on the sync level and affects the overall gain.