Meridian Audio LD100/LD100U Musical Instrument User Manual


 
The Faroudja System LD100 digital scan converter
is a precision video instrument used to convert
NTSC Composite, Y/C, or 525 line RGB or
Component interlaced signals into 525 line progres-
sive outputs. Using the LD100 digital scan converter
will produce pictures with more details, remove
unwanted picture artifacts and, when used with pro-
jection systems, produce pictures of exceptional
quality, giving a “cinema-like” feeling.
Front panel features include Power, Input Select
(Video, Y/C, RGB and Component), Brightness,
Contrast, Color, Auto-Tint, Noise Reduction, Detail,
AGC and Freeze. Input switch settings are memo-
rized when the power is removed from the unit. This
allows the LD100 to be interfaced into a system
without the need to select the input when the sys-
tem is powered up. During power up, the AGC
switch is selected in the On mode with the Freeze
switch selected OFF. The remaining controls may be
left in factory preset or manually set by pulling out
and rotating the control until the desired level is
established.
Inputs to the LD100 include: Composite Video, Y/C
(S-VHS), RGB and Component (Y,R-Y,B-Y). The
Video input may be connected by either a BNC con-
nection or a video RCA type connection. These
inputs are looped internally so that the signal may
be used by other devices. A selectable 75 Ohm ter-
minator switch is provided and should be in the ON
position if the input loop is not used. The Y/C input
uses a standard 4 pin S-VHS connector. This input
is not available for a looped operation and is termi-
nated internally. The RGB and Component inputs
use BNC connectors. As with the video input, these
inputs are loopable to other devices. Selectable 75
Ohm terminations are provided. If the looped inputs
are used, these cables should be kept short, (under
6' in length) or a video distribution amplifier should
be used. This allows the LD100 to keep the highest
signal bandwidth possible without having the high
frequency being attenuated in a long cable.
Output from the LD100 is provided on six BNC con-
nectors as well as one 15 pin ‘D’ VGA connector.
The BNC outputs provided are Red, Green, Blue,
Horizontal Sync, Vertical Sync and Composite Sync.
Interface to monitors/projectors can be of a 4 or 5
wire connection. Note: 4 wire, meaning Red, Green,
Blue and Composite Sync or 5 wire, meaning Red,
Green, Blue, Horizontal Sync and Vertical Sync.
There is no sync present on the Green output. The
LD100 is capable of driving a monitor/projector
using the BNC outputs as well as a VGA monitor
using the 15 pin ‘D’ connector, at the same time.
The LD100 features a remote control interface that
will allow control of all line doubler functions. The
remote control uses a 25 pin female ‘D’ connector
located on the rear panel. See appendix A for fur-
ther information.
4
SYSTEM DESCRIPTION