Marshall Amplification ML-454-V2 Bedienungsanleitung

Broadcast A/V Division

ML-454-V2

Quad 4.5” Rack Mount Monitor with

3G-SDI, HDMI and Composite Inputs

User Manual

Table of Contents

2. Unpacking

3. Installation

4. Basic Operation

5. Menu Functions

6. Speciﬁcations

Warranty

1. Overview

ML-454-V2 Manual

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1. OVERVIEW

The ML-454-V2 provides four independent wide-screen displays in only 2RU rack height and very

slim 1.4” (35.8 mm) depth. Each display has inputs for 3GSDI, HDMI and standard composite

(CVBS) analog video sources. The SDI digital inputs provide active loop-through connections while

the composite input is self-terminating with passive loop-through.

Controls are conveniently placed on the front panel (computer not required). Menus are straight-

forward and intuitive. Front panel headphone jacks allow monitoring of embedded digital audio

(SDI and HDMI) as well as analog audio (for composite video AV input). On-screen three-color tally

borders operate from standard GPI connections (contact closure or open-collector pull-down) for

maximum compatibility with existing systems.

2. UNPACKING

Carefully unpack the ML-454-V2 monitor and verify the following items are included:

1. ML-454-V2 Monitor

2. 12 Volt Power supply with AC cord. ML-454PS

Inspect the unit for any physical damage that may have occurred during shipping. Should there be

any damage, immediately contact Marshall Electronics at (800) 800-6608. If you are not located

within the continental United States, call +1 (310) 333-0606.

3. INSTALLATION

The ML-454-V2 is designed to mount in a standard 19” equipment rack using the pre-installed

mounting ears. Once mounted, the monitor may be tilted to the ideal viewing position. Care should

be taken to allow sufﬁcient slack in cables attached to the monitor so as not to bind when the

monitor is tilted. Also, check that the ventilation holes are not obstructed by other equipment in

the rack.

CONNECTIONS, POWER AND INITIAL SETUP

Note: Each screen has its own individual complement of video input connections.

Power and TALLY connections go to all screens

1. Power Connector

Connect the 12V DC input to the power input connector. Power can be supplied from the included

power supply, or from a variety of DC sources supplying at least 4.0 Amps at 12 Volts. (Average

power consumption 2.0 Amps at 12 Volts)

2. TALLY Connector

The tally border in each monitor is controlled by grounding the appropriate pin on the Tally connector

as shown in the table. Caution: External power should never be applied to the Tally connector.

(The Tally connector has the same “footprint” as a VGA connector.)

Tally Green Border Red Border Yellow Border

Screen #1 123

Screen #2 678

Screen #3 11 12 13

Screen #4 510 15

GND 4, 9, 14

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Plug the included power supply into an AC power source (100 – 240 Volts @ 50/60 Hz). Attach the

power connector to the back of the monitor.

Connect the required cables for video signal input and output.

The monitor defaults to “ON” when power is connected. The Marshall name will ﬁrst appear then

the video will be automatically detected and displayed on the screen. If the video does not appear,

press the INPUT button on the front panel to select an active source. SDI and CVBS inputs have

active loop through connections. Active loop-through does not work if main power is removed from

the monitor. Front power buttons have no effect on loop-through operation.

4. BASIC OPERATION

When main power is ﬁrst applied to the ML-454-V2, the input selection defaults to the last used

source. To see other sources, press the Input button to cycle through three choices: HDMI, SDI and

AV (CVBS composite analog).

Headphone audio level may be quickly adjusted any time by pressing the and buttons.

The power button for each screen is located just above the headphone jack. The button lights up

green when the screen is ON.

To conﬁrm that main power is being supplied to the internal components, a red LED light for each

screen is visible through the ventilation holes on top.

FRONT PANEL CONTROLS

– Headphone Jack

INPUT – Select HDMI, SDI, AV sources

– Headphone Volume and Menu navigation

MENU – Open / Back / Close the main menu window

– Menu Navigation

F1 & F2 – Turn User Programmed Function On/Off

– Power On/Off

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5. MENU FUNCTIONS

When the Menu button is pressed, a screen similar to this picture appears showing ﬁve

Main Menu categories.

Use the arrow buttons to move to the desired category.

1. Video

Adjust Appearance: chroma saturation, brightness, etc.

Pic. Mode: Select between three Presets and User setting.

Standard: Settings are in their mid-range.

Mild: Contrast and Saturation are reduced.

User: Brightness, Contrast, Saturation and Sharpness can be adjusted individually.

Dynamic: Contrast is boosted.

Color Temp: Select 6500, 9300 or User.

6500: Display white balance approximates 6500K (standard).

9300: Display white balance approximates 9300K (cool).

User: Red, Green and Blue gains may be adjusted to achieve the desired white balance.

Tint: Used to correct issues with composite video sources. All colors are affected.

Tint is generally not applicable to digital video sources.

2. Functions

Selecting On-Screen Markers;

Aspect Ratio, Image Flip, Peaking Filter and other Assistance Tools

Center Marker: Places a cross marker in the exact center of the image.

Safety Marker: Creates a border to indicate a safe area for camera framing

Adjustable from 80% to 96% and 2.35 wide aspect.

Marker Color: Select the high contrast marker color according to different image. Color choices are:

Red, Green, Blue, Black and White.

Check Field: Use the to display a single primary color or no color (monochrome).

Peaking Filter: This is a tool to assist setting sharp focus on a video camera. When this mode is

ON, the picture will be monochrome with a red border around objects in the image. As the camera

lens is adjusted, the red border will be brighter or dimmer. Brighter = sharper focus.

Aspect Ratio: Select the displayed aspect ratio to ﬁt the source.

Full Screen: Picture is ﬁt to just meet the edges of the display area.

Pixel to Pixel: Image pixels are mapped 1:1 to display pixels. (Scaling off). In most cases, this

will have the appearance of expanding the image.

4:3: Video is ﬁt into a 4:3 window. This is a common setting for Standard Deﬁnition video.

16:9: Video is ﬁt into a 16:9 window. This is the standard aspect ratio for HD video.

Image Flip: Flip the displayed image to compensate for special lenses or mirrors.

Image Freeze: Holds the current image on screen until Freeze is turned off.

Zoom All: Expands the picture on the screen in all directions by tapping the button

Default setting is“0”.

U/D Zoom: Expands the picture on screen vertically using the buttons.

L/R Zoom: Expands the picture on the screen horizontally using the buttons.

Scan Mode: Adjustable items are Standard & OverScan.

Overscan: allows checking the picture out to the edges.

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3. OSD

On-Screen Display Functions (menu position, etc.)

OSD Horizontal Position: Adjust horizontal position of Menus

OSD Vertical Position: Adjust vertical position of Menus

OSD Menu Transparency: Adjust the menu background

OSD Timeout: Set the number of seconds menu items will remain on the screen.

Input Format OSD: Signal format/frame rate display

4. Setting

Choose menu language, factory reset and upgrade mode

Language: Select the On-screen language for menus and messages.

Backlight: Adjust the brightness of screen backlight. Compensates for ambient lighting

Factory Reset: Press the button to set the display back to its original (default) state.

USB Upgrade: Initiate ﬁrmware update from a computer attached to the USB port.

5. Function Presets

Program the user Function buttons

User buttons allow the quick selection of a function without entering the menu system

F1 & F2: Use the and buttons to choose a function from this list:

Center Marker

Safety Marker

Marker Color

Check Field

Peaking Filter

Aspect Ratio

Image Flip

Image Freeze

Scan Mode

6. SPECIFICATIONS

Panel size 4.46-inch TFT LCD

Resolution 1280 x RGB x 720

Backlight type LED, Adjustable Brightness

Dot pitch 0.0771mm x 0.0257mm

Aspect radio 16:9

Panel Bit Depth True 8-bits (not dithered)

Brightness (cd/m²) 500

Contrast 1000:1

Viewing angles 80°/80°(L/R) 80°/80°(U/D)

Inputs HDMI / 3GSDI / CVBS / Audio(L/R)

Outputs 3GSDI / CVBS Loop Out

AV PAL - 4.43 / NTSC - 3.58

HDMI

480i /480p /576i /576p (59.94/50)

720p (60/59.94/50/30/29.97/25/24/23.98)

1080i (60/59.94/50)

1080p (60/59.94/50/30/29.97/25/24/23.98)

3G-SDI

ITU-R BT.656 576i

SMPTE-125M 480i

SMPTE-274M 1080i (60/59.94/50)

1080p (30/29.97/25/24/23.98)

SMPTE-296M 720p (60/59.94/50/30/29/25/24/23.98)

SMPTE-424M 1080p (60/59.94/50)

Earphone jack Stereo 3.5mm

Input voltage DC: 10~24 V (Typical 12 V)

Power consumption 28 W (Typical)

Power Connector 5.5 mm x 2.1 mm locking coaxial

Dimensions 19.0” W x 3.3” H x 1.4” D

482.5mm W x 84mm H x 35.8mm D

Weight (main body) 3.53lbs, 1.6kg

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