Gefen GTV-AUDDEC-N User manual

www.gefentv.com
4x1 HD Switcher
w/ Audio Decoding
GTV-AUDDEC-N
User Manual

ASKING FOR ASSISTANCE
Rev A2
Technical Support:
Telephone [phone]
[phone]
Fax [phone]
Technical Support Hours:
8:00 AM to 5:00 PM Monday through Friday, Pacific Time
Write To:
Gefen, LLC
c/o Customer Service
20600 Nordhoff St
Chatsworth, CA 91311
[email protected]
www.gefentv.com
Notice
Gefen, LLC reserves the right to make changes in the hardware, packaging, and
any accompanying documentation without prior written notice.
4x1 HD Switcher w/ Audio Decoding is a trademark of Gefen, LLC
HDMI, the logo, and High-Definition Multimedia Interface are
trademarks or registered trademarks of HDMI Licensing in the United States and
other countries.
Manufactured under license from Dolby Laboratories.
Dolby, Pro Logic, and the double-D symbol
are registered trademarks of Dolby Laboratories.
© 2011 Gefen, LLC. All rights reserved.
All trademarks are the property of their respective owners.

CONTENTS
1 Introduction
2 Operation Notes
3 Features
4 Front Panel Layout
5 Front Panel Descriptions
6 Back Panel Layout
7 Back Panel Descriptions
8 IR Remote Layout and Descriptions
10 IR Remote Installation
11 IR Remote Configuration
12 Connecting the 4x1 HD Switcher w/ Audio Decoding
12 Wiring Diagram
13 Operating the 4x1 HD Switcher w/ Audio Decoding
13 Status Screen
13 Standby Mode and Power the Switcher
15 Adjusting the Volume
16 Changing the Audio Processing Mode
16 Accessing the Menu System
17 Menu System
17 Setting the Speaker Size
19 Setting the Speaker Level
21 Setting the Speaker Distance
23 Adjusting the Tone Control
25 Saving Audio Processing Favorites
30 Dynamic Range Compression
32 Audio Enhancement Modes
34 Setting the Unit of Measure
36 Setting the EDID Mode
38 Setting the IR Channel
40 Resetting the Switcher to Factory Settings
42 RS-232 Serial Control
43 RS-232 Serial Commands
69 Menu System Summary
69 Main Menu
71 Speaker Size Menu
72 Speaker Level Menu
74 Speaker Distance Menu
76 Tone Control Menu
77 Audio Setup Menu
79 Misc Setup Menu
81 Specifications
82 Warranty

1
Congratulations on your purchase of the 4x1 HD Switcher w/ Audio Decoding.
Your complete satisfaction is very important to us.
Gefen TV
Gefen TV is a unique product line catering to the growing needs for innovative
home theater solutions. We specialize in total integration for your home theater,
while also focusing on going above and beyond customer expectations to ensure
you get the most from your hardware. We invite you to explore our distinct
product line and hope that you find your solutions. Don’t see what you are looking
for here? Please call us so we can better assist you with your particular needs.
The Gefen TV 4x1 HD Switcher w/ Audio Decoding
The GefenTV 4x1 HD Switcher w/ Audio Decoding is a must-have preamp for
anyone wanting to create surround sound audio using multiple audio/video
inputs. It offers an easy-to-use alternative to over-complicated Home Theater
Receivers, while supporting 3DTV and the latest Blu-ray audio features. It
decodes digital multichannel surround-sound from up to four HDMI sources, or
by using S/PDIF and optical digital audio sources. Audio is output on six discrete
analog RCA jacks, ready for any multichannel audio power amplifier.
Dolby® Digital 5.1 (AC3), Dolby® Pro Logic II, LPCM 5.1, Dolby® TrueHD and
DTS-HD Master Audio™, and HDMI stereo and multichannel surround sound
audio formats are supported with up to six discrete channels. The front left and
front right channels offer bi-amplification capability to satisfy the most discerning
listeners. Advanced audio pre-processing insures an optimal surround sound
signal, and a bright LCD display guides operation, using the front-panel controls,
the included IR remote, or by an external control system via RS-232 control.
How It Works
Users can select audio from any one of four connected HDMI sources, both
digital audio inputs and a 2-channel analog audio input. A Blu-ray player, gaming
console, set-top box, DVD player, CD player and more can all be connected at
the same time. If an HDMI source is selected, video is delivered in HDMI format
to any HDTV display, and audio is delivered as 5.1 channel audio using standard
RCA connectors. The HDMI output supports 3DTV pass-through, making it ideal
for forward-proofing systems. It also supports digital audio-only sources, using
the digital and analog audio inputs, offering 5.1 channel analog audio outputs,
for high quality surround sound. Users can control all audio features using the IR
remote or front-panel buttons. An RS-232 port and 12V triggers allow interaction
with any home automation system for added convenience. When not in use, the
GefenTV 4x1 HD Switcher w/ Audio Decoding has a standby mode, eliminating
excessive power consumption.
INTRODUCTION

2
READ THESE NOTES BEFORE INSTALLING OR
OPERATING THE 4X1 HD SWITCHER W/ AUDIO DECODING
• The Digital Audio Decoder for HDMI has 8 RCA outputs. A maximum of 6
discrete channels of audio can be output via these connectors. 2 connectors
are available for bi-amping the front left and right channels.
• This product was intended for use with a separate audio amplifier. The RCA
output connectors on the rear panel will require the use of an audio amplifier
to produce adequate volume output.
• This unit will support the following audio formats:
LPCM (up to 6 channels)
Dolby Digital (AC-3 up to 6 channels)
Dolby Pro Logic
Dolby Pro Logic II
• This unit features multiple EDID (display information) modes which will
determine what audio formats can be used. For more information please see
page 36.
• This unit will accept sources that use Deep Color.
OPERATION NOTES

3
Features
• Supports resolutions up to 1080p and 1920 x 1200
• Switch between four HDMI sources and a single HDTV display
• Supports Dolby Digital 5.1 (AC3), Dolby Pro Logic II, LPCM HDMI direct (up
to 6 channels)
• Extracts encoded digital audio from HDMI, TOSLINK, or S/PDIF inputs
• Front Panel push-button controls
• RS-232 control
• IR Remote control
• 12 V trigger input for power amplifiers (turns unit on when 12V is received)
• 12 V, 50 mA trigger output (output is 12V when unit is on, 0V when unit is off)
• Save and recall user settings for each input
• Line level volume control
• Standby Mode
• Enclosure provides excellent heat dissipation and quiet operation
Package Includes
(1) 4x1 HD Switcher w/ Audio Decoding
(1) 6 ft. HDMI cable (M-M)
(1) IR remote control
(1) 24V DC power supply
(1) AC power cord
(1) User manual
FEATURES

4
Front Panel
FRONT PANEL LAYOUT
1 2
11
3
10 9
4
8 7
5
6
  

5
1 IR
This IR receiver will accept commands from the included IR Remote Control
Unit.
2 Input ◄
This button cycles through all video and audio inputs. For each video input,
audio may be selected from the embedded HDMI audio, or the coax, optical, or
L/R analog audio inputs.
3 Volume ▼
This button is used to decrease the volume level of the audio outputs when
not in the Menu System. While in the Menu System this button will cycle down
through the current level’s options.
4 Mode / OK
This button will change the audio processing mode. This button serves as a
confirmation button when using the Menu System.
5 Exit
This button is used to exit the current menu level and return to the previous/
parent level. This button will exit the entire Menu System when on the top most
level.
6 Power
Press this button to power ON the Switcher or place it in Standby mode.
7 Power Indicator
This LED will indicate the current power state. When the LED is red, the unit is
in standby mode. When the LED is green, the unit is on.
8 Menu
This button will activate the Menu System which is where all adjustment and
settings will be made.
9 Main LCD Display
This display will show pertinent status information and will be used to make
adjustments to features in the Menu System.
10 Volume ▲
This button is used to increase the volume level of the audio outputs when not
in the Menu System. While in the Menu System this button will cycle up through
the current level’s options.
11 Mute ►
This button will cycles between Mute-On and Mute-Off modes. When the
Mute-On mode is enabled, all audio output will be ceased. While in the Menu
System this button will cycle through available options in the right direction when
a feature has been selected for adjustment.
FRONT PANEL DESCRIPTIONS

6
BACK PANEL LAYOUT
Back Panel
11
2 31
12
4 65 7 8 9
10

7
BACK PANEL DESCRIPTIONS
1 Line Out (Front Bi-Amp)
Two RCA audio output connectors available for front-channel bi-amping
purposes. The output signal is identical to the Front L/R outputs.
2 Line Out (Surround, Sub, Front)
8 RCA-type audio outputs are available for connection to a separate amplifier.
Up to 6 discrete channels can be utilized.
3 Line In
L/R RCA-type audio inputs for analog audio.
4 Optical In
Use an optical cable to connect an external digital audio source to this TOSLINK
connector.
5 RS-232
This port is used to control functions and features using serial communications.
For more information on this feature please see page 42.
6 Ext IR
Connect an IR extender (Gefen Part No. EXT-RMT-EXTIR) to this port to
extend the IR range if this product.
7 Trigger Out
Provides 11.5 V DC when the Switch is powered ON. This trigger can be used
to control an external power amplifier, lights, curtains, etc.
8 Trigger In
Used to externally power the unit ON or OFF. This trigger will power ON the
Switcher when a 3 V - 12 V DC voltage is applied. If the existing voltage is
removed, then the Switcher is placed in Standby Mode (consumes less than <
1 W).
9 24V DC
Connect the included 24 V DC power supply to this power receptacle. Only use
the power supply that is included with this product.
10 HDMI In (1 - 4)
Use these ports to connect and switch between four HDMI devices.
11 HDMI Out
Connect an HDMI output device to this port.
12 Coax In
Use a coax audio cable to connect an external digital audio source to this
S/PDIF connector.