digi-tech AC-1709 User manual

4 Input HDMI Switcher
AC-1709
User manual

1
I. Introduction
This is a high performance 4x1 HDMI switcher, with features such as ARC, EDID and CEC. It
supports HDCP repeater functions and fast switching between any of the Four HDMI ports. The
system supports all 3D TV formats in addition to all HDTV formats up to 4Kx2K. Furthermore,
the remote control gives uses complete control over the selection of sources and makes the
device incredibly user friendly.
II. Features
Compliant with HDMI 1.4a, CTS 1.4a, DVI 1.0 & VESA DisplayPort 1.1a standards.
HDMI 1.4 support: Audio Return Channel(ARC), 3D TV support, CEC1.4. HDCP repeater
Support 3D Video & 4Kx2K, 8, 10, 12 & 16 bits per color depth.
Audio support:
Dolby TrueHD, DTS-HD Master Audio 7.1CH
Full audio input and output support

2
III. Package
HDMI 1.4 4x1 Switcher
5V DC Power Supply Adaptor
Remote control
Operation Manual
IV. Specifications
Frequency Bandwidth 2.97Gbps
Input Ports 4 x HDMI Female ports.
Output port 1 x HDMI Female port, 1x Toslink, 1 x 3.5mm stereo socket
HDMI Audio Output PCM2, 5.1, 7.1CH, Dolby 5.1, DTS5.1, D-TrueHD, DTS-HD
Power Supply DC 5V 1A
ESD Protection Human Body Model: ± 8kV (air-gap discharge) - ± 4kV (contact discharge)
Dimensions (mm) 190(D) x82 (W) x 26(H)

3
V. Operation controls and Functions
Front Panel
ON/OFF: Power on/off switch.
POWER LED: This red LED illuminate when the device is connected to power & switched on.
IN1/2/3/4 LED:One LED will illuminate when a selected input is being used.
2.0/5.1/7.1 LED: One LED will illuminate when a selected audio EDID format is being used. Or
no LEDs will illuminate when “Auto” is selected.
IR:Remote control receiver.
Input Button:Press this button to select the input source.
EDID BUTTON: Press this button to select either 2.0CH, 5.1CH, 7.1CH or Auto audio output.
ARC BUTTON: Press this button to turn the ARC function On or Off.
RST BUTTON: Press this button to reset the unit to Default Mode. i.e. Input “IN1” selected,
Audio format 2.0CH & ARC is function off.

4
Rear Panel
HDMI Inputs: These sockets connect to a HDMI source output i.e. from a DVD player, Game
console, etc.
HDMI Output:This socket connects to a HDTV or monitor with HDMI cable.
3.5mm Stereo (Analogue) Audio output:This socket outputs the extracted audio signal from
the selected HDMI source in analogue format; connect a 3.5mm plug to audio receiver.
Toslink (Digital) output: This socket outputs the extracted audio signal in analogue format from
the selected HDMI source; connect a Toslink plug to audio receiver.
DC IN: Plug the 5V DC power supply into the unit and connect the adaptor to an AC wall outlet.

5
VI. Application Example

6
VII. Remote control
IN1, IN2, IN3, IN4: Press any numbered ‘IN’put button, the corresponding
input will be selected.
ARC: Press this button to turn the ARC function On or Off.
2.0CH: Press this button to select the 2 channel (stereo) audio output mode.
5.1CH: Press this button to select the 5.1 channel audio output mode.
7.1CH: Press this button to select the 7.1 channel audio output mode.
Auto: Press this button so the unit Auto configures audio output format.
Audio Return Channel (ARC) Function Note; Both TV and Audio System connected needs to
have ARC function. If your devices do not support ARC, you cannot use the ARC function.
When ARC function is on, the Toslink or 3.5mm socket of the switcher will output the Audio
from the TV to your Audio System. When Off, it will output the switchers input audio instead.

7
IMPORTANT:
- Never attempt to open, repair or modify any part of this unit or its accessories.
- Never get any part of the device or its accessories wet.
- Failure to adhere to these points will result in a void of warranty.