Tekvox TEK 1201-N+ User manual

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1201-N+
79033-N+ User Manual
1201-N+ Seamless Presentation Switcher
All Rights Reserved
Version: 79033-N+_2020V1.0

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Preface
Read this user manual carefully before using the product. Pictures shown in this manual are for
reference only. Different product model specifications may vary.
This manual is only for operation instruction, please contact the local distributor for maintenance
assistance. The functions described in this version were updated October, 2018. In order to continue
improving the product, we reserve the right to make function or parameter changes without notice or
obligation. Please refer to the dealers for the latest details.
FCC Statement
This equipment generates, uses and can radiate radio frequency energy and, if not installed and used
in accordance with the instructions, may cause harmful interference to radio communications. It has
been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the
FCC Rules. These limits are designed to provide reasonable protection against harmful interference in
a commercial installation.
Operation of this equipment in a residential area is likely to cause interference, in which case the user
at their own expense will be required to take whatever measures may be necessary to correct the
interference.
Any changes or modifications not expressly approved by the manufacture would void the user’s
authority to operate the equipment.

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Safety Precautions
To ensure the best performance from the product, please read all instructions carefully before using
the device. Save this manual for further reference.
 Unpack the equipment carefully, and save the original box and packing material for possible
future shipment
 Follow basic safety precautions to reduce the risk of fire, electrical shock, and injury to persons
 Do not dismantle the housing or modify the module (electrical shock or burn hazard)
 Using supplies or parts not meeting the products’ specifications may cause damage,
deterioration, or malfunction
 Refer all servicing to qualified service personnel
 To prevent fire or shock hazard, do not expose the unit to rain, moisture or install this product
near water
 Do not put any heavy items on the product’s power cable
 Do not remove the housing of the device as opening or removing housing may expose you to
dangerous voltage or other hazards
 Install the device in a place with sufficient ventilation to avoid damage caused by overheating
 Keep the module away from liquids
 Spillage into the housing may result in fire, electrical shock, or equipment damage. If an object
or liquid falls or spills on to the housing, unplug the module immediately.
 Do not twist or pull by force ends of the optical cable as it may cause malfunction.
 Do not use liquid or aerosol cleaners to clean this unit. Always unplug power to the device before
cleaning.
 Unplug the power cord when left unused for a long period of time
 Information on disposal for scrapped devices: do not burn or mix with general household waste.
Treat them as normal electrical waste

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Table of Contents
1. Product Introduction .................................................................................................................... 6
1.1 Features ............................................................................................................................................... 6
1.2 Package List ........................................................................................................................................ 7
2. Specifications .............................................................................................................................. 8
3. Product Appearance ..................................................................................................................... 9
3.1 1201-N+ Presentation Switcher Panels ............................................................................................ 9
3.1.1 1201-N+ Front Panel .................................................................................................................. 9
3.1.2 1201-N+ Rear Panel ................................................................................................................. 10
3.2 TPUH411RA HDBaseT Receiver Panels ......................................................................................... 11
3.2.1 TPUH411RA Front Panel ......................................................................................................... 11
3.2.2 TPUH411RA Rear Panel .......................................................................................................... 12
4. System Connection .................................................................................................................... 13
4.1 Installation Precautions.................................................................................................................... 13
4.2 System Diagram ................................................................................................................................ 13
4.3 Connection Procedure Steps ........................................................................................................... 14
4.4 Connection of Microphone Mixer .................................................................................................... 14
4.5 Application ......................................................................................................................................... 14
5. Front Panel Control .................................................................................................................... 15
5.1 Manual-Switching ............................................................................................................................. 15
5.2 Auto-Switching .................................................................................................................................. 15
5.3 Volume Adjustment .......................................................................................................................... 15
5.4 Operations of IR ................................................................................................................................ 16
5.4.1 IR Remote ................................................................................................................................. 16
5.4.2 Control of Far-End IR Device from Local ................................................................................ 17
5.4.3 Control Local Device from Remote ........................................................................................ 17
5.5 Operation of CEC Functions ............................................................................................................. 18
5.6 RS232 Control ................................................................................................................................... 18
5.6.1 RS232 Communication Protocol ............................................................................................ 19

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5.6.2 RS232 Control Modes .............................................................................................................. 27
5.6.3 Control TEK-1201-N+ AND Display from Local RS232 Port ................................................. 27
5.6.4 Control TEK 1201-N+ from Local and Remote ...................................................................... 28
5.7 Operations in OSD Menu .................................................................................................................. 29
5.7.1 Options ...................................................................................................................................... 29
5.7.2 Instructions for VGA Converting Cable .................................................................................. 30
5.7.3 Picture ....................................................................................................................................... 32
5.7.4 Setup ......................................................................................................................................... 33
5.8 GUI Control ........................................................................................................................................ 33
5.8.1 Control Menu ............................................................................................................................ 34
5.8.2 Configuration Menu ................................................................................................................. 35
5.8.3 RS232 Control Menu ................................................................................................................ 36
5.8.4 Password Menu ....................................................................................................................... 37
5.8.5 GUI Update ................................................................................................................................ 37
6. Panel Drawing ............................................................................................................................ 38
7. Troubleshooting & Maintenance ................................................................................................. 39
8. After-Sales Service .................................................................................................................... 40

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1. Product Introduction
The TEK 1201-N+ is a next generation, compact seamless presentation switcher/scaler that can be
used on a wall, rack-mounted in a podium, teacher’s desk, or under a conference table. The switcher
includes the following:
 Six input seamless Auto-Switcher Scaler
 Inputs - 5 HDMI, 1 Multi-format (VGA, YUV, or Video)
 Outputs – Mirrored HDMI and HDBaseT Lite
 Balanced stereo audio output
 RS232 control from unit or receiver
 TCP/IP control
 Stereo Mix Input
 Separate Program and Mix volume control
 Operates with TEKVOX Drop-In commands
 Hands-Free operation with automatic switching and power control of a display using CEC
 IR remote control from receiver
 IR pass through to receiver
 IR from receiver to sources
 On Screen Menu Controls for easy setup
 Control of HDMI sources with CEC or IR
 Control of display with CEC, IR, or RS232
 Allows RS232 pass through for display control
 Rack and wall mounting kit included
1.1 Features
 HDMI 1.4a and HDCP 2.2 Compliant
 Supports CEC transport commands for each HDMI input
 Supports CEC Display On/Off commands
 Supports video auto-switching with automatic TV power control
 Bi-directional IR and RS232 control. Including TEKVOX Macro commands
 Selectable output resolutions: 1920x1200, 1920x1080, 1600x1200, 1600x900, 1360x768,
1280x800, 1280x720, 1024x768

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1.2 Package List
 1 x TEK 1201-N+
 2 x Wall Mounting ears
 2 x Rack Mounting ears
 1 x Inline Power Adapter (24VDC, 2.71A)
 1 x IR remote
 1 x IR receiver
 1 x IR emitters
 1 x RS232 cable (3-Pin phoenix connector to DB9)
 1 x VGA converting cables (male VGA to female YPbPr)
 2 x 3-Pin phoenix connectors
 1 x 5-Pin phoenix connector
 6 x Screws (black color)
 4 x Plastic cushions
 1 x TEK TPUH411RA HDBaseT Receiver
 1 x User Manual
Note: Please contact your distributor immediately if any damage or defect in the components is found.

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2. Specifications
Input 5 HDMI (Female), 1 VGA (Female, 15-pin)
Video Signal HDMI, YPbPr, C-video, VGA
Output 1 HDMI (Female)
1 HDBaseT (Female RJ-45)
IR Input 1 IR In, 3.5mm mini jack
IR Output 1 IR Out, 3.5mm mini jack
Resolution Range 1024×768, 1280×720, 1280×800, 1920×1080, 1600×1200,
1600×900, 1920×1200
Bandwidth
HDMI: 4.95 Gbps (1.65 Gbps per color)
C-video: 150 MHz
YPbPr: 170 MHz
VGA: 375 MHz
Transmission Distance 325 ft. (100m)
HDCP Compliant w/ DVI & HDMI 1.4, HDCP 2.2
Audio Input
1 Stereo Audio for VGA (3.5mm jack)
1 Stereo Line Level (3 Pin Phoenix)
2 Stereo Audio Input (3.5mm jack)
Audio Output 1 Balanced Stereo (5 Pin Phoenix)
Frequency Response 20Hz~20KHz
Control
IR Remote
Front Panel Buttons
RS-232
TCP/IP
Power Supply Input: 100VAC ~ 240VAC, 50/60Hz
Output: DC 24V, 2.71A
Power Consumption 28W
Temperature 14 ~ 104°F (-10 ~ 40°C)
Humidity 10% ~ 90%
Case Dimension 8.7″(221mm) x 1.73″(44mm) x 9.25″(235mm)
1U Rack Mountable
Product Weight 2.1 lbs. (0.95kg)

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3. Product Appearance
3.1 1201-N+ Presentation Switcher Panels
3.1.1 1201-N+ Front Panel
1) Built-in IR Receiver
2) Power Indicator - RED when the device is in standby, GREEN when device is powered on and no
indicator when there is no power to device.
3) 1-HDMI/MHL input selector and activity LED/Left key for OSD.
4) 2-HDMI input selector and activity LED/Right key for OSD.
5) 3-HDMI input selector and activity LED/Up key for OSD.
6) 4-HDMI input selector and activity LED/Down key for OSD.
7) 5-HDMI input selector and activity LED/ENTER key for OSD.
8) 6-VGA input selector and activity LED/OSD menu button.
9) Auto-switching selector and activity LED.
 Press this to enter or exit auto-switching mode
 Long-press this button 3 seconds or more to reset output resolution to 720p or to activate
HDMI and HDBT outputs if they have been turned off.
Note: When you set any VGA port to C-video or YPbPr in Manual-switching mode, the
system will not be able to enter Auto-switching mode.
10) Volume knob for variable audio control - Push knob in to toggle between ‘MIX’ and ‘Source’
control.
VO LUME
IR
SO URCE
MIX
1-HDMI/MH L 6-VG A
5-HDMI3- HDMI 4-HD MI2-HDM I AUTO
RES RES ET/3sMENU/3 sENTER
TEK 1201-N
1
2
3
4
5
6
7
8
9
10

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3.1.2 1201-N+ Rear Panel
1) INPUTS
 Video input ports: 1 HDMI/MHL, 4 HDMI inputs, and 1 VGA.
 Audio input ports: 1 VGA auxiliary audio input.
2) OUTPUTS
 HDMI output: HDMI video output port.
 HDBaseT output: Support PoH. Connect with a compatible HDBaseT Receiver to transmit AV
signal, IR, or RS232 control signal.
3) AUDIO IN
 MIX: 3-Pin phoenix connector for line audio input.
 1-AUDIO: 3.5mm mini jack, embedded audio input for 1-HDMI.
 2-AUDIO: 3.5mm mini jack, embedded audio input for 2-HDMI.
4) CONTROL
 IR IN & IR OUT: Connect with IR Receiver and Emitter to control devices via IR.
 IR EYE: Connect with the IR Receiver (with carrier wave only) to control this SC61TS via the
including IR Remote.
 FIRMWARE: Type-A USB port for updating system firmware or loading customized EDID data.
 RS232: Serial port, 3-pin phoenix connector - connect with a control device (such as a PC) to
control SC61TS or other devices connected with HDBaseT Receiver.
 TCP/IP: Ethernet port - connect with PC to control SC61TS via GUI.
5) AUDIO OUT - Stereo balanced L/R audio output.
6) DC 24V - Locking power port, connect 24V DC power adapter.

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3.2 TPUH411RA HDBaseT Receiver Panels
3.2.1 TPUH411RA Front Panel
1) RS232 Mode switcher
 CTRL: RS232 pass-through control mode;
 UPDATE A: Update Valens IC program, connect a PC to the RS232 port, and then double-click
the update file (.bat).
 UPDATE B: Update the IC program which is used for de-embedding audio. The upgrade
method is the same as the above UPDATE A.
2) Link status LED - OFF: No Link/GREEN: Link successful.
3) HDCP compliant LED - OFF: No HDMI traffic/GREEN: Traffic with HDCP/Blinking GREEN: Traffic
without HDCP.
4) Power LED - RED when the device is powered on and no indicator when there is no power to the
device.

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3.2.2 TPUH411RA Rear Panel
1) RS232 Connector - If one is connected with a control device (e.g. PC), then the other should be
connected with the third-party that needs to be controlled.
2) IR IN - Work with far-end IR OUT port, connect with IR Receiver (with carrier) to collect IR signal
to control far-end display device from local.
3) IR OUT - Works with far-end IR IN port - connects with IR Emitter to send IR signal to control input
source device.
4) HDMI OUT - HDMI type A connector - connects to display.
5) AUDIO OUT - 3.5mm stereo audio jack - connects to analog stereo audio device.
6) COAX OUT - Coaxial audio connector – connects to digital audio device.
7) OPTICAL OUT - Optical audio connector - connects to optical audio devices.
8) HDBT IN - Connects to the HDBT OUT socket on HDBaseT Transmitter or Matrix Switcher via
CAT5e/6a/7 cable - supports unidirectional PoH technology.
9) DC 12V Power Port - Connect to 12VDC power adaptor. It can also be powered via the Scaler
Switcher by PoH.
Tx Rx
RS232 DC 12VIR OUT HDMI OUT
HDBT IN
AUDIO
OUT
OPTICAL
OUT
IR IN
COAX
OUT
1
2
3
4
5
6
7
8
9

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4. System Connection
4.1 Installation Precautions
 System should be installed in a clean environment with normal operating temperatures and
humidity.
 All of the power switches, plugs, sockets, and power cords should be installed according to
safety standards.
 All cables should be properly terminated and tested before connecting to the unit.
 All devices should be connected before powering the unit on.
4.2 System Diagram

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4.3 Connection Procedure Steps
1) Connect HDMI source devices (e.g. Blue-ray DVD) to 1~5 HDMI input ports with HDMI cable.
2) Connect a VGA source device (e.g. Laptop) to VGA input port with VGA cable and VGA audio
input port with audio cable.
3) Connect a HDMI display device to HDMI output port with HDMI cable.
4) Connect HDBaseT Receiver to HDBT output port with twisted pair.
5) Connect speaker, headphone or AV amplifier to AUDIO OUTPUT port.
6) Connect control device (e.g. PC, control system) to the TCP/IP port, the Scaler Switcher can be
controlled via GUI.
7) Connect control device (e.g. TekTouchPad) to the RS232 port of the Switcher or the HDBaseT
Receiver (bi-directional RS232 control, either end is available).
8) Connect IR receiver to the IR EYE port. The Switcher can be controlled via IR remote.
9) Both the Switcher and the HDBaseT Receiver have IR IN and OUT. When one model is connected
with IR receiver, the other model should connect with an IR transmitter.
 For example: When “IR IN” of the Scaler Switcher connects with an IR receiver, the IR
transmitter must connect to “IR OUT” of the HDBaseT Receiver.
 The IR signal can be transmitted bi-directionally between the Scaler Switcher and the
HDBaseT Receiver.
10) Connect DC24V power adaptor to the power port (HDBaseT Receiver can be powered by the
Scaler Switcher with PoH function).
Note: If the power adapter is connected to HDBaseT Receiver, the Scaler Switcher can’t be
powered from the HDBaseT Receiver.
4.4 Connection of Microphone Mixer
The TEK 1201-N+ only provides a line-level stereo input that can be used to connect to a microphone
mixer with line-level out. This input is a stereo 3-Pin phoenix connector and is labeled as “MIX”.
4.5 Application
The TEK 1201-N+ is ideal for both small conference room and typical classroom room applications,
especially when there is no need for an equipment rack. The switcher can be mounted under a
conference table, on a wall, or in a teacher’s desk. It can also be easily mounted into a rack with its
rack-mount ears. When used with a TEKVOX Drop-In™ system, a low cost and complete mediated
classroom system can be created. Placing the switcher in “Auto-Switching” and enabling the “Output
CEC Auto Power” modes allows the switcher to automatically power on and off a display with CEC
control when video is detected at any of its video input connections. This feature allows the TEK 1201-
N+ to be used for both simple conference rooms as well as collaboration tables.

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5. Front Panel Control
Front panel buttons can be used for switching operations and adjusting the volume.
5.1 Manual-Switching
Press 1-HDMI/MHL, 2-HDMI, 3-HDMI, 4-HDMI, 5-HDMI, 6-VGA on the front panel to select the
corresponding input source.
5.2 Auto-Switching
Press AUTO to enter in auto-switching mode. The auto-switching mode abides by the following
principles:
New input - Once detecting a new input signal, the switcher automatically displays this new signal.
Rebooting device - The switcher has the ability to save the last configuration before losing power. If
rebooted and the last switching mode was set to “auto-switching”, the switcher will automatically enter
auto-switching mode. If the last displayed signal is still available, the unit will output this signal. If not,
the unit will detect all the input signals with priority from 1-HDMI to 6-VGA. The first detected signal is
sent to the output.
Signal removing - When a signal is removed, the unit will detect all the input signals with priority from
1-HDMI to 6-VGA. The first detected signal is sent to the output.
Note: Auto-switching function works only when inputting a new signal, removing a signal, or power-
rebooting. With any VGA port set to C-video or YPbPr, the system will be not be able to enter in Auto-
switching mode.
5.3 Volume Adjustment
Press the “Volume” knob to select “MIX” or “Source” audio to adjust. The corresponding LED will turn
green and remain on. Move the volume knob in clockwise or counter-clockwise direction to turn the
volume up or down.

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5.4 Operations of IR
5.4.1 IR Remote
Connect IR receiver to IR EYE port, the switcher can be controlled by using the included IR Remote.
The user is able to use the IR Remote to turn on/off the HDMI source or Display using CEC control.
1) Power
This button is used to power cycle the
switcher and CEC controlled display.
2) Input Selection buttons (1~6)
Select video source via the corresponding
button.
3) AUTO - Enter/Exit auto-switching mode.
4) MUTE – Mute and unmute the audio
5) VOL - Volume adjusting button. Pressing this
button displays the volume adjusting menu.
6) Menu Operation Buttons
OK: confirm button.
,,, : UP/DWON/LEFT/RIGHT button,
for value setting or page-turn.
7) Exit
Press to exit the OSD menu.
8) Menu
Enter OSD menu or return to the previous
menu.

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5.4.2 Control of Far-End IR Device from Local
Connect an IR receiver to IR IN port on the Switcher and connect IR emitter to the IR OUT port on the
HDBaseT Receiver. The far-end device can be control by its IR remote from local.
5.4.3 Control Local Device from Remote
Connect an IR emitter to IR OUT port on the Compact Scaler Switcher and connect IR receiver to the
IR IN port on the HDBaseT Receiver. The source devices can be controlled by their IR remote from the
receiver.

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5.5 Operation of CEC Functions
The switcher supports CEC control of a Blu-ray or TV. It can be turned on/off by sending RS232
commands or OSD menu operations. The default setting is ON.
Commands pertaining to CEC: “50686%” (enable CEC) and “50687%” (disable CEC)
HDMI INPUT ports 1~5 support CEC. If the connected source devices also support CEC and their CEC
are on, users can control the source device and display via the switcher’s IR remote.
The working status related to CEC and STANDBY is shown as below:
Situation Working Status
CEC: on, Standby: on
Press STANDBY button on IR remote. When the Switcher enters
standby mode, all HDMI source devices and displays will as well.
Press STANDBY button again on IR remote. The Scaler Switcher exits
standby mode. The previous selected HDMI input source device and
display power on as well.
CEC: on, Standby: off Press STANDBY button on IR remote. The Switcher enters in standby
mode; HDMI 1~3 source devices and display do not change.
CEC: on Use , , , and buttons on IR remote to control HDMI
source device.
CEC: off Unable to control HDMI source device and display through IR remote.
5.6 RS232 Control
Use the RS232 port on the TEK 1201-N+ or HDBaseT receiver to control the switcher using a third party
RS232 device. It is also possible to control a display from the switcher using RS232 at the HDBaseT
Receiver. To control the switcher, the RS232 commands must be sent as one packet using a program
such as Hercules or CommWatch. Do not terminate with Carriage Return. These same commands are
used with TCP/IP port 4001. For feedback, the same command is used with terminating <CR><LF>.
Hercules from HW Group: http://new.hwg.cz/files/download/sw/version/hercules_3-2-8.exe
HDBaseT Baud rates supported 2400, 4800, 9600 (default), 19200, 38400, 57600, or 115200.

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5.6.1 RS232 Communication Protocol
Communication protocol: RS232 Communication Protocol
Baud rate: 9600 Data bit: 8 Stop bit: 1 Parity bit: none
Command Function Feedback Example
Switch Commands
50701% Switch to 1-HDMI/MHL input 50701<CR><LF>
50702% Switch to 2-HDMI input 50702<CR><LF>
50703% Switch to 3-HDMI input 50703<CR><LF>
50704% Switch to 4-HDMI input 50704<CR><LF>
50705% Switch to 5-HDMI input 50705<CR><LF>
50705% Switch to VGA / YPbPr / AV input 50706<CR><LF>
50680% Set the signal format to VGA for 6-VGA input. 50680<CR><LF>
50681% Set the signal format to YPbPr for 6-VGA input. 50681<CR><LF>
50682% Set the signal format to AV(C-video) for 6-VGA input. 50682<CR><LF>
50785% Enable auto-switching 50682<CR><LF>
50786% Disable auto-switching 50786<CR><LF>
Audio Commands
50600% MUTE Source audio 50600<CR><LF>
50601% Un-Mute Source audio 50601<CR><LF>
50602% Source audio volume up 501xx<CR><LF>
50603% Source audio volume down 501xx<CR><LF>
501xx% Set the Source volume (xx = 00 to 60) 501xx (xx=00~60)
50720% Mute Source audio & MIC audio 50720<CR><LF> Mute
50721<CR><LF> Unmute
50721% Unmute Source audio & MIC audio 50721<CR><LF> Unmute
50720<CR><LF> Mute
50722% Mute MIC audio 50722<CR><LF>
50723% Unmute MIC audio 50723<CR><LF>
50724% MIX volume up 508xx<CR><LF>
50725% MIX volume down 508xx<CR><LF>
508xx% Set MIX volume (xx = 00 to 60) 508xx (xx=00~60)
50726% Disable VGA audio. 50726<CR><LF>
50727% Enable VGA audio. 50727<CR><LF>
50660% Disable 1-HDMI audio. 50660<CR><LF>
50661% Enable 1-HDMI audio. 50661<CR><LF>
50662% Disable 2-HDMI audio. 50662<CR><LF>
50663% Enable 2-HDMI audio. 50663<CR><LF>
50664% Disable 3-HDMI audio. 50664<CR><LF>

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Command Function Feedback Example
50665% Enable 3-HDMI audio. 50665<CR><LF>
50666% Disable 4-HDMI audio. 50666<CR><LF>
50667% Enable 4-HDMI audio. 50667<CR><LF>
50668% Disable 5-HDMI audio. 50668<CR><LF>
50669% Enable 5-HDMI audio. 50669<CR><LF>
50941% Disable MIX audio. 50941<CR><LF>
50942% Enable MIX audio. 50942<CR><LF>
50954% 1-HDMI audio source from internal audio. 50954<CR><LF>
50955% 1-HDMI audio source from external 1-Audio. 50955<CR><LF>
50956% 2-HDMI audio source from internal audio. 50956<CR><LF>
50957% 2-HDMI audio source from external 2-Audio. 50957<CR><LF>
50648% Enable HDMI embedded audio output. 50648<CR><LF>
50649% Disable HDMI embedded audio output. 50649<CR><LF>
Resolution Commands
50619% Set the output resolution to 1360X768 HD. 50619<CR><LF>
50626% Set the output resolution to 1024X768 XGA. 50626<CR><LF>
50627% Set the output resolution to 1280X720 720P. 50627<CR><LF>
50628% Set the output resolution to 1280X800 WXGA. 50628<CR><LF>
50629% Set the output resolution to 1920X1080 1080P. 50629<CR><LF>
50620% Set the output resolution to1920X1200 WUXGA. 50620<CR><LF>
50621% Set the output resolution to1600X1200 UXGA. 50621<CR><LF>
50624% Set the output resolution to 1600X900. 50622<CR><LF>
Setup Commands
50797% Standby 50797<CR><LF>
50697% Power On 50697<CR><LF>
50604% Lock the front panel buttons 50604<CR><LF>
50605% Unlock the front panel buttons 50605<CR><LF>
502xx% Set the brightness (xx = 00 to 99) 502xx<CR><LF>
503xx% Set the contrast (xx = 00 to 99) 503xx<CR><LF>
504xx% Set the saturation (xx = 00 to 99) 504xx<CR><LF>
505xx% Set the sharpness (xx = 00 to 99) 505xx<CR><LF>
50698% Software update. 50698<CR><LF>
50617% Restore to factory defaults. Factory Reset
50607% Auto-adjust the color temperature to (xx=01 Cool/02
Medium/03 Warm/ 04 User) 50607:xx<CR><LF>
50608% Set the aspect ratio to xx (xx= 01 16:9/02 4:3/ 03
auto) 50608:xx<CR><LF>