ALFAtron ALF-SUK2 User manual

ALF-SUK2 HDMI 2.0 1x2 Splitter with Audio
De-embedded

ALF-SUK2
Preface
Read this user manual carefully before using the product. Pictures shown in this
manual are for reference only. Different models and specifications are subject to real
product.
This manual is only for operation instruction, please contact the local distributor for
maintenance assistance. The functions described in this version were updated till
March, 2020. In the constant effort to improve 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 B 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.

ALF-SUK2
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. It may result in electrical shock
or burn.
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 extension cable in case of extrusion.
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 ventilation to avoid damage caused by overheating.
Keep the module away from liquids.
Spillage onto 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 forcefully pull ends of the optical cable. It may cause a malfunction.
Do not use liquid or aerosol cleaners to clean this unit. Always unplug the 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, please treat as normal electrical waste.

ALF-SUK2
Table of Contents
1. Product Introduction....................................................................................................1
1.1 Features ............................................................................................................1
1.2 Packing List .......................................................................................................2
2. Technical Specification................................................................................................3
3. Panel Description........................................................................................................5
3.1 Front Panel........................................................................................................5
3.2 Rear Panel.........................................................................................................5
3.3 Usage Precaution ..............................................................................................6
3.4 System Diagram ................................................................................................6
4. DIP Switch Operation..................................................................................................7
4.1 EDID Management ............................................................................................7
4.2 HDCP Mode ......................................................................................................8
4.3 Downscale .........................................................................................................8
5. Firmware Upgrade ......................................................................................................9
6. Panel Drawing ..........................................................................................................12
7. Troubleshooting & Maintenance ...............................................................................13
8. After-sales Service....................................................................................................14

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1. Product Introduction
The ALF-SUK2 is an HDMI 2.0 splitter with one HDMI input and two HDMI outputs, for
high dynamic range (HDR) formats.
It is HDCP 2.3 compliant, supports 4K / UHD video @ 60 Hz with 4:4:4 chroma
sampling, as well as HDMI data rates up to 18 Gbps.
This splitter includes de-embedded audio, scaling, EDID management, and front panel
LED indicators for power and signal status.
1.1 Features
4K / UHD capability @ 60 Hz with 4:4:4 chroma sampling
Compatible with 4K HDR10 and Dolby® Vision™ @ 60 Hz, HLG (Hybrid Log-
Gamma).
HDCP 2.3, and is backwards compatible
Smart EDID management via 5 pin DIP switcher, with the source through a display’s
EDID or internally stored EDID
De-embedded audio: 1 x balanced, 1 x Optical, 1 x RCA
Automatically downscaling from 4k to 1080p for legacy displays
Device can be updated in the field via USB port

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1.2 Packing List
1x ALF-SUK2
1x Power Adapter (5V DC 2A)
4x Plastic Cushions
2 x Mounting ears with 4 screws
1 x 5 Pins phoenix terminal
1x User Manual
Note:Please contact your distributor immediately should any damage or defect in the
components be found.

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2. Technical Specification
Video
I/O One HDMI in, two HDMI out
Connector Type-A female HDMI
HDMI Resolution Up to 4Kx2K@60Hz 4:4:4 8bit
HDMI Standard 2.0
HDR Formats 420, 422, 444 (10 and 12 Deep Colour)
HDR10, HDR10+, DOLBY VIDION, HLG
Deep Colour Up to 16 Bit (1080), up to 12 Bit (4K)
HDCP Version 2.3, 2.2, 1.4 compliant
CEC Supported
Audio
HDMI Audio
PCM 2.0 CH, LPCM5.1, LPCM 7.1, Dolby Digital, DTS 5.1, Dolby®
TrueHD, Dolby Digital® Plus, and DTS-HD® Master Audio™, DTS-
X, Dolby Atmos.
COAX
PCM 2.0 CH, LPCM5.1, LPCM 7.1, Dolby Digital, DTS 5.1, Dolby®
TrueHD, Dolby Digital® Plus, and DTS-HD® Master Audio™, DTS-
X, Dolby Atmos.
Analog (Balanced) PCM 2.0 CH
Analog ( on RCA) PCM 2.0 CH
Control
Control Part (1) EDID 5-pin DIP switch, (1) Micro-USB port
General
Bandwidth 18Gbps
HDMI 2.0 Cable Length
4K@60Hz 4:4:4 ≤ 5m, 4K@60Hz 4:2:0 ≤ 15m,
1080P ≤ 20m
Operation Temperature -10℃~ +55℃
Storage Temperature -25℃~ +70℃
Relative Humility 10%-90%
Power Supply Input:100V~240V AC; Output: 5V DC 1A

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Power Consumption 2W (Max)
Dimension (W*H*D) 120 mm x 21mm x 75mm
Net Weight g
Note: Please use a high-quality HDMI cable fully compliant with HDMI 2.0 for reliable
transmission and connection.

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3. Panel Description
3.1 Front Panel
No.
Name & Description
Remark
1
Power LED indicator
The LED illuminates RED when it is powered on.
2
HDMI input LED indicator
The LED illuminates GREEN when the input is connected
3 HDMI output LED indicator The LED illuminates GREEN when the output is connected
4
5 DIP EDID switch
Each switch has 2 settings, 0 & 1 ( UP=0, DOWN=1)
5
HDMI outputs
Two HDMI output ports
6 USB For firmware update service
3.2 Rear Panel
No.
Name & Description
Remark
1
HDMI input
HDMI input port
2
Balanced audio output
5 pins phoenix connector
3
COAX audio output
Digital de-embedded audio at SPDIF connector
4
RCA audio output
Analog de-embedded audio at RCA connector
5 Power connector Connect to 5V 2A power supply

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System Connection
3.3 Usage Precaution
Ensure all components and accessories are included before installation.
System should be installed in a clean environment with proper temperature and
humidity.
All of the power switches, plugs, sockets, and power cords should be insulated and
safe.
All devices should be connected before power on.
3.4 System Diagram
The following diagram illustrates the typical input and output connection of the splitter:

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4. DIP Switch Operation
4.1 EDID Management
The Extended Display Identification Data (EDID) is used by the source device to match
its video resolution with the connected display. By default, the source device obtains its
EDID from the first connected display. Meanwhile, since the displays with different
capabilities are connected to the splitter, the DIP switch on the front panel can be used
to set the EDID to a fixed value to ensure the compatibility in video resolution.
The switch represents “1” when in the lower (ON) position, and it represents “0” while
putting the switch in the upper (OFF) position.
DIP 1~4 are used for EDID setting. The DIP switch status and its corresponding setting
are shown at the back of the product.
# DIP-1 DIP-2 DIP-3 DIP-4
1 0000
2 0001
3 0010
4 0011
5 0100
6 0101
7 0110
8 0111
9 1000
10 1001
11 1010
12 1011
13 1100
14 1101
15 1110
16 1111
EDID Setting
4K60Hz_3D_2CH(PCM)_HDR
4K60Hz_3D_5.1CH_HDR
4K60Hz_3D_7.1CH_HDR
4K60Hz_3D_2CH(PCM)
4K60Hz_3D_5.1CH
4K60Hz_3D_7.1CH
Set EDID OUT1 Audio, OUT2 Video MIX
Set EDID OUT2 Audio, OUT1 Video MIX
1080P_7.1CH
4K30Hz_3D_2CH(PCM)
4K30Hz_3D_5.1CH
4K30Hz_3D_7.1CH
4K60Hz(Y420)_3D_7.1CH
JUMPER
EDID COPY (See NOTE 1)
1080P_2CH(PCM)
1080P_5.1CH

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4.2 HDCP Mode
Put the DIP-5 5 on the “OFF” position to select HDCP Active mode, or on the “ON”
position for HDCP Passive mode.
Switch Status
Mode
HDCP
ON (1)
Passive
(Default) Automatically follows the display’s HDCP version.
OFF (0) Active
Automatically removes the HDCP content of HDMI
output for broader video solution.
4.3 Downscale
The unit supports Auto downscaling when detecting that the display does not support
4K, and will downscale to 1080p, the downscale capability is shown below:
Input Output
Resolution Refresh Color
Space Downscale 1080p Specs
4K 60Hz 4:4:4 Support 1080p@60Hz 4:4:4
4K 50Hz 4:4:4 Support 1080p@50Hz 4:4:4
4K 30Hz 4:4:4 Support 1080p@30Hz 4:4:4
4K 25Hz 4:4:4 Support 1080p@25Hz 4:4:4
4K 24Hz 4:4:4 Support 1080p@24Hz 4:4:4
4K 60Hz 4:2:0 Support 1080p@60Hz 4:4:4
4K 50Hz 4:2:0 Support 1080p@50Hz 4:4:4
4K 30Hz 4:2:0 Support 1080p@30Hz 4:4:4
4K 25Hz 4:2:0 Support 1080p@25Hz 4:4:4
4K 24Hz 4:2:0 Support 1080p@24Hz 4:4:4

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5. Firmware Upgrade
Connect Micro-USB from the PC to the ALF-SUK2
Power on the ALF-SUK2
Run the “Uart” tool [UartAssist.exe] on PC, Select COM port which can be used
for firmware upgrading. Choose [56700 bps] and click [open] button as shown
below. Send command [IAP 88 1] and CRLF to enter update state, and click [Close]
to exit the “Uart” tool.
Run the Flash tool [GigaDevice MCU ISP Programmer.exe] on PC, choose [56700
bps] and click [Next], [Next] and [Next] button as below picture shown.

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Load the firmware hex file, such as [SP12HH-H22-033-V1.04(DDEC).hex], then
click [Next] button to upgrade, pictured below:

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After completing the upgrade, then click [Finish] button
Please reboot the unit once the firmware update is completed.

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6. Panel Drawing

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7. Troubleshooting & Maintenance
Problems Potential Causes Solutions
Colour loss or no video
signal output in HDMI
display.
The connecting cables
may not be connected
correctly or may be
broken.
Check whether the cables
are connected correctly and
in working condition.
The display is not
compatible with the
present output resolution.
Ensure the resolution of the
display(s) is compatible with
the present resolution.
No HDMI signal output
through the splitter while
local HDMI input is in
normal working state.
The connecting cables
may not be connected
correctly, or it may be
broken.
Check whether the cables
are connected correctly and
in working condition.
Splash screen in output
devices.
Poor quality of the
connecting cable.
Replace with a cable of
good quality.
Static becomes stronger
when connecting the
video connectors.
Bad grounding. Check the grounding and
ensure it is connected well.
Note: If the problem persists after following the above troubleshooting steps, please
contact your local dealer or distributor for further assistance.

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8. After-sales Service
Should you experience problems using the ALF-SUK2, please refer to the manual and
troubleshooting and maintenance section (8). Should the error persist, note that any
transport costs of the equipment to the distributor are borne by the user during the
warranty.
1) Product Limited Warranty: The company warrants that its products will be free
from defects in materials and workmanship for seven years, which starts from the
first day of purchase.
Proof of purchase in the form of a bill of sale or receipted invoice which is evidence
that the unit is within the warranty period must be presented to obtain warranty
service.
2) What the warranty does not cover (servicing available for a fee):
●Warranty expiration.
●Factory applied serial number has been altered or removed from the product.
●Damage, deterioration or malfunction caused by:
●Normal wear and tear
●Use of supplies or parts not meeting product specifications
●No certificate or invoice as the proof of warranty.
●The product model showed on the warranty card does not match with the
product or if the product had been altered.
●Damage caused by force majeure.
●Servicing not authorized by the company
●Any other causes which do not relate to a product defect
●Delivery, installation or labour charges for installation or setup of the product
3) Technical Support: Contact our after-sales department via email or telephonically
and please inform us the following information about your case:
●Product version and name.
●Detailed failure situations.
●The formation of the cases.

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1. Limited Warranty
1.1 This limited warranty covers defects in materials and workmanship in this product.
1.2 Should warranty service be required, proof of purchase must be presented to the
Company. The serial number on the product must be clearly visible and not have been
tampered with in any way whatsoever.
1.3 This limited warranty does not cover any damage, deterioration or malfunction
resulting from any alteration, modification, improper or unreasonable use or
maintenance, misuse, abuse, accident, neglect, exposure to excess moisture, fire,
improper packing and shipping (such claims must be presented to the carrier),
lightning, power surges, or other acts of nature. This limited warranty does not cover
any damage, deterioration or malfunction resulting from the installation or removal of
this product from any installation, any unauthorized tampering with this product, any
repairs attempted by anyone unauthorized by the Company to make such repairs, or
any other cause which does not relate directly to a defect in materials and/or
workmanship of this product. This limited warranty does not cover equipment
enclosures, cables or accessories used in conjunction with this product.
This limited warranty does not cover the cost of normal maintenance. Failure of the
product due to insufficient or improper maintenance is not covered.
1.4 The Company does not warrant that the product covered hereby, including, without
limitation, the technology and/or integrated circuit(s) included in the product, will not
become obsolete or that such items are or will remain compatible with any other
product or technology with which the product may be used.
1.5 Only the original purchaser of this product is covered under this limited warranty.
This limited warranty is not transferable to subsequent purchasers or owners of this
product.
1.6 Unless otherwise specified, the goods are warranted in accordance with the
manufacturer’s product specific warranties against any defect attributable to faulty
workmanship or materials, fair wear and tear being excluded.
1.7 This limited warranty only covers the cost of faulty goods and does not include the
cost of labour and travel to return the goods to the Company’s premises.
1.8 In the event of any improper maintenance, repair or service being carried out by
any third persons during the warranty period without the Company’s written
authorization, the limited warranty shall be void.
1.9 A 7 (seven) year limited warranty is given on the aforesaid product where used
correctly according to the Company’s instructions, and only with the use of the
Company’s components.

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1.10 The Company will, at its sole option, provide one of the following three remedies to
whatever extent it shall deem necessary to satisfy a proper claim under this limited
warranty:
1.10.1 Elect to repair or facilitate the repair of any defective parts within a reasonable
period of time, free of any charge for the necessary parts and labour to complete the
repair and restore this product to its proper operating condition.; or
1.10.2 Replace this product with a direct replacement or with a similar product deemed
by the Company to perform substantially the same function as the original product; or
1.10.3 Issue a refund of the original purchase price less depreciation to be determined
based on the age of the product at the time remedy is sought under this limited
warranty.
1.11 The Company is not obligated to provide the Customer with a substitute unit
during the limited warranty period or at any time thereafter.
1.12 If this product is returned to the Company this product must be insured during
shipment, with the insurance and shipping charges prepaid by the Customer. If this
product is returned uninsured, the Customer assumes all risks of loss or damage
during shipment. The Company will not be responsible for any costs related to the
removal or reinstallation of this product from or to any installation. The Company will
not be responsible for any costs related to any setting up this product, any adjustment
of user controls or any programming required for a specific installation of this product.
1.13 Please be aware that the Company’s products and components have not been
tested with competitor’s products and therefore the Company cannot warrant products
and/or components used in conjunction with competitor’s products.
1.14 The appropriateness of the goods for the purpose intended is only warranted to
the extent that the goods are used in accordance with the Company’s installation,
classification and usage instructions.
1.15 Any claim by the Customer which is based on any defect in the quality or condition
of the goods or their failure to correspond with specification shall be notified in writing to
the Company within 7 days of delivery or, where the defect or failure was not apparent
on reasonable inspection by the Customer, within a reasonable time after discovery of
the defect or failure, but, in any event, within 6 months of delivery.
1.16 If delivery is not refused, and the Customer does not notify the Company
accordingly, the Customer may not reject the goods and the Company shall have no
liability and the Customer shall pay the price as if the goods had been delivered in
accordance with the Agreement.
1.17 THE MAXIMUM LIABILITY OF THE COMPANY UNDER THIS LIMITED
WARRANTY SHALL NOT EXCEED THE ACTUAL PURCHASE PRICE PAID FOR THE
PRODUCT.