ALFATRON ALF-CHKA2 HDMI 2.0 Audio De-Embedder User Manual

: June 6, 2024
: ALFATRON

Table of Contents

FCC Statement
Statement
Safety Precaution
Introduction
Features
Package List
Specification
System Diagram
Limited warranty in respect of Alfatron Products Only
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Download This Manual (PDF format)

www.alfatronelectronics.com
ALFATRON ELECTRONICS GmbH GERMANY
ALF-CHKA2

ALFATRON ALF-CHKA2 HDMI 2.0 Audio De-

ALFATRON ALF-CHKA2

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.

Do not dispose of this product with the normal household waste at the end of its life cycle. Return it to a collection point for the recycling of electrical and electronic devices. This is indicated by the symbol on the product, user manual, or packaging. The materials are reusable according to their markings. By reusing, recycling, or other forms of utilisation of old devices you make an important contribution to the protection of our environment. Please contact your local authorities for details about collection points.

Statement

Read this user manual carefully before using this product. Pictures shown in this manual are for reference only, different models and specifications are subject to real products. This manual is only for operation instruction only, not for any maintenance usage. In the constant effort to improve our product, we reserve the right to make function or parameter changes without notice or obligation. Please refer to the dealers for the latest details.

Safety Precaution

To ensure the best from the product, please read all instructions carefully before using the device. Save this manual for further reference.

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 to avoid electrical shock or burn.
Using supplies or parts not meeting the product’s specifications may cause damage, deterioration, or malfunction.
Do not expose the unit to rain, moisture or install this product near liquid.
Install the device in a place with adequate ventilation.
Do not twist or forcefully pull the ends of the optical cable. It can cause 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.
Refer all servicing to qualified service personnel.

Introduction

The ALF-CHKA2 is a small-size HDMI 2.0 audio de-embedder with 1 HDMI input, 1 HDMI output, and three kinds of audio outputs. It is designed to extract audio from a 4K HDMI signal via stereo balanced L/R audio, analog RCA, and coaxial digital audio output ports. It supports 4K@60Hz / 4:4:4 HDR, EDID & CEC pass- through, and the transmission rate is up to 18Gbps. Moreover, there are three audio modes can be chosen to be compatible with various audio processing devices.

Features

Supports stereo balanced L/R audio, analog RCA, and coaxial digital audio output ports.
Supports three audio modes PASS, BITSTREAM, and PCM. HDMI input supports
HDCP 2.2, and the output supports HDCP 1.4.
Supports HDMI 2.0 4K@60Hz / 4:4:4 HDR, EDID & CEC pass-through.
The transmission rate is up to 18Gbps.

Package List

▪ 1 x ALF-CHKA2	▪ 1 x Power Adaptor (12VDC,1A)
▪ 1 x 5-pin Phoenix Connector	▪ 4 x Plastic Cushions

▪ 1 x User Manual

Panel Description

ALFATRON ALF-CHKA2 HDMI 2.0 Audio De-Panel Description

① Bicolour LED: RED when powered on, GREEN when HDMI signal input.
② Audio Modes Switcher:

PASS (default): The source device obtains its EDID from display.
BITSTREAM: If the display only supports PCM, and the format of the audio source is DTS / Dolby, the switcher
should be switched to BITSTREAM to ensure the DTS / Dolby audio can be output via HDMI and coaxial digital audio ports ( ⑥ & ⑨ ), there will be no audio output on analog audio ports( ⑦ & ⑧ ).
PCM: If the digital audio needs to be output via analog audio ports ( ⑦ & ⑧ ), the switcher should be
switched to PCM, and the coaxial audio port ( ⑨ ) will also output PCM audio.
③ HDMI IN: Connects with an HDMI source.
④ FW: Firmware upgrade.
⑤ DC 12V: Connects with the included power adaptor.
⑥ HDMI OUT: Connects with an HDMI display.
⑦ L/R: Stereo balanced L/R audio output.
⑧ L/R: analog RCA audio output.
⑨ COAX: Coaxial digital audio output.

Specification

Video

System Diagram

ALFATRON ALF-CHKA2 HDMI 2.0 Audio De-Diagram

Note: This picture is for reference only, the specific scheme is subject to real devices.

After-sales Service
Should you experience problems using the ALF-CHKA2, please note that any transport costs of the equipment to the distributor are borne by the user during the warranty.
**1)**Product Limited Warranty: Alfatron 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 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 is not authorized by Alfatron.
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 at
www.alfatronelectronics.com

Limited warranty in respect of Alfatron Products Only

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 labor 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 were used correctly according to the Company’s instructions, and only with the use of the Company’s components.
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 labor 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 into 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.