HDMI (High-Definition Multimedia Interface) is an interface standard used for audiovisual equipment such as high-definition television and home theater systems. With 19 wires wrapped in a single cable that resembles a USB wire, HDMI is able to carry a bandwidth of 5 Gbps (gigabits per second). This is more than twice the bandwidth needed to transmit multi-channel audio and video, future-proofing HDMI for some time to come. This and several other factors make HDMI much more desirable than its predecessors, component video, S-Video and composite video.

HDMI is an uncompressed, all-digital signal, while the aforementioned interfaces are all analog. With an analog interface, a clean digital source is translated into less precise analog, sent to the television, then converted back to a digital signal to display on screen. At each translation, the digital signal loses integrity, resulting in some distortion of picture quality. HDMI preserves the source signal, eliminating analog conversion to deliver the sharpest, richest picture possible.

Previous video interfaces required separate audio cables, with the vast majority of people using standard RCA L/R analog audio jacks. HDMI, with its abundant bandwidth and speed, carries not only video but also up to eight digital audio channels for uncompromised surround-sound. It replaces the tangle of wires behind the system with a single cable, greatly simplifying the entire setup process of the home theater system while delivering top tier performance.

Though standard HDMI or "Type A" has 19 wires, "Type B" will have 29 wires. The latter is targeted for the motion picture industry and other professional applications. Both varieties are "Intelligent HDMI," referring to the built-in capability for HDMI-enabled components to talk to each other via the interface. Auxiliary information can provide all-in-one remote functionality and other interoperable features not possible in previous interface technologies.

HDMI supports standard video formats, enhanced video and high-definition. It is also backwards compatible with DVI (Digital Video Interface). High-end graphics cards featuring a DVI port can connect to a HDMI interface via a DVI/HDMI cable. This is simply a cable with a DVI connector on one end and a HDMI connector on the other. As a rule, HDMI cables should not run longer than 15 feet (5 meters), or degradation of the signal could occur.

As of 2005, many high-end television sets were sold with at least one HDMI interface. Some experts advise that two HDMI interfaces will provide more flexibility, and for those who want to connect a game console, three might serve better. Multiple interfaces will become common on digital TVs as the industry incorporates HDMI interfaces into more peripheral components.

JEHE TECHNOLOGY DEVELOPMENT CO.,LTD International RMA and DOA Polices

RMA(return merchandise authorization) Returning

Customers should pass RMA sheet to our sales or merchandiser of International Department, no matter whether the products to be repaired or exchanged are in the period of warranty or not. Customers should fill in the information of its company and the product in RMA sheet, such as company name, address, contact person, phone, fax number, e-mail, the model, serial number of product and the defect description.

Upon receipt of the RMA sheet and returned goods, JEHE will assign professional FAEs to do the detection. If the detected product are verified no defect existed, we will charge the cost of detection and freight to the NDF by case.

All the products of Giada but gifts will have a 24-months’ warranty period since the date of purchase. JEHE promises the warranty for issues regarding materials and quality of its products or appendages. In warranty period, customers can enjoy the warranty service free of charge after filling RAM sheets However, warranty does not include artificial destroy, improper use, excessive use, natrually disaster and the dismounting ways which are not authorized by JEHE. Please be noted that all the returning goods will be rejected and returned back to the customers if they are not conformity with the principle of RMA Policy. All the cost created will be paid by customers.

Non-Warranty Period

The damage not in the warranty period or brought by artificial carelessness belongs to Non-Warranty Period. If it’s general defect, JEHE will provide a very reasonable quotation which includes the cost of repair and freight

In non-warranty period, customers will bear freight charge forth and back, as well as repair cost.(eg. cost of repair working hours and spare part). Please be noted that JEHE reserves the right to turned down the repairing requirement for product in non-warranty period (eg. phase out )

To avoid import duty and other tax, please mark down in invoice and packing list that the product is for repairing which, also makes customs clearance more convenient. JEHE will not replace or exchange product at will. We are just responsible for repairing. If any duty is involved, the customers should pay for it.

DOA(Dead on arrival) Returning

If the customers receive the products and find them can not work, they must contact the International Department of JEHE immediately. We will follow DOA policy to deal with the products which are notified in 15 days upon receipt and that the viciousdamage or the damage by improper use has been eliminated.

To follow the returning procedure of DOA.the customers have to fill the DOA declaration sheet before they send the product to JEHE, To simplify the handle process and decrease the potential difficulties of improving the cause of defect, we suggest that DOA product has to be returned back to JEHE in 30 days and packed with original exterior and interior packing and enclose herewith all the appendage

Upon receipt of DOA product, JEHE will assign professional FAEs to make detection. If DOA is verified, we will send new product back to customers and the freight charge forth and back will be covered by JEHE.

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