Detail of GB/T 26686-2011

Introduction of GB/T 26686-2011

1 Scope This standard specifies the functions and performance requirements, inspection rules, marking, packing, transport and storage of digital terrestrial television receiver which supports the receiving function of the digital terrestrial television in GB 20600-2006 (hereinafter referred to as receiver). This standard is applicable to digital terrestrial television receivers above 66cm (26in) and serves as the main base for product design, production finalization and inspection. This standard may be implemented by reference for receivers under 66cm (26in). 2 Normative References The following referenced documents are indispensable for the application of this document. For dated normative references, only the dated edition applies. For undated references, the latest edition of the normative document (including all the amendments) referred to applies. GB/T 191 Packaging-Pictorial Marking for Handling of Goods GB/T 2828.1-2003 Sampling Procedures for Inspection by Attributes-Part 1: Sampling Schemes Indexed by Acceptance Quality Limit (AQL) for Lot-by-lot Inspection GB/T 2829-2002 Sampling Procedures and Tables for Periodic Inspection by Attributes ( Apply to Inspection of Stability for Productive Process) GB/T 5465.2 Graphical Symbols for Use on Electrical Equipment - Part 2: Graphical Symbols GB 8898 Audio, Video and Similar Electronic Apparatus-Safety Requirements GB/T 9383 Sound and Television Broadcast Receivers and Associated Equipment-immunity Characteristics - Limits and Methods of Measurement GB 13000-2010 Information Technology Universal Multiple Octet Coded Character Set (UCS) (ISO/IEC 10646: 2003 IDT) GB 13837 Sound and Television Broadcast Receivers and Associated Equipment-Radio Disturbance Characteristics-limits and Methods of Measurement GB/T 14960-1994 Technical Requirements and Methods of Measurement of Infrared Remote Control Radiation Unit for Television Broadcast Receivers GB 17625.1 Electromagnetic compatibility-Limits-Limits for Harmonic Current Emissions (Equipment Input Current≤16A per Phase) GB/T 17975.1 Information Technology-Generic Coding of Moving Pictures and Associated Audio Information-Part 1: Systems (GB / T 17975.12000, ISO/IEC 13818-1: 2007, MOD) GB/T 17975.2-2000 Information Technology-Generic Coding of Moving Picture and Associated Audio Information-Part 2: Video (ITU-TH.262: 1995,IDT) GB/T 17975.3-2002 Information Technology-Generic Coding of Moving Picture and Associated Audio Information--Part 3: Audio (ISO/IEC 13818-3: 1998, IDT) GB/T 20090.2-2006 Information Technology-Advanced Coding of Audio and Video-Part 2: Video GB 20600-2006 Framing Structure, Channel Coding and Modulation for Digital Television Terrestrial Broadcasting System GB/T 22122-2008 Methods of Measurement of Surround Audio for Digital TV GB/T 22726-2008 Specification for Multichannel Digital Audio Coding Technology GB/T 26685-2011 Methods of Measurement for Digital Terrestrial Television Receiver SJ/T 10514-1994 Technical Requirements and Methods of Measurement on Infrared Remote Control Unit for Television Broadcast Receivers SJ/T 10919-1996 Packaging of Colour Broadcasting TV Receivers SJ/T 11324-2006 Terminology of Digital Television Receiving Equipment SJ/T 11325-2006 Reliability Test Methods for Digital Television Receiver and Display Equipment SJ/T 11326-2006 Environmental Testing Methods for Digital Television Receiver and Display Equipment SJ/T 11327-2006 Specification for Interfaces for Digital Television Receiving Equipment-Part 1: Interface of Radio Frequency SJ/T 11329-2006 Specification of Interfaces for Digital Television Receiving Equipment-Part 3: Video Interface of Composite Video Blanking Synchronization SJ/T 11330-2006 Specification of Interfaces for Digital Television Receiving Equipment-Part 4: Video Interface of S-Video SJ/T 11331-2006 Specification of Interfaces for Digital Television Receiving Equipment-Part 5: Analog Audio Interface SJ/T 11332-2006 Specification of Interfaces for Digital Television Receiving Equipment-Part 6:Analog Video Interface of RGB SJ/T 11333-2006 Specification of Interfaces for Digital Television Receiving Equipment-Part 7: Interface of Video Component YPBPR SJ/T 11336-2006 Interface Specification For Conditional Access of Digital Television Receiver-Part 1-1: DT-CI Technical Specification SJ/T 11337-2006 Interface Specification for Conditional Access of Digital Television Receiver -- Part 1-1: DTV-CI Test Specification SJ/T 11376-2007 Interface Specification for Conditional Access of Digital Television Receiver-Part 2-1: UTI Technical Specification SJ/T 11377-2007 Interface Specification for Conditional Access of Digital Television Receiver-Part 2-2: UTI Test Specification GY/Z 175-2001 Specifications of Conditional Access System for Digital Television Broadcasting GY/T 230-2008 Specification of Service Information for Digital Television Broadcasting GY/T 231-2008 Specification of Electronic Programme Guide for Digital Television Broadcasting ETSI ETR 154 Digital Video Broadcasting(DVB); Implementation guidelines for the use of MPEG-2systems, video and audio in satellite and cable broadcasting applications ETSI TS 102 366 V1.2.1 Digital Audio Compression (AC-3, Enhanced AC-3) Standard 3 Terms and Abbreviations 3.1 Terms Terms and definitions established in SJ/T 11324-2006 and the following ones are applicable to this document. 3.1.1 Acceptable error free The uncorrected error code event within the specified time less than certain threshold when receiving signal . 3.2 Abbreviations AEF - Acceptable Error Free; CA - Conditional Access; CAT - Conditional Access Table; C/N - Carrier-Noise ratio; ECM - Entitement Control Message;

Contents of GB/T 26686-2011

Contents 1 Scope 2 Normative References 3 Terms and Abbreviations 3.1 Terms 3.2 Abbreviations 4 General Requirements 4.1 Normal Service Conditions 4.2 Graphic Symbols 4.3 Appearance Structure Requirements 4.4 Interface Requirements 5 Basic Technical Requirements 5.1 General 5.2 Radio Frequency Demodulation and Channel Decoding Requirements 5.3 Demultiplexing Requirements 5.4 Transport Stream Decoding Requirements 5.5 Audio and Video Characteristic Requirements 5.6 Power Supply Adaptability Requirements 5.7 Function Requirements 5.8 Remote Emitter Performance Requirements 5.9 Limit of Electromagnetic Compatibility Characteristic 5.10 Safety Requirements 5.11 Reliability Requirements 5.12 Environmental Test Requirements 5.13 Unpacking Inspection Requirements 5.14 Process Assembly Inspection Requirements 6 Inspection Method 6.1 Inspection Method of Graphic symbols for Equipment, Appearance and Structure, interface 6.2 Radio Frequency Demodulation and Channel Decoding Measurement Method 6.3 Demultiplexing Measurement Method 6.4 Transport Stream Decoding Measurement Method 6.5 Audio and Video Performance Measurement Method 6.6 Power Supply Adaptability Measurement Method 6.7 Function measurement Method 6.8 Measurement Method for Remote Performance and Remote Emitter 6.9 Measurement Method For Limit of Electromagnetic Compatibility Characteristic 6.10 Safety Inspection Method 6.11 Reliability Test Method 6.12 Environmental Test Method 6.13 Unpacking Inspection Method 6.14 Process Assembly Inspection 7 Inspection Rules 7.1 Qualification Inspection 7.2 Acceptance Inspection 7.3 Routine Inspection 8 Marking, Packing, Transport and Storage 8.1 Marking 8.2 Packing 8.3 Transport 8.4 Storage Appendix A (Normative) Acceptable Error Free Appendix B (Informative) Multipath Channel Model Appendix C (Informative) Conditional Access Interface Appendix D (Informative) Function of Remote Emitter Appendix E (Normative) Unpacking Inspection Content and Nonconformity Criteria Appendix F (Normative) Process Assembly Inspection Content and Nonconformity Criteria Appendix G (Normative) Environmental Test Content and Nonconformity Criteria Appendix H (Normative) Normal Temperature Performance Content and Nonconformity Criteria