GB/T 26686-2011 English PDF (GBT26686-2011)

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GB/T 26686-2011: General specification for digital terrestrial television receiver
GB/T 26686-2011
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 33.160.25
M 74
General Specification for Digital
Terrestrial Television Receiver
ISSUED ON. JUNE 16, 2011
IMPLEMENTED ON. NOVEMBER 1, 2011
Jointly issued by. General Administration of Quality Supervision,
Inspection and Quarantine (AQSIQ);
Standardization Administration (SAC) of the
People’s Republic of China.
Table of Contents
Foreword ... 4 
Introduction ... 5 
1 Scope ... 7 
2 Normative References ... 7 
3 Terms and Abbreviations ... 9 
3.1 Terms ... 9 
3.2 Abbreviations ... 10 
4 General Requirements ... 11 
4.1 Normal Service Conditions ... 11 
4.2 Graphic Symbols ... 12 
4.3 Appearance Structure Requirements ... 12 
4.4 Interface Requirements ... 12 
5 Basic Technical Requirements ... 12 
5.1 General ... 12 
5.2 Radio Frequency Demodulation and Channel Decoding Requirements ... 13 
5.3 Demultiplexing Requirements ... 20 
5.4 Transport Stream Decoding Requirements ... 21 
5.5 Audio and Video Characteristic Requirements... 25 
5.6 Power Supply Adaptability Requirements ... 31 
5.7 Function Requirements ... 32 
5.8 Remote Emitter Performance Requirements ... 35 
5.9 Limit of Electromagnetic Compatibility Characteristic ... 35 
5.10 Safety Requirements ... 36 
5.11 Reliability Requirements ... 36 
5.12 Environmental Test Requirements ... 36 
5.13 Unpacking Inspection Requirements ... 36 
5.14 Process Assembly Inspection Requirements ... 36 
6 Inspection Method ... 36 
6.1 Inspection Method of Graphic symbols for Equipment, Appearance and
Structure, interface ... 36 
6.2 Radio Frequency Demodulation and Channel Decoding Measurement
Method ... 36 
6.3 Demultiplexing Measurement Method ... 37 
6.4 Transport Stream Decoding Measurement Method ... 37 
6.5 Audio and Video Performance Measurement Method ... 37 
6.6 Power Supply Adaptability Measurement Method ... 39 
6.7 Function measurement Method ... 39 
6.8 Measurement Method for Remote Performance and Remote Emitter ... 39 
6.9 Measurement Method for Limit of Electromagnetic Compatibility
Characteristic ... 40 
6.10 Safety Inspection Method ... 40 
6.11 Reliability Test Method ... 40 
6.12 Environmental Test Method ... 40 
6.13 Unpacking Inspection Method ... 40 
6.14 Process Assembly Inspection... 40 
7 Inspection Rules ... 40 
7.1 Qualification Inspection ... 41 
7.2 Acceptance Inspection ... 43 
7.3 Routine Inspection ... 45 
8 Marking, Packing, Transport and Storage ... 47 
8.1 Marking ... 47 
8.2 Packing ... 48 
8.3 Transport ... 48 
8.4 Storage ... 48 
Appendix A (Normative) Acceptable Error-free ... 49 
Appendix B (Informative) Multipath Channel Model ... 50 
Appendix C (Informative) Conditional Access Interface ... 52 
Appendix D (Informative) Function of Remote Emitter ... 53 
Appendix E (Normative) Unpacking Inspection Content and Nonconformity
Criteria ... 54 
Appendix F (Normative) Process Assembly Inspection Content and
Nonconformity Criteria ... 57 
Appendix G (Normative) Environmental Test Content and Nonconformity Criteria
... 58 
Appendix H (Normative) Normal Temperature Performance Content and
Nonconformity Criteria ... 60 
Foreword
This Standard was drafted according to the rules specified in GB/T 1.1-2009.
This Standard was proposed by the Ministry of Industry and Information Technology
of the People's Republic of China.
This Standard shall be under the jurisdiction of National Standardization Technical
Committee on Audio, Video and Multimedia System and Equipment (SAC/TC 242).
Chief Drafting Organizations of this Standard. China Electronics Standardization
Institute, Shenzhen Saixi Information Technology Co., Ltd. (NELS), Shanghai Jiao
Tong University, Tsinghua University, Sichuan Changhong Electric Co., Ltd., TCL
Group Co., Ltd., Nanjing Panda Electronics Co., Ltd., National Digital Video, Audio
and Multimedia Products Quality Supervision and Inspection Center, Shanghai High
Definition Digital Technology Industrial Co., Ltd. Hisense Electronic Co., Ltd., Xiamen
Overseas Chinese Electronic Co., Ltd., No.3 Institute of China Electronics Technology
Group Corporation (Research Institute of TV and Electro-Acoustics), Tianjin
University, Beijing Peony Digital Video Electronic Co., Ltd., Skyworth Group Co., Ltd.,
Shanghai SVA (Group) Co., Ltd., Konka Group, Qingdao Haier Group, Shenzhen
State Micro Technology Co., Ltd., Hangzhou National Chip Science and Technology Co.,
Ltd., and Soyea Technology Co., Ltd.
Chief drafting staffs of this Standard. Zhao Xinhua, Zhang Subin, Hu Peng, Chen
Renwei, Sun Jun, Pan Changyong, Zhang Xia, Sun Qifeng, Yang Zhen, Wang
Xuehong, Xu Yan, Sun Yuemin, Wang Li, Cheng Xi, Wu Minghua, Lu Tiemin, Yu
Zhiyong, Di Yili, Wang Minghua, Gong Jun, Bo Liang, and Gao Ge.
Introduction
"Framing Structure, Channel Coding and Modulation for Digital Television Terrestrial
Broadcasting System" (GB 20600-2006) was issued on August 1, 2006 and has been
implemented since August 1,...