2. The white grid background on the gray background is in the protective frame, which consists of white lines and squares on the gray background except for the large circle pattern and the rectangular color bar signals around the circle. Its horizontal direction is 17 grid, vertical direction is 13 grid, and the brightness of gray background is 30% when black turns white. It can be used to check geometric distortion, nonlinear distortion, dynamic convergence and color purity.
3. In-circle signals, there are 9 kinds of test and sign signals in the middle circle of the color TV test chart, which are arranged in order from top to bottom:
A TV station logo, indicating the name of the broadcasting station.
B, black and white square wave, used to check the transient response of TV brightness channel.
C, color signal, there are six color bars under the black and white square wave, and their order is yellow, green, green, purple, red and blue. Make TV viewers have a general impression of color, adjust hue and color saturation accordingly, and check whether the automatic achromatic circuit of TV set is normal.
E, white center reticle, white center reticle on black background, horizontal white line width is 1 line/field, * * * two lines; There are 1 vertical white lines in the center, 4 lines symmetrically distributed on both sides, and 6 lines * * *. Used to determine the center position of the whole image, check interlaced scanning and static convergence. Standard time mark, a defined line broadcast on a black rectangular block with Beijing standard time, is used by the audience for timing.
F, clarity line,140,220,300,380,500 lines * * * 5. Located below the standard time in the great circle, it is used to observe and adjust the definition and color saturation bandwidth of TV.
G, gray scale, below the definition line, there is a horizontal band that changes gradually from black to white, which is the test band for measuring gray scale. This kind of test strip is divided into six levels according to the amplitude of electric signal, which can check and adjust linearity and white balance.
H, which is also the display area of TV station logo, is blue, black or gray.
J, the color signal around the circle. Outside the test chart, there are 15 squares on the left and right, and each square has a certain brightness and color saturation value. Used to check the working performance of color decoder. PM5544 can be subdivided into 9 types (note: TV stations with background music in bold type, TV stations with * as video tapes, and "when playing music *" in brackets means that the test cards when playing music are video tapes).
1, DS, the font of time code is DS-Digital, the H area is gray, and there is usually background music.
Television stations used: Guangdong Radio and Television Station (the background music is a world-famous song, without Chinese or English station names), Shekou TV Station in Nanshan District of Shenzhen, Ankang TV Station (without time code), Pinghu TV Station (without time code), Wuzhou TV Station (only for piano music maintained on Tuesday afternoon) and Zaozhuang TV Station (without time code).
2. Paragraph 6, level 6 in F area, with background music and bold font of time code.
Television stations used: SMG (all channels have no Chinese and English station names and date and time codes displayed), Guang Zhi TV Station, Fujian TV Station (TV drama channel, no Chinese and English station names and date and time codes displayed), Shaoguan TV Station, Rudong TV Station, Xiangshan TV Station (no date and time codes displayed, 625/50 in area A and Chinese station names displayed in area H), Tonghua TV Station and BBC. Used TV stations: Southern TV Station (blue in area H) and Jiading TV Station.
3. Mechanical model, the font is pixel font, generally only English station name, and the test card is usually a video tape.
Use TV stations: Henan TV * (but only when music is playing), Hubei TV * (only when music is playing), Inner Mongolia TV * (only when music is playing, time code is displayed in Zone H), Hong Kong Asia TV (a TV), Egypt TV and Italy TV. Used TV stations: Liaoning TV Station, Chongqing TV Station, Zhejiang TV Station (five, six and seven sets, with date and time displayed in area H and CZTV displayed in area A), Xinjiang TV Station, sctv (satellite TV, date and time displayed in area H), Shandong TV Station, Shandong Education TV Station * ("CETV-SD" displayed in area A), Hebei TV Station (date code displayed in area H, Area B shows the name of China TV Station), Hainan TV Station (HN-A TV Station and H Chinese TV Station), jtv, BBC, China CCTV (A CCTV, H Beijing), TVB(A TVB, H time code), Shaanxi TV Station *, former Jinan Economic TV Station *, Jilin TV Station *, Heilongjiang TV Station *.
4, blue, H area is blue, and the font of time code is Arial.
Television stations used: Hohhot TV Station (area A shows "Hohhot Radio and Television Headquarters" without time code), Jinan TV Station, Hubei TV Station, Hebei TV Station, Tibet TV Station (area A shows Chinese TV station names), jtv (five sets without Chinese and English station names), Fujian Southeast TV Station (no Chinese and English station names), Sanming TV Station (area A shows Chinese station names) and Quanzhou TV Station (area A shows Chinese station names) There are no Chinese and English TV stations), Shaanxi TV Station * (SXBC is displayed in H area, and there is no time code), Foshan TV Station, Jieyang TV Station, Guangdong People's Broadcasting Station (TV Cruise Travel Channel, TV Pearl River Movie Channel), Heilongjiang TV Station, Qingdao TV Station, Changzhou TV Station (without Chinese and English TV stations), Shijiazhuang Radio and TV Station, Shanxi Radio and TV Station (except public channels and children's channels) and Shengzhou Radio and TV Station (H area) Xiaoshan TV Station (time code font is pixel font) and Weihai TV Station (area A shows "China" and area H shows "Weihai TV Station"), Linyi TV Station (without Chinese and English names), Qinhuangdao TV Station, Taiyuan TV Station (without Chinese and English names), Zibo TV Station, Jiaozuo TV Station, Nanyang TV Station (without Chinese and English names), Nantong TV Station (without Chinese and English names) and Zhuzhou TV Station (without Chinese and English names) Dalian TV Station (area H shows "Dalian Radio and Television Station"), Minhang TV Station (when playing music * the date and time are not displayed), Wenzhou TV Station, Qinghai TV Station, Yiwu TV Station, Shandong Education TV Station *, Jilin Education TV Station, Yinchuan TV Station, Dalian Jinzhou District TV Station (without Chinese and English TV station names), Changshu TV Station (without Chinese and English TV station names), Xuzhou TV Station (without Chinese and English TV station names) and Shandong Radio Station. Ningbo TV, Haining TV, Hefu TV (without Chinese and English names), Cai Qing guangxi traffic Channel (without Chinese and English names), Yang Guang Family Health Channel (without Chinese and English names), Liaocheng TV (without Chinese and English names), Shiyan TV (without Chinese and English names), Jiangyin TV (without Chinese and English names), Honghe TV (without Chinese and English names) and People's Health Channel (without Chinese and English names). There is no Chinese station name in Zone H), Tieling Radio and TV Station (no Chinese and English station name), Comoros TV Station (no station name, country name in Zone A), Zhongshan TV Station, Zhangjiagang TV Station (only Chinese station name and station number, and time code is displayed in Zone H), Hangang TV Station (no Chinese and English station name), Qitaihe TV Station (no Chinese station name in Zone H), ORTC and Chenzhou TV Station (no Chinese and English station name) Used TV stations: Yantai TV Station, Anhui Jiajia Shopping Channel (without Chinese and English TV station names), Yanbian TV Station (Korean and Chinese TV station names are displayed in Area A, YBTV is displayed in Area H), Nanchang TV Station (Chinese TV station names are displayed in Area A, and NCTV is displayed in Area B).
5, small, this font is quite special, between thick and not like thick.
And mechanical models are all international editions, and some are sixth-order. Use TV stations: Nanjing TV Station (with background music), Television Broadcasting Co., Ltd. (TVB), Haifeng TV Station, Brunei TV Station, Danish National TV Station, Bulgarian Radio and Television Station (only showing time code), Czech Radio and Television General Station, Cyprus Radio and Television Group, Cameroon TV Station, Ethiopian TV Station (without station name and time code), EBU UER Genf, RFO Guyane, Hanoi TV Station, Viet Nam [Central] TV Station (Grade 6), vtv Da Nang Sub-station (Grade 6), Calais Radio and Television Station, Taiping TV Station, Tsinghua TV Station (Grade 6), vtv Fuan Sub-station (font Tahoma), Fuan TV Station, Qin Mao TV Station and Norwegian Radio, Television and Film Headquarters. Used TV stations: Shanghai Education TV Station (CH-26 in Zone A, SETV in Zone H without date and time code), China CCTV, Heilongjiang TV Station (without time code), Zhejiang TV Station (with one set and two sets without date code), former Zhejiang Economic TV Station, Anhui TV Station, former Xinjiang Economic TV Station and Liaoning TV Station *.
6, white, H area is white, the font color is different.
Television stations used: Ningxia TV Station (which used to display the date and time), Taizhou TV Station (whose font in H area is yellow), Yichun TV Station * (whose font in H area is blue), Tianjin TV Station * (whose font in H area is black when playing music), Yuxi TV Station (whose font in H area is white), Yinan TV Station, Baoding Radio and TV Station (whose font in H area is blue) and Kunming Education TV Station (Chinese name only). Yanji TV Station (display date and time), Antu TV Station (display date and time), Wu 'an TV Station (display date and time), Longmen TV Station (display date and time), Yucheng TV Station and Gannan TV Station. Used TV stations: Shanxi TV Station (showing date and time), Xinjiang TV Station, former Liaoning Education TV Station (showing date and time in yellow in area H), Shenyang TV Station (1 999 May1showing date and time in red before), Jilin TV Station, Shandong Education TV Station, Linyi TV Station (showing date and time in blue in area H) and Qinghai TV Station (showing date and time in blue) Minhang TV Station (display date and time), Guangxi TV Station (display date and time), Beijing Cable TV Station, Jinhua TV Station (display date and time), Baishan TV Station, Tonghua TV Station (display date and time), Daqing TV Station (display date and time) and Hohhot TV Station (there is a blue box in area H, and the font color is white without date and time code).
7.Courier New, the time code font is Courier New, and the rest are the same as DS, with background music.
Television stations used: Shenzhen TV Station, Tongling Radio and Television Station * (the channel name is displayed in Area A, "Zhong Dingyun's Voice of Mountains and Waters" is displayed below Area A, and the station name is displayed in Area H). Second-hand TV Station: Xiamen TV Station (the name of China TV Station is displayed in Area A).
8. For NTSC 525, the F-zone definition lines are 0.25, 0.5, 1.0, 1.5 and 2.0MHZ.
Using TV stations: five major wireless TV stations in Taiwan Province Province (TV, CTV, CTV, MTV, main channel of public TV and its affiliated channels), Hakka TV, Taiwan Province Aboriginal TV and Dimote TV.
9. Two types of machinery, the originator of China PM5544 test card, are similar to the Dutch version of PM5544 test card, but its time code font is pixel font with background music.
Television stations used: Hangzhou TV Station (only used on Wednesdays, with background music), Wuyi TV Station, Daxie TV Station, Jiande TV Station (with background music), Suzhou TV Station (four or five sets of test cards have time codes, one to five sets of test cards have black background in H area, and black on both sides of H area), Lianyungang TV Station (without time codes and background music), Hue TV Station and Beilun TV Station. Used TV stations: Huzhou TV Station (no time code and background music), Xiangshan TV Station, Xiaoshan TV Station, Shengzhou Radio and Television General Station (one set, music is Oriental Bandari CD 1), Longyan TV Station (no time code), Pinghu TV Station (no time code and background music) and Haining TV Station.
Other versions, such as: Chaozhou TV is express and blue, six-step TV is integrated, Pudong TV is GB2097 and blue TV is integrated, Tonghua TV is six-step TV and mechanical TV is integrated, white TV is blue TV and small TV is integrated, and so on. Xianning TV station is GB2097, and small TV stations are integrated. These test cards all have background music.