1. Black and white rectangular border: used to adjust the width of line and field scanning and the center position of the image. The aspect ratio of the test chart is the same as that of the color TV screen, which is also 4:3, so it can be used to check the aspect ratio of the TV. The vertical frame is used to check synchronization separation and clamping.
2. The gray background and white grid background are within the border protection frame. Except for the large circle graphics and the rectangular color bar signals around the circle, they are all composed of white line square patterns on a gray background. Its horizontal direction is 17 grids, the vertical direction is 13 grids, and the gray background brightness is 30 from black to white. It can be used to check geometric distortion, nonlinear distortion, dynamic convergence, color purity and other characteristics.
3. In-circle signals. There are 9 kinds of test and logo signals in the central circle of the color TV test chart. They are arranged from top to bottom:
A. TV station logo, Indicates the name of the broadcasting station.
B. Black and white square wave, used to check the transient response of the TV brightness channel.
C. Color signal, there are 6 color bars below the black and white square wave. They are arranged in the order of yellow, cyan, green, purple, red and blue. It allows TV viewers to have a general impression of color and adjust the hue and color saturation. It can also check whether the automatic decolorization circuit of the TV is normal.
E. White center cross line, white center cross line on black background, horizontal white line width 1 line/field, 2nd line; 1 vertical white line in the middle, symmetrically distributed on both sides 4 strands, ***6 strands. Used to center the entire image, check interlacing and static convergence. Standard time mark, Beijing Standard Time is broadcast in the black rectangular block on the clarity line for viewers to check the time.
F. Clarity line, 140, 220, 300, 380, 500 lines ***5 levels. Located below the standard time in the great circle, use it to observe and adjust the bandwidth of the sharpness and color saturation parts of the TV.
G. Gray scale. Below the sharpness line, there is a horizontal band that gradually goes from black to white. It is a test strip used to measure gray scale. This test strip is divided into 6 levels according to the electrical signal amplitude, and can check and adjust linearity and white balance.
H is also the TV station logo display area, which is blue, black or gray.
J. Color signals around the circle. Outside the test chart, there are 15 squares on the left and right respectively, each with a certain brightness and color saturation value. Used to check the performance of the color decoder. PM5544 can be subdivided into 9 models (Note: The TV stations in bold font have test card background music, the test cards of TV stations with * are video tapes, "when playing music *" in brackets means the test card when playing music is Video tape)
1. DS model, the time code font is DS-Digital, the H area is gray, and there is usually background music.
Using TV stations: Guangdong Radio and Television (background music is world famous music, no Chinese and English station names), Shenzhen Nanshan District Shekou TV Station, Ankang TV Station (no time code), Pinghu TV Station (no time code), Wuzhou TV station (only used during maintenance on Tuesday afternoon, background music is looped piano music), Zaozhuang TV station (no time code).
2. Six-level model, the F area is level six, with background music, and the time code font is bold.
Using TV stations: SMG (all channels have no Chinese and English channel names, date and time codes displayed), Vietnam Quang Tri TV, Fujian TV (TV drama channels, no Chinese and English channel names and no date and time codes are displayed) ), Shaoguan TV, Rudong TV, Xiangshan TV (no date and time code display, area A displays 625/50, area H displays the Chinese station name), Tonghua TV, BBC (British Broadcasting Corporation). Previous TV stations: Southern TV (H area is blue), Jiading TV.
3. Mechanical model, the font is pixel font, usually only has English channel name, and the test card is usually a video tape.
Use TV stations: Henan TV* (only used when playing music), Hubei TV* (only used when playing music), Inner Mongolia TV* (only used when playing music, H area has been displayed time code), Hong Kong Asia Television (ATV), Egyptian Television, Italian Television. TV stations used: Liaoning TV, Chongqing TV, Zhejiang TV (five, six, seven sets, H area displays date and time, A area displays CZTV), Xinjiang TV, Sichuan TV (satellite TV, H area displays date and time), Shandong TV, Shandong Educational TV Station* (area A displays "CETV-SD"), Hebei TV Station (area H displays the date code, area B displays the Chinese station name), Hainan TV Station (area A displays HN-TV, area H displays the Chinese station name), Jiangxi TV, British Broadcasting Corporation, China Central Television (area A displays CCTV, area H displays BEIJING), TVB (area A displays TVB, area H displays time code), Shaanxi TV*, former Jinan Economic Television*, Jilin Provincial Television* , Heilongjiang TV Station*.
4. Blue model, the H area is blue, and the time code font is Arial.
Use TV stations: Hohhot TV (area A displays "Hohhot Radio and Television Station", no time code), Jinan TV, Hubei TV, Hebei TV, Tibet TV (area A displays the Chinese station name), Jiangxi TV stations (five sets, no Chinese and English station names), Fujian Southeast TV Station (no Chinese and English station names), Sanming TV Station (area A shows the Chinese station name), Quanzhou TV Station (area A shows the Chinese station name), Zhejiang TV Station (including education Science and Technology Channel, no Chinese and English channel names), Shaanxi TV* (H area displays SXBC, no time code), Foshan TV, Jieyang TV, Guangdong People's Broadcasting Station (TV Cruise Travel Channel, TV Pearl River Movie Channel), Heilongjiang TV, Qingdao TV Station, Changzhou TV Station (no Chinese and English station names), Shijiazhuang Radio and Television Station, Shanxi Radio and Television Station (except public channels and children's channels), Shengzhou Radio and Television Station (H area is black), Shaoxing Keqiao District Broadcasting Station Television Station, Anji County Radio and Television Station, Xiaoshan TV Station (the time code font is pixel font), Weihai TV Station (area A displays "China", area H displays "Weihai TV Station"), Linyi TV Station (no Chinese and English station names) , Qinhuangdao TV Station, Taiyuan TV Station (no Chinese and English station names), Zibo TV Station, Jiaozuo TV Station, Nanyang TV Station (no Chinese and English station names), Nantong TV Station (no Chinese and English station names), Zhuzhou TV Station (no Chinese and English station names), Xingtai TV Station (no Chinese and English station names, sometimes with background music), Jilin TV Station (the font in the H area is yellow), Dalian TV Station (the H area displays "Dalian Radio and Television Station"), Minhang TV Station (no date and time display when playing music*) ), Wenzhou TV, Qinghai TV, Yiwu TV, Shandong Education TV*, Jilin Education TV, Yinchuan TV, Dalian Jinzhou District TV (no Chinese and English name), Changshu TV (no Chinese and English name), Xuzhou TV (no Chinese and English channel names), Shandong Radio and Television (no Chinese and English channel names), Ningbo TV, Haining TV, Hefei TV (no Chinese and English channel names), Qingcai Guangxi Traffic Channel (no Chinese and English channel names), CCTV Family Health Channel (no channel name in Chinese or English), Liaocheng TV (no channel name in Chinese or English), Shiyan TV (no channel name in Chinese or English), Jiangyin TV (no channel name in Chinese or English), Honghe TV (no channel name in Chinese or English) , People's Health Channel (CHTV is displayed in area A, no Chinese channel name in area H), Tieling Radio and Television (no Chinese and English channel names), Comoros TV (no channel name, country name is displayed in area A), Zhongshan TV, Zhangjiagang TV ( Only Chinese channel name and number, time code displayed in H area), Handan TV Station (no Chinese and English channel name), Qitaihe TV Station (Chinese station name displayed in H area), ORTC, Chenzhou TV Station (no Chinese and English channel name), Fengxian TV stations (only the Chinese station name is displayed in the H area), Mudanjiang TV (the Chinese station name is displayed in the A area), Jiamusi TV (no Chinese and English station names), Liaoyang TV, Chengde TV, Zhangjiakou TV, Qiandongnan TV, Longkou TV, Rizhao TV (No Chinese or English channel name). Previous TV stations: Yantai TV, Anhui Jiajia Shopping Channel (no Chinese and English channel names), Yanbian TV (area A displays the Korean and Chinese channel names, area H displays YBTV), Nanchang TV (area A displays the Chinese channel name, area B displays the Chinese channel name) Display NCTV).
5. Small style, this font is quite special, it is between boldface but not like boldface.
It is the same international version as the mechanical model, and some are sixth level.
TV stations used: Nanjing TV (used to have background music), Television Broadcasting Co., Ltd. (TVB), SITC TV, Brunei TV, Danish National TV, Bulgarian Radio and Television (only time code is displayed), Czech Radio and Television, Cyprus Broadcasting Television Group, Cameroon Television, Ethiopian Television (no channel name and time code), EBU UER Genf, RFO Guyane, Hanoi Television, Vietnam [Central] Television (Level 6), Vietnam Television Danang Branch (Level 6), Calais Broadcasting TV station, Taiping TV station, Thanh Hoa TV station (sixth level), Vietnam TV Phu Yen branch (the font is Tahoma), Phu Yen TV station, Can Tho TV station, Norwegian Radio, Television and Film Service. Previous TV stations: Shanghai Educational TV (area A displays CH-26, area H displays SETV, no date and time code), China Central Television, Heilongjiang TV (no time code), Zhejiang TV (1st and 2nd sets, no date code) ), former Zhejiang Economic Television, Anhui Television, former Xinjiang Economic Television, Liaoning Television*.
6. White model, the H area is white and the font color is different.
Use TV stations: Ningxia TV (used to display date and time), Taizhou TV (the font in the H area is yellow), Yichun TV* (the font in the H area is blue), Tianjin TV* (when playing music, The font in the H area is black), Yuxi TV Station (the font in the H area is white), Yinan TV Station, Baoding Radio and Television Station (the date and time are displayed, the font in the H area is blue), Kunming Education Television (only the Chinese channel name), Putian TV Station, 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. Former TV stations: Shanxi TV (display date and time), Xinjiang TV, the former Liaoning Education TV (display date and time, the font in the H area is yellow), Shenyang TV (before May 1, 1999, display the date and time, the font in the H area is yellow) red), Jilin Provincial TV Station, Shandong Education TV Station, Linyi TV Station (display date and time, H area font is blue), Qinghai TV Station (display date and time), Minhang TV Station (display date and time), Guangxi TV Station (display date and time), Beijing Cable TV, Jinhua TV (display date and time), Baishan TV, Tonghua TV (display date and time), Daqing TV (display date and time), Hohhot TV (H area with blue frame, font color is white, no date and time code ), Yanbian TV satellite channel (the H area displays CYS).
7. Courier New model, the time code font is Courier New, and the rest is the same as the DS model, with background music.
Use TV stations: Shenzhen TV Station, Tongling Radio and Television Station* (area A displays the channel name, area A displays "Zhong Ding Liu Yun Shan Shui Qing Yin", area H displays the station name). Former TV station: Xiamen TV (area A displays the Chinese station name).
8. NTSC 525 line model, F area definition line is 0.25, 0.5, 1.0, 1.5, 2.0MHZ.
Using TV stations: Taiwan’s five major wireless TV stations (Taiwan TV, China Television, China Television, FTV, PTV main channel and its affiliated channels), Hakka TV, Taiwan Aboriginal Television, DimoTV
9. Mechanical model 2. This is the originator of China's PM5544 test card. It is similar to the Dutch version of PM5544 test card, but its time code font is pixel font and has background music.
Use TV stations: Hangzhou TV (only used on Wednesdays, used to have background music), Wuyi TV, Daxie TV, Jiande TV (used to have background music), Suzhou TV (four or five sets had time code, the H area of ??test cards from sets 1 to 5 has black text on a white background, and both sides of the H area are black), Lianyungang TV Station (without time code and background music), Hue TV Station, and Beilun TV Station.
Previous TV stations: Huzhou TV (no time code and background music), Xiangshan TV, Xiaoshan TV, Shengzhou Radio and Television Station (one set, the music is "Oriental Bandari" CD1), Longyan TV (no time code), Pinghu TV (No time code and background music), Haining TV Station.
Other versions, such as: Chaozhou TV station has Courier model and blue model, six-level model combined into one, Pudong TV station has GB2097 and blue model combined into one, Tonghua TV station has six-level model and mechanical 2 Model and white model are combined into one, Yuyao TV is blue model, small model is combined into one, etc., Xianning TV is GB2097 and small model is combined into one, these test cards all have background music.