WO2019047617A1 - 电路板、电视信号接收系统及电视机 - Google Patents

电路板、电视信号接收系统及电视机 Download PDF

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Publication number
WO2019047617A1
WO2019047617A1 PCT/CN2018/095747 CN2018095747W WO2019047617A1 WO 2019047617 A1 WO2019047617 A1 WO 2019047617A1 CN 2018095747 W CN2018095747 W CN 2018095747W WO 2019047617 A1 WO2019047617 A1 WO 2019047617A1
Authority
WO
WIPO (PCT)
Prior art keywords
solder joint
circuit
ground
satellite
signal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2018/095747
Other languages
English (en)
French (fr)
Inventor
李志强
李建伟
吴国兵
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen TCL New Technology Co Ltd
Original Assignee
Shenzhen TCL New Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen TCL New Technology Co Ltd filed Critical Shenzhen TCL New Technology Co Ltd
Publication of WO2019047617A1 publication Critical patent/WO2019047617A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/426—Internal components of the client ; Characteristics thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/455—Demodulation-circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/46—Receiver circuitry for the reception of television signals according to analogue transmission standards for receiving on more than one standard at will
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/20—Adaptations for transmission via a GHz frequency band, e.g. via satellite

Definitions

  • the present application relates to the field of television technology, and in particular, to a circuit board, a television signal receiving system, and a television set.
  • the main object of the present application is to provide a circuit board intended to improve the compatibility of the board.
  • the circuit board proposed by the present application comprises a board body, and one side of the board body is provided with a satellite tuner signal foot soldering point, a ground television tuner signal foot soldering point, and a wireless television tuner signal foot.
  • solder joints solder joints, cable TV tuner signal solder joints, RF switch circuit solder joints, satellite demodulation circuit solder joints, satellite decode circuit solder joints, ground demodulation circuit solder joints, ground decode circuit solder joints and control circuit solder joints
  • the output end of the satellite demodulation circuit solder joint is connected to the input end of the satellite decoding circuit solder joint, and the output end of the satellite decoding circuit solder joint is connected to the first input end of the control circuit solder joint;
  • An output end of the solder joint of the RF switch circuit is connected to an input end of the ground demodulation circuit solder joint, and an output end of the ground demodulation circuit solder joint is connected to an input end of the ground decoding circuit solder joint,
  • An output of the ground decoding circuit solder joint is coupled to a second input of the control circuit solder joint.
  • the satellite tuner signal solder joint is the same solder joint as the wireless television tuner signal solder joint; the terrestrial television tuner signal solder joint and the cable high frequency
  • the head signal solder joints are the same solder joint.
  • the board body is internally provided with a radio frequency signal line
  • the radio frequency signal line has an impedance of 75 ohms
  • the radio frequency signal line has a line width of 4 to 30 mils
  • the radio frequency signal line is packaged.
  • the ground spacing is between 5 and 26 mils.
  • the radio frequency signal line has a dangling line of less than 3 mils.
  • the present application also provides a television signal receiving system, including a satellite tuner, a terrestrial television tuner, a satellite demodulation circuit, a satellite decoding circuit, a ground demodulation circuit, a ground decoding circuit, a control circuit, and a circuit board as described above
  • the circuit board includes a board body, and one side of the board body is provided with a satellite tuner signal foot soldering point, a ground television tuner signal foot soldering point, a wireless television tuner signal foot soldering point, and a cable television high.
  • An output end of the satellite demodulation circuit solder joint is connected to an input end of the satellite decoding circuit solder joint, and an output end of the satellite decoding circuit solder joint is connected to a first input end of the control circuit solder joint;
  • An output end of the solder joint of the RF switch circuit is connected to an input end of the ground demodulation circuit solder joint, and an output end of the ground demodulation circuit solder joint is connected to an input end of the ground decoding circuit solder joint, the ground An output end of the decoding circuit solder joint is connected to a second input end of the control circuit solder joint;
  • a signal pin of the satellite tuner is soldered to the satellite tuner signal solder joint, and a signal pin of the terrestrial television tuner is soldered to the ground TV tuner signal solder joint, the satellite solution a grounding circuit is soldered to the satellite demodulation circuit, the satellite decoding circuit is soldered to the satellite decoding circuit, and the ground demodulation circuit is soldered to the ground demodulation circuit, and the ground decoding circuit is Welding with the ground decoding circuit, the control circuit is soldered to the control circuit; the signal pin of the satellite tuner is connected to the input end of the satellite demodulation circuit through a first jumper, The signal pin of the terrestrial television tuner is connected to the input of the terrestrial demodulation circuit via a second jumper.
  • the satellite tuner signal solder joint is the same solder joint as the wireless television tuner signal solder joint; the terrestrial television tuner signal solder joint and the cable high frequency
  • the head signal solder joints are the same solder joint.
  • the radio frequency signal line is disposed inside the board body, the impedance of the radio frequency signal line is 75 ohms, the line width of the radio frequency signal line is between 4 and 30 mils, and the grounding interval of the radio frequency signal line is 5 To 26 mils.
  • the radio frequency signal line has a dangling line of less than 3 mils.
  • the television signal receiving system further includes a first shielding cover, the first shielding cover is sleeved on the satellite tuner, the terrestrial television tuner, the satellite demodulation circuit, and the And a ground demodulation circuit for shielding mutual interference between the satellite tuner, the terrestrial television tuner, the satellite demodulation circuit and the terrestrial demodulation circuit.
  • the present application further provides a television signal receiving system, including a wireless television tuner, a cable television tuner, a radio frequency switching circuit, a ground demodulation circuit, a ground decoding circuit, a control circuit, and a circuit board as described above;
  • the circuit board comprises a board body, and one side of the board body is provided with a satellite high frequency head signal foot soldering point, a ground television high frequency head signal foot soldering point, a wireless television high frequency head signal foot soldering point, a cable television high frequency head signal Foot solder joint, RF switch circuit solder joint, satellite demodulation circuit solder joint, satellite decoding circuit solder joint, ground demodulation circuit solder joint, ground decoding circuit solder joint and control circuit solder joint;
  • An output end of the satellite demodulation circuit solder joint is connected to an input end of the satellite decoding circuit solder joint, and an output end of the satellite decoding circuit solder joint is connected to a first input end of the control circuit solder joint;
  • An output end of the solder joint of the RF switch circuit is connected to an input end of the ground demodulation circuit solder joint, and an output end of the ground demodulation circuit solder joint is connected to an input end of the ground decoding circuit solder joint, the ground An output end of the decoding circuit solder joint is connected to a second input end of the control circuit solder joint;
  • the signal pin of the wireless television tuner is soldered to the signal point of the wireless television tuner, and the signal pin of the cable tuner is soldered to the signal pin of the cable tuner.
  • the RF switching switch circuit is soldered to the RF switching switch circuit, the ground demodulation circuit is soldered to the ground demodulation circuit, and the ground decoding circuit and the ground decoding circuit are soldered, the control The circuit is soldered to the control circuit; the signal pin of the wireless television tuner is connected to the first input end of the radio frequency switching circuit through a third jumper, and the signal pin of the cable tuner passes The fourth jumper is connected to the second input end of the radio frequency switching switch circuit.
  • the satellite tuner signal solder joint is the same solder joint as the wireless television tuner signal solder joint; the terrestrial television tuner signal solder joint and the cable high frequency
  • the head signal solder joints are the same solder joint.
  • the board body is internally provided with a radio frequency signal line
  • the radio frequency signal line has an impedance of 75 ohms
  • the radio frequency signal line has a line width of 4 to 30 mils
  • the radio frequency signal line is packaged.
  • the ground spacing is between 5 and 26 mils.
  • the radio frequency signal line has a dangling line of less than 3 mils.
  • the television signal receiving system further includes a second shielding cover, the shielding cover is sleeved on the wireless television tuner, the cable television tuner, the radio frequency switching circuit, and the satellite Demodulating circuit and said ground demodulation circuit for shielding said wireless television tuner, said cable radio tuner, said radio frequency switching switch circuit, said satellite demodulation circuit and said ground demodulation circuit Mutual interference between each other.
  • the present application further provides a television signal receiving system, including a terrestrial television tuner, a ground demodulation circuit, a ground decoding circuit, a control circuit, and a circuit board as described above;
  • the circuit board includes a board body, and the board body
  • One side is equipped with a satellite tuner signal solder joint, a ground TV tuner signal foot solder joint, a wireless TV tuner signal foot solder joint, a cable TV tuner signal foot solder joint, a radio frequency switch circuit solder joint, Satellite demodulation circuit solder joint, satellite decoding circuit solder joint, ground demodulation circuit solder joint, ground decoding circuit solder joint and control circuit solder joint;
  • An output end of the satellite demodulation circuit solder joint is connected to an input end of the satellite decoding circuit solder joint, and an output end of the satellite decoding circuit solder joint is connected to a first input end of the control circuit solder joint;
  • An output end of the solder joint of the RF switch circuit is connected to an input end of the ground demodulation circuit solder joint, and an output end of the ground demodulation circuit solder joint is connected to an input end of the ground decoding circuit solder joint, the ground An output end of the decoding circuit solder joint is connected to a second input end of the control circuit solder joint;
  • a signal pin of the terrestrial television tuner is soldered to the ground TV tuner signal solder joint, the ground demodulation circuit is soldered to the ground demodulation circuit, and the ground decoding circuit and the ground are Decoding circuit solder joint welding, the control circuit is soldered to the control circuit; the signal pin of the terrestrial television tuner is connected to the input end of the ground demodulation circuit through a fifth jumper.
  • the satellite tuner signal solder joint is the same solder joint as the wireless television tuner signal solder joint; the terrestrial television tuner signal solder joint and the cable high frequency
  • the head signal solder joints are the same solder joint.
  • the board body is internally provided with a radio frequency signal line
  • the radio frequency signal line has an impedance of 75 ohms
  • the radio frequency signal line has a line width of 4 to 30 mils
  • the radio frequency signal line is packaged.
  • the ground spacing is between 5 and 26 mils.
  • the present application further provides a television set comprising the circuit board as described above, the circuit board comprising a board body, one side of the board body is provided with a satellite tuner signal solder joint, and the ground television tuner signal foot Solder joints, wireless TV tuner signal solder joints, cable TV tuner signal solder joints, RF switch circuit solder joints, satellite demodulation circuit solder joints, satellite decode circuit solder joints, ground demodulation circuit solder joints, Ground decoding circuit solder joints and control circuit solder joints;
  • An output end of the satellite demodulation circuit solder joint is connected to an input end of the satellite decoding circuit solder joint, and an output end of the satellite decoding circuit solder joint is connected to a first input end of the control circuit solder joint;
  • An output end of the solder joint of the RF switch circuit is connected to an input end of the ground demodulation circuit solder joint, and an output end of the ground demodulation circuit solder joint is connected to an input end of the ground decoding circuit solder joint, the ground An output of the decoding circuit solder joint is coupled to a second input of the control circuit solder joint.
  • the satellite tuner signal solder joint is the same solder joint as the wireless television tuner signal solder joint; the terrestrial television tuner signal solder joint and the cable high frequency
  • the head signal solder joints are the same solder joint.
  • the board body is internally provided with a radio frequency signal line
  • the radio frequency signal line has an impedance of 75 ohms
  • the radio frequency signal line has a line width of 4 to 30 mils
  • the radio frequency signal line is packaged.
  • the ground spacing is between 5 and 26 mils.
  • the technical solution of the present application is to provide a satellite high-frequency signal foot soldering point, a ground television high-frequency signal foot soldering point, a wireless television high-frequency head signal soldering point, and a cable TV high-frequency head signal soldering point on a circuit board body.
  • the corresponding satellite tuner, terrestrial TV tuner, terrestrial demodulation circuit, terrestrial decoding circuit, satellite demodulation circuit, satellite decoding circuit and control circuit are soldered on the circuit board to meet the requirements of European models.
  • the corresponding wireless TV tuner, cable TV tuner, RF switching switch circuit, ground demodulation circuit, ground decoding circuit and control circuit are mounted on the circuit board to be made to meet the Latin American model
  • the demanded television signal receiving system; the corresponding terrestrial television tuner, the ground demodulation circuit, the bottom decoding circuit and the control circuit are mounted on the circuit board to form a television signal receiving system that meets the requirements of the North American national model.
  • the board can adapt to the TV models of European countries, the TV models of Latin America and the TV sets of North American countries.
  • FIG. 1 is a schematic structural view of an embodiment of a circuit board of the present application.
  • FIG. 2 is a schematic structural diagram of a first embodiment of a television signal receiving system according to the present application.
  • FIG. 3 is a schematic structural diagram of a second embodiment of a television signal receiving system according to the present application.
  • FIG. 4 is a schematic structural diagram of a third embodiment of a television signal receiving system according to the present application.
  • FIG. 5 is a schematic structural diagram of a circuit of a fourth embodiment of a television signal receiving system of the present application.
  • first”, “second” and the like in the present application are for the purpose of description only, and are not to be construed as indicating or implying their relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” and “second” may include at least one of the features, either explicitly or implicitly.
  • the technical solutions between the various embodiments may be combined with each other, but must be based on the realization of those skilled in the art, and when the combination of the technical solutions is contradictory or impossible to implement, it should be considered that the combination of the technical solutions does not exist. Nor is it within the scope of protection required by this application.
  • the application proposes a circuit board.
  • the circuit board includes a board body (not shown), and one side of the board body is provided with a satellite tuner signal foot solder joint 10 and a ground television tuner signal foot solder joint.
  • a satellite tuner signal foot solder joint 10 and a ground television tuner signal foot solder joint.
  • wireless TV high frequency head signal solder joint 20 cable TV high frequency head signal solder joint 30, RF switch circuit solder joint 70, satellite demodulation circuit solder joint 50, satellite decoding circuit solder joint 60, ground demodulation Circuit solder joint 80, ground decode circuit solder joint 90 and control circuit solder joint 100.
  • the output end of the satellite demodulation circuit solder joint 50 is connected to the input end of the satellite decoding circuit solder joint 60, and the output end of the satellite decoding circuit solder joint 60 is connected to the first input end of the control circuit solder joint 100; the RF switching switch circuit solder joint The output end of 70 is connected to the input end of the ground demodulation circuit solder joint 80, and the output end of the ground demodulation circuit solder joint 80 is connected to the input end of the ground decoding circuit solder joint 90, and the output end and control of the ground decoding circuit solder joint 90 The second input of the circuit pad 100 is connected.
  • the satellite tuner 11, the terrestrial television tuner 41, the satellite demodulation circuit 51, the satellite decoding circuit 61, the terrestrial demodulation circuit 81, the terrestrial decoding circuit 91, and the control circuit 101 are soldered to the positions corresponding to the respective pads. It is possible to assemble a television signal receiving system adapted to the TV models of European countries.
  • the wireless television tuner 21, the cable television tuner 31, the radio frequency switching switch circuit 71, the ground demodulation circuit 81, the ground decoding circuit 91, and the control circuit 101 are soldered to the positions corresponding to the respective solder joints, and can be assembled and adapted to Latin America. TV signal receiving system for national TV models.
  • the board can adapt to the TV models of European countries, the TV models of Latin America and the TV sets of North American countries.
  • the satellite tuner signal solder joint 10 and the wireless television tuner signal solder joint 20 are the same solder joint; the terrestrial television tuner signal solder joint 40 and the cable television The high frequency head signal solder joint 30 is the same solder joint.
  • the satellite tuner signal solder joint 10 and the wireless television tuner signal solder joint 20 are set to the same solder joint, and the ground television tuner signal solder joint 40 and the cable TV tuner signal are soldered.
  • Point 30 is set to the same solder joint and will not affect the work of the corresponding TV.
  • a plurality of parameters of the circuit board are also set.
  • the radio frequency signal line (not shown) is disposed inside the board body, the impedance of the radio frequency signal line is 75 ohms, the line width of the radio frequency signal line is between 4 and 30 mils, and the grounding interval of the radio frequency signal line is Between 5 and 26 mils.
  • the radio frequency signal line is also set below 3 mils.
  • the present application also proposes a television signal receiving system suitable for a television model of a European country.
  • the television signal receiving system includes a satellite tuner 11, a terrestrial television tuner 41, a satellite demodulation circuit 51, a satellite decoding circuit 61, a terrestrial demodulation circuit 81, a terrestrial decoding circuit 91, a control circuit 101, and The board as described above.
  • the signal pin of the satellite tuner 11 is soldered to the satellite tuner signal solder joint 10
  • the signal pin of the terrestrial television tuner 41 is soldered to the ground TV tuner signal solder joint 40
  • the satellite demodulation circuit 51 and the satellite solution The welding circuit 50 is soldered
  • the satellite decoding circuit 61 is soldered to the satellite decoding circuit solder joint 60
  • the ground demodulation circuit 81 is soldered to the ground demodulation circuit solder joint 80
  • the ground decoding circuit 91 is soldered to the ground decoding circuit solder joint 90
  • the control circuit is controlled.
  • 101 is soldered to the control circuit solder joint 100.
  • the signal pin of the satellite tuner 11 is connected to the input end of the satellite demodulation circuit 51 through the first jumper, and the signal pin of the terrestrial television tuner 41 passes through the second jumper and the ground demodulation circuit 81. The input is connected.
  • the television signal receiving system further includes a first shield cover, in order to prevent mutual interference between the satellite tuner 11, the terrestrial television tuner 41, the satellite demodulation circuit 51, and the terrestrial demodulation circuit 81.
  • the shielding cover is sleeved on the satellite tuner 11, the terrestrial television tuner 41, the satellite demodulation circuit 51 and the ground demodulation circuit 81 to connect the satellite tuner 11, the terrestrial television tuner 41, and the satellite demodulation circuit.
  • 51 and the ground demodulation circuit 81 are divided into independent spaces to achieve shielding isolation.
  • the present application also proposes a television signal receiving system suitable for a television model of a Latin American country.
  • the television signal receiving system includes a wireless television tuner 21, a cable television tuner 31, a radio frequency switching switch circuit 71, a ground demodulation circuit 81, a terrestrial decoding circuit 91, a control circuit 101, and the foregoing. Circuit board.
  • the signal pin of the wireless television tuner 21 is soldered to the wireless television tuner signal solder joint 20
  • the signal pin of the cable tuner 31 is soldered to the cable radio button signal solder joint 30
  • the RF switching switch circuit 71 is The RF switching switch circuit solder joint 70 is soldered
  • the ground demodulation circuit 81 is soldered to the ground demodulation circuit solder joint 80
  • the ground decoding circuit 91 is soldered to the ground decoding circuit solder joint 90
  • the control circuit 101 is soldered to the control circuit solder joint 100.
  • the radio frequency signal is prevented from being disturbed.
  • the signal pin of the wireless television tuner 21 is connected to the first input end of the radio frequency switching switch circuit 71 through the third jumper, and the signal pin of the cable radio frequency head 31 passes the fourth jumper and the radio frequency switch.
  • the second input of circuit 71 is connected.
  • the television signal receiving system further includes a second shielding cover, the second shielding cover is sleeved on the cable television tuner 31, the wireless television tuner 21, the radio frequency switching circuit 71, the satellite demodulation circuit 51 and the ground demodulation circuit 81 to set the wireless television high
  • the frequency head 21, the cable television tuner 31, the radio frequency switching circuit 71, the satellite demodulation circuit 51, and the terrestrial demodulation circuit 81 are divided into independent spaces to achieve shielding isolation.
  • the present application also proposes a television signal receiving system suitable for a North American national television model.
  • the above television signal receiving system includes a terrestrial television tuner 41, a terrestrial demodulation circuit 81, a terrestrial decoding circuit 91, a control circuit 101, and a circuit board as described above.
  • the signal foot of the terrestrial television tuner 41 is soldered to the ground television tuner signal solder joint 40, the ground demodulation circuit 81 is soldered to the ground demodulation circuit solder joint 80, and the ground decoding circuit 91 is soldered to the ground decoding circuit solder joint 90.
  • the control circuit 101 is soldered to the control circuit pads 100.
  • the radio frequency signal is prevented from being disturbed.
  • the signal pin of the terrestrial television tuner 41 is connected to the input terminal of the terrestrial demodulation circuit 81 via the fifth jumper.
  • the RF switching switch circuit 71 may include a radio frequency switching switch chip U1, a first diode D1, a second diode D2, a first inductor L1, a second capacitor C2, and a third capacitor. C3, fourth capacitor C4, first resistor R1 and second resistor R2, wherein the radio frequency switch chip U1 includes a first input pin RF1, a second input pin RF2, a power pin VCC, an output pin RFC, and a first insertion detecting pin. T1 and the second insertion detecting leg T2.
  • the satellite demodulation circuit 51 includes a satellite demodulation chip U2.
  • the input pin of the satellite demodulation chip U2 (not shown) is the input end of the satellite demodulation circuit 51, and the output pin of the satellite demodulation chip U2 (not shown). It is the output of the satellite demodulation circuit 51.
  • the satellite decoding circuit 61 includes a satellite decoding chip U3.
  • the input pin (not shown) of the satellite decoding chip U3 is an input end of the satellite decoding circuit 61.
  • the output pin (not shown) of the satellite decoding chip U3 is a satellite decoding circuit 61. The output.
  • the ground demodulation circuit 81 includes a ground demodulation chip U4, and an input pin (not shown) of the ground demodulation chip U4 is an input terminal of the ground demodulation circuit 81, and an output pin of the ground demodulation chip U4 (not shown) It is the output of the ground demodulation circuit 81.
  • the ground decoding circuit 91 includes a ground decoding chip U5.
  • the input pin (not shown) of the ground decoding chip U5 is an input end of the ground decoding circuit 91, and an output pin (not shown) of the ground decoding chip U5 is a ground decoding circuit 91. The output.
  • the television signal receiving system further includes a first capacitor C1, a fifth capacitor C5, a sixth capacitor C6, a seventh capacitor C7, a third resistor R3, a second inductor L2, a third inductor L3, a fourth inductor L4, and a third diode Tube D3 and fourth diode D4.
  • the signal pin of the satellite tuner 11, the signal pin of the wireless television tuner 21, the first end of the first capacitor C1, the first end of the first inductor L1, the cathode of the first diode D1, and the The anode of the diode D2 and the first end of the second capacitor C2 are interconnected.
  • the second end of the first capacitor C1 is connected to the input pin of the satellite decoding chip U2, and the output pin of the satellite decoding chip U2 and the satellite demodulation chip U3
  • the input pin is connected, and the second end of the first inductor L1, the anode of the first diode D1, and the cathode of the second diode D2 are both grounded.
  • the second end of the second capacitor C2 is connected to the second input pin RF2 of the radio frequency switching switch chip U1, the second insertion detecting pin T2 of the radio frequency switching switch chip U1, the second end of the first resistor R1, and the third capacitor C3
  • the first end of the first resistor R1 is configured as an input insertion detecting signal SW; the first input pin RF1 of the radio frequency switching switch chip U1, the power supply pin of the radio frequency switching switch chip U1, and the second end of the second resistor R2
  • the first end of the fourth capacitor C4 is interconnected, the first end of the second resistor R2 is set as the input chip power supply VCC; the output pin RFC of the radio frequency switch chip U1, the input pin of the ground decoding chip U4, and the third resistor R3
  • the second end of the second end and the third inductor L3 are interconnected, and the output pin of the ground decoding chip U4 is connected to the input pin of the ground decoding chip U4; the grounding pin GND of the RF switch chip,
  • the present application also provides a television set including the circuit board as described above.
  • the specific structure of the circuit board refers to the above embodiment. Since the television set adopts all the technical solutions of all the above embodiments, it has at least the above-mentioned embodiments. All technical effects brought about by the technical solutions of the embodiments are not described herein again.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

本申请公开一种电路板、电视信号接收系统及电视机，其中，电路板包括板体，板体的一侧设有卫星高频头信号脚焊点、地面电视高频头信号脚焊点、无线电视高频头信号脚焊点、有线电视高频头信号脚焊点、射频切换开关电路焊点、卫星解调电路焊点、卫星解码电路焊点、地面解调电路焊点、地面解码电路焊点；卫星解调电路焊点的输出端与卫星解码电路焊点的输入端连接，卫星解码电路焊点的输出端与控制电路焊点的第一输入端连接；射频切换开关电路焊点的输出端与地面解调电路焊点的输入端连接，地面解调电路焊点的输出端与地面解码电路焊点的输入端连接，地面解码电路焊点的输出端与控制电路焊点的第二输入端连接。

Description

电路板、电视信号接收系统及电视机
技术领域
本申请涉及电视机技术领域，特别涉及一种电路板、电视信号接收系统及电视机。
背景技术
目前全球各个国家的电视接收制式和高频头接收端子要求不同，比如欧洲需要卫星和地面广播电视，需要使用一个卫星高频头和地面广播接收头；而拉美国家需要两个射频接收头；北美国家只需要一个地面广播接收头。因此目前产品需根据各个国家的制式和要求分别设计不同的PCB主板，导致PCB主板种类很多，兼容性差，增加设计和维护成本。
申请内容
本申请的主要目的是提供一种电路板，旨在提高该电路板的兼容性。
为实现上述目的，本申请提出的电路板包括板体，所述板体的一侧设有卫星高频头信号脚焊点、地面电视高频头信号脚焊点、无线电视高频头信号脚焊点、有线电视高频头信号脚焊点、射频切换开关电路焊点、卫星解调电路焊点、卫星解码电路焊点、地面解调电路焊点、地面解码电路焊点及控制电路焊点；所述卫星解调电路焊点的输出端与所述卫星解码电路焊点的输入端连接，所述卫星解码电路焊点的输出端与所述控制电路焊点的第一输入端连接；所述射频切换开关电路焊点的输出端与所述地面解调电路焊点的输入端连接，所述地面解调电路焊点的输出端与所述地面解码电路焊点的输入端连接，所述地面解码电路焊点的输出端与所述控制电路焊点的第二输入端连接。
可选地，所述卫星高频头信号脚焊点与所述无线电视高频头信号脚焊点为同一个焊点；所述地面电视高频头信号脚焊点与所述有线电视高频头信号脚焊点为同一个焊点。
可选地，所述板体内部设有射频信号线，所述射频信号线的阻抗为75欧姆，所述射频信号线的线宽在4至30密耳之间，所述射频信号线的包地间隔在5至26密耳之间。
可选地，所述射频信号线的悬空线小于3密耳。
本申请还提出一种电视信号接收系统，包括卫星高频头、地面电视高频头、卫星解调电路、卫星解码电路、地面解调电路、地面解码电路、控制电路及如上所述的电路板，所述电路板包括板体，所述板体的一侧设有卫星高频头信号脚焊点、地面电视高频头信号脚焊点、无线电视高频头信号脚焊点、有线电视高频头信号脚焊点、射频切换开关电路焊点、卫星解调电路焊点、卫星解码电路焊点、地面解调电路焊点、地面解码电路焊点及控制电路焊点；
所述卫星解调电路焊点的输出端与所述卫星解码电路焊点的输入端连接，所述卫星解码电路焊点的输出端与所述控制电路焊点的第一输入端连接；所述射频切换开关电路焊点的输出端与所述地面解调电路焊点的输入端连接，所述地面解调电路焊点的输出端与所述地面解码电路焊点的输入端连接，所述地面解码电路焊点的输出端与所述控制电路焊点的第二输入端连接；
所述卫星高频头的信号脚与所述卫星高频头信号脚焊点焊接，所述地面电视高频头的信号脚与所述地面电视高频头信号脚焊点焊接，所述卫星解调电路与所述卫星解调电路焊点焊接，所述卫星解码电路与所述卫星解码电路焊点焊接，所述地面解调电路与所述地面解调电路焊点焊接，所述地面解码电路与所述地面解码电路焊点焊接，所述控制电路与所述控制电路焊点焊接；所述卫星高频头的信号脚通过第一跳线与所述卫星解调电路的输入端连接，所述地面电视高频头的信号脚通过第二跳线与所述地面解调电路的输入端连接。
可选地，所述卫星高频头信号脚焊点与所述无线电视高频头信号脚焊点为同一个焊点；所述地面电视高频头信号脚焊点与所述有线电视高频头信号脚焊点为同一个焊点。
所述板体内部设有射频信号线，所述射频信号线的阻抗为75欧姆，所述射频信号线的线宽在4至30密耳之间，所述射频信号线的包地间隔在5至26密耳之间。
可选地，所述射频信号线的悬空线小于3密耳。
可选地，所述电视信号接收系统还包括第一屏蔽罩，所述第一屏蔽罩套设在所述卫星高频头、所述地面电视高频头、所述卫星解调电路及所述地面解调电路上，以屏蔽所述卫星高频头、所述地面电视高频头、所述卫星解调电路及所述地面解调电路之间的相互干扰。
本申请还提出一种电视信号接收系统，包括无线电视高频头、有线电视高频头、射频切换开关电路、地面解调电路、地面解码电路、控制电路及如上所述的电路板；所述电路板包括板体，所述板体的一侧设有卫星高频头信号脚焊点、地面电视高频头信号脚焊点、无线电视高频头信号脚焊点、有线电视高频头信号脚焊点、射频切换开关电路焊点、卫星解调电路焊点、卫星解码电路焊点、地面解调电路焊点、地面解码电路焊点及控制电路焊点；
所述卫星解调电路焊点的输出端与所述卫星解码电路焊点的输入端连接，所述卫星解码电路焊点的输出端与所述控制电路焊点的第一输入端连接；所述射频切换开关电路焊点的输出端与所述地面解调电路焊点的输入端连接，所述地面解调电路焊点的输出端与所述地面解码电路焊点的输入端连接，所述地面解码电路焊点的输出端与所述控制电路焊点的第二输入端连接；
所述无线电视高频头的信号脚与所述无线电视高频头信号脚焊点焊接，所述有线电视高频头的信号脚与所述有线电视高频头信号脚焊点焊接，所述射频切换开关电路与所述射频切换开关电路焊点焊接，所述地面解调电路与所述地面解调电路焊点焊接，所述地面解码电路与所述地面解码电路焊点焊接，所述控制电路与所述控制电路焊点焊接；所述无线电视高频头的信号脚通过第三跳线与所述射频切换开关电路的第一输入端连接，所述有线电视高频头的信号脚通过第四跳线与所述射频切换开关电路的第二输入端连接。
可选地，所述卫星高频头信号脚焊点与所述无线电视高频头信号脚焊点为同一个焊点；所述地面电视高频头信号脚焊点与所述有线电视高频头信号脚焊点为同一个焊点。
可选地，所述板体内部设有射频信号线，所述射频信号线的阻抗为75欧姆，所述射频信号线的线宽在4至30密耳之间，所述射频信号线的包地间隔在5至26密耳之间。
可选地，所述射频信号线的悬空线小于3密耳。
可选地，所述电视信号接收系统还包括第二屏蔽罩，所述屏蔽罩套设在所述无线电视高频头、所述有线电视高频头、所述射频切换开关电路、所述卫星解调电路及所述地面解调电路上，以屏蔽所述无线电视高频头、所述有线电视高频头、所述射频切换开关电路、所述卫星解调电路及所述地面解调电路之间的相互干扰。
本申请还提出一种电视信号接收系统，包括地面电视高频头、地面解调电路、地面解码电路、控制电路及如上所述的电路板；所述电路板包括板体，所述板体的一侧设有卫星高频头信号脚焊点、地面电视高频头信号脚焊点、无线电视高频头信号脚焊点、有线电视高频头信号脚焊点、射频切换开关电路焊点、卫星解调电路焊点、卫星解码电路焊点、地面解调电路焊点、地面解码电路焊点及控制电路焊点；
所述卫星解调电路焊点的输出端与所述卫星解码电路焊点的输入端连接，所述卫星解码电路焊点的输出端与所述控制电路焊点的第一输入端连接；所述射频切换开关电路焊点的输出端与所述地面解调电路焊点的输入端连接，所述地面解调电路焊点的输出端与所述地面解码电路焊点的输入端连接，所述地面解码电路焊点的输出端与所述控制电路焊点的第二输入端连接；
所述地面电视高频头的信号脚与所述地面电视高频头信号脚焊点焊接，所述地面解调电路与所述地面解调电路焊点焊接，所述地面解码电路与所述地面解码电路焊点焊接，所述控制电路与所述控制电路焊点焊接；所述地面电视高频头的信号脚通过第五跳线与所述地面解调电路的输入端连接。
可选地，所述卫星高频头信号脚焊点与所述无线电视高频头信号脚焊点为同一个焊点；所述地面电视高频头信号脚焊点与所述有线电视高频头信号脚焊点为同一个焊点。
可选地，所述板体内部设有射频信号线，所述射频信号线的阻抗为75欧姆，所述射频信号线的线宽在4至30密耳之间，所述射频信号线的包地间隔在5至26密耳之间。
本申请还提出一种电视机，包括如上所述的电路板，所述电路板包括板体，所述板体的一侧设有卫星高频头信号脚焊点、地面电视高频头信号脚焊点、无线电视高频头信号脚焊点、有线电视高频头信号脚焊点、射频切换开关电路焊点、卫星解调电路焊点、卫星解码电路焊点、地面解调电路焊点、地面解码电路焊点及控制电路焊点；
所述卫星解调电路焊点的输出端与所述卫星解码电路焊点的输入端连接，所述卫星解码电路焊点的输出端与所述控制电路焊点的第一输入端连接；所述射频切换开关电路焊点的输出端与所述地面解调电路焊点的输入端连接，所述地面解调电路焊点的输出端与所述地面解码电路焊点的输入端连接，所述地面解码电路焊点的输出端与所述控制电路焊点的第二输入端连接。
可选地，所述卫星高频头信号脚焊点与所述无线电视高频头信号脚焊点为同一个焊点；所述地面电视高频头信号脚焊点与所述有线电视高频头信号脚焊点为同一个焊点。
可选地，所述板体内部设有射频信号线，所述射频信号线的阻抗为75欧姆，所述射频信号线的线宽在4至30密耳之间，所述射频信号线的包地间隔在5至26密耳之间。
本申请技术方案通过在电路板板体上设置卫星高频头信号脚焊点、地面电视高频头信号脚焊点、无线电视高频头信号脚焊点、有线电视高频头信号脚焊点、射频切换开关电路焊点、卫星解调电路焊点、卫星解码电路焊点、地面解调电路焊点、地面解码电路焊点及控制电路焊点。使得将对应的卫星高频头、地面电视高频头、地面解调电路、地面解码电路、卫星解调电路、卫星解码电路及控制电路焊接在电路板上就可以制成满足欧洲机型需求的电视信号接收系统；将对应的无线电视高频头、有线电视高频头、射频切换开关电路、地面解调电路、地面解码电路及控制电路装在电路板上就可以制成满足拉美国家机型需求的电视信号接收系统；将对应的地面电视高频头、地面解调电路、底面解码电路和控制电路装在电路板上就可以制成满足北美国家机型需求的电视信号接收系统。也就是说，本电路板能够同时适应欧洲国家电视机机型、拉美国家电视机机型和北美国家电视机机型，兼容性强。
附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图示出的结构获得其他的附图。
图1为本申请电路板一实施例的结构示意图；
图2为本申请电视信号接收系统第一实施例的结构示意图；
图3为本申请电视信号接收系统第二实施例的结构示意图；
图4为本申请电视信号接收系统第三实施例的结构示意图；
图5为本申请电视信号接收系统第四实施例的电路结构示意图。
附图标号说明：
标号 名称 标号 名称
10 卫星高频头信号脚焊点 11 卫星高频头
20 无线电视高频头信号脚焊点 21 无线电视高频头
30 有线电视高频头信号脚焊点 31 有线电视高频头
40 地面电视高频头信号脚焊点 41 地面电视高频头
50 卫星解调电路焊点 51 卫星解调电路
60 卫星解码电路焊点 61 卫星解码电路
70 射频切换开关电路焊点 71 射频切换开关电路
80 地面解调电路焊点 81 地面解调电路
90 地面解码电路焊点 91 地面解码电路
100 控制电路焊点 101 控制电路
本申请目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请的一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
需要说明，在本申请中涉及“第一”、“第二”等的描述仅用于描述目的，而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。另外，各个实施例之间的技术方案可以相互结合，但是必须是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在，也不在本申请要求的保护范围之内。
本申请提出一种电路板。
请参阅图1，在一实施例中，上述电路板包括板体（图未标出），板体的一侧设有卫星高频头信号脚焊点10、地面电视高频头信号脚焊点40、无线电视高频头信号脚焊点20、有线电视高频头信号脚焊点30、射频切换开关电路焊点70、卫星解调电路焊点50、卫星解码电路焊点60、地面解调电路焊点80、地面解码电路焊点90及控制电路焊点100。
卫星解调电路焊点50的输出端与卫星解码电路焊点60的输入端连接，卫星解码电路焊点60的输出端与控制电路焊点100的第一输入端连接；射频切换开关电路焊点70的输出端与地面解调电路焊点80的输入端连接，地面解调电路焊点80的输出端与地面解码电路焊点90的输入端连接，地面解码电路焊点90的输出端与控制电路焊点100的第二输入端连接。
具体地，在与各焊点对应位置焊上卫星高频头11、地面电视高频头41、卫星解调电路51、卫星解码电路61、地面解调电路81、地面解码电路91及控制电路101，就可以装配出适应欧洲国家电视机机型的电视信号接收系统。
在与各焊点对应位置焊上无线电视高频头21、有线电视高频头31、射频切换开关电路71、地面解调电路81、地面解码电路91及控制电路101，就可以装配出适应拉美国家电视机机型的电视信号接收系统。
在与各焊点对应位置焊上地面电视高频头41、地面解调电路81、地面解码电路91及控制电路101，就可以装配出适应北美国家电视机机型的电视信号接收系统。
也就是说，本电路板能够同时适应欧洲国家电视机机型、拉美国家电视机机型和北美国家电视机机型，兼容性强。
为了减小电路板的体积，降低电路板的成本。在一可选实施例中，上述卫星高频头信号脚焊点10与无线电视高频头信号脚焊点20为同一个焊点；上述地面电视高频头信号脚焊点40与上述有线电视高频头信号脚焊点30为同一个焊点。
根据上述内容，可以理解的是，不论是欧洲国家电视机，还是拉美国家的电视机，甚至是北美国家的电视机，其所需的高频接收头数量最多只有两个。因此，将卫星高频头信号脚焊点10与无线电视高频头信号脚焊点20设为同一个焊点，将地面电视高频头信号脚焊点40与有线电视高频头信号脚焊点30设为同一个焊点，不会影响对应电视机的工作。
值得一提的是，为了减小电路板的面积，降低电路板的成本，以及简化电路板的制造工艺，本实施例中，还对电路板的多项参数进行了设置。
具体地，板体内部设有射频信号线（图未标出），射频信号线的阻抗为75欧姆，射频信号线的线宽在4至30密耳之间，射频信号线的包地间隔在5至26密耳之间。
此外，为了降低射频信号的噪声，本实施例中，还将射频信号线设置在3密耳以下。
对应的，本申请还提出一种适用于欧洲国家电视机机型的电视信号接收系统。
请参阅图2，上述电视信号接收系统包括卫星高频头11、地面电视高频头41、卫星解调电路51、卫星解码电路61、地面解调电路81、地面解码电路91、控制电路101及如上所述的电路板。
卫星高频头11的信号脚与卫星高频头信号脚焊点10焊接，地面电视高频头41的信号脚与地面电视高频头信号脚焊点40焊接，卫星解调电路51与卫星解调电路焊点50焊接，卫星解码电路61与卫星解码电路焊点60焊接，地面解调电路81与地面解调电路焊点80焊接，地面解码电路91与地面解码电路焊点90焊接，控制电路101与控制电路焊点100焊接。
需要说明的是，为了使射频信号线的悬空线在3密耳以下，避免射频信号受到干扰失真。本实施例中，卫星高频头11的信号脚通过第一跳线与卫星解调电路51的输入端连接，地面电视高频头41的信号脚通过第二跳线与地面解调电路81的输入端连接。
为了避免卫星高频头11、地面电视高频头41、卫星解调电路51及地面解调电路81之间相互产生干扰，本实施例中，电视信号接收系统还包括第一屏蔽罩，第一屏蔽罩套设在卫星高频头11、地面电视高频头41、卫星解调电路51及地面解调电路81上，以将卫星高频头11、地面电视高频头41、卫星解调电路51及地面解调电路81分成独立空间，实现屏蔽隔离。
对应的，本申请还提出一种适用于拉美国家电视机机型的电视信号接收系统。
请参阅图3，上述电视信号接收系统包括包括无线电视高频头21、有线电视高频头31、射频切换开关电路71、地面解调电路81、地面解码电路91、控制电路101及如上所述的电路板。
无线电视高频头21的信号脚与无线电视高频头信号脚焊点20焊接，有线电视高频头31的信号脚与有线电视高频头信号脚焊点30焊接，射频切换开关电路71与射频切换开关电路焊点70焊接，地面解调电路81与地面解调电路焊点80焊接，地面解码电路91与地面解码电路焊点90焊接，控制电路101与控制电路焊点100焊接。
需要说明的是，为了使射频信号线的悬空线在3密耳以下，避免射频信号受到干扰失真。本实施例中，无线电视高频头21的信号脚通过第三跳线与射频切换开关电路71的第一输入端连接，有线电视高频头31的信号脚通过第四跳线与射频切换开关电路71的第二输入端连接。
为了避免有线电视高频头31、无线电视高频头21、射频切换开关电路71、卫星解调电路51及地面解调电路81之间产生相互干扰，本实施例中，电视信号接收系统还包括第二屏蔽罩，第二屏蔽罩套设在有线电视高频头31、无线电视高频头21、射频切换开关电路71、卫星解调电路51及地面解调电路81上，以将无线电视高频头21、有线电视高频头31、射频切换开关电路71、卫星解调电路51及地面解调电路81分成独立空间，实现屏蔽隔离。
对应的，本申请还提出一种适用于北美国家电视机机型的电视信号接收系统。
请参阅4，上述电视信号接收系统包括地面电视高频头41、地面解调电路81、地面解码电路91、控制电路101及如上所述的电路板。
地面电视高频头41的信号脚与地面电视高频头信号脚焊点40焊接，地面解调电路81与地面解调电路焊点80焊接，地面解码电路91与地面解码电路焊点90焊接，控制电路101与控制电路焊点100焊接。
需要说明的是，为了使射频信号线的悬空线在3密耳以下，避免射频信号受到干扰失真。本实施例中，地面电视高频头41的信号脚通过第五跳线与地面解调电路81的输入端连接。
值得一提的是，上述内容中，射频切换开关电路71可包括射频切换开关芯片U1、第一二极管D1、第二二极管D2、第一电感L1、第二电容C2、第三电容C3、第四电容C4、第一电阻R1及第二电阻R2，其中，射频切换开关芯片U1包括第一输入脚RF1、第二输入脚RF2、电源脚VCC、输出脚RFC、第一插入检测脚T1及第二插入检测脚T2。
卫星解调电路51包括卫星解调芯片U2，卫星解调芯片U2的输入脚（图未标出）为卫星解调电路51的输入端，卫星解调芯片U2的输出脚（图未标出）为卫星解调电路51的输出端。卫星解码电路61包括卫星解码芯片U3，卫星解码芯片U3的输入脚（图未标出）为卫星解码电路61的输入端，卫星解码芯片U3的输出脚（图未标出）为卫星解码电路61的输出端。
地面解调电路81包括地面解调芯片U4，地面解调芯片U4的输入脚（图未标出）为地面解调电路81的输入端，地面解调芯片U4的输出脚（图未标出）为地面解调电路81的输出端。地面解码电路91包括地面解码芯片U5，地面解码芯片U5的输入脚（图未标出）为地面解码电路91的输入端，地面解码芯片U5的输出脚（图未标出）为地面解码电路91的输出端。
电视信号接收系统还包括第一电容C1、第五电容C5、第六电容C6、第七电容C7、第三电阻R3、第二电感L2、第三电感L3、第四电感L4、第三二极管D3及第四二极管D4。
具体地，卫星高频头11的信号脚、无线电视高频头21的信号脚、第一电容C1的第一端、第一电感L1的第一端、第一二极管D1的阴极、第二二极管D2的阳极及第二电容C2的第一端互连，第一电容C1的第二端与卫星解码芯片U2的输入脚连接，卫星解码芯片U2的输出脚与卫星解调芯片U3的输入脚连接，第一电感L1的第二端、第一二极管D1的阳极及第二二极管D2的阴极均接地。
第二电容C2的第二端与射频切换开关芯片U1的第二输入脚RF2连接，射频切换开关芯片U1的第二插入检测脚T2、第一电阻R1的第二端及第三电容C3的第一端互连，第一电阻R1的第一端设置为输入插入检测信号SW；射频切换开关芯片U1的第一输入脚RF1、射频切换开关芯片U1的电源脚、第二电阻R2的第二端及第四电容C4的第一端互连，第二电阻R2的第一端设置为输入芯片电源VCC；射频切换开关芯片U1的输出脚RFC、地面解码芯片U4的输入脚、第三电阻R3的第二端及第三电感L3的第二端互连，地面解码芯片U4的输出脚与地面解码芯片U4的输入脚连接；射频开关芯片的接地脚GND、第三电容C3的第二端及第四电容C4的第二端均接地；第三电阻R3的第一端与第五电容C5的第二端连接，第五电容C5的第一端、有线电视高频头31的信号脚、地面电视高频头41的信号脚、第四电感L4的第一端、第三二极管D3的阴极及第四二极管D4的阳极互连，第四电感L4的第二端、第三二极管D3的阳极及第四二极管D4的阴极均接地；第六电容C6的第二端、第二电感L2的第一端、第三电感L3的第一端及射频切换开关芯片U1的第一输入脚RF1互连，第二电感L2的第二端与第七电容C7的第一端连接，第七电容C7的第二端接地。
本申请还提出一种电视机，该电视机包括如上所述的电路板，该电路板的具体结构参照上述实施例，由于本电视机采用了上述所有实施例的全部技术方案，因此至少具有上述实施例的技术方案所带来的所有技术效果，在此不再一一赘述。
以上所述仅为本申请的优选实施例，并非因此限制本申请的专利范围，凡是在本申请的发明构思下，利用本申请说明书及附图内容所作的等效结构变换，或直接/间接运用在其他相关的技术领域均包括在本申请的专利保护范围内。

Claims (20)

  1. 一种电路板，其中，包括板体，所述板体的一侧设有卫星高频头信号脚焊点、地面电视高频头信号脚焊点、无线电视高频头信号脚焊点、有线电视高频头信号脚焊点、射频切换开关电路焊点、卫星解调电路焊点、卫星解码电路焊点、地面解调电路焊点、地面解码电路焊点及控制电路焊点；
    所述卫星解调电路焊点的输出端与所述卫星解码电路焊点的输入端连接，所述卫星解码电路焊点的输出端与所述控制电路焊点的第一输入端连接；所述射频切换开关电路焊点的输出端与所述地面解调电路焊点的输入端连接，所述地面解调电路焊点的输出端与所述地面解码电路焊点的输入端连接，所述地面解码电路焊点的输出端与所述控制电路焊点的第二输入端连接。
  2. 如权利要求1所述的电路板，其中，所述卫星高频头信号脚焊点与所述无线电视高频头信号脚焊点为同一个焊点；所述地面电视高频头信号脚焊点与所述有线电视高频头信号脚焊点为同一个焊点。
  3. 如权利要求1所述的电路板，其中，所述板体内部设有射频信号线，所述射频信号线的阻抗为75欧姆，所述射频信号线的线宽在4至30密耳之间，所述射频信号线的包地间隔在5至26密耳之间。
  4. 如权利要求3所述的电路板，其中，所述射频信号线的悬空线小于3密耳。
  5. 一种电视信号接收系统，其中，包括卫星高频头、地面电视高频头、卫星解调电路、卫星解码电路、地面解调电路、地面解码电路、控制电路及电路板，所述电路板包括板体，所述板体的一侧设有卫星高频头信号脚焊点、地面电视高频头信号脚焊点、无线电视高频头信号脚焊点、有线电视高频头信号脚焊点、射频切换开关电路焊点、卫星解调电路焊点、卫星解码电路焊点、地面解调电路焊点、地面解码电路焊点及控制电路焊点；
    所述卫星解调电路焊点的输出端与所述卫星解码电路焊点的输入端连接，所述卫星解码电路焊点的输出端与所述控制电路焊点的第一输入端连接；所述射频切换开关电路焊点的输出端与所述地面解调电路焊点的输入端连接，所述地面解调电路焊点的输出端与所述地面解码电路焊点的输入端连接，所述地面解码电路焊点的输出端与所述控制电路焊点的第二输入端连接；
    所述卫星高频头的信号脚与所述卫星高频头信号脚焊点焊接，所述地面电视高频头的信号脚与所述地面电视高频头信号脚焊点焊接，所述卫星解调电路与所述卫星解调电路焊点焊接，所述卫星解码电路与所述卫星解码电路焊点焊接，所述地面解调电路与所述地面解调电路焊点焊接，所述地面解码电路与所述地面解码电路焊点焊接，所述控制电路与所述控制电路焊点焊接；
    所述卫星高频头的信号脚通过第一跳线与所述卫星解调电路的输入端连接，所述地面电视高频头的信号脚通过第二跳线与所述地面解调电路的输入端连接。
  6. 如权利要求5所述的电视信号接收系统，其中，所述卫星高频头信号脚焊点与所述无线电视高频头信号脚焊点为同一个焊点；所述地面电视高频头信号脚焊点与所述有线电视高频头信号脚焊点为同一个焊点。
  7. 如权利要求5所述的电视信号接收系统，其中，所述板体内部设有射频信号线，所述射频信号线的阻抗为75欧姆，所述射频信号线的线宽在4至30密耳之间，所述射频信号线的包地间隔在5至26密耳之间。
  8. 如权利要求7所述的电视信号接收系统，其中，所述射频信号线的悬空线小于3密耳。
  9. 如权利要求5所述的电视信号接收系统，其中，所述电视信号接收系统还包括第一屏蔽罩，所述第一屏蔽罩套设在所述卫星高频头、所述地面电视高频头、所述卫星解调电路及所述地面解调电路上，以屏蔽所述卫星高频头、所述地面电视高频头、所述卫星解调电路及所述地面解调电路之间的相互干扰。
  10. 一种电视信号接收系统，其中，包括无线电视高频头、有线电视高频头、射频切换开关电路、地面解调电路、地面解码电路、控制电路及电路板，所述电路板包括板体，所述板体的一侧设有卫星高频头信号脚焊点、地面电视高频头信号脚焊点、无线电视高频头信号脚焊点、有线电视高频头信号脚焊点、射频切换开关电路焊点、卫星解调电路焊点、卫星解码电路焊点、地面解调电路焊点、地面解码电路焊点及控制电路焊点；
    所述卫星解调电路焊点的输出端与所述卫星解码电路焊点的输入端连接，所述卫星解码电路焊点的输出端与所述控制电路焊点的第一输入端连接；所述射频切换开关电路焊点的输出端与所述地面解调电路焊点的输入端连接，所述地面解调电路焊点的输出端与所述地面解码电路焊点的输入端连接，所述地面解码电路焊点的输出端与所述控制电路焊点的第二输入端连接；
    所述无线电视高频头的信号脚与所述无线电视高频头信号脚焊点焊接，所述有线电视高频头的信号脚与所述有线电视高频头信号脚焊点焊接，所述射频切换开关电路与所述射频切换开关电路焊点焊接，所述地面解调电路与所述地面解调电路焊点焊接，所述地面解码电路与所述地面解码电路焊点焊接，所述控制电路与所述控制电路焊点焊接；
    所述无线电视高频头的信号脚通过第三跳线与所述射频切换开关电路的第一输入端连接，所述有线电视高频头的信号脚通过第四跳线与所述射频切换开关电路的第二输入端连接。
  11. 如权利要求10所述的电视信号接收系统，其中，所述卫星高频头信号脚焊点与所述无线电视高频头信号脚焊点为同一个焊点；所述地面电视高频头信号脚焊点与所述有线电视高频头信号脚焊点为同一个焊点。
  12. 如权利要求10所述的电视信号接收系统，其中，所述板体内部设有射频信号线，所述射频信号线的阻抗为75欧姆，所述射频信号线的线宽在4至30密耳之间，所述射频信号线的包地间隔在5至26密耳之间。
  13. 如权利要求12所述的电视信号接收系统，其中，所述射频信号线的悬空线小于3密耳。
  14. 如权利要求10所述的电视信号接收系统，其中，所述电视信号接收系统还包括第二屏蔽罩，所述屏蔽罩套设在所述无线电视高频头、所述有线电视高频头、所述射频切换开关电路、所述卫星解调电路及所述地面解调电路上，以屏蔽所述无线电视高频头、所述有线电视高频头、所述射频切换开关电路、所述卫星解调电路及所述地面解调电路之间的相互干扰。
  15. 一种电视信号接收系统，其中，包括地面电视高频头、地面解调电路、地面解码电路、控制电路及电路板，所述电路板包括板体，所述板体的一侧设有卫星高频头信号脚焊点、地面电视高频头信号脚焊点、无线电视高频头信号脚焊点、有线电视高频头信号脚焊点、射频切换开关电路焊点、卫星解调电路焊点、卫星解码电路焊点、地面解调电路焊点、地面解码电路焊点及控制电路焊点；
    所述卫星解调电路焊点的输出端与所述卫星解码电路焊点的输入端连接，所述卫星解码电路焊点的输出端与所述控制电路焊点的第一输入端连接；所述射频切换开关电路焊点的输出端与所述地面解调电路焊点的输入端连接，所述地面解调电路焊点的输出端与所述地面解码电路焊点的输入端连接，所述地面解码电路焊点的输出端与所述控制电路焊点的第二输入端连接；
    所述地面电视高频头的信号脚与所述地面电视高频头信号脚焊点焊接，所述地面解调电路与所述地面解调电路焊点焊接，所述地面解码电路与所述地面解码电路焊点焊接，所述控制电路与所述控制电路焊点焊接；
    所述地面电视高频头的信号脚通过第五跳线与所述地面解调电路的输入端连接。
  16. 如权利要求15所述的电视信号接收系统，其中，所述卫星高频头信号脚焊点与所述无线电视高频头信号脚焊点为同一个焊点；所述地面电视高频头信号脚焊点与所述有线电视高频头信号脚焊点为同一个焊点。
  17. 如权利要求15所述的电视信号接收系统，其中，所述板体内部设有射频信号线，所述射频信号线的阻抗为75欧姆，所述射频信号线的线宽在4至30密耳之间，所述射频信号线的包地间隔在5至26密耳之间。
  18. 一种电视机，其中，包括电路板，所述电路板包括板体，所述板体的一侧设有卫星高频头信号脚焊点、地面电视高频头信号脚焊点、无线电视高频头信号脚焊点、有线电视高频头信号脚焊点、射频切换开关电路焊点、卫星解调电路焊点、卫星解码电路焊点、地面解调电路焊点、地面解码电路焊点及控制电路焊点；
    所述卫星解调电路焊点的输出端与所述卫星解码电路焊点的输入端连接，所述卫星解码电路焊点的输出端与所述控制电路焊点的第一输入端连接；所述射频切换开关电路焊点的输出端与所述地面解调电路焊点的输入端连接，所述地面解调电路焊点的输出端与所述地面解码电路焊点的输入端连接，所述地面解码电路焊点的输出端与所述控制电路焊点的第二输入端连接。
  19. 如权利要求18所述的电视机，其中，所述卫星高频头信号脚焊点与所述无线电视高频头信号脚焊点为同一个焊点；所述地面电视高频头信号脚焊点与所述有线电视高频头信号脚焊点为同一个焊点。
  20. 如权利要求18所述的电视机，其中，所述板体内部设有射频信号线，所述射频信号线的阻抗为75欧姆，所述射频信号线的线宽在4至30密耳之间，所述射频信号线的包地间隔在5至26密耳之间。
PCT/CN2018/095747 2017-09-11 2018-07-16 电路板、电视信号接收系统及电视机 Ceased WO2019047617A1 (zh)

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