CN216980116U - Circuit system of multifunctional disc player - Google Patents
Circuit system of multifunctional disc player Download PDFInfo
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- CN216980116U CN216980116U CN202123256810.8U CN202123256810U CN216980116U CN 216980116 U CN216980116 U CN 216980116U CN 202123256810 U CN202123256810 U CN 202123256810U CN 216980116 U CN216980116 U CN 216980116U
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Abstract
The utility model provides a multifunctional circuit system of a record player, which has the technical scheme that: the intelligent control system comprises a power circuit and a main control circuit, wherein the main control circuit is electrically connected with a plurality of functional modules, the audio signal output ends of the functional modules are electrically connected with an audio summarizing circuit, the audio summarizing circuit is electrically connected with an output module, the main control circuit is also electrically connected with a man-machine interaction module and a display module, and the audio summarizing circuit is also electrically connected with the main control circuit; the utility model can enhance the practicability of the CD player and solve the problem of single function of the CD player.
Description
[ technical field ] A
The present invention relates to the field of disc recorders, and more particularly to a multifunctional disc player circuit system.
[ background ] A method for producing a semiconductor device
A record player, also known as gramophone, is a sound reproducing device, the sound of which is stored in an arc-shaped groove carved on the record plane by an acoustic method, and when playing music, the record is placed on a turntable and rotates under a stylus. Original CD player function singleness can only be used for broadcasting the vinyl record, and the majority is put as the ornament, and the practicality is relatively poor, hardly brings the better music experience of giving people.
The utility model provides a multifunctional record player circuit system, which perfectly integrates the modern audio technology and the classical art modeling, integrates functionality and decoration, enhances the practicability of a record player and solves the problem of single function of the record player.
[ Utility model ] content
The utility model provides a multifunctional record player circuit system, which perfectly integrates the modern audio technology and the classical art modeling, integrates the functionality and the decoration, enhances the practicability of a record player and solves the problem of single function of the record player.
The utility model is realized by the following technical scheme:
a multi-functional phonograph circuitry, comprising: including being used for the power supply circuit who supplies power for the system and being used for the master control circuit of control system operation, the master control circuit electricity is connected with a plurality of input audio signal's functional module, and functional module's audio signal output part electricity is connected with the audio frequency that is used for switching the audio signal passageway, handles audio signal and improves audio quality and gathers the circuit, the audio frequency gathers the circuit electricity and is connected with the output module who is used for output, broadcast audio signal, master control circuit still electricity is connected with the man-machine interaction module who is used for manual operation to adjust the record player function and is used for showing record player operating condition's display module, the audio frequency gather the circuit still with the master control circuit electricity is connected.
The multifunctional record player circuit system as described above, characterized in that: the plurality of functional modules are respectively a CD functional module, a turntable functional module, a tape functional module, a radio functional module and a Bluetooth receiving module.
The multifunctional record player circuit system as described above, characterized in that: the audio summary circuit is also electrically connected with a wired device access circuit for externally connecting wired devices and inputting audio signals.
The multifunctional record player circuit system as described above, characterized in that: the output module comprises a loudspeaker driving circuit used for amplifying audio signal power and driving a loudspeaker of the CD player and an earphone connecting circuit used for plugging an earphone, and the loudspeaker driving circuit is also electrically connected with the main control circuit.
The multifunctional record player circuit system as described above, characterized in that: the output module also comprises an audio signal output circuit used for outputting the audio signal to external playing equipment or recording equipment.
The multifunctional record player circuit system as described above, characterized in that: the man-machine interaction module comprises a volume adjusting circuit used for adjusting the volume of a loudspeaker of the record player, a function switching knob circuit used for manually switching the work of the function module of the record player and a key control circuit used for manually operating and controlling the working state of the record player.
The multifunctional record player circuit system as described above, characterized in that: the record circuit system is also provided with a standby circuit, and the standby circuit is electrically connected with the main control circuit and the audio summarizing circuit.
The multifunctional record player circuit system as described above, characterized in that: the turntable signal input port CON209, the signal amplifier IC301-A and the signal amplifier IC301-B, the pin of the turntable signal input port CON209 is electrically connected with one end of a resistor R302 and a capacitor C302, the other end of the resistor R302 and the capacitor C302 is electrically connected with one end of a capacitor C115, the other end of the capacitor C115 is electrically connected with one end of a resistor R304 and a resistor R306, and a pin of a triode Q27, the other end of the resistor R306 is grounded, the other end of the resistor R304 is electrically connected with the pin of a triode Q27, the pin of a triode Q27 is also electrically connected with one end of the capacitor C306, the other end of the capacitor C306 is electrically connected with one end of the capacitor C117 and the resistor R332, and the pin of the triode Q27, the other end of the resistor R332 is grounded, the other end of the capacitor C117 is electrically connected with the pin of the signal amplifier IC301-B after being connected with the resistor R308 in series, pin (c) of the signal amplifier IC301-B is also electrically connected with one end of the resistor R310;
a pin of the turntable signal input port CON209 is electrically connected with one end of a resistor R301 and one end of a capacitor C301, the other ends of the resistor R301 and the capacitor C301 are electrically connected with one end of a capacitor C28, the other end of a capacitor C28 is electrically connected with one end of a resistor R303, one end of a resistor R305 and a pin of a triode Q28, the other end of the resistor R305 is grounded, the other end of the resistor R303 is electrically connected with a pin (i) of a triode Q28 and the other end of the resistor R304, a pin (i) of a triode Q28 is electrically connected with a pin (i) of a triode Q27, a pin (i) of a triode Q28 is also electrically connected with one end of the capacitor C305, the other end of the capacitor C305 is electrically connected with one end of a capacitor C120, a resistor R307 and a pin (iii) of a triode Q28, the other end of the resistor R307 is grounded, the other end of the capacitor C120 is electrically connected with a pin (331) in series and then is electrically connected with a pin (iii) of the signal amplifier IC 301-A), the pin (c) of the signal amplifier IC301-A is also electrically connected with one end of a resistor R309;
the other end of the resistor R309 is electrically connected to the other end of the resistor R310, one end of the resistor R311, one end of the resistor R312, one end of the resistor R333, one end of the resistor R334, and the positive electrode of the polarity capacitor C316, the other end of the resistor R312 and the negative electrode of the polarity capacitor C316 are grounded, the other end of the resistor R334 is electrically connected to one end of the pins C301-B, the resistor R318 and one end of the resistor R316, the other end of the resistor R316 is electrically connected to one end of the capacitor C320, the other ends of the resistor R318 and the capacitor C320 are electrically connected to the pins C301-B of the signal amplifier IC301-B, the other end of the resistor R311 is electrically connected to the pins C301-B of the signal amplifier IC301-a, the other end of the resistor R333 is electrically connected to one end of the pins C333, one end of the resistor R317 and one end of the resistor R315 are electrically connected to one end of the capacitor C319, the other ends of the resistor R317 and the capacitor C319 are electrically connected with a pin (R) of the signal amplifier IC301-A, and the pin (R) of the signal amplifier IC301-A is grounded;
a pin (i) of a triode Q11 is electrically connected with the power circuit, a pin (ii) of a triode Q11 is electrically connected with one ends of a resistor R50 and a resistor R54, the other end of a resistor R50 is electrically connected with the power circuit, the other end of a resistor R54 is electrically connected with a pin (i) of a triode Q12, a pin (ii) of a triode Q12 is electrically connected with the main control circuit after being connected with a resistor R144 in series, a pin (iii) of a triode Q12 is grounded, a pin (iii) of a triode Q11 is electrically connected with one end of a resistor R319, an anode of a polar capacitor C313, an anode of a diode D1 and a pin (iv) of a turntable signal input port CON209, a cathode of the polar capacitor C313 is grounded, the other end of the resistor R319 is electrically connected with one end of a resistor R131 and an anode of the polar capacitor C317, an anode of the polar capacitor C317 is also electrically connected with a pin (iii) of the signal amplifier IC301-B, a cathode of the polar capacitor C317 is grounded, and the other end of the resistor R131 is electrically connected with an anode of the polarity capacitor C323, A pin I of a triode Q27 and a pin I of a triode Q28 are electrically connected, a negative electrode of a polar capacitor C323 is grounded, a negative electrode of a diode D1 is electrically connected with one end of a resistor R19, the other end of a resistor R19 is electrically connected with a pin I of a triode Q29, one end of a resistor R326 and one end of a resistor R327, a pin II of the triode Q29 is electrically connected with a pin III of a turntable signal input port CON209 after being connected with the resistor R33 in series, the pin III of the triode Q29 is grounded, and a pin III and a pin IV of the turntable signal input port CON209 are grounded;
the other end of the resistor R326 is electrically connected with a pin II of a triode Q26, the other end of the resistor R327 is electrically connected with a pin II of a triode Q25, a pin III of a triode Q26 and a pin III of a triode Q25 are grounded, a pin III of the signal amplifier IC301-B is electrically connected with the positive electrode of the polar capacitor C310, the negative electrode of the polar capacitor C310 is electrically connected with one end of the resistor R324 and a pin I of the triode Q26 after being connected in series with the resistor R322, the other end of the resistor R324 is grounded, a pin I of the triode Q26 is electrically connected with the capacitor C41 and the resistor R49 after being connected in series with the resistor R49, a pin I of the signal amplifier IC301-A is electrically connected with the positive electrode of the polar capacitor C309, the negative electrode of the polar capacitor C309 is electrically connected with the resistor R323 after being connected with one end of the resistor R325 and a pin I of the triode Q25, the other end of the resistor R325 is grounded, a pin I of the triode Q25 is electrically connected in series with the capacitor C13, The resistor R48 is electrically connected with the audio summing circuit.
The multifunctional record player circuit system as described above, characterized in that: and a pin ER _ MUTE of the earphone connecting circuit and a pin BT _ MUTE of the Bluetooth receiving module are electrically connected with the loudspeaker driving circuit.
Compared with the prior art, the utility model has the following advantages:
1. the multifunctional record player circuit system is provided with the CD function module, the record player function module, the tape function module, the radio function module and the Bluetooth receiving module, can realize multiple functions, greatly enhances the practicability of the record player and solves the problem of single function of the record player.
2. The multifunctional record player circuit system is provided with the audio summarizing circuit, and can switch the audio channels of all the functional modules, so that the record player can flexibly switch different functions, prevent the interference among different functional modules, optimize audio signals by the audio summarizing circuit, improve the tone quality and bring better music experience to people.
3. The multifunctional phonograph circuit system of the utility model is provided with the wired device access circuit, can be connected with various music devices by wires, receives and plays the audio signals input by the external music devices, enlarges the audio sources of the phonograph, and enhances the practicability of the phonograph.
4. The multifunctional phonograph circuit system is provided with an audio signal output circuit which can be connected with external playing equipment and recording equipment, and after a phonograph converts music in a CD, a vinyl record or a magnetic tape into an audio signal, the audio signal is transmitted to the external equipment through the audio signal output circuit for storage or playing, so that the use function of the phonograph is expanded, and the practicability of the phonograph is enhanced.
[ description of the drawings ]
FIG. 1 is a block diagram of the construction of the phonograph circuitry;
FIG. 2 is a circuit schematic of a power supply circuit;
FIG. 3 is a circuit schematic of the main control circuit and the CD function module;
FIG. 4 is a circuit schematic of an audio summary circuit;
FIG. 5 is a circuit schematic of a turntable function module;
FIG. 6 is a circuit schematic of a tape function module;
FIG. 7 is a circuit schematic of a radio functional module;
FIG. 8 is a circuit schematic of a Bluetooth receiver module;
FIG. 9 is a circuit schematic of a wired device access circuit;
FIG. 10 is a circuit schematic of the horn driver circuit;
FIG. 11 is a circuit schematic of the headset connection circuit;
fig. 12 is a circuit schematic diagram of an audio signal output circuit;
FIG. 13 is a circuit schematic of a display module;
FIG. 14 is a circuit schematic of a human-computer interaction module;
FIG. 15 is a circuit schematic of a standby circuit;
in the figure: 1 is a power supply circuit; 2 is a main control circuit; 3 is an audio summary circuit; 4 is a CD function module; 5 is a disc function module; 6 is a tape function module; 7 is a radio function module; 8 is a Bluetooth receiving module; 9 is a wired device access circuit; 10 is a horn driving circuit; 11 is an earphone connecting circuit; 12 is an audio signal output circuit; 13 is a display module; 14 is a volume adjusting circuit; 15 is a function switching knob circuit; 16 is a key control circuit; reference numeral 17 denotes a standby circuit.
[ detailed description ] embodiments
The technical features of the present invention will be described in further detail with reference to the accompanying drawings so that those skilled in the art can understand the technical features.
A multifunctional record player circuit system is disclosed, as shown in fig. 1-15, comprising a power supply circuit 1 for supplying power to the system and a main control circuit 2 for controlling the operation of the system, wherein the main control circuit 2 is electrically connected with a plurality of functional modules for inputting audio signals, an audio signal output end of each functional module is electrically connected with an audio summarizing circuit 3 for switching audio signal channels, processing audio signals and improving audio quality, the audio summarizing circuit 3 is electrically connected with an output module for outputting and playing audio signals, the main control circuit 2 is also electrically connected with a human-computer interaction module for manually operating and adjusting the function of the record player and a display module 13 for displaying the working state of the record player, and the audio summarizing circuit 3 is also electrically connected with the main control circuit 2.
Specifically, as shown in fig. 3 to 8, the plurality of function modules are a CD function module 4, a turntable function module 5, a tape function module 6, a radio function module 7, and a bluetooth receiving module 8, respectively.
In addition, as shown in fig. 9, the audio summarizing circuit 3 is further electrically connected to a wired device access circuit 9 for externally connecting wired devices and inputting audio signals, so that various music devices can be wired to receive and play audio signals input by external music devices, the audio sources of the disc player are expanded, and the practicability of the disc player is enhanced.
Specifically, as shown in fig. 10 to 11, the output module includes a speaker driving circuit 10 for amplifying audio signal power and driving a speaker of the audio disc player, and an earphone connecting circuit 11 for plugging an earphone, and the speaker driving circuit 10 is further electrically connected to the main control circuit 2.
In addition, as shown in fig. 12, the output module further includes an audio signal output circuit 12 for outputting an audio signal to an external playing device or a recording device, and can be connected to the external playing device and the recording device, and after the audio player converts music in a CD, a vinyl record, or a tape into an audio signal, the audio signal is transmitted to the external device through the audio signal output circuit 12 for storage or playing, so that the use function of the record player is expanded, and the practicability of the record player is enhanced.
Specifically, as shown in fig. 14, the man-machine interaction module includes a volume adjusting circuit 14 for adjusting the volume of the loudspeaker of the disc player, a function switching knob circuit 15 for manually switching the operation of the functional module of the disc player, and a key control circuit 16 for manually controlling the operating state of the disc player.
Specifically, as shown in fig. 15, the record player circuit system is further provided with a standby circuit 17, and the standby circuit 17 is electrically connected to the main control circuit 2 and the audio summary circuit 3; the standby circuit 17 can detect whether there is an audio signal in the audio summary circuit 3, and in the power-on state, if there is no operation on the disc player for a period of time and there is no audio signal in the audio summary circuit 3, the main control circuit 2 controls the standby circuit 17 to operate, and the disc player enters the standby state, thereby reducing the power consumption.
Specifically, as shown in fig. 5, the turntable function module 5 includes a turntable signal input port CON209, a signal amplifier IC301-a and a signal amplifier IC301-B, a pin (R) of the turntable signal input port CON209 is electrically connected to one end of a resistor R302 and one end of a capacitor C302, the other ends of the resistor R302 and the capacitor C302 are electrically connected to one end of a capacitor C115, the other end of the capacitor C115 is electrically connected to one end of a resistor R304, one end of the resistor R306 and a pin (R) of a transistor Q27, the other end of the resistor R306 is grounded, the other end of the resistor R304 is electrically connected to a pin (R) of a transistor Q27, a pin (R) of a transistor Q27 is also electrically connected to one end of the capacitor C306, the other end of the capacitor C306 is electrically connected to one end of the capacitor C117, the resistor R332 and a pin (Q27), the other end of the resistor R332 is grounded, the other end of the capacitor C117 is electrically connected to a pin (R) in series with a resistor R308 and then electrically connected to a pin (C301-B) of the signal amplifier IC301-B, pin (c) of the signal amplifier IC301-B is also electrically connected with one end of the resistor R310;
a pin of the turntable signal input port CON209 is electrically connected with one end of a resistor R301 and one end of a capacitor C301, the other ends of the resistor R301 and the capacitor C301 are electrically connected with one end of a capacitor C28, the other end of a capacitor C28 is electrically connected with one end of a resistor R303, one end of a resistor R305 and a pin of a triode Q28, the other end of the resistor R305 is grounded, the other end of the resistor R303 is electrically connected with a pin (i) of a triode Q28 and the other end of the resistor R304, a pin (i) of a triode Q28 is electrically connected with a pin (i) of a triode Q27, a pin (i) of a triode Q28 is also electrically connected with one end of the capacitor C305, the other end of the capacitor C305 is electrically connected with one end of a capacitor C120, a resistor R307 and a pin (iii) of a triode Q28, the other end of the resistor R307 is grounded, the other end of the capacitor C120 is electrically connected with a pin (331) in series and then is electrically connected with a pin (iii) of the signal amplifier IC 301-A), a pin (c) of the signal amplifier IC301-A is also electrically connected with one end of the resistor R309;
the other end of the resistor R309 is electrically connected to the other end of the resistor R310, one end of the resistor R311, one end of the resistor R312, one end of the resistor R333, one end of the resistor R334, and the positive electrode of the polarity capacitor C316, the other end of the resistor R312 and the negative electrode of the polarity capacitor C316 are grounded, the other end of the resistor R334 is electrically connected to one end of the pins C301-B, the resistor R318 and one end of the resistor R316, the other end of the resistor R316 is electrically connected to one end of the capacitor C320, the other ends of the resistor R318 and the capacitor C320 are electrically connected to the pins C301-B of the signal amplifier IC301-B, the other end of the resistor R311 is electrically connected to the pins C301-B of the signal amplifier IC301-a, the other end of the resistor R333 is electrically connected to one end of the pins C333, one end of the resistor R317 and one end of the resistor R315 are electrically connected to one end of the capacitor C319, the other ends of the resistor R317 and the capacitor C319 are electrically connected with a pin (R) of the signal amplifier IC301-A, and the pin (R) of the signal amplifier IC301-A is grounded;
a pin (R) of a triode Q11 is electrically connected with the power circuit 1, a pin (R) of a triode Q11 is electrically connected with one ends of a resistor R50 and a resistor R54, the other end of a resistor R50 is electrically connected with the power circuit 1, the other end of a resistor R54 is electrically connected with a pin (R) of a triode Q12, a pin (R) of a triode Q12 is electrically connected with the main control circuit 2 after being connected with a resistor R144 in series, a pin (R) of a triode Q12 is grounded, a pin (R) of a triode Q11 is electrically connected with one end of a resistor R319, an anode of a polar capacitor C313, an anode of a diode D1 and a pin (C) of a turntable signal input port CON209, a cathode of the polar capacitor C313 is grounded, the other end of the resistor R319 is electrically connected with one end of a resistor R131 and an anode of a polar capacitor C317, an anode of the polar capacitor C317 is also electrically connected with a pin (R) of the signal amplifier IC301-B, and a cathode of the polar capacitor C317 is grounded, the other end of the resistor R131 is electrically connected with the anode of the polar capacitor C323, a pin I of a triode Q27 and a pin I of a triode Q28, the cathode of the polar capacitor C323 is grounded, the cathode of the diode D1 is electrically connected with one end of a resistor R19, the other end of the resistor R19 is electrically connected with a pin I of a triode Q29, one end of a resistor R326 and one end of a resistor R327, a pin II of the triode Q29 is electrically connected with a pin II of the turntable signal input port CON209 after being connected with the resistor R33 in series, a pin III of the triode Q29 is grounded, and a pin III of the turntable signal input port CON209 are grounded;
the other end of the resistor R326 is electrically connected with a pin II of a triode Q26, the other end of the resistor R327 is electrically connected with a pin II of a triode Q25, a pin III of a triode Q26 and a pin III of a triode Q25 are grounded, a pin III of the signal amplifier IC301-B is electrically connected with the positive electrode of the polar capacitor C310, the negative electrode of the polar capacitor C310 is electrically connected with one end of the resistor R324 and a pin I of the triode Q26 after being connected in series with the resistor R322, the other end of the resistor R324 is grounded, a pin I of the triode Q26 is electrically connected with the capacitor C41 and the resistor R49 after being connected in series with the resistor R49, a pin I of the signal amplifier IC301-A is electrically connected with the positive electrode of the polar capacitor C309, the negative electrode of the polar capacitor C309 is electrically connected with one end of the resistor R325 and a pin I of the triode Q25 after being connected in series with the resistor R323, the other end of the resistor R325 is grounded, and a pin I of the triode Q25 is electrically connected with a pin C13, The resistor R48 is then electrically connected to the audio summing circuit 3.
Specifically, the speaker driving circuit 10 is further electrically connected to the main control circuit 2, and both the pin ER _ MUTE of the earphone connection circuit 11 and the pin BT _ MUTE of the bluetooth receiving module 8 are electrically connected to the speaker driving circuit 10; when connecting bluetooth, the bluetooth receiving module 8 sends a mute signal to the loudspeaker driving circuit 10, so that the loudspeaker of the player pauses playing music, thereby facilitating subsequent operations of a user and preventing signal collision; when the earphone is inserted, the switch SW2 on the earphone can send a switch signal to the loudspeaker driving circuit 10, so as to control the loudspeaker of the CD player to work or pause, which is convenient for the user to operate.
The embodiment of the present invention is described only for the preferred embodiment of the present invention, and not for the limitation of the concept and scope of the present invention, and the technical solution of the present invention is subject to various modifications and improvements by those skilled in the art without departing from the design concept of the present invention.
Claims (9)
1. A multi-function disc player circuitry, comprising: including being used for power supply circuit (1) for the system power supply and being used for main control circuit (2) of control system operation, main control circuit (2) electricity is connected with a plurality of input audio signal's functional module, and functional module's audio signal output part electricity is connected with audio frequency summary circuit (3) that are used for switching the audio signal passageway, handling audio signal and improve audio quality, audio frequency summary circuit (3) electricity is connected with the output module who is used for exporting, playing audio signal, main control circuit (2) still electricity is connected with the man-machine interaction module who is used for manual operation to adjust the record machine function and is used for display machine operating condition's display module (13), audio frequency summary circuit (3) still with main control circuit (2) electricity is connected.
2. The multifunctional record player circuitry according to claim 1, wherein: the plurality of functional modules are respectively a CD functional module (4), a turntable functional module (5), a tape functional module (6), a radio functional module (7) and a Bluetooth receiving module (8).
3. The multifunctional record player circuitry according to claim 2, wherein: the audio summary circuit (3) is also electrically connected with a wired device access circuit (9) for externally connecting wired devices and inputting audio signals.
4. The multifunctional record player circuitry according to claim 3, wherein: the output module comprises a loudspeaker driving circuit (10) for amplifying audio signal power and driving a loudspeaker of a CD player and an earphone connecting circuit (11) for plugging an earphone, wherein the loudspeaker driving circuit (10) is also electrically connected with the main control circuit (2).
5. The multifunctional record player circuitry according to claim 4, wherein: the output module also comprises an audio signal output circuit (12) for outputting the audio signal to an external playing device or a recording device.
6. The multifunctional record player circuitry according to claim 5, wherein: the man-machine interaction module comprises a volume adjusting circuit (14) for adjusting the volume of a loudspeaker of the record player, a function switching knob circuit (15) for manually switching the work of the function module of the record player, and a key control circuit (16) for manually operating and controlling the working state of the record player.
7. The multifunctional record player circuitry according to claim 1, wherein: the record circuit system is also provided with a standby circuit (17), and the standby circuit (17) is electrically connected with the main control circuit (2) and the audio summary circuit (3).
8. The multifunctional record player circuitry according to claim 2, wherein: the turntable signal input port CON209, the signal amplifier IC301-A and the signal amplifier IC301-B are included in the turntable function module (5), the pin of the turntable signal input port CON209 is electrically connected with one end of a resistor R302 and a capacitor C302, the other end of the resistor R302 and the capacitor C302 is electrically connected with one end of a capacitor C115, the other end of the capacitor C115 is electrically connected with one end of a resistor R304, one end of a resistor R306 and a pin of a triode Q27, the other end of the resistor R306 is grounded, the other end of the resistor R304 is electrically connected with the pin of a triode Q27, the pin of a triode Q27 is also electrically connected with one end of the capacitor C306, the other end of the capacitor C306 is electrically connected with one end of the capacitor C117, the resistor R332 and the pin of the triode Q27, the other end of the resistor R332 is grounded, the other end of the capacitor C117 is electrically connected with the pin of the signal amplifier IC301-B after being connected with the resistor R308 in series, pin (c) of the signal amplifier IC301-B is also electrically connected with one end of the resistor R310;
a pin of the turntable signal input port CON209 is electrically connected with one end of a resistor R301 and one end of a capacitor C301, the other ends of the resistor R301 and the capacitor C301 are electrically connected with one end of a capacitor C28, the other end of a capacitor C28 is electrically connected with one end of a resistor R303, one end of a resistor R305 and a pin of a triode Q28, the other end of the resistor R305 is grounded, the other end of the resistor R303 is electrically connected with a pin I of a triode Q28 and the other end of the resistor R304, a pin I of a triode Q28 is electrically connected with a pin I of a triode Q27, a pin II of a triode Q28 is also electrically connected with one end of a capacitor C305, the other end of the capacitor C305 is electrically connected with one end of a capacitor C120, a resistor R307 and a pin III of a triode Q28, the other end of the resistor R307 is grounded, the other end of the capacitor C120 is electrically connected with a pin R331 and then electrically connected with a pin III of the signal amplifier IC301-A after the other end of the capacitor C120 is connected in series, the pin (c) of the signal amplifier IC301-A is also electrically connected with one end of a resistor R309;
the other end of the resistor R309 is electrically connected to the other end of the resistor R310, one end of the resistor R311, one end of the resistor R312, one end of the resistor R333, one end of the resistor R334, and the positive electrode of the polarity capacitor C316, the other end of the resistor R312 and the negative electrode of the polarity capacitor C316 are grounded, the other end of the resistor R334 is electrically connected to one end of the pins C301-B, the resistor R318 and one end of the resistor R316, the other end of the resistor R316 is electrically connected to one end of the capacitor C320, the other ends of the resistor R318 and the capacitor C320 are electrically connected to the pins C301-B of the signal amplifier IC301-B, the other end of the resistor R311 is electrically connected to the pins C301-B of the signal amplifier IC301-a, the other end of the resistor R333 is electrically connected to one end of the pins C333, one end of the resistor R317 and one end of the resistor R315 are electrically connected to one end of the capacitor C319, the other ends of the resistor R317 and the capacitor C319 are electrically connected with a pin (R) of the signal amplifier IC301-A, and the pin (R) of the signal amplifier IC301-A is grounded;
a pin phi of a triode Q11 is electrically connected with the power supply circuit (1), a pin phi of a triode Q11 is electrically connected with one ends of a resistor R50 and a resistor R54, the other end of the resistor R50 is electrically connected with the power supply circuit (1), the other end of a resistor R54 is electrically connected with a pin phi of a triode Q12, a pin phi of a triode Q12 is electrically connected with the main control circuit (2) after being connected with a resistor R144 in series, a pin phi of a triode Q12 is grounded, a pin phi of a triode Q11 is electrically connected with one end of a resistor R319, an anode of a polar capacitor C313, an anode of a diode D1 and a pin phi of a turntable signal input port CON209, a cathode of the polar capacitor C313 is grounded, the other end of the resistor R319 is electrically connected with one end of a resistor R131 and an anode of a polar capacitor C317, and an anode of the polar capacitor C317 is also electrically connected with a pin 301-B of the signal amplifier IC and a cathode of the polar capacitor C317 is grounded, the other end of the resistor R131 is electrically connected with the anode of the polar capacitor C323, a pin I of a triode Q27 and a pin I of a triode Q28, the cathode of the polar capacitor C323 is grounded, the cathode of the diode D1 is electrically connected with one end of a resistor R19, the other end of the resistor R19 is electrically connected with a pin I of a triode Q29, one end of a resistor R326 and one end of a resistor R327, a pin II of the triode Q29 is electrically connected with a pin II of the turntable signal input port CON209 after being connected with the resistor R33 in series, a pin III of the triode Q29 is grounded, and a pin III of the turntable signal input port CON209 are grounded;
the other end of the resistor R326 is electrically connected with a pin II of a triode Q26, the other end of the resistor R327 is electrically connected with a pin II of a triode Q25, a pin III of a triode Q26 and a pin III of a triode Q25 are grounded, a pin III of the signal amplifier IC301-B is electrically connected with a positive electrode of a polar capacitor C310, a negative electrode of the polar capacitor C310 is electrically connected with one end of a resistor R324 and a pin III of a triode Q26 after being connected in series, the other end of the resistor R324 is grounded, a pin III of the triode Q26 is electrically connected with a capacitor C41 and a resistor R49 after being connected in series, the audio summary circuit (3), a pin I of the signal amplifier IC301-A is electrically connected with a positive electrode of the polar capacitor C309, a negative electrode of the polar capacitor C309 is electrically connected with a resistor R323 after being connected in series with one end of a resistor R325 and a pin III of the triode Q25, the other end of the resistor R325 is grounded, a pin III of the triode Q25 is electrically connected with a pin III of a capacitor C13, The resistor R48 is electrically connected with the audio summing circuit (3).
9. The multifunctional record player circuitry according to claim 5, wherein: and a pin ER _ MUTE of the earphone connecting circuit (11) and a pin BT _ MUTE of the Bluetooth receiving module (8) are electrically connected with the loudspeaker driving circuit (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123256810.8U CN216980116U (en) | 2021-12-21 | 2021-12-21 | Circuit system of multifunctional disc player |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123256810.8U CN216980116U (en) | 2021-12-21 | 2021-12-21 | Circuit system of multifunctional disc player |
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| Publication Number | Publication Date |
|---|---|
| CN216980116U true CN216980116U (en) | 2022-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123256810.8U Active CN216980116U (en) | 2021-12-21 | 2021-12-21 | Circuit system of multifunctional disc player |
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| Country | Link |
|---|---|
| CN (1) | CN216980116U (en) |
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