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Part 1: Introduction
It is an 87.0MHz-108.0MHz Wireless FM Radio Receiver DIY Kit. It has a built-in 4-Bit Red Digital Tube display screen which can clearly display the receiving frequency.
Part 2: Feature
1.Automatically search for radio stations
2.Built-in volume adjustment
3.Automatic memory function after power off
4.Support 87Hz-108MHz receiver frequency
5.Built-in 5W power amplifier
6.Power saving mode with backlight off for 5 seconds
Part 3: Parameter
1.Product Name:FM Radio Receiver DIY Kit
2.Work Voltage:DC 4.5V~5.5V
3.Output impedance:8ohm
4.Output power:5W
5.Output channel:Mono
6.Receiver Frequency:87.0MHz~108.0MHz
7.Frequency accuracy:0.1MHz
8.Equivalent noise: >=30dB
9.Work Temperature:-40℃~85℃
10.Work Humidity:5%~95%RH
11.Size(Installed):83*69*53mm
Part 4: Using Methods
1.Press left button to decrease receiving frequency.
2.Press right button to decrease receiving frequency.
3.Rotate potentiometer to adjust the volume.
Part 5: Component List
Part 6: Schematic Diagram
Part 7: Notice
1.The frequency can be adjusted continuously by keep press button.
2. It is a wireless module. So do not use it in an environment with signal interference.
3.The display can only show for 5 seconds and then enter to power saving mode.
Part 8: Installation Steps (Please be patient)
Step 1: Install 1pcs 4.7ohm Metal Film Resistor at R7.
Step 2: Install 1pcs 220Kohm Metal Film Resistor at R3.
Step 3: Install 11pcs 10Kohm Metal Film Resistor at R1,R2,R4,R5,R8~R14.
Step 4: Install 1pcs TEA5767 Audio Receiver at TEA5767.Pay attention to the installation direction.
Step 5: Install 1pcs 13.56MHz Crystal Oscillator at Y1.
Step 6: Install 2pcs 22pF Ceramic Capacitor at C1,C2.
Step 7: Install 1pcs DIP-8 IC Socket at LM386.There is a mark on one end of the IC Socket and there is a mark on PCB where the IC Socket can place on.These two marks are corresponding to each other and are used to specify the installation direction of the IC Socket.
Step 8: Install 1pcs DIP-40 IC Socket at U1.There is a mark on one end of the IC Socket and there is a mark on PCB where the IC Socket can place on.These two marks are corresponding to each other and are used to specify the installation direction of the IC Socket.
Step 9: Install 1pcs 50Kohm Potentiometer at R6.
Step 10: Install 3pcs 0.1uF Monolithic Capacitor at C4,C5,C6.
Step 11: Install 4pcs TO-92 S9012 Transistor at Q1~Q4.
Step 12: Install 2pcs 10uF 25V Electrolytic Capacitor at C7,C8.Pay attention to distinguish between positive and negative.The Longer pin is positive pole.
Step 13: Install 1pcs Blue 2*5*7 LED at D13.Pay attention to distinguish between positive and negative.The Longer pin is positive pole.
Step 14: Install 1pcs Red 0.56" 4Bit Common Anode Digital Screen at 056SMG_4.Pay attention to the installation direction.
Step 15: Install 1pcs DC-005 Power Socket at 5V.
Step 16: Install 3pcs 100uF 50V Electrolytic Capacitor at C3,C9,C11. Pay attention to distinguish between positive and negative.The Longer pin is positive pole.
Step 17: Install 1pcs Self-locking Button at S4.
Step 18: Install 2pcs 6*6*20mm Black Button at S1,S2.
Step 19: Install 1pcs DIP-8 IC LM386.There is a mark on one end of the IC and there is a mark on PCB where the IC can place on.These two marks are corresponding to each other and are used to specify the installation direction of the IC.
Step 20: Install 1pcs DIP-40 IC STC89C52.There is a mark on one end of the IC and there is a mark on PCB where the IC can place on.These two marks are corresponding to each other and are used to specify the installation direction of the IC.
Step 21: Install 1pcs Antenna at ANT.Note that the antenna should be installed on the back of the PCB.
Step 22: Connect speaker to PCB at SP by 10cm red/black Cable. The speaker does not distinguish between positive and negative.
Step 23: Tear off the protective film on the surface of the acrylic shell.
Step 24: Fixed speaker on acrylic bottom plate by 4pcs M3*8mm Screw and 4pcs M3 Nut.
Step 25: Install 4pcs M3*8mm Screw and 4pcs M3 Nut on PCB.
Step 26: Install 4pcs M3*10mm Copper Pillar on PCB.
Step 27: Install 4pcs M3*8mm Screw and 4pcs M3 Nut on acrylic front plate.
Step 28: Install PCB module on acrylic front plate.
Step 29: Fix other acrylic plate by 12pcs M3*8mm Screw and 12pcs M3 Nut.
Step 30: Connect to power supply and enjoy the effect.
Quantity | 5+ | 10+ | 30+ |
Price | $14.70 | $14.50 | $13.85 |
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