DIY Electronic Kit FM Radio Receiver Module 76-108MHz DIY Radio Speaker Kit Frequency Modification LCDDisplay Soldering Practice

6.Note:
1>.It cannot receive radio while it is charging.
2>.It is a wireless module. So do not use it in an environment with signal interference.
3>.Input charging voltage form micro USB on the bigger PCB.

7.Installation Tips:
1>.User needs to prepare the welding tool at first.
2>.Please be patient until the installation is complete.
3>.The package is DIY kit. It need finish install by user.
4>.The soldering iron can’t touch the components for a long time(1.0 second), otherwise it will damage the components.
5>.Pay attention to the positive and negative of the components.
6>.Strictly prohibit short circuit.
7>.User must install the LED according to the specified rules. Otherwise some LED will not light.
8>.Install complex components preferentially.
9>.Make sure all components are in right direction and right place.
10>.It is strongly recommended to read the installation manual before starting installation!!!
11>.Please wear anti-static gloves or anti-static wristbands when installing electronic components.

8.Installation Steps (Please be patient install!!!):
1>.Step 1: Install 1pc 39Kohm Metal Film Resistor at R1.
2>.Step 2: Install 2pcs 10Kohm Metal Film Resistor at R2,R3.
3>.Step 3: Install 1pc SOP-16 IC LM4863 at U1.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 Socket.
4>.Step 4: Install 1pc micro USB socket at J2.
5>.Step 5: Prepare 6pcs pin header.
6>.Step 6: Install 1pc Charging Module at J7 and fix by 6pcs pin header.
7>.Step 7: Remove black fixed block from 6pcs pin header and fix Charging Module.
8>.Step 8: Install 1pc 0.1uF Monolithic Capacitor at C2.
9>.Step 9: Install 1pc 1uF 50V Electrolytic Capacitor at C1.Pay attention to distinguish between positive and negative.The Longer pin is positive pole.
10>.Step 10: Install 1pc 3.5mm Audio Socket at J5.
11>.Step 11: Cut a pin from 16Pin Female Socket.
12>.Step 12: Install Female Socket at FM.Pay attention to the direction of the cut pin.
13>.Step 13: Install 1pc Self-locking Button at S6.
14>.Step 14: Install 5pcs 6*6*20mm Black Button at S1-S5.
15>.Step 15: Install 1pc Self-locking Button Cap on Self-locking Button.
16>.Step 16: Install 1pc Antenna at ANT.Note that the antenna should be installed on the front of the PCB.
17>.Step 17: Install 1pc 18650 Battery Box at J1,J3.Pay attention to the positive and negative.Red wire is positive pole.
18>.Step 18: Install 2pcs 15cm black Cable on speaker.
19>.Step 19: Connect speaker to PCB at SP. The speaker does not distinguish between positive and negative.
20>.Step 20: Install 1pc FM Audio Receiver on Female pins.Pay attention to the direction of the cut pin.
21>.Step 21: Tear off the protective film on the surface of the acrylic shell.
22>.Step 22: Install 4pcs M3*15mm Copper Pillar and 4pcs M3*10mm Screw on Acrylic bottom plate.
23>.Step 23: Fixed speaker on acrylic bottom plate by 4pcs M3*6mm Screw.
24>.Step 24: Install 3pcs M3*6mm Screw and 3pcs M3 Nut on Acrylic bottom plate.Note that the wire should not be placed between the PCB and the acrylic.
25>.Step 25: Fixed main PCB on acrylic bottom plate by 3pcs M3 Nut.Note that the wire should not be placed between the PCB and the acrylic.
26>.Step 26: Adjust the position of the battery box. Do not place the wires under the battery box. The wires can be moved to both ends of the battery box.
27>.Step 27: Fix other acrylic plate by 6pcs M3*6mm Screw and 6pcs M3 Nut.
28>.Step 28: Connect to power supply and enjoy the effect.