BSD-50 Dual-Color Flashing Light DIY Kit is a flash kit consists of circuit board and allows 50pcs LED flash alternately. It can simulate the traffic signal indicator which is very helpful for beginners to understand the circuit principle.
9>.Flashing Mode:Left 4times => Right 4times => All 4times
12>.Main PCB Size(Installed):66*45*13mm
13>.LED PCB Size(Installed):61*29*11mm
1>.Training welding skills
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>.Check that all of the LED can be illuminated.
11>.It is strongly recommended to read the installation manual before starting installation!!!
12>.Please wear anti-static gloves or anti-static wristbands when installing electronic components.
6.Installation Steps(Please be patient):
Step 1: Install 2pcs 22ohm Metal Film Resistor at R8,R9.
Step 2: Install 7pcs 1Kohm Metal Film Resistor at R1-R7.
Step 3: Install 6pcs DO-41 1N4007 Diode at D1-D6.The white mark is negative pole.
Step 4: Install 1pcs 0.1uF 104 Ceramic Capacitor at C3.
Step 5: Install 2pcs DIP-16 CD4017 at U2,U3.There is a dot 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 6: Install 3pcs XH2.54-2P Male Socket at CN1-CN3.
Step 7: Install 1pcs DIP-8 NE555 at U1.There is a dot 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 8: Install 5pcs TO-92 S8050 Transistor at Q1-Q5.
Step 9: Install 1pcs 100uF Electrolytic Capacitor at C1.Pay attention to distinguish between positive and negative.The Longer pin is positive pole.The longer pin is inserted into the rectangular pad.
Step 10: Install 1pcs 10uF Electrolytic Capacitor at C2.Pay attention to distinguish between positive and negative.The Longer pin is positive pole.The longer pin is inserted into the rectangular pad.
Step 11: Install 1pcs 5.8*5.8mm Self-locking Switch at SW1.There is a concave on switch and there is a white mark on PCB where the switch can place on.These two marks are corresponding to each other and are used to specify the installation direction of the switch.
Step 12: Install 1pcs 100Kohm Potentiometer at VR1.
Step 13: The longer pin is inserted into the rectangular pad(positive pole). The shorter pins are inserted into the oval pads.
Step 14: Install 25pcs Green LED on one light PCB and 25pcs Yellow LED on another light PCB .
Step 15: Install wire to 3pcs PCB.Red wire connects to positive pole and Black wire connects to negative pole.
Step 16: Connect to power supply and enjoy the effect.
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