1.Introduction:

This DIY product needs to be soldered and assembled by yourself. It is a flash Christmas tree kit consists of three circuit board, allows 36 LED flash alternately, showing a Christmas tree in the space of three-dimensional profile (the night environment has better viewing).

2.Parameter:

• Work Voltage:DC 4.5V-5.5V
• Work Current:60mA
• Power Type:MINI USB
• Control Type:Button Control
• Color:RGB LED
• Work Temperature:-40℃~85℃
• Work Humidity:0%~95%RH
• Size(Installed):130x70x59mm

3.Function:

• RGB LED light color changes automatically
• Switch control
• MINI USB provide power supply
• Simple circuit

4.Application:

• Training soldering skills
• School engineer students circuit learning & electronics diy project ideas
• Electronic competition
• Gift giving
• Hands-on crafts collection
• Home/holiday decoration
• Father & son time at home

5.Installation Notes

• User needs to prepare the soldering tool at first.
• The soldering iron can't touch the components for a long time(1.0 second), otherwise it will damage the components.
• Pay attention to the positive and negative of the components.
• Users can complete installation by PCB silk screen and component listing.
• User must install the LED according to the specified rules.Otherwise some LED will not light.
• Install complex components preferentially.
• Make sure all components are in right direction and right place.
• It is strongly recommended to read the installation manual before starting installation.

6.Installation Steps (Please be patient while starting the installation:)

• Step 1: Install PCB-A. Install 4pcs 100ohm Metal Film Resistor on R2,R4,R6,R7.
• Step 2: Install 3pcs 4.7K Metal Film Resistor on R1,R3,R5.
• Step 3: Install 18pcs 3mm RGB LED at D1-D18.Pay attention to distinguish the positive and negative poles of LED and the Longer pin are positive pole. Control distance between PCB edge and LED head.
• Step 4: Install 3pcs 47uF 16V Electrolytic Capacitor at C1,C2,C3.Pay attention to distinguish the positive and negative poles and the Longer pin are positive pole.A 2~3mm spacing is reserved between the capacitor and the PCB to facilitate bending of the capacitor for subsequent installation.
• Step 5: Install 3pcs TO-92 S9014 Transistor at Q1,Q2,Q3.It is better to bend S9014's pin so that 2pcs PCB-A and PCB-B can better splicing.OK, PCB-A has been installed completed.
• Step 6: Install PCB-B. Install 3pcs 100ohm Metal Film Resistor on R2,R4,R6.
• Step 7: Install 3pcs 4.7K Metal Film Resistor on R1,R3,R5.
• Step 8: Install 18pcs 3mm RGB LED at D1-D18.Pay attention to distinguish the positive and negative poles of LED and the Longer pin are positive pole. Control distance between PCB edge and LED head.
• Step 9: Install 3pcs 47uF 16V Electrolytic Capacitor at C1,C2,C3.Pay attention to distinguish the positive and negative poles and the Longer pin are positive pole.A 2~3mm spacing is reserved between the capacitor and the PCB to facilitate bending of the capacitor for subsequent installation.
• Step 10: Install 3pcs TO-92 S9014 Transistor at Q1,Q2,Q3. It is better to bend S9014's pin so that 2pcs PCB-A and PCB-B can better splicing.OK, PCB-B has been installed completed.
• Step 11: Test.Connect 4.5V-5V to PCB-A and PCB-B separately.Preliminary welding success if LED are blinking automatically.
• Step 12: Align the two positioning heads on PCB-A and PCB-B and then fixed with tin.
• Step 13: Install Mini USB Socket at P1.
• Step 14: Install 1pcs power switch at S.
• Step 15: Fixed PCB-A and PCB-B on PCB-C.Align the two positioning heads and then fixed with tin.
• Step 16: Install the top LED.Note the positive and negative of LED.At this point, the installation is complete!!
• Step 17: Mounting Copper column and nut as bracket.
• Step 18: Turn on the power and enjoy the effect.