Parameters:

Precautions:

1. Check part values & quantities against part list.
2. Always meter resistors values before soldering.
3. Understand all part polarities and orientations.

Installation steps:

1.Install MIAN RES: R31=1 M ohms; Other resistors are 3.3K ohms

2.Install CAP: C2=222P

3.Install E- CAP: C1=22uF, Notice that the positive electrode of the electrolytic capacitor cannot be reversed.

4.Install Directional switch. Bend the switch 90 degrees, and then install it to SW1.

5.Install ADJ-RES: VR1=104K. Note that the adjustable resistance should be soldered to the back of the circuit board.

6.Install power switch: Pay attention to the installation direction installation direction of the switch.

7.Install IC: Pay attention to the installation direction of the IC. U1=CD4069. U2=U3=CD4015.

8.Install 8pin Connector: Refer to the picture below, install the connector to CN5, CN6, CN7, CN8.

9.Install LED panel: Install 30 LED on the circuit board. The long foot is the positive pole. Install on the rectangle pad.

10.Install pin connector: Install the short side of the connector to the back of the circuit board.

11.Install main and LED: Install the motherboard and LED gently press together A point to A, B point to B.

12.Soldering power cable: Redline is positive power supply DC5V suitable for USB. 3 section AA or AAA battery box.

Warm Tips: Light- emitting diode and electrolytic capacitor the longer pin is it the anode it should be installed on the rectangle pad of PCB. Refer to the picture below:

Component list: