Electronic Alarm Clock Kits User Guide www.elecfreaks.
Electronic Alarm Clock Kits 1、Introduction Electronic Alarm Clock Kits is a set of tool for producing an electronic alarm clock. With our guidance, you can make an electronic clock completely by yourself.It is very easy, simple and funny.
Electronic Alarm Clock Kits 2、Tools&Materials Needed To make an electronic clock, we have to prepare something first. Then we will need: n Adjustable Thermostat Soldering Iron You can choose 20W internal heated or 25W external heated soldering iron. The head of soldering iron shall be cutting head.
Electronic Alarm Clock Kits 3、Components Assembly&Installation Once we gathered all these materials and tools, we can move on to our next step-- Assembly&Installation. How to put these materials together to form a clock? This might seems headache . Well, we can start assemble from the inside to the outside of the clock.
Electronic Alarm Clock Kits Ø Step Two：Solder Thermistor Find thermistor showed in the picture below: Thermistor Thermistor was marked NTC on PCB board. Solder thermistor onto the green circle area showed in the following picture. Note:Thermistor has no positive or negative point. Ø Step Three：Solder Ceramic Capacitor Ceramic Capacitor Product datasheet Technical support: Support@elecfreaks.
Electronic Alarm Clock Kits Solder ceramic capacitor onto C1 and C2. Note: 1. Ceramic capacitor has no positive or negative point. 2. This component contains ceramic capacitor 12pf. Ø Step Four：Solder Monolithic Capacitor Monolithic Capacitor Monolithic capacitor solder on C3 and C4.(See Picture below.) Product datasheet Technical support: Support@elecfreaks.
Electronic Alarm Clock Kits Note: 1. Monolithic capacitor has no positive or negative point. 2. This component contains monolithic capacitor 0.1uf. Ø Step Five：Solder Crystal Oscillator Crystal Oscillator Solder crystal oscillator to Y1 marked on PCB board. Product datasheet Technical support: Support@elecfreaks.
Electronic Alarm Clock Kits Ø Step Six：Solder Triode Triode Electronic clock adopt 8050 Triode marked Q1-Q5 on PCB board. Note: Triode must solder in the same direction with PCB board. Ø Step Seven：Solder IC Socket and Plug IC IC Solder IC socket before plug IC. Product datasheet Technical support: Support@elecfreaks.
Electronic Alarm Clock Kits Note： One end of IC socket has a small concave. This end shall in the same direction with the concave mark on PCB board.You can see the above picture for reference. There is a small concave on both IC and socket.Plug IC into socket according to the direction of concave.
Electronic Alarm Clock Kits Note: 1. Battery base belongs to surface mount type. Before soldering, you have to add tin to a side of solder plate. 2. Battery base has positive and negative point. 3. The mark for battery base on PCB board has a horizontal line. When soldering, you have to make the iron plate of battery base mounted on the line marked on PCB.
Electronic Alarm Clock Kits You can solder microswitch according to the picture above. Ø Step Ten：Solder Buzzer Buzzer Solder buzzer onto the green circle area pointed out in the picture below. Product datasheet Technical support: Support@elecfreaks.
Electronic Alarm Clock Kits Note: 1. Buzzer has positive and negative point. 2. Usually, you can see the positive point marked. 3. The pins of buzzer are comparatively longer. Ø Step Eleven: Solder DC Socket DC Socket DC socket is the main power supply port of electronic clock. You can solder DC socket according to the picture below.
Electronic Alarm Clock Kits Ø Step Twelve：Solder LED Display Before soldering, we have to test LED display first. Supply power to LED display and check the number showed on the screen. If it works well, then you can start soldering. LED Display Note: The third number shall be placed upside down. Once you have completed soldering.
Electronic Alarm Clock Kits Note: Originally, there is a protection film on the surface of LED display and both side of film paste. Before pasting film, you have to tear down the original protection film on the surface of LED display and backside of film paste.The backside of film paste is adhesive, you can paste it on LED display directly.
Electronic Alarm Clock Kits Bottom Left Right Front Product datasheet Technical support: Support@elecfreaks.
Electronic Alarm Clock Kits Back After these parts assembled with PCB board, we have finished installation of electronic clock. 4、Test & Settings Ø Test After installation completed, you have to reset circuit so that it can work properly.
Electronic Alarm Clock Kits Ø Alarm Clock Hour Adjustment: Press "OK" key(functional key)，then hour digital tube display will start to flash. Press "+" key to adjust hour. Ø Alarm Clock Minute Adjustment： Press "OK" key(functional key)，then hour digital tube display will start to flash. Press "+" key to adjust hour. Ø Alarm Clock ON/OFF: Press "OK" key, then the digital tube display illuminate but not flash.
