Something about the Electronic Clock Kit

Just want to say that those who believe that it is cheaper to buy ready-made, more cannot read! This article is for those who have little interest in, or interested in radio electronics. And as for those who have decided to join this hobby.

Radio-electronics, I got carried away while still a schoolboy. This case comes in the form of small package. We reveal, look what's inside. Set Ingredients - Fee - Seven Segment digital displays with a point - 4 pieces - Chips - 2 pieces (resistors, capacitors, transistors, quartz, and other elements) - power cord - Details housing - Instruction manual is included in the Chinese language. To assemble DIY LCD clock kit enough (the language of circuitry common to all), but the setting had a problem. The building process we need: - the soldering iron; - solder; - side cutters; - Knife assembly decided to recite with passive components (resistors, capacitors, buttons and etc.).

The kit comes two types of resistors (510 and 4.7K), marking them color. You can use a calculator or ohmmeter. But in fact, everything was much simpler, they were signed. Then cut side cutter too much, and in one fell swoop to solder all. In this photo visible trained contact resistors and a number have already soldered. Soldered buttons Sockets for ICs, do not forget to monitor the correct position on the key (notch at one end of the panels). It requires digit control soldered onto the diode, because he does not care which side! It came to transistors, quartz, connectors for 24V 1A power supply and socket for the battery. Check the correct installation of transistors, it is also important! The blessing and the diagram on the board and it is marked all. All, all elements on that side in the place left solder digital segments. We arrange them in their places, and do not forget to turn up a single point! And also one calling soldered. All watches are assembled, drumroll, the moment of truth ... is connected to the power source.