TJ-56-228 is a NE555 Electronic Keyboard Music Playing Module Electronic Soldering DIY Kit. Make different sounds by pressing different buttons.
It is a very interesting DIY electronic product which enables users to understand the circuit more clearly and learn soldering skills.
1>.Product Name: TJ-56-228 NE555 Electronic Organ Music Playing Module DIY Kit
2>.Work Voltage:DC 3V-12V
(The key cap color is random in different batch, not always the same as picture)
1>.User needs to prepare the welding tool at first.
1.1>.Soldering iron (<50 Watt)
1.2>.Rosin core ("radio") solder
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>.It is strongly recommended to read the installation manual before starting installation!!!
11>.Please wear anti-static gloves or anti-static wristbands when installing electronic components.
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