ICStation Amplified Dual Speaker Kit

The ICStation Amplified Dual Speaker DIY Kit is Perfect for those Who want to Practice Building Electronics, and then have an Awesome Device when Complete. 

Features about this Kit:

• Easy to Assemble.
• Inexpensive.
• Quality Components. 
• Easy to Modify.
• Audio Level LED Display.
• Adjustable LED Sensitivity. Adjustable Amp Level.
• USB Powered. Perfect for Power Banks when going Portable.
• Stereo Audio is Pleasing.
• Perfect for Radios/Phones/Tablets/MP3 Players with Tiny Speakers, or No Speakers at All.
• Clean PCB Design, Nice Clear Enclosures, You are going to have one awesome Stereo Speaker System when complete. 

• There is a white gap and indicating arrow on PCB silk screen at U1 and there is a mark(dot) on IC.
• These two marks are corresponding to each other and are used to specify the installation direction.

Choose Pin1 pad which has been indicated by arrow on the PCB, and then melt the solder on this pad

• Use a soldering iron to melt tin on the pad just now and hold IC with tweezers in the other hand to place/press on U1 to prevent movement.
• Take care to match and align each pins to pads. 
• Then remove soldering iron after align pins.
• Remove tweezers after solder tin cooling and solidification.

Tips for one method(Users can also ignore and use other methods):

1. Use a large amount of solder tin to cover all pads.
2. Make sure all pins and pads are covered with tin.
3. Use a soldering iron to keep the tin in the melting state. At the same time, use a solder sucker or desoldering braid to remove the excess solder.

Install 1pcs 330ohm Metal Film Resistor at R3

Install 2pcs 10Kohm Metal Film Resistor at R2,R4.

Install 1pcs 24Kohm Metal Film Resistor at R1.

There is a corner on the components and screen prints, which are corresponding relations, which are used to lock the installation direction.

There is a white mark on PCB silk screen printing where the negative(cathode) can insert into.The shorter lead is negative(cathode) pole.

There is a white mark on PCB silk screen printing where the negative(cathode) can insert into.The shorter lead is negative(cathode) pole.

Install 1pcs 50Kohm 503 Potentiometer at RP1 and 10Kohm 103 at RP2.

1. The leads of the LED must be installed correctly, otherwise the LED cannot be turned on.

Pay attention to distinguish between positive and negative.

Use the same method to install another PCB.

Note: The wire color is random, but the wiring mode remains the same.

Note: Black or white wire connect to IN- pad at right, Red wire to middle pad and Black wire to left pad.

Note: Red wire connect to ‘ + ’ terminal.

Note: Red wire connect to ‘VO+ ’ pad.

Note: Red wire connect to ‘+5V’ pad.

Connect two PCB by 1pcs 70cm 4Pin Audio Wire on P1,P2 at 4pad : ‘+5V’ ‘GND’ ‘IN+’ and ‘IN-’.

Note:The wire color must match the silk screen mark to avoid misplaced connection. Such as: Yellow or Black wire to ‘+5V’ pad; Green wire to ‘GND’ pad; Red wire to ‘IN+’; Blue wire to ‘IN-’.

Test And Adjust Volume And Adjust Sensitivity.

1. USB wire connect to work voltage and AUX plug connect to sound source equipment such as PC/Phone and then play music. It is OK if the music plays normally and the LED flashes.
2. RP1 50Kohm 503 Potentiometer is used to adjust volume.Turn clockwise to increase the volume.
3. RP2 10Kohm 103 Potentiometer is used to adjust LED spectrum flicker sensitivity.Turn clockwise to increase the sensitivity. The higher the sensitivity, the more LED are turn ON at the same sound decibel.
4. Note:The volume and sensitivity must be adjusted first, otherwise they cannot be adjusted again after installing the acrylic board.

Fix 4pcs M3*5+6mm Nylon Column Screw on PCB by 4pcs M3 Nut.

Tear off the protective film on the surface of acrylic board.

Fix PCB on one acrylic board by 4pcs M3*5mm Screw.

Fix 4ohm 3W Speaker on other acrylic board by 4pcs M3*6mm Screw and 4pcs M3 Nut.

Note:Please be patient in splicing and fixing the acrylic board. Wire are reserved at the acrylic notch.