GeekLJT Rechargeable Bluetooth Speaker Soldering Kit Installation Guide
- June 16, 2024
- GeekLJT
Table of Contents
GeekLJT Rechargeable Bluetooth Speaker Soldering Kit
Note
Due to the upgrade of the PCB board, the manual will be different, there
are currently two versions of the manual can be downloaded. Please refer to
the corresponding user manual.
Introduction
Rechargeable Bluetooth Speaker Soldering Kit
- Small Size
- Support 5.0 Bluetooth
- Beautiful appearance
- Excellent sound quality
- Colorful flash LEDS
Product parameters
| parameter | value |
|---|---|
| Name | Rechargeable Bluetooth Speaker Soldering Kit |
| Size(installed) | 80mm80mm65mm |
| Battery Needed | 14500 li-ion batteries |
| Sound Channel | 1 |
| Work Voltage | 3.7V |
| Work Temperature | -30℃~80℃ |
Function Demo
- S1 – Power Key
- S2 – Back/Volume down Key
- S3 – Next/Volume up Key
Switch Mode
Press S1 3 seconds to turn on/off the speaker.
Adjust receiving frequency
Short press S3/S2 to switch to the next/back audio.
Adjust the volume
Long press S3/S2 to up/down volume
Application
Component Listing
| No | Name | PCB Marker | Quantity |
|---|---|---|---|
| 1 | Metal Film Resistor 100Ω | R1 | 1 |
| 2 | Metal Film Resistor 10KΩ | R2 | 1 |
| 3 | LED (Green, Red, Yellow) | D1,D2,D3,D4,D5 | 5 |
| 4 | The Chip | 1 | |
| 5 | Electrolytic Capacitor 10uF | C1 | 1 |
| 6 | Electrolytic Capacitor 1uF | C2 | 1 |
| 7 | Potentiometer 10K | R3 | 1 |
| 8 | 2 Pin Wire Base | UCC/AUDIO | 2 |
| 9 | 2 Pin Wire | 2 | |
| 10 | LED PCB Board | 1 | |
| 11 | Bluetooth Main Board | 1 | |
| 12 | 14500 Battery Case | 2 | |
| 13 | 4ohm 3W Speaker | 1 | |
| 14 | Nylon Pillars | 2 | |
| 15 | Screws+Nuts | / | |
| 16 | Acrylic Shell | / |
Installation Tips
- Before installation, users need to prepare the welding tools in advance.
- The installation process requires enough care and patience.
- Be sure to read through the installation instructions before starting the installation.
- Welding sequence: components from high to low
- In order not to damage the components, the soldering iron should not touch the components for too long.
- Pay attention to the positive and negative markings on the pcb, long pin of the component is positive.
- Ensure that similar components with different parameters are placed in the correct position on the pcb.
- Wearing anti-static gloves or anti-static wristbands is better.
- Ensure that components are not accessible to children.
Installation Steps
Step1: Install 5 LEDs
Mark: D1~D5
Step2: Install the chip
Tips:
Color order can be adjusted according to personal preference.
Tips
The chip’s notch corresponds to the silk-screened area circled on the PCB
board.
Step3: Install metal film resistor
Tips
Need to measure the resistance with a multimeter.
Mark
- 100Ω – R1
- 10KΩ – R2
Step4: Install 10K Potentiometer
Mark
R3
Step5: Install Electrolytic Capacitor
Mark:
1uF – C2
10uF – C1
Step6: Install 2pcs 2 Pin Wire Bases
Mark
UCC
AUDIO
Step7: Plug in 2 pin wires
Step8: Install 2 pcs nylon pillars
Tips
1.Cut off the black wire pointed out in the picture(Red Arrow Line). 2.Install
2 pcs nylon pillars at the light PCB board.
Step9: Soldering the wires between PCB board& Bluetooth motherboard
- Pay attention to the location of each wire connection, find wiring location according to wire number(1,2,3) or color identification(Red | Blue | Black) .
Step10: Tear off the protective film
Step11: Fix the speaker to the front acrylic shell
Tips
Tear off the protective film on all the shells first, start installing the
shell.
Tips
Fix the speaker to the front acrylic shell with 3*6mm screws and nuts.
Step12: Fix 2 pcs battery bases to the bottom acrylic shell
Step13: Use two metal wires to connect the battery box
Tips:
Fix 2 pcs battery bases to the bottom acrylic shell with 3*6mm screws and
nuts.
Tips
Two positive terminals connected together, two negative terminals connected
together. The two ends of the metal wires are fixed with solder on the patches
at the ends of the battery bases. Install 2pcs 14500 batteries(prepare by
yourself)
into the battery bases
Step14: Fix batteries with small acrylic panel
Step15: Soldering the battery base and speaker wires
Tips
Fix batteries with small acrylic panel and 2pcs Copper Pillars, Use 5mm screws
to fix both ends of the copper pillar.
Tips
The red wire to the positive battery base, the black wire to the negative(-)
battery base.
Step16: Fix 3pcs copper pillars
Step17: Fix the light board to the top acrylic shell with screws
Tips
fix 3pcs copper pillars of the bluetooth mainboard with 5mm short screws.
Tips
Need to place the keys in advance before fixing the bluetooth mainboard.
Step18: Fix the Bluetooth mainboard to the top acrylic shell
Step19: Connecting battery base, speaker and motherboard
Tips
First insert three transparent key covers ( protective film on the key covers
also need to tear off), note that the wide end of the key cover on the keys,
the narrow end through the acrylic shell. Then use 5mm short screws screwed in
the copper column to fix the acrylic shell.
Tips
The speaker wire is inserted into the “1” position and the battery wire is
inserted into the “2” position, and test. Long press the middle key on the
bluetooth mainboard to turn on, the other two buttons short press to switch
the previous/next song, long press to adjust the +/- volume, Bluetooth name:
M&G-A3.
Step20: Install all the shells
Tips
Fixed shell, the front (with speakers), back (with 6 holes) shell and top(with
motherboard and light board), bottom(with battery box) shell with screws and
nuts fixed together. Then fix the left and right shell.