Block Diagram
1
1
2
2
3
3
4
4
D D
C C
B B
A A
MCU
Audio Amp
Speaker
Bluetooth Module
SW1
SPI FLASH
U1
1.5AA*2
4.5V
Switch and Volume
Sound button
Module power
654800 Block diagram
U2
U5
U3
N570H064A-0C83
TM1003-TW021
GPY0030C-HS011
PTC
0.75A
TIDBT008
Mode
Chord1
Chord2
Chord3
Whammy Bar
String
vibroswitch
Crystal Osc.
24MHz