Read Harman Kardon ESQUIRE MINI Service Manual online
Block diagram
AMP
Aux in
Port
4ohms x2
4W x 2
4W x 2
Audio Detect
Limiter (LM13700)
Comparer
(BA4560R
(BA4560R
FV)
Attract and
release time
(T=RC)
AMP
TPA3130D2
2X4W
ADC
AK5358A
Analog
audio
audio
BA4510FV
Li
mi
ter
(BA
4510FV)
Li
mi
ter
(BA
4510FV)
Audio Signal
Control
Power
MCU
STM32F030K6T6
BT and DSP
CSR
BC05MM
ANT
Five Buttons
LEDs for indicating battery
capacity and other status
UART
I2S
DC DC boost
6~7V for Amplifier
Power
MWM MIC x2
D+/D-
Upgrade MCU and BT
DC-DC boost
TPS61085
10V for LM13700 and BA4560
DC-DC boost
LM3481
BQ24270/1
Charge current
up to 1A that
depends on the
5V for ADC
Micro USB
Port
LDO
LDO
LP5900
3.3V for BA4510
Upgrade MCU and BT
I2C
SW
SW
SW
3.3V for ADC
3.3V for BT and MCU
Rechargeable
Battery Li-Ion
O / ff
LDO
power sources
Battery consumption:
1. Power off Current < 100uA
DC-DC boost
TPS61085
TPS2546
USB Port for
charging other
devices with
max 1A current
5V/1A
0
3.7V/2000mAH
On/off
Switch
LDO
LP5900
2. Power on with play silent
signal at BT mode <155mA
signal at BT mode <155mA
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