Read Harman Kardon ESQUIRE 2 Service Manual online
Block Diagram
Block Diagram
AƩract and
Audio Signal:
Comparer
BA4560FV
AƩract and
release Ɵme
T=RC
Limiter
NJM/LM13700
Audio Signal:
Power Signal:
Control Signal:
Aux
SPK
L&R
Aux
A di
AMP
m
iter
560FV
m
iter
5
60F
V
O
P
5
60F
V
2 OHMs x 4
L&R
L&R
ADC
Audio
Detect
TPA3130D2
2X8W
Li
m
BA4
Li
m
BA4
5
O
BA4
5
2 OHMs x 4
ADC
AK5358A
GPIO
I2S
I2C
Shut down/mute
ANT
Buttons
GPIO
BT
ANT
MCU
PIC16LF1513
LEDs
UART
BM870
Digital Mic
x 4 MEMS
x 4 MEMS
PIC16LF1513
DC/DC
x 4 MEMS
DC/DC
Boost
MP3428
10V for AMP/OPA
itch
USB upgrade BT and MCU
D+ D
LDO/SW
5V for ADC
Charger
MP2637
1A
w
itch
LDO/SW
SGM2036
3.3V for ADC
Sw
D+ D-
Power
supply
5V
5V for ADC
1A
Micro USB
Sw
DC/DC
Boost
MP3428
Charger
controller
TPS2546
USB 5V OUT for charging other
devices with 0.5A and 1A Current
devices with 0.5A and 1A Current
5V
5V
Battery
3.7V/3200mAh
5V/1A
MP3428
TPS2546
3.3V for BT/MCU
LDO
SGM2036
SGM2036
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