Read Harman Kardon ESQUIRE 2 Service Manual online
harman/kardon
Service Manual
ESQUIRE 2
Portable, wireless speaker and conferencing system
Black/Champagne Gold / Space Gray
Released Global Quality 2015 Harman International
Rev.1.0, 07/2015
500 Balboa Boulevard
Northridge, California 91329
3
4
4
SET BLOCK DIAGRAM
DISASSEMBLY PROCEDURE
MODE MATRIX
15
SCHEMATICS DIAGRAM
16
LAYOUT DIAGRAM
23
MECH EXPLODED VIEW
25
SPARE PARTS LIST
CONTENTS
TECHNICAL SPECIFICATIONS
26
2
Technical Specifications
Description
Specification
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miter at 1% THD).
Please refer to Acoustic Design Specification.
Input Sensitivity
Aux : 370mV +/- 10%
BT : -9dBFs +/- 1dB
BT : -9dBFs +/- 1dB
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BT : 0dBFs
Frequency Response (Output Power)
AUX: 20Hz to 20KHz +/- 1dB (EQ setting is disable)
BT: 20Hz to 19KHz +/- 1dB (EQ setting is disable)
BT: 20Hz to 19KHz +/- 1dB (EQ setting is disable)
Frequency Response (Output Power) with
EQ setting
EQ setting
TBC
THD+N at 1W
<0.5%@6~7KHz, others<0.3%
THD+N at Rated Output Power
<1%
Signal-to-Noise ratio at Rated Output Power 80dB (A-Weighted)
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35dB - 50dB @1KHz
30dB - 45dB @10KHz
30dB - 45dB @10KHz
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75dB @1KHz
70dB @10KHz
70dB @10KHz
Inter Channel Gain Difference
<0.5dB
Residual Noise
80
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10 minutes have no any music in or input sensitivity is less than
4mV at 1KHz
4mV at 1KHz
(2) Auto wakeup when BT into standby mode by BT or 3.5mm
Aux in audio(>4mV at 1KHz)
Aux in audio(>4mV at 1KHz)
(3) Auto shutdown system power
30 minutes BT no connected and no audio in
signal(<4mV,1KHz), then should wake up by pressing power
button
30 minutes BT no connected and no audio in
signal(<4mV,1KHz), then should wake up by pressing power
button
Description
Specification
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300Kbps (over UART)
Antenna External
ANT
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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
SET BLOCK DIAGRAM
Esquire2 Disassembly
procedure
procedure