Harman Kardon ESQUIRE 2 Service Manual ▷ View online
2
4
3
5
D
C
B
A
6
1
B
C
D
A
USB FOR CHARGING
1
2
S6
1
2
S1
1
2
S2
1
2
S5
1
2
S4
R191
1K
ESD2
1
2
D11
White
ESD3
ESD1
ESD5
ESD4
1
2
3
4
5
6
J7
EJ365S6A2BB0-03R
ESD7
ESD6
G1
G2
COM+
R
BG
LED2
19-237/R6GHBHC-M01/2T
1
2
S3
1
2
D10
White
1
2
D12
White
1
2
D13
White
1
VBUS
2
D-
3
D+
4
G
5
SHIELD
6
SHIELD
J6
USB
R192
0
5%
1
2
D14
White
1
2
D15
Red
1
VCC
2
D-
3
D+
4
NC
5
GND
6
GND
7
NC
8
NC
9
NC
10
11
J5
MICRO USB
R72
0
5%
C51
10nF
0603
50V
BAT_LED1
BAT_LED2
BAT_LED3
BAT_LED4
BAT_LED5
BAT_LED_RED
LED_3V3
AUX_JACK_RIGHT
AUX_JACK_LEFT
VOL_UP_SW
VOL_DN_SW
BT_SW
POWER_SW
V_BATTERY
PHONE_SW
VUSB_IN
USB-D-
USB-D+
USB-D-
USB-D+
VBUS+5V
DM_IN
DP_IN
DM_IN
DP_IN
MULTI_RED
MULTI_BLUE
MULTI_GREEN
MCU_3V3
MUTE_SW
SCHEMATICS DIAGRAM - MAIN BOARD_IO/LED/KEY PART
A
D
C
B
1
6
A
B
C
D
2
3
5
4
V10: 2015-03-24
2
1IN-
4
GND
3
1IN+
1
1OUT
8
VCC
U7-A
NC
C72
NC
C73
NC
C60
100nF
R81
0
R78
0
C59
33pF
2
1IN-
4
GND
3
1IN+
1
1OUT
8
VCC
U6-A
NC
6
2IN-
5
2IN+
7
2OUT
U6-B
NC
R80
0
R77
0
C52
NC
C54
NC
R82
NC
0402
C53
NC
R79
NC
0402
R104
0
R101
0
2
1IN-
4
GND
3
1IN+
1
1OUT
8
VCC
U9-A
NC
6
2IN-
5
2IN+
7
2OUT
U9-B
NC
R103
0
R100
0
C67
NC
C69
NC
R105
NC
0402
C68
NC
R102
NC
0402
R83
N
C
0402
R84
N
C
0402
R98
N
C
0402
R99
N
C
0402
C58
NC
R92
NC
0402
R87
NC
0402
R86
NC
0402
C66
NC
10V
10V
R89
NC
0402
R91
NC
0402
D4
NC
D3
NC
D2
NC
R88
NC
0402
1
B
2
E
3
C
Q6
NC
R85
NC
0402
C64
NC
10V
R96
N
C
0402
D5
NC
R94
N
C
0402
C70
100nF
C71
2.2uF
C61
100nF
C62
2.2uF
R106
NC
0402
R107
NC
0402
TP33
TP36
1
AMP/BIAS/INA
2
DIODES/BIASA
3
+INPUTA
4
-INPUTA
5
OUTPUTA
6
V-
7
BUFERINA
8
BUFEROUTA
9
BUFEROUTB
10
BUFERINB
11
V+
12
OUTPUTB
13
-INPUTB
14
+INPUTB
15
DIODESB
16
AMP/BIAS/INB
U8
NC
C63
NC
25V
C56
NC
C55
NC
L8
NC
C57
NC
25V
C65
NC
10V
6
2IN-
5
2IN+
7
2OUT
U7-B
NC
R93
NC
0402
R97
N
C
0402
R95
NC
0402
R90
NC
0402
L9
1K ohm
R204
NC
0402
R205
NC
0402
R206
NC
0402
R207
NC
0402
BIAS_OPA
BIAS_OPA
BIAS_OPA
AUDIO_RP
AUDIO_LP
V_AMP_10V
SCHEMATICS DIAGRAM - MAIN BOARD_ DRC PART
A
D
C
B
1
6
A
B
C
D
2
3
5
4
3.7V/3200mAh Li-lon
ILIM=45/R168=3A
ICHG=2400/(R152*R169)=1.76A
ICHG=2400/(R152*R169)=1.76A
Optional
C147
4.7uF
10V
C148
100nF
C143
NC
25V
C144
2.2uF
C145
2.2uF
R164
4.12K
1%
L19
1.5uH
FB
3
10
0603
1%
C141
4.7uF
C149
1uF
R157
453K
1%
R160
910K
1%
R163
910K
1%
1%
R167
390K
1%
1%
R1
51
120K
R1
50
100K
R149
NC
0402
TP49
TP50
D9
5.6V
R154
21.5K
1%
R158
5.1K
1%
1%
R161
1K
0402
1%
R162
1K
0402
1%
R168
15K
1%
R169
68.1K
1%
C146
10uF
25V
C151
330nF
R153
33
0402
5%
R156
33
0402
5%
R166
10K
1%
C150
47nF
R165
0
0402
1%
C172
100nF
C142
22uF
10V
R152
0.02
1206
1%
R1
93
51K
5%
R194
NC
0402
R195
NC
0402
R196
0
0402
1%
1
2
3
4
5
J4
1
N/C
2
CHG
3
BOOST
4
CSP
5
BATT
6
AGND
7
OLIM
8
ISET
9
NTC
10
FB
11
ACOK
12 REG
13
TMR
14 PWIN
15 ILIM
16 VCC
17
VB
18 EN
19 MODE
19 MODE
20 VIN
21
SYS
22
SW
23
PGND
24
PGND
U15
MP2637
C154
47nF
R177
NC
0402
R155
15K
1%
R159
5.1K
1%
L18
0.12
1%
R201
NC
0402
R202
NC
0402
1
+IN
2
-VS
3
-IN
4
OUT
5
+VS
U18
NC
C165
NC
0402
R203
NC
R208
NC
0402
R210
NC
R209
NC
0402
1
G
2
S
3
D
Q5
NC
C166
NC
0402
C170
NC
0402
R211
NC
0402
V_BATTERY
USB_5V_IN
V_BAT_ADC
VUSB_IN
V_BAT_ADC1
ACOK
VSYS_5V
USB-D-
USB-D+
D-
D+
VSYS_5V
CHARGE_EN
CHG
ACOK
VUSB_IN
D+
D-
SCHEMATICS DIAGRAM - MAIN BOARD_CHARGER PART
2
4
3
5
D
C
B
A
6
1
B
C
D
A
From ANT with RF Cable
To MIC Module
R59
0
1%
R60
0
1%
C42
100nF
C41
10uF
25V
C40
1uF
1 B
2
E
3
C
Q4
LMBT3904LT1
R4
3
10K
R49
10K
R54
47K
R62
0
1%
R65
0
1%
TP12
R37
10K
C43
100nF
R38
120K
R6
8
100K
R6
9
100K
R7
0
100K
R7
1
100K
R58
220
0402
1%
R57
220
0402
1%
R56
220
0402
1%
R55
220
0402
1%
R39
220
0402
1%
R40
220
0402
1%
R41
220
0402
1%
R44
220
0402
1%
R3
4
0
1%
TP14
TP13
TP9
1
VDD
2
PF0
3
PF1
4
NRST
5
VDDA
6
PA0
7
PA1
8
PA2
9
PA3
10
PA4
11
PA5
12
PA6
13
PA7
14
PB0
15
PB1
16
VSS
17
VDD
18
PA8
19
PA9
20
PA10
21
PA11
22
PA12
23
PA13
24
PA14
25
PA15
26
PB3
27
PB4
28
PB5
29
PB6
30
PB7
31
BOOT0
32
VSS
U5
STM32F030K6T6
1
AIO0
2
AIO1
3
GND
4
PCM_OUT
5
PCM_SYNC
6
PCM_CLK
7
PCM_IN
8
GND
9
SPI_CLK
10
SPI_MISO
11
SPI_CSB
12
SPI_MOSI
13
UART_RX
14
UART_TX
15
LED0
16
LED1
17
LED2
18
RESET
19
PIO10
20
PIO11
21
PIO12
22
PIO13
23
I2C_SCL
24
I2C_SDA
25
GND
26
USB_D+
27
USB_D-
28
GND
29
V5.0_BAT_CHG_IN
30
1V8_OUT
31
VDD_PADS
32
VDD_MEM
33
VREG_EN
34
VBAT
35
GND
36
PIO21
37
PIO22
38
PIO23
39
PIO24
40
PIO25
41
PIO26
42
PIO27
43
PIO28
44
GND
45
MIC_BIAS_A
46
MIC_BIAS_B
47
MIC_RN
48
MIC_RP
49
MIC_LN
50
MIC_LP
51
GND
52
SPK_LN
53
SPK_LP
54
SPK_RN
55
SPK_RP
56
GND
57
RF-IN
58
GND
U4
BM870_BT_MODULE
R47
100
MOSI
CSB
MISO
CLK
R42
220
0402
1%
R45
220
0402
1%
1
2
3
J1
ATOM010310010029
RF_TEST1
L4
0
1%
L5
NC
0402
C39
NC
R46
560
0402
5%
C46
10uF
25V
C45
100nF
L6
1K ohm
C44
1nF
R52
10K
R51
NC
0402
R50
10K
R53
10K
R48
100K
0402
1%
TP19
TP20
R63
0
0402
1%
R64
100K
0402
1%
TP29
TP8
L7
1K ohm
R73
0
R74
47
C48
100nF
L22
1K ohm
R66
0
R67
47
TP11
R36
0
1%
R35
100K
TP7
R75
10K
R76
10K
R176
100K
R197
100K
R198
100K
C47
1uF
C49
100nF
TP23
1
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
10
11
12
13
14
11
12
13
14
J8
TP22
SD_AMP
AMP_MUTE
MCU_3V3
BAT_LED3
BAT_LED_RED
BAT_LED1
BAT_LED2
POWER_SW
PHONE_SW
MUTE_SW
VOL_DN_SW
VOL_UP_SW
BT_RX
BT_TX
CHARGE_EN
POWER_HOLD
POWER_STBY
V_BAT_ADC
MCU_3V3
MCU_3V3
BAT_LED4
BAT_LED5
MCU_3V3
BT_RX
BT_TX
V_BAT_ADC1
BT_RST
D+
D-
PCM_IN
PCM_SYNC
PCM_CLK
SPK_R_P
SPK_R_N
SPK_L_P
SPK_L_N
MULTI_BLUE
MULTI_GREEN
MULTI_RED
BT_3V3
MCU_3V3
ADC_RESET
/STATUS
/FAULT
USB_CHG_EN
AUDIO_DET
BT_3V3
ADC_5V_EN
PIO12_CLK
PIO13_DATA
BT_3V3
CHG
PIO13_DATA
MCU_3V3
PIO12_CLK
PIO11_DATA
MCU_3V3
PIO10_CLK
PIO10_CLK
PIO11_DATA
CHG_0.5/1A
BT_SW
MCU_3V3
ACOK
BT_RST
MCU_3V3
BT_RST
SYS_RST
DFU_5V
SCHEMATICS DIAGRAM - MAIN BOARD_ BLUETOOTH_MCU PART
Click on the first or last page to see other ESQUIRE 2 service manuals if exist.