Read Harman Kardon HK 3700 Service Manual online
6
5
B
1
2
3
4
5
D
C
B
A
6
C
D
A
APPROVE
CHECK
DESIGN
DRAWING NO
MODEL
SHEET
SCHEMATIC DIAGRAM
REVISION
1
2
3
4
5
6
7
CUP12456Z
NC
BT_STATUS_PAIR
POW
ER
_ON
V
ER
_OPT
ION
REMOTE_IN
VS
S
VDD
NC
NC
NC
XTA
L_
IN
XTA
L_
O
UT
RE
SE
T
KEY
1
KEY
2
28
. KEY
_IN
PU
T_
IN
T
29.
V
OL_L_CON
T
30.
VDD
31
. V
SSA
32.
VRE
F
33.
VDDA
34.
N
.C
36. U
A
RT
_T
X_
RE
SE
RVE
D
VSS
VDD
SCP1_CS
DSP_CODEC_CLK
DSP_MISO
DSP_CODEC_MOSI
NC
NC
VDD
SCP1_CS
DSP_CODEC_CLK
DSP_MISO
DSP_CODEC_MOSI
NC
NC
TUNER_SDA
BOOT1
TUNER_SCL
VSS
VDD
VDD
DIR_RST
DIR_CE
DIR_CE
DIR_MISO
HDM
I_P
O
W
ER
_S
W
1
NC
VSS
VDD
VDD
NC
NC
DSP_RST
DSP_MODE1_SEL
CODEC_MUTE
M
AI
N
_V
OL_DAT
A
M
A
IN
_V
OL_CLK
VCAP
VDD
VDD
VFD_CL
K
VFD_CE
VS
S
VDD
V
OL+
V
OL-
DSP_SCP1_IRQ
DSP_PCP_BSY
DSP_PCP_BSY
VS
S
VDD
*OT
G
_FS
_VB
US
*OT
G
_FS
_I
D
103.
*OT
G
_FS
_DM
104.
*OT
G
_FS
_DP
105.
DE
BU
G
(JT
M
S)
106.
VCAP
107.
VS
S
108.
VDD
DEBUG(JTCK)
DEBUG(JTDI)
NC
NC
NC
VSS
VDD
NC
EEPROM_SCL
EEPROM_SDA
VSS
VDD
DEBUG(JTDO)
DEBUG(NJTRST)
BOOT0
RFU
VDD
US
B_
OE
VFD_DAT
A
HP
_M
U
TE
NC
FUN
C
_M
UT
E
75.
N
C
73.
S
PK
1
74.
S
PK
2
76.
N
C
77.
P
O
R_N
78.
N
ET
_P
W
R_S
W
79.
N
C
80.
N
C
81.
US
B_
SE
L
1.
DC P
R
OT
ECT
3.
P
O
WER
_D
O
WN
4.
Z1
_T
R
IGGER
5.
HP
_I
N
6.
VB
AT
7.
S
IGNA
L D
ETEC
T
8.
OS
C32_I
N
9.
OS
C32_OUT
2.
P
O
W
ER_FAI
L
(2.8V RESET)
STM32F20XX
STM32F10XX
MCU OPTION
ST
M
32F20X
X
ST
M
32F10X
X
M
C
U OPT
ION
MCU_JTEG
35.
N
.C
<=> DSP/CODEC
<=> TUNER CONTROL
<=> JTAG
SDA SCL
E0
E1
E2
VSS
VCC
/WC
TXD
RXD
BOOT
MCU+3.3V
* DEBUG & UPDATE
MCUGND
RESET
RE
C
_M
U
TE
TU
NER
_MU
TE
SH
OR
T_
PR
OT
EC
T
BT
_P
W
R
_CT
L
NC
NC
NC
NC
NC
VOLTAGE_SEL1
NC
DEBUG_TX
DEBUG_RX
DEBUG_RX
BT_FN1
BT_FN2
BT_FN2
HDM
I_P
O
W
ER
_S
W
2
VFD_RS
T
NC
AMP_VCC_CONT
ST_LED_CONT
NC
BT_FN3
NC
CHORUS_VBUSDRIVE
VOLTAGE_SEL2
NC
NC
NC
BT_STATUS
POWERON_LED_CONT
NC
TXC
<=> FRONT PCB
KEY
_IN
PU
T_
IN
T
VOL_L_CONT
<=> FRONT PCB
NC
2013.10.11
MULTI. LAB
ANAM
ISSUE
LPP
NC
TEMP OUT
GND
+5V_D
GS0
GND
OUT
VDD
GS1
TEMP. SENSING
<=> BT PCB
(ST_MCU)
27
13
MILAN VBUS DETECT
ON : HIGH
Option
* MODEL
REMOTE IN
<=> J
A
CK P
CB
+3.3V
ST+5V
+12V
Z1_TRIGGER
Z1_TRIGGER
REMOTE_OUT
DGND
COAX
COAX
OPT1
DGND
MODEL
R1475
HK3700 /3770
DGND
OPT2
OPT2
UART_RX_RESERVED
2013.08.08
2013.08.08
R1474
Vin(V)
HK3700
HK3770
HK3700/230
HK3770/230
HK3770
HK3700/230
HK3770/230
0
0
0
OPEN
OPEN
10K
10K
10K
22K
3.3
1.65
2.27
1.65
2.27
2013.10.11 2013.10.11 2013.10.11
C.D.W
S.K.S
K.J.K
C1426
0.1u
F
C1437
150P
R
1487
47K
R1484
10
R
1486
10K
R1488
10K
D1403
D
1404
CV
D
1S
S355T
R1489
10K
R
1490
10K
C1419
10/16V
R1485
10K
R1482
NC
R1466
0
C1418
1000P
R1435
10K
R1434
10K
R1480
10K
C1417
0.1uF
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99 100 101 102 103 104 105 106 107 108
109
110
111
112
113
114
115
116
117
118
119
120
121
123
122
124
125
126
127
128
129
130
131
132
134
133
135
136
137
138
139
140
141
142
143
144
IC1401
R1451
33
R1450
33
R1416
100
R1481
10K
C1411
0.1u
F
VSS
VI
N
VO
U
T
3
2
1
1
2
3
IC1406
CVIML61C282PR
OPEN
R1463
OPEN
R1467
0
R1468
0 (NC)
C1414
0.01uF
C1406
10V
/2.2u
F
R
1426
0 (NC
)
C1407
10V
/2.2u
F
9
8
7
6
5
4
3
2
1
W
F1402
R1414
0
R1446
100
R
1415
10K(N.C
)
C1427
0.1u
F
C1428
0.1u
F
C1429
0.1u
F
C1430
0.1u
F
C1431
0.1u
F
C1432
0.1u
F
C1433
0.1u
F
C1434
0.1u
F
C1435
0.1u
F
C1436
0.1u
F
R1470
10K
R1471
10K
R1472
10K
R1452
33
Q1407
HVTKTA1504SYRTK
Q1408
HVTKTC3875SYRTK
R1457
2.7K
R1456
2.7K
8
7
6
5
4
3
2
1
IC1403
CVIM24C32WMN6TP
R1458
47K
R
1438
10K
R1417
100
R
1432
10
R
1433
10
R
1425
10K
R
1424
10K
R
1413
10K
R
1412
10K
R
1454
4.7K(OP
EN)
R1447
100
R1448
0
R1449
33
R1443
33
R1444
33
Q1403
T1P144C
R1469
10K
R
1428
33
R
1442
10K
T1427
T1416
T1417
T1408
T1409
R1465
1M
R1464
0
1
23
4
X1400
CO
X25000I
120S
T
C1412
12P
C1413
12P
R1483
47K
T1406
T1407
T1405
T1404
T1421
T1422
3
2
1 VIN
GND
OUT
IC1404
CVIDB1510BT3TR33
L1401
CLZ9R005V
C1410
4.7u
F 6.3V
C1409
0.1u
F
C1408
10V
/22u
F
R1461
CRJ10DJ0R0T
0
12
34
56
78
RN1401
100X4
12
34
56
78
RN1402
100X4
R
1431
100
R1453
0
123
4
567
8
RN1400
100X4
1
2
3
4
5
6
7
WF1401
Q1406
1N141C
R1479
OPEN
C1416
0.1u
F (NC
)
R
1477
0
R
1476
0
T1428
R1445
33
T1418
5
4
3
2
1
IC1400
LM94022BIMG
LM94022BIMG
C1405
0.
1u
F
D1401
1SS355
32
1
BN1400
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
17
16
18
19
22
23
21
20
WF1400 CJP23GA299ZN
R
1436
0
R
1437
0
32
1
CN
1400
R
1491
33
R
1459
33
R
1460
0 (NC
)
R
1492
0 (NC
)
Q1405
T1P
144C
Q1404
T1P
144C
C1415
0.01u
F
R1473
10K
R1475
OPTION
R1474
OPTION
R1418
100
R1419
100
R1420
0ohm
100
R
1430
0
R
1478
0
T1414
T1415
T1423 T1424
T1419
T1426
T1411
T1410
T1420
T1425
T1403
T1402
R
1427
33
S
G
D
1
2
3
IC1405
CVICAT809RTBI-GT3
R1462
10K
R1411
10K
Q1401
1N141C
R1401
OPEN
C1401
0.1u
F (NC
)
R1402
10K
T9
T10
T11
T12
T13
T15
T17
T18
T19
T20
T21
T22
T23
T24
T25
T26
11
10
9
8
7
6
5
4
3
2
1
W
F1403
C
JP
11GA
299Z
N
T28
T29
T30
T31
R1493
100
T32
T33
T34
R1494
33
R
1403
33
R
1404
OPE
N
Q1402
T1P
144C
ST+5V
REMOTE_IN
REMOTE_OUT
PO
WE
R
_D
O
WN
IR_IN
PO
W
ER
_H
IGH
VOL
_E
N
1
VOL
_E
N
2
+3.3VC
VF
D_
CS
VF
D_
CL
K
VF
D_
DA
TA
VF
D_
RS
T
REMOTE_IN
DC_PROTECT_IN
PO
W
ER
_FA
IL
M
A
IN
_V
O
L_D
AT
A
M
A
IN
_V
O
L_CL
K
KE
Y1
KE
Y2
M
C
U
_OP
TI
ON
MCU_OPTION
JTAG_TRST
JTAG_JTDO
JTAG_JTDI
JTAG_JTCLK
JTAG_JTMS
RESET
RES
ET
+3.3VC
JTAG_JTMS
JTAG_JTCLK
JTAG_JTDI
JTAG_TRST
JTAG_JTDO
JTAG_JTDO
+3.3VC
+3.3VC
+3.3VC
SCP1_CS
DSP_CODEC_CLK
SCP1_MISO
DSP_CODEC_DATA
DIR_MISO
DSP1_RESET
DSP1_MODE
DIR_RESET
DIR_CE
SCP1_IRQ
SCP1_BSY
PO
R
_N
REM
O
TE
_I
N
PW
R
_S
W
1
+3.3VC
FU
NC
_M
U
TE
HP
_M
U
TE
HP
_I
N
Z1_T
R
IG
G
ER
NE
T_
PWR
_SW
PW
R
_S
W
2
US
B
_S
EL
US
B_
VB
US
MCU_
US
B
_D
M
MCU_
US
B
_D
P
TUNER_SCL
TUNER_SDA
TU
NE
R
_M
U
TE
KE
Y_IN
PU
T_IN
T
V
O
L_
L_
C
O
NT
US
B
_
O
E
RESET
+3.3VC
BOOT
BOOT
AMP_VCC_CONT
BT
_P
W
R
_CT
L
IR
_IN
PO
WE
R
O
N_
LE
D
_C
O
NT
MIC_
IN
HP
_I
N
VF
D_
RS
T
VF
D_
DA
TA
VF
D_
CL
K
VF
D_
CS
VOL
_E
N
2
VOL
_E
N
1
KE
Y2
KE
Y1
HP
_M
U
TE
V
O
L_
L_
C
O
NT
KE
Y_IN
PU
T_IN
T
ST
_L
ED
_CO
N
T
HP
L-
OU
T
M
IC
_SI
GNA
L
HP
R-OU
T
+3.3VC
CH
GND
ST+5V
+3.3V_DC
HEAT_DET
+5V_DC/DC
HEA
T_
D
ET
C
U
RREN
T_
D
ET
VOLTAGE_SEL1
VOLTAGE_SEL2
CHGND
CHGND
CHGND CHGND
CHGND
CHGND
CHGND
CHGND
CHGND
CHGND
CHGND
CHGND
CHGND
CHGND
CHGND
CHGND
CHGND
CHGND
CHGND
CHGND
CHGND
CHGND
CHGND
CHGND
CHGND
CHGND
CHGND
CHGND
BT_FN1
BT_FN2
CHORUS_VBUSDRIVE
+3.3V_DC
+3.3V_DC
+3.3VC
CHGND
BT_FN3
BT
_AU
D
IO
_E
N
BT_STATUS
BT_STATUS_PAIR
COAX1
OPT1
+12V
+3.3V_DC
REMOTE_OUT
Z1_TRIGGER
ST+5V
+5
V
_D
C
/D
C
UART_RX
UART_TX
SHORT_PROTECT_IN
CHGND
DSP_MODE1
COAX1
OPT2
REC
_M
U
TE
SPK1
SPK2
ST_LED_CONT
POWERON_LED_CONT
U
SB_
C
U
RREN
T
CODEC_MUTE
NJW1194_LATCH
NJW1112_LATCH
FAN1_ON
2753_CNT1
2753_CNT2
PW_GND
AGND
CHGND
FAN2_ON
+3.3V_DC
VOLTAGE_SEL3
Harman Kardon
HK 3700 Service Manual
Page 100 of 109
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