Harman Kardon HK 3700 Service Manual ▷ View online
HK3770, HK3700
(WIRING)
1
B
1
2
3
4
5
D
C
B
A
6
C
D
A
APPROVE
CHECK
DESIGN
DRAWING NO
1 1
MODEL
SHEET
1
SCHEMATIC DIAGRAM
REVISION
1
2
3
4
5
6
7
MP
HEAT SINK ASS'Y
VFD
1
23
WF70
1.25mm pitch
DIGITAL B'D
IR B'D
MAIN B'd
FRONT B'D
7
1
2.0mm pitch
BN71
AC IN
WIRING DIAGRAM
2.5mm pitch
BN73
STBY_LED B'd
H/P + USB B'd
5
1
2.0mm Pitch
BN78
2.5mm pitch
CN73(Dual)
5
1
2.0mm Pitch
BN72
VOLUME B'd
BN10
23
1
31
1
23
WF1400
1.25mm pitch
1
2
3.96mm Pitch
CN90
71
15
1
15
1
SMPS B'd
1
3
CN66
BN60
3.96mm Pitch
CN20
3.96mm Pitch
1.25mm Pitch
2.0mm Pitch
CN1201
2.0mm Pitch
BN65
WF1502
23
1
1.25mm Pitch
TUNER
6
1
CN1100
F-USB
REAR PANEL
2.0mm Pitch
CN72
(Dual)
31
CN1400
HEAT-DET
31
CN10-1
TEMP
12502WCWZ
C.D.S
2.0mm pitch
1
11
WF1403
1.25mm pitch
1
11
CN60
1.25mm pitch
71
BN76
2.0mm pitch
51
CN78
2.0mm pitch
5
1
120V : FIXED TYPE
230V : IEC Removable
POWER CORD TYPE
CN1511
2mm pitch
BN50
1
15
BLUETOOTH
ONLY FOR HK3770
ONLY FOR HK3770
1
15
WF1500
1.0mm pitch
CN1101
FAN
1
2
TUNER B'D
HEAT-DET
13
2mm pitch
1
9
2mm pitch
1
2mm pitch
9
1
13
1
IR B'D <--> DIGITAL B'D
DIGITAL B'D <-->USB B'D
DIGITAL B'D <-->USB B'D
USB B'D <--> FRONT B'D
FRONT B'D <--> SMPS B'D
SMPS B'D <--> DIGITAL B'D
SMPS B'D <--> DIGITAL B'D
HEAT B'D <--> DIGITAL B'D
HEAT B'D <--> DIGITAL B'D
SMPS B'D <--> MAIN B'D
SMPS B'D <--> MAIN B'D
FAN WIRE
MAIN B'D <--> DIGITAL B'D
MAIN B'D <--> DIGITAL B'D
MAIN B'D <--> DIGITAL B'D
MAIN B'D <--> DIGITAL B'D
DIGITAL B'D <--> FRONT B'D
DIGITAL B'D <--> FRONT B'D
DIGITAL B'D <--> BLUETOOTH B'D
DIGITAL B'D <--> BLUETOOTH B'D
FRONT B'D <--> VOL B'D
MAIN B'D <--> TUNER B'D
MAIN B'D <--> TUNER B'D
BN20
CN20
3
1
31
CN30
BN30
2.0mm pitch
BN1400
Harman Kardon
HK 3700 Service Manual
Page 97 of 109
7
6
5
4
3
2
1
REVISION
SCHEMATIC DIAGRAM
SHEET
MODEL
DRAWING NO
DESIGN
CHECK
APPROVE
A
D
C
6
A
B
C
D
5
4
3
2
1
B
3
6
L1203
CLZ9Z014Z
L1204
CLZ9Z014Z
L1205
CLZ9Z014Z
C1213
0.01uF
C1208
0.
1u
F
L1201
10UH/3A
10UH/3A
C1202
0.
1u
F
C1201
220/6.3V
C1206
0.
1u
F
C1205
100/16V
C1204
0.
1u
F
C1203
100/16V
L1206
CLZ9Z014Z
L1207
CLZ9Z014Z
L1208
CLZ9Z014Z
C1214
0.01uF
T1400
T1401
T4
T5
L1217
CLZ9Z014Z
IN
OU
T
GND
3
2
1
IC1206 CVIAZ1117CH-1.2TRG1
C1451
16V
/10u
F
C1450
0.
1u
F
C1248
0.
1u
F
C1249
47/6.3V
1
2
3
4
567
8
IC1205
CVIEML3418-00SE08GRR
C1247
10V
/22u
F
R1238
10K
R1237
10K
L1216
1.5uH/2.3A
C1246
3216 10u
F/
25V
R
1239
47K
R1209
0
R1210
0
R1211
0
R1212
0
1
2
34
56
7
9
8
101
1
12
131
4
15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
CN
1201
CJ
P15GB276Z
Y
L1215
CLZ9Z014Z
R1205
0
R1206
0
R1207
0
R1208
0
R1213
0
R1214
0
R1215
0
R1216
0
R1217
0
R1218
0
C1222
10V
/22u
F
1
2
3
4
5678
IC1202
DB1230HE
R1223
10K
R1224
15K
C1221
0.
01u
F
L1219
3.3u
H
3.2A
4040
C1216
10V/22uF
C
1220
1500P
C1218
10V/2.2uF
C1219 0.01uF
R
1225
47K
C1215
0.1uF
C1217
0.1uF
R1226
0
L1202
CL
Z9
Z014Z
1
2
3
GND
OU
T
IN
IC1201
CVIAZ1117CH-5.0TRG1
C1209
10V
/22u
F
C1210
0.
1u
F
C1212
0.
1u
F
C1211
47/6.3V
1
2
3
4
5678
IC1204
DB1230HE
R1231
10K
R1232
10K
C1235
0.
01u
F
L1220
3.3u
H
3.2A
4040
C1228
10V/22uF
C
1232
1500P
C1230
10V/2.2uF
C1231 0.01uF
R
1233
27K 1%
C1227
0.1uF
C1229
0.1uF
R1234
0
C1233
10V
/22u
F
R
1235
OPE
N
R
1236
0.1u
F
C1234
10V
/22u
F(
N.C
)
T14
R1201
0
T16
R1219
OPEN
R1220
OPEN
R1221
OPEN
R1222
0
R1202
OPEN
R1203
OPEN
R1204
OPEN
C1207
470/16V
R1299
0
R1251
0
R1254
0
R1255
0
R1258
0
R1259
0
R1260
0
R1261
0
R1262
0
R1263
0
R1264
0
R1265
0
R1266
0
F1301
CR
TM
IN
IS
M
D
C200F
C1272
OPE
N
T2
R
1288
27K 1%
PWR_SW1
PWR_SW2
PWR_SW2
NET_PWR_SW
PWR_SW1
PWR_SW2
NET_PWR_SW
PWR_SW2
NET_PWR_SW
POWER_HIGH
POWER_DOWN
POWER_HIGH
POWER_DOWN
POWER_DOWN
DSP_PWR_SW
DSP_PWR_SW
ST+5V
+7VD
POWER_HIGH
POWER_DOWN
ST+5V
AMP_VCC_CONT
-12V
+12V
CHGND
CHGND
CHGND
NET_1.2V
VOLTAGE_SEL1
VOLTAGE_SEL2
NET_3.3V
NET_PWR_SW
PW_GND
+7VD
PW_GND
PWR_SW1
+3.3V_DC
+5V_DC/DC
+7VD
PWR_SW2
USB+5V
USB_CURRENT
PW_GND
HGND
HGND
CHGND
AGND
AGND
AGND
PW_GND
PW_GND
PW_GND
CHGND
PW_GND
PW_GND
PW_GND
PW_GND
PW_GND
PW_GND
PW_GND
PW_GND
VOLTAGE_SEL3
Harman Kardon
HK 3700 Service Manual
Page 98 of 109
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
Click on the first or last page to see other HK 3700 service manuals if exist.