Read Harman Kardon HK 3770 (serv.man8) Service Manual online
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
NETWORK_Power Control
3.3V
1.2V
Minimum 5ms
RESET
NET_PWR_SW1
NET_PWR_SW1_Delay
POWER TO MCU
2013.11.27
MULTI. LAB
ANAM
ISSUE
MP
PWGND
POWER_HI
AMP_VCC_ON
POWER_DOWN
ST+5V
D+7V
D+7V
ST+5V
-12V
AGND
+12V
VOL_SEL_3
PWGND
VOL_SEL_1
VOL_SEL_2
FROM SMPS
3.3V_DC
DC/DC (Milan +3.3V)
FB
VSS_C
VSS_P
SW
V_IN_2
V_IN_1
V_IN_C
EN
2A 3.3V
DC/DC Regulator 2A
(DC_DC_POWER)
27
5
X7R Series
X7R Series
BS
VIN
SW
GND
FB
VCC
EN
SS
FROM SMPS
TO DSP
X7R Series
X7R Series
BS
VIN
SW
GND
FB
VCC
EN
SS
FROM SMPS
(+5.18V)
* Near to CN76
USB/IPOD POWER PART
(Under +2.35V)
: PWR_SW2 =>LOW
: PWR_SW2 =>LOW
Left Screw Hole
12.11.02
DSP POWER PART
HK3700 /3770
2013.08.07
2013.11.27 2013.11.27 2013.11.27
C.D.W
S.K.S
K.J.K
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 3770 Service Manual
Page 112 of 120
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