From Smps; Dsp Power Part; Network_Power Control; Usb/Ipod Power Part - Harman Kardon HK 3700 Service Manual

6
Harman Kardon

FROM SMPS

POWER_DOWN 15
POWER_DOWN
AMP_VCC_ON
14 AMP_VCC_CONT ST+5V
D POWER_HI 13 POWER_HIGH
ST+5V
12
+12V
ST+5V 11
+12V 10
-12V
AGND
9
AGND
-12V 8
CHGND CHGND
D+7V 7
+7VD
D+7V 6
CHGND
L1201
PWGND
5
10UH/3A
PWGND 4
PW_GND
VOL_SEL_3 3
VOLTAGE_SEL3
VOL_SEL_2 2
VOLTAGE_SEL2
PW_GND
VOL_SEL_1 1
VOLTAGE_SEL1 CVIAZ1117CH-5.0TRG1
2013.08.07
Left Screw Hole
R1201 0
T14
R1202 OPEN
R1203 OPEN
R1204
OPEN
HGND PW_GND
C

DSP POWER PART

C1215 0.1uF X7R Series
C1216
10V/22uF X7R Series
C1217 0.1uF DB1230HE
R1223 10K
EN
PWR_SW1
FB
10V/2.2uF C1218
VCC
R1224 15K
C1219 0.01uF
SS
PW_GND
B
A
5
L1203
CLZ9Z014Z
L1204
CLZ9Z014Z
L1205
R1205
0
CLZ9Z014Z
R1206 0
C1213
R1207 0
0.01uF
R1208 0
R1299 0 L1206
R1260 0
CLZ9Z014Z
R1261 0
R1262 0
L1207
CLZ9Z014Z
R1209
PW_GND
R1210
0 L1208
R1211
0 CLZ9Z014Z
R1212
0
C1214
R1251
0 0
R1254 0 0.01uF
R1255 0
R1213 0
R1214 0
R1215 0
R1258
0 R1216
0
R1259
0
R1217 0
R1218 0
IC1201
CHGND AGND R1263 0
R1264 0
R1265
0
R1266 0
3 2 1
+5V_DC/DC PW_GND
CHGND
R1219 OPEN
T16
R1220 OPEN
R1221 OPEN
R1222 0
HGND
AGND
+7VD FROM SMPS
IC1202
VIN
R1226
BS
0
SW
TO DSP
GND
+3.3V_DC
PW_GND
PW_GND
4 3

NETWORK_Power Control

DC/DC (Milan +3.3V)
DC/DC Regulator 2A
NET_PWR_SW
ST+5V
CVIEML3418-00SE08GRR
L1215 R1237 NET_3.3V
EN FB
CLZ9Z014Z 10K
IC1205
PW_GND
R1238
V_IN_C VSS_C
10K
V_IN_1 VSS_P
L1216
V_IN_2 SW
1.5uH/2.3A
PW_GND
PW_GND
IC1206 CVIAZ1117CH-1.2TRG1
1 2 3
L1217
NET_1.2V CLZ9Z014Z
1.2V
NET_PWR_SW1_Delay
3.3V
NET_PWR_SW1
RESET
Minimum 5ms
2
C1227
C1228
C1229
R1231
PWR_SW2
C1230
10V/2.2uF
R1232
C1231 0.01uF
2A 3.3V
PW_GND
3.3V_DC

USB/IPOD POWER PART

POWER TO MCU
PWR_SW1
PWR_SW2
NET_PWR_SW
DSP_PWR_SW
POWER_HIGH
POWER_DOWN
1
MP
MODEL
ISSUE
ANAM
MULTI. LAB
2013.11.27
2013.11.27 2013.11.27 2013.11.27
1
HK 3770 Service Manual
+7VD
FROM SMPS
12.11.02
0.1uF X7R Series
10V/22uF X7R Series
IC1204
0.1uF DB1230HE
10K
EN VIN
R1234
FB BS
0
VCC SW (Under +2.35V)
USB_CURRENT
10K
: PWR_SW2 =>LOW
SS GND
PW_GND
USB+5V (+5.18V)
* Near to CN76
PW_GND
PWR_SW1
PWR_SW2
NET_PWR_SW
DSP_PWR_SW
POWER_HIGH
POWER_DOWN
REVISION 2 4 6
3 5 7
SCHEMATIC DIAGRAM
SHEET
5
HK3700 /3770
DESIGN CHECK APPROVE DRAWING NO
C.D.W S.K.S K.J.K
Page 112 of 120
(DC_DC_POWER)
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C
B
A
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