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9
2.5.
MAIN CIRCUIT (2/4) (For SC-HC55P/PC-K)
With reference to original service manual (section 15.5.) on page 118 for Model No. SC-HC55P/PC-K
B
B
2/4
4/4
1/4
3/4
MAIN CIRCUIT
SCHEMATIC DIAGRAM - 4
SC-HC55P/PC MAIN
CIRCUIT
TO MAIN
CIRCUIT (1/4)
CIRCUIT (1/4)
TO MAIN
CIRCUIT (4/4)
CIRCUIT (4/4)
P1
9
1
TO
TUNER CIRCUIT
(CN51)
IN SCHEMATIC
DIAGRAM - 10
TUNER CIRCUIT
(CN51)
IN SCHEMATIC
DIAGRAM - 10
TO LEFT SPEAKER
TO RIGHT SPEAKER
: CD AUDIO INPUT SIGNAL LINE
: AUDIO OUTPUT SIGNAL LINE
: iPod/iPhone SIGNAL LINE
: +B SIGNAL LINE
:TUNER/BLUETOOTH/AUX/MIC AUDIO INPUT SIGNAL LINE
15
16
17
18
19
20
21
22
23
24
25
26
27
28
A
C
D
B
E
G
H
F
R129
R128
L954
J0JBC0000014
C129
C131
1
C132
1
R126
R127
C134
C950
MUTING
MUTING
MUTING CONTROL
C993
L956
J0JBC0000014
R959
R955
C133
C135
C136
C137
C130
1
2
CN102
RCH-
C141
CL950
SPKL+
1
2
CN106
L103
G1C150M00023
G1C150M00023
C138
L104
C952
R958
VCC18V
R963
L102
G1C150M00023
C128
C127
C956
LCH+
C139
C162
CK10
R140
CK11
C161
C143
L105
G1C150M00023
RCH+
LCH+
C140
Q952
Q952
B1GFGCAA0001
R969
R968
R957
R960
C951
L955
J0JBC0000014
3
2
5
4
1
6
3
2
5
4
1
6
Q951
Q951
B1GFGCAA0001
+3.3V REGULATOR
C0DBGYY00887
R971
HP_MUTE
R970
R972
R966
R967
B1ADCE000012
Q950
Q950
6
2
3
4
5
1
7
JK952
HEADPHONE
VCC18V
18V_GND
R122
B1GBCFJN0038
QR100
MUTING
MUTEA
AGND
D_AMP_RESET
R138
D3R3V
C123
0
K107
CLK_MCLK
C122
R134
R119
R133
R131
R132
APD
C121
R137
PDET2
CLK_BCLK_D-AMP
CLK_LRCK_D-AMP
SDATA_D-AMP
C124
SDA
CLK_SCL
SPKR+
4
5
T1
45
46
44
48 47
2
1
3
32
34
36
35
33
42
40
41
43
37
39 38
8
16 17
15
13 14
9
6
7
27
25
22 23
20
19
21
24
26
18
30
31
28
29
Thermal
Pad
11
12
10
C1AB00003600
IC103
C125
C126
270
R973
390
R974
390
4.7
6.8
470
0.22
390
390
270
6.8
2200P
CHASSIS GND
25V220
1
LCH+
0.1
390
1.5K
1
0.22
6.8
2200P
0.01
RCH+
0
0
2200P
2200P
6.8
LCH -
RCH -
LCH +
0.1
0.1
0.1
0.1
0.22
RCH +
NC
TEST3
[13]MONI1
MONI1
ERROR
1.5K
PLL
DVDD
VSS
1
1
TEST2
REG15
NC
220
LRCLK
MUTEX
SCL
SDA
4.7K
220
[1]ADD
SDATA
RSTX
MCLK
33
TEST1
BCLK
DGND
220
BSP2P
[26]GND
[25]GND
OUT2P
VCCP2
OUT2P
BSP2N
OUT2N
OUT2N
1
NC
REG_G
10
10
270
270
1000P
NC
VCCP2
ASP
ST_MONO
NC
NC
[38]OUT1P
[37]BSP1P
[37]BSP1P
1
25V220
VCCP1
VCCP1
OUT1P GNDP1
1
GNDP1
OUT1N
BSP1N
OUT1N
1K
1K
390
47K
0.027
0
2700P
CLK_TU_SCL
TU_SDA
TU_INT
TU_RST
C351
1
1
C352
3
2
6
7
4
5
1
9
8
CN350
D5V
C707
L350
L701
0
0
10
3
2
4
1
IC702
C708
GND
10
CE
VIN
OUT
VSS
3.3V
INT
RST
SCLK
SDIO
GND
R OUT
L OUT
C954
1
5
4
3
2
6
7
MPORTR
C953
R952
C960
R951
L951
J0JBC0000019
L952
J0JBC0000019
L953
J0JHC0000118
R954
L950
J0JBC0000019
MPORTL
C959
MPORT_SW
18V_GND
AGND
C958
JK951
AUX
(EXT-IN)
4700P
4700P
1
1
0
R953
0
12K
12K
1000P
P1
TUNER_GND
TU_L
TU_R
K110
0
C955
CHASSIS_GND
C961
1000P
1000P
CK12
C158
C159
1000P
1000P
C157
1000P
C160
1000P
C957
1000P
R150
0
R151
0
R152
0
R153
0
D1
D3
B0JCME000035
B0JCME000035
B0JCME000035
B0JCME000035
D4
D2
(D1,D2,D3,D4)
ADD
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