SCH03 PWM
GND LINE
POWER- LINE
POWER+ LINE
ANALOG AUDIO
DIGITAL AUDIO
STBY POWER
R_CH
L_CH
SW
(ANALOG IN )
( SW OUT )
HP_R
HP_L
AGND
( H/P Out )
AGND
HP_DET
PWM_L+
PWM_L-
PWM_R+
PWM_R-
5142_SD
VALID
OTW
DGND
SP_PROTECT
+12V_5142
AMP_VCC
DGND
EM
I
CM
PWM_HPM_L
THE
RM
AL
P
AD
PWM_HPP_L
PWM_HPM_R
PWM_HPP_R
AVSS
PLL_FLTM
PLL_FLTP
VR_ANA
AVDD
ASEL_EMO2
MCLK
OSCRES
DVSS2_CORE
DVDD2_CORE
EM01
RESET
HP_SEL
PDN
MUTE
SDA
SCL
LRCK
SCLK
SDIN1
SDIN2
SDIN3
SDIN4
VR_DIG
PWM_P_8
PWM_M_8
VR_PWM
AVSS_PWM
AVDD_PWM
PWM_P_2
PWM_M_2
PWM_P_1
PWM_M_1
VALID
DVSS1_CORE
DVDD1_CORE
BKND_ERR
PSVC/MCLK
TEST
LRCKO
SCLKO
SDOUT
EMI CM
EM
I
CM
V+
V-
R
L
V+
V-
(NC)
(NC)
(NC)
(NC)
(NC)
(NC)
(NC)
(NC)
(NC)
(NC)
(NC)
R+
R+
R-
R-
DGND
DGND
L+
L+
L-
DGND
DGND
L-
R-CH
L-CH
D-AMP PCB
EMI CM
HP_MUTE
SW_MUTE
+12V
-12V
+12V
-12V
FROM MCU PIN71
(PAGE 2_C4)
FROM MCU PIN58
(PAGE 2_C4)
FROM MCU PIN19
(PAGE 2_B4)
FROM MCU PIN92
(PAGE 2_D4)
(PAGE 2_B1)
(PAGE 2_C3)
FROM MCU PIN67
(PAGE 2_C3)
FROM MCU PIN70
TO MCU PIN135
(PAGE 2_C5)
FROM IC22(DIR1)
(PAGE 3_D3)
(PAGE 2_D5)
FROM MCU
(PAGE 2_C3)
TO IC478
(PAGE 3_B5)
FROM MCU
(PAGE 2_B4)
Caps(4ea) must be placed close to the TR buffer of each channel.
(P
AG
E
2_
B5
)
(P
AG
E
2_
D2
)
HP_DET
H/P_L
AGND
H/P_R
AGND
HeadPhone
CUP12955Z-3
EMI CM
EL
NA
L209
120
C23
7
100
P
R47
7
47
K
C33
8
0.
1
R316
15K
R313
15K
R31
4
15
K
R31
5
15
K
C24
2
100
P
C24
3
100
P
1
2
3
4
5
6
JK22
CJJ4S058Z
Q215
KTC2875B
R294
10K
R47
9
4.
7K
R406
1K
R407
1K
Q216
KTC2875B
R295
10K
R42
2
47
K
R42
1
47
K
C23
1
100
P
C23
2
100
P
Q213
KTC2875B
Q214
KTC2875B
Q211
KT
C2875
B
Q212
KT
C2875
B
R401
0.25W/10
R292
4.7K
R293
4.7K
R403
0.25W/33
R404
0.25W/33
R291
4.7K
R290
4.7K
R402
0.25W/10
C39
8
6.
3V
/100
uF
C28
0
0.
1
C273
0.1
R441
33
R440
33
R439
33
R29
9
10
K
R30
2
10
K
R30
0
10
K
R42
8
47
R42
7
47
R30
1
10
K
R332
4.7K
C27
5
0.
1
C27
6
0.
1
C27
8
0.
1
C27
7
0.
1
C27
9
0.
1
R333
4.7K
R285
1K
R35
5
0
R320
1
C25
5
0.
01
C34
1
0.
1
R303
10K
R304
10K
12
11
10
9
8
7
6
5
3
4
1
2
PF
72
CJ
P12
G
A
412
ZD
E
C31
0
1000
P
C32
1
0.
01
C34
3
0.
1
C35
4
0.
1
C35
5
0.
1
Q203
RT1P141C
Q208
RT1P141C
C407
6.3V/220uF
C406
0.01
R32
1
3.
3
C44
0
O
PE
N
C44
1
O
PE
N
55
28
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
56
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
IC40
CVITAS5558DCAR
C26
6
0.
047
uF
R42
3
47
0
C29
4
4700
P
R42
4
47
0
C29
3
4700
P
C29
5
0.
047
uF
C27
4
0.
1
R430
47
R462
18K/F
C410
18P
C32
2
0.
01
C40
0
6.
3V
/220
uF
R231
15K
R446
33
C43
0
4.
7u
F
C33
9
0.
1
R431
47
R426
47
R425
47
C411
18P
R22
2
100
K
R22
3
100
K
R22
1
100
K
C37
3
16
V/
10
uF
C412
18P
C413
18P
C340
0.1
R429
47
C393
6.3V/220uF
C324
4.7uF
C31
1
1000
P
C32
3
0.
01
C34
2
0.
1
C372
0.1
R361
0
R360
0
8
7
6
5
4
3
2
1
IC42
CVINJM8068G
C383
16V/47uF
C37
1
0.
1
C37
0
0.
1
C257
0.01
R475
47K
R409
1K
C29
2
4700
P
R284
1K
R448
22K
R447
22K
R47
4
47
K
C25
6
0.
01
R359
0
R358
0
C391
16V/220uF
C336
0.1
R545
1K
R417
1.5K
R419
1.5K
R420
1.5K
R418
1.5K
C27
1
50
V/
1000
pF
R43
3
18
K
C23
5
50
V/
150
pF
C382
16V/220uF
C337
0.1
8
7
6
5
4
3
2
1
IC41
CVIOPA1678IDR
C234
OPEN
R436
OPEN
C233
OPEN
R435
OPEN
R43
4
18
K
C23
6
50
V/
150
pF
C29
0
50
V/
680
pF
R416
2.2K
R414
2.2K
C28
7
50
V/
1000
pF
R480
1.2K
C28
9
50
V/
680
pF
R413
2.2K
R415
2.2K
L218
60
L217
60
R235
18
C467
25V/100uF
RFO
R523
0.25W/33
C468
25V/100uF
RFO
R524
0.25W/33
R53
1
18
K
R52
2
18
K
R52
9
4.
7
R52
8
0.
25
W
/1
0
R52
7
4.
7
R52
5
3.
3K
R53
0
3.
3K
R52
6
0.
25
W
/1
0
D
24
0
1SS
35
5
D
24
1
1SS
35
5
Q237
KTC3203Y
Q236
KTA1271Y
R51
9
4.
7
R52
0
0.
25
W
/1
0
R51
7
4.
7
R51
6
3.
3K
R52
1
3.
3K
R51
8
0.
25
W
/1
0
D
23
8
1SS
35
5
D
23
9
1SS
35
5
3
1
2
Q235
KTC3203Y
Q234
KTA1271Y
ET20
JW
20
CD
F1
A
03
5
JW
21
CD
F1
A
03
5
C269
1000P
C267
0.01
C348
0.1
C302
1000P
C288
0.01
C349
0.1
C303
1000P
C315
0.01
C350
0.1
C304
1000P
C316
0.01
C351
0.1
ET21
6
5
3
4
1
2
PF71
CJP06GA412ZDE
C25
3
O
PE
N
C25
4
O
PE
N
6
5
3
4
1
2
PF70
CJP06GA412ZDE
C22
4
O
PE
N
C29
6
O
PE
N
2
1
JK21
CJJ5N035ZD
2
1
JK20
CJJ5N034ZD
R48
6
5.
6/
F
C40
8
0.
01
uF
/100
V
R48
9
5.
6/
F
C45
1
0.
01
uF
/100
V
R48
8
5.
6/
F
C45
0
0.
01
uF
/100
V
R48
7
5.
6/
F
C40
9
0.
01
uF
/100
V
R31
9
150
K
C37
4
50
V/
2.
2u
F
R31
8
150
K
C38
7
50
V/
2.
2u
F
Q220
RT1P141C
Q219
RT1P141C
D203
1SS355T
C38
1
16
V/
100
uF
R31
7
100
K
D206
1SS355T
D207
1SS355T
L208
60
L207
60
D219
1SS355T
Q200
RT1P141C
Q201
RT1P141C
Q204
RT1N141C
Q205
RT1N141C
D204
1SS355T
D205
1SS355T
Q232
RT1P141C
Q231
RT1N141C
C20
6
0.
01
R485
10K
R26
2
10
K
R24
9
10
K
C42
1
50
V/
150
pF
C42
2
50
V/
150
pF
C438
16V/220uF
C439
16V/220uF
R238
18
C44
2
16
V/
10
uF
C44
3
16
V/
4.
7u
F
R23
9
IN
GND
EN
PG
NC
OUT
5
3
2
4
6
1
IC43
CVILP5912_3.3DRVR
L223
60ohm
L222
60ohm
C28
1
O
PE
N
C31
2
O
PE
N
C31
3
0.
02
7
C32
7
0.
02
7
C250
0.01
C251
0.1
C252
0.1
C259
0.1
D217
CVD1SS355T
D218
CVD1SS355T
L202
60ohm
2
3
4
5
7
6
1
JK11
CJJ2D051ZD
C32
9
0.
01
G
S
D
Q238
MTA50P01SN3
R53
3
2.
2K
1
2
3
Q239
2N3904S
G
S
D
Q240
MTN2302N30T1G
R53
4
2.
2K
1
2
3
Q241
CVTKTA1298
R535
2.2K
R536
47K
R53
7
100
K
R53
8
3.
3K
R53
9
3.
3K
R54
0
3.
3K
R54
1
3.
3K
R411
1.2K
R410
1.2K
R412
1.2K
R544
1K
R542
1K
R543
1K
C22
9
50
V/
680
pF
C23
0
50
V/
680
pF
5
4
3
2
1
CN10
CJP05GI236ZW
5
4
3
2
1
BN10
R56
6
2
3
1
Q206
KRC107S
2
3
1
Q207
KRC107S
AGND
+3.3V_5558
+3.3V_5558
DGND
DGND
DGND
DGND
DGND
AGND
AGND
AGND
AGND
SP_PROT
D
IR
1M
_M
LC
KO
HP_ON
A_58_RST
A
_5
8_
PD
N
A
_5
8_
M
U
TE
A
_5
8_
SD
A
A
_5
8_
SC
L
D
IR
1M
_L
RC
KO
D
IR
1M
_S
CL
KO
D
IR
1M
_S
D
A
TA
O
A
_S
D
A
_O
TW
+12VA
AGND
DGND
D
GN
D
+12V
-12V
+12VD
-12VD
DGND
RESET
DGND
SW_MUTE
HP_MUTE
+5VS
AUX_L
AUX_R
+12VD
DGND
DGND
-12VD
-12VD
+29V
HP_DET
+3.3V_CPU
DGND
DGND
+5VA
SU
B_
PW
R_
CO
N
T
DGND
DGND
AGND_4
CHGND_4
AGND_4
+12V
-12V
HP12V_SW
DGND
DGND
DGND
2A
4A
5A
6A
BN10
CN10
PF72
PF71
PF70
Before Servicing
This Unit
Electrical
Mechanical
Repair Information
Updating
11