SCH15 Input, Volume, Preout, Zone2
STBY POWER
ANALOG AUDIO
DIGITAL AUDIO
TMDS SIGNAL
GND LINE
POWER- LINE
POWER+ LINE
A-8V
A-
8V
A
G
N
D
TU
G
N
D
A
G
N
D
N
C
N
C
N
C
N
C
R
523
6
100
K
M
V
OL_
D
A
TA
R
523
1
22
K
M
V
OL_
M
U
TE
R
528
1
100
K
22
K
R
523
3
R
E
T_
G
N
D
SE
L_
C
LK
TU
_R
ST
TU
_S
C
LK
/D
AB
_T
X
TU
_I
N
T
TU
_S
DI
O
/D
AB
_R
X
M
/D
G
ND
.
LE
GO_
FL
LE
GO_
FR
A
D
_L
_
A
-8
V
N
C
A
G
N
D
Z2R
Z2L
FR
FL
SW2
M
U
TE
3.
3V
M
U
TE
3.
3V
A
+8
V
A+
8V
R
ET
_G
N
D
ZV
OL2_
M
U
TE
Z2_
M
U
TE
R
LY
+B
RL
+B
TU
G
N
D
R
LY
G
N
D
RL
G
N
D
M
VO
L_D
AT
A
M
VO
L_
M
U
TE
R
ET
G
N
D
SE
L_CL
K
TU
_R
ST
TU
_I
N
T
M
/D
G
N
D
LE
GO
_F
L
LE
GO
_F
R
AG
N
D
AG
N
D
AG
N
D
AG
N
D
AG
N
D
AG
N
D
AG
N
D
H
/P
_L
H
/P
_R
RL
Y_
FA
RL
Y_
H
/P
RL
Y_
H
IB
CURR
EN
T_D
E
T
CURR
EN
T_D
E
T
AG
N
D
A
G
N
D
H
/P
G
N
D
RL
Y_
FB
RL
Y_
FA
R
LY
+B
RL
+B
M
U
TEB
7V
M
U
TE
+
7V
M
/D
G
N
D
M
/D
G
N
D
TU
_S
C
LK/
D
AB
_T
X
DVD_R
DVD_L
PHONO_L
SEL_CLK
DVD_L
DVD_R
SAT_R
CD_R
BT_TX_R
TUNERR.
PHONO_R
ZONE2_R.
A+7V
A-7V
A+7V
AGND
R5335
470K
Z2L
MAIN_AD_L
A-7V
AGND
R5207
OPEN
MVOL_CLK
ZONE2_L
ZONE2_R
PRE_SW
AMP_FR
A+8V
A-8V
A+7V
A-7V
D5220
1N4148
DA_FR.
R5318
100K
TU_INT
TU_LA
TUGND
DAFR
AGND
AGND
FL
C5206
100N-K
VGND
C5208
100N-K
R5268
470
D5212
OPEN
R5241
470
R5228
470
D5208
OPEN
R5226
470
R5220
470
D5202
OPEN
D5201
OPEN
R
526
4
91
K
C
523
4
330
P
-J
-060
3
R
523
4
91
K
C
522
4
330
P
-J
R
522
5
91
K
R
522
1
91
K
C
521
9
330
P
-J
C
521
7
330
P
-J
-060
3
CD_R
R
526
1
O
PE
N
CD_L
R
523
5
O
PE
N
SAT_R
SAT_L
R
522
3
O
PE
N
R
522
2
O
PE
N
PHONO_R
R
535
0
O
PE
N
O
PE
N
R
535
1
SEL_DATA
SAT_L
CD_L
PHONO_L
TUNERL.
BT_TX_L
ZONE2_L.
A-7V
A-
8V
R5347
100
R5348
470K
C5347
10/50(5*11)
100
R5346
R5349
470K
10/50(5*11)
C5346
100
R5345
470K
R5327 R5322
100
Z2R
MAIN_AD_R
A+7V
100
K
R
522
9
R
523
0
22
K
A
G
N
D
A
G
N
D
M
V
OL_
C
LK
A
G
N
D
R
528
0
100
K
R5219
OPEN
OPEN
R5205
SE
L_
D
A
TA
D
AB
_E
N
(E
U
)
TU
_L
A
C5209
OPEN
R5218
OPEN
OPEN
C5204
RC
5
RC
5
MVOL_DATA
A-7V
AMP_FL
D5204
1N4007S
5
6
8
7
OPEN(NJM8080G)
U5200:B
0
R5206
LE
GO_
FR
LE
GO_
FL
A
D
_R
_
B
T_
TX
_L
B
T_
TX
_R
ZO
N
E
2_L
.
ZD
520
0
ZJ
3B
6
D5207
1N4148
ZO
N
E
2_
R
.
N
C
R5325
10K
10K
R5297
100
R5269
M
/D
G
N
D
R5316
470K
R5310
470K
R5289
470K
R5282
470K
R5267
470K
R5251
470K
A-
8V
Q5221
INC2002AC1
470
R5329
Q5216
INC2002AC1
22K
R5307
OPEN
R5294
R5298
470
OPEN
R5283
Q5209
OPEN
470
R5273
R5265
OPEN
R5270
470
R5248
OPEN
470
R5330
R5304
470
10K
R5308
10K
R5295
R5299
470
R5284
10K
10K
R5266
R5271
470
10K
R5249
22/50(5*11)
C5263
R5311
100K
C5251
22/50(5*11)
100K
R5285
C5240
22/50(5*11)
R5259
100K
C5238
22/50(5*11)
100K
R5255
C5228
22/50(5*11)
DA_SW.
DA_FL.
220
R5331
R5305
220
R5312
100K
220
R5300
R5275
220
100K
R5286
220
R5272
R5260
100K
R5245
220
100K
R5256
TU_RST
TU_5V
DASW
DAFL
A+8V
10N-K
C5255
10N-K
C5243
SW1
10N-K
C5232
FR
AGND
R
521
4
47
R5252
470
OPEN
D5209
D5211
OPEN
3
4
2
1
5
O
PE
N
L420
0
3
4
2
1
5
L420
1
O
PE
N
R
524
0
91
K
R
525
3
91
K
C
523
0
330
P
-J
C
522
5
330
P
-J
-060
3
R
525
4
O
PE
N
R
523
8
O
PE
N
P
R
E
_M
U
TE
A+
8V
PR
E_
M
U
TE
A
-8
V
R
E
T_
G
N
D
M
/D
G
N
D
R
ET
_G
N
D
M
/D
G
N
D
R5344
100
R5337
100
TU
_5
V
TU
_+
5V
TU
G
N
D
D
AG
N
D
D
AG
N
D
D
AG
N
D
D
AG
N
D
M
VO
L_CL
K
R
ET
G
N
D
SE
L_
D
AT
A
TU
_L
A
D5203
1N4007S
3
2
4
1
OPEN(NJM8080G)
U5200:A
0
R5208
AG
N
D
AD
_I
N
_L
AD
_I
N
_R
BT
_T
X_
L
ZO
N
E2_
L
BT
_T
X_
R
10
/50
(5
*11
)
C
520
1
10
/50
(5
*11
)
C
520
0
C
520
2
10
/50
(5
*11
)
H
/P
_G
N
D
H
/P
_G
N
D
ZO
N
E2_
R
C
520
3
10
/50
(5
*11
)
100
R5242
AMPSI
G
D
ET
RL
Y_
FB
A+
8V
A
+8
V
R5317
470K
R5314
1K
470K
R5290
R5288
1K
A
-8
V
H
/P
_R
22K
R5321
470
R5303
R5243
470
RL
Y_
H
IB
RL
Y_
H
/P
H
/P
_L
10K
R5320
R5244
470
470
R5274
R
LY
G
N
D
RL
G
N
D
AMPSI
G
D
ET
R5319
100K
R5291
100K
100K
R5292
D
AB
_E
N
(E
U)
/NC(N
A
/J
P
)
TU_
SD
IO
/D
AB
_R
X
AV_S-CNT
2/3
N
2
JK5203
M/DGND.
RC5
RC-5
AD_L_
AGND
A-8V
A+8V
Z2R
Z2L
MAIN_AD_R
DA_SW.
DA_FR.
MAIN_AD_L
R5200
100K
R5202
100K
100
R5258
C5221
470/16(8*11.5)-PKR3
470/16(8*11.5)-PKR3
C5218
R5224
OPEN(270_1W)
LEGO_AD_R
LEGO_AD_L
ZONE2_R
ZVOL2_MUTE
PRE_MUTE
PRE_SW
PRE_SW1
AGND
RLY_H/P
RLY_FB
RLY_FA
H/P_GND
HIB_RL
AMP_FL
R5213
0
R5212
0
TU_SCLK/DAB_TX
TUNERR.
C5235
OPEN
OPEN
C5226
AD_R_
C5223
OPEN
C5216
OPEN
C5220
OPEN
5
6
8
7
NJM8080G
U5213:B
3
2
4
1
U5213:A
NJM8080G
10/50(5*11)
C5345
DA_FL.
C
535
0
100
P
-J
100/16(5*11)-PKR3
C5342
C5343
100/16(5*11)-PKR3
R5201
100K
R5203
100K
100
R5257
1/100(5*11)_RFO
C5236
R5227
OPEN(270_1W)
AGND
AGND
LEGO BUFFER
RT1N141C
Q5222
ZONE2_L
AMP_FR
RT1N141C
Q5215
AGND
AMP_FL
PRE_SW
PRE_SW2
R
538
3
O
PE
N
MUTE3.3V
MUTEB7V
R5237
820
1N4148
D5205
D5206
1N4148
OPEN
R5239
RET_GND
H/P_L
H/P_R
CURRENT_DET
1 2 3 4
CN
520
1
4P
_50
MM
_2
M
M
C5250
22/50(5*11)
C5258
0.1/50(5*11)
INC2002AC1
Q5217
C5254
330P-J
Q5214
INC2002AC1
C5244
330P-J
C5247
22/50(5*11)
C5248
22/50(5*11)
C5246
0.1/50(5*11)
Q5213
OPEN
Q5210
INC2002AC1
330P-J
C5241
C5239
22/50(5*11)
Q5207
OPEN
Q5208
INC2002AC1
C5233
100P-J
22/50(5*11)
C5237
Q5205
OPEN
Q5206
INC2002AC1
C5231
100P-J
C5227
22/50(5*11)
AMP_FR
R5216
0
R5211
0
R5215
0
R5210
0
D5217
OPEN
D5216
OPEN
D5215
OPEN
D5214
OPEN
D5213
OPEN
OPEN
D5210
DAB_EN(EU)
TU_SDIO/DAB_RX
TUNERL.
C5229
OPEN
5
6
8
7
NJM8080G
U5204:B
3
2
4
1
U5204:A
NJM8080G
C5344
10/50(5*11)
C5267
10/50(5*11)
C5259
10/50(5*11)
AV_S-CNT
(S-CNT 3/3 B10)
32
31
30
29
28
27
26
25
24
9
8
7
6
5
4
3
2
1
23
22
21
20
19
18
17
16
15
14
13
12
11
10
NJU72343
U5202
AREF
ADR
IN_B2
IN_A2
IN_A1
IN_B1
IN_C
IN_D
IN_E
IN_F
IN_G1
IN_H1
IN_G2
IN_H2
MUTE
REF
V+
AREF
V-
AREF
O_A
O_B
O_C
O_D
O_E
O_F
O_G
O_H
AREF
VDD
CLK
DATA
Q5218
RT1P141C
RT1P141C
Q5219
Q5211
RT1P141C
Q5212
RT1P141C
Q5220
INC2002AC1
C5256
330P-J
C5249
22/50(5*11)
10
P
_50
MM
_2
M
M
CN
520
2
SPK_F-CNT
(SPK 1/3 B8)
CN5203
4P_280MM_2MM
2CH_AM
P
(1
/1
A5
)
JK5202
RCA-615A-07
JK5200
MVOL_MUTE
100/16(5*11)-PKR3
C5207
C
125
Z1-1
5
C
P
520
1
C
P
520
6
C
125
Z1-2
3
C5222
10/50(5*11)
100/16(5*11)-PKR3
C5205
100/16(5*11)-PKR3
C5211
SPK_F-CNT
(F-CNT 2/3 K9)
AV_S-CNT
(S-CNT 3/3 I10)
SPK_F-CNT
(SPK 1/3 B9)
32
31
30
29
28
27
26
25
24
9
8
7
6
5
4
3
2
1
23
22
21
20
19
18
17
16
15
14
13
12
11
10
V+
IN_A1
IN_A2
IN_B1
IN_B2
IN_A3
IN_B3
IN_A4
IN_B4
IN_A5
IN_B5
IN_A6
IN_B6
IN_A7
IN_B7
REF
V-
ADR1
ADR0
nc
O_A1
O_B1
REF_A
O_A2
O_B2
REF_B
O_A3
O_B3
nc
nc
CLK
DATA
U5201
NJU72750AV
C
125
Z2
-2
7
CN
520
0
AV BD (Input / Volume / Preout / Zone2)
AV_S-CNT 1/3
E4
CN5202
CN5201
CN5200
_CP5201
CP5206
CN5203
Before Servicing
This Unit
Electrical
Mechanical
Repair Information
Updating
23