176
SC-57
1
2
3
4
A
B
C
D
E
F
1
2
3
4
11. PCB CONNECTION DIAGRAM
11.1 AUDIO ASSY
A
AWX983
AWX983
AWX979
1.
V-12_A
V+12_A V+12_A GND
AD
GND
AD
GND
A
GND
A
1.ZL OUT
ZR OUT
S
BL OUT
S
BL OUT
FHL/FWL
S
R OUT
C OUT
FL OUT
FR OUT
FL IN
FR IN
GND
AD
S
GND
AD
S
GNDD
A
S
GNDD
A
S
GNDD
A
S
GNDD
A
S
GNDD
A
S
GNDD
A
S
GNDD
A
S
GNDD
A
S
GNDD
A
S
GNDD
A
S
GNDD
1.BTR
BTL
GND
A
S
BL OUT
S
BR OUT
FH/FWL OUT
FR OUT
S
L OUT
S
R OUT
GND
A
GND
A
GND
A
GND
A
GND
A
GND
A
GND
A
GND
A
V+7_A
V-7_A
PRE
S
EL7
/AMUTE
/S
BMUTE
CD
R
L
SW2
LS
SBR
FHL
FWR
FWL
V-12_A
OUT
FHR/FWR
OUT
S
L OUT
S
W OUT
GND
AD
S
GND
AD
S
FH/FWR OUT
FL OUT
GND
A
C OUT GND
A
FHR
SBL
RS
SW1
C
R
3224
C26
R2861
R
3225
C
3059
C2696
R2
862
R
3226
R
C3251
8
16
IC3221
C3252
C3253
C3254
C
3060
Q3251
Q
3252
C
3257
C
325
8
C
3259
C
3260
R2681
C3265
C3266
D2691
R6701
R6702
R
305
3
R670
3
R
3054
R6704
R2691
C3271
R6705
R2692
C3272
R6706
C3273
R
3057
C3274
R
305
8
Q3271
Q
3272
C
3277
C
327
8
Q
3274
R
3251
C
3279
Q3275
R
3252
Q
3276
C
32
80
IC3251
R6717
R671
8
C3285
R6719
C3286
R
3261
R
3262
R
3265
R
3266
R672
3
R6724
R6725
R
3271
R
3272
R6732
R67
33
R3084
R3085
IC
3271
R3086
R67
36
IC
3272
R3087
R67
37
R
30
88
R6738
R
30
89
R
32
81
R
32
82
R3090
R
32
85
R6742
R
32
86
R674
3
R6744
R6745
C2700
C2701
C2702
C2703
R
329
3
R6750
C2704
C2705
C2706
C2709
C2710
C2711
C2712
Q2721
D2701
Q2722
D2702
R2701
R2702
R270
3
R2704
R2705
R2706
R2707
R2708
14
7
IC2701
R2709
IC2702
R2710
R2711
R2712
C3101
C3102
C
310
3
C3104
Q
3101
Q
3102
C
3107
C
310
8
C
3109
R2721
C
3110
C3115
C3116
C2759
C2761
C2762
C2763
C2764
R3101
R3102
R2740
IC3101
R
3111
R
3112
R
3115
R
3116
IC2751
R2759
R2760 R2761
R276
3
C3151
C
315
3
C
3154
Q
3151
Q
3152
C
3157
C
315
8
C3928
C
3159
C3929
C
3160
C3931
C3933
C3934
C3165
C
39
35
C3166
C
39
36
C
39
37
C
39
38
C3939
C
3940
C
3941
C
3942
C
394
3
R3151
C3949
C
3951
IC3151
C
3957
C
3959
R
3161
R
3162
R
3165
R
3166
C
R3951
R
3952
R3953
R3954
R3955
R3956
R3957
R3958
R3991
R3992
C
3201
C3202
C3203
C3204
Q
3201
Q
3202
C
3207
C
320
8
C
3209
C
3210
C3215
C3216
C3221
C
3222
C3223
C
3224
C2
861
R
3201
R3202
IC
3201
R
301
8
R
3019
R
3211
R
3212
R3020
R
3215
R
3216
C
3055
C
3056
R
322
3
C2694
C3255
C3256
C3275
C3276
CN2501
CN2502
CN2510
C2707
C2708
JA2503
JA2505
C2731
C2732
C3105
C3106
C2751
C2752
C2753
C2754
C2755
C2756
C2757
C2758
C2760
JA3101
JA3102
C3155
C3926
C3927
C
3952
C3953
C3954
C2605
C2606
C2609
C2610
CN3001
C3205
C3206
C
3217
C
321
8
C2663
C2669
JA3201
JA3202
C2680
CN
3051
CN3052
C
305
3
C
3054
C26
15
10
15
5
1
5
1
1
5
1
5
1
5
1
5
1
5
1
1
5
1
5
1
5
E
1
E
1
1
5
10
1
5
5
1
5
1
1
5
1
5
5
1
5
1
1
5
5
1
5
1
1
5
1
1
20
25
15
5
1
10
15
10
15
1 1 1
1
5
1
1
5
10
1
1
5
10
1 1
20
10
1
5
15
1
5
15
10
CN6952
CN3051
CN7671
CN2510
CN3785
CN2501
CN3794
CN2502
CN3792
CN3001
AG
AC
AA
AA
AB
IC2701
Q2721
Q2722
Q2853
Q2852
Q2803
Q2801
Q2851
Q2802
Q3001
Q3002
Q3901
Q3276
Q3275
Q3271
Q3272
Q3251
Q3252
Q3201
Q3202
Q3274
Q3151
Q3152
Q3101
Q3102
Q2971
Q2951
IC2702
IC2801
IC3251
IC2751
IC3221
IC3272
IC3271
IC3201
IC3151
IC3101
IC2661
Q
IC
SIDE A
A
AUDIO ASSY
Z