Schematic Diagram; Audio Assy (1/3)(Guide Page) - Pioneer SC-37 Service Manual

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10. SCHEMATIC DIAGRAM

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10.1 AUDIO ASSY (1/3)(GUIDE PAGE)

A
Note: When ordering service parts, be sure to refer to " EXPLODED VIEWS AND PARTS LIST" or
"ELECTRICAL PARTS LIST".
Large size
SCH diagram
A-a A-b
SELMID
(B-5)
R3007
R3008
R2697
R2699
R2670
R2740
SELMID
(C-1,G-1,H-1)
(I-1,J-1,L-1)
A-a
A-b Guide page
C3073 C3075
C3078 C3079
C3073 C3076
C3077 C3080
C2683
R2512-R2519
R2677 R2679
R2681 R2682
C2983
Detailed page
A-a A-b
JACK
B
ZONE 2
ZONE 3
AB
C
CN3785
A_A_TU_L
A_A_TU_R
TE
L 13942296513
D
VIDEO
E
PHONO
www
CD-R/
F
CD-R/
A
1/3
112
1
http://www.xiaoyu163.com
2
EMC (B-2, F-2,L-2)
AWX9647- /J
C2501-C2504 C2581-C2584
R3013 R3020
0 C2521-C2524 C2601-C2604
R3014
C2541-C2544 C2621-C2622
R2741 R3019
C2561-C2562 C2641-C2644
R2748 R3021
R3005 R3022
HN C2563-C2564 C2623-C2624
R3018
C2951-C2952 C2971-C2972
AWX9647- /J
JACK (B-1)
AWX9647- /J
0.1u/50 JA2501,JA2504
XKB3017-
JA2506
470p/50
JA2502
AKB7233-
0.01u/50
JA2503
XKB3017-
NM
JA2505 NM
NM
JA2951 XKB3017-
0.01u/50
JA2952 NM
ZONE OUT
EMC
R2951
1k
W
4
6
OUT
5
R
C2981
R2952
0.01u/50
C2982
7 1k
*R2971
NM
R2957 NM
1k
GNDCH
R2958 NM
W 1
3
OUT
2
R
*C2983
*R2972
0.01u/50
C2984
1k
ZONE3
NM
R2959
NM
R2960
NM
CN2501
SELMID
XKP3072-A
BTR
1
R2698
GNDD
2
NM
BTL 3
*R3909
0
*R3908
0
R2689
R2510 R2684
0 0 NM
R2690
R2511
R2685
0 0 NM EMC
C3071 R2686
NM 0
7
CH
C3072 R2503
GNDCH
NM 330
W (MAIN)
4
6
DVD
5
R
R2504
330
R2523
330
W
1
TV/ 3
SAT
2
R *R2512
SELMID
R2524
0
*R2513
330
0
*C3073
NM R2543
*C3074
330
4
NM
1
3
2
R2544
330
GNDCH
L2561 R2563
W
4
2.2k
DVR/ 6
NM
BDR
OUT
5
R
SELMID *R2514
0
*R2515
L2562 R2564
0
2.2k
*C3075 NM
7
NM
R2583
*C3076
GNDCH 330
NM CH
W
1
DVR/
3
BDR
IN
2
R
SELMID
R2584
10MID
330
ONLY
PHONO (P3 A-1)
*R2663
330
W
4
6 *L2661
*L2663
5
R NM NM
7
SELMID
W 1 *R2516 *L2662 *L2664
3
0
NM NM
CD
*R2517
2
R
0
*R2664
*C3077
330
NM
CH
R2603
*C3078
220
NM
R2604
220
GNDCH
L2621
W
4
x ao
6 NM
TAPE y
5
OUT
SELMID
R
*R2518
0
*R2519 L2622
. 0 i
7 NM
*C3079
R2643
NM
*C3080
330
GNDCH
W CH
1 NM
TAPE 3
IN 2
R
R2644
330
EMC EMC
2
http://www.xiaoyu163.com
3
8
A-a
1/3
AWX9647- /J
NM
NM
NM
SELMID
(P3 A-8)
R2953
A_AZ2LOUT
R2955
1k
C2953
1k
Q2951
IMX25
NM GNDA
Q2951 C2954
IMX25
R2956
NM Z2MUTE
R2954
1k A_AZ2ROUT
1k
*R2973
A_AZ3LOUT
*R2975
1k
*C2973
10k
*Q2971
IMX25
NM GNDA
*C2974
*Q2971
IMX25
*R2976
NM Z3MUTE
*R2974
10k A_AZ3ROUT
1k
ZONE3
AWX9647
C2973,C2974 NM
R2971,R2972 1k
R2973,R2974 1k
R2975,R2976 1k
Q2971 IMX25
Q Q
3 6 7
*C2505
22u/50
*C2506
22u/50
*C2525
22u/50
*C2526
22u/50
*C2545
22u/50
*C2546
22u/50
*C2565
10u/50
*C2566
10u/50
*C2585 *C2587
NM 22u/50
*C2586 *C2588
NM 22u/50
EQUALIZER AMP
*IC2661 (1/2)
NJM4565MD V+7_A
*C2663 V-7_A
3
4 *R2673
*C2677
10u/50
1 470
8 10u/50
2
*R2669 *R2671
390k 30k
*C2673
*C2671 NM
*C2675
8200p/50 NM
*C2676
*C2672
NM
GNDA_PN
*C2674
8200p/50
NM
*R2670 *R2672
390k
30k
V+7_A
6
8 *R2674 *C2678
7
*C2664
470
10u/50
4
10u/50 5
*IC2661 (2/2)
V-7_A
NJM4565MD
*C2605
*C2609
NM 22u/50
*C2610
*C2606
22u/50
NM
R2623 *C2625
u163
2.2k 10u/50
R2624 *C2626
2.2k
10u/50
*C2645
22u/50
*C2646
22u/50
SC-37
3
4
2 9 9 4
S
Z
CN3792
CN7502
*JP3001
NM
SELMID
(P3 A-8)
V+5_AD
*R3033
NM
C3021
2125
C3022
1000p/50
CH
NM
C3012 C3011
1000p/50 1000p/50
CH CH
C3014 C3013
*R3007
NM NM A_SIRIUSR
NM
C3016 C3015
GND_SIRIUS
*R3008
NM NM
A_SIRIUSL
NM
V+12_A
R3006 R3011 V+7_A
!
0 0
R3012
C3003
0
NM
R3009
0
R3010
SELMID
0
(P3 A-8)
GNDA_RIP
R3015
NM
C3004
NM
GNDCH
(MAIN)
!
V-12_A V-7_A
*C3732
A_AADFRIN
22u/50
*C2731
A_AADFLIN
22u/50
SELMID
(A-1)
GNDA
1 3 1 5 0 5 8 2 9
41
INR3
42 INL3
INR4
43
INL4
44
INR5
45
INL5
46
INR6
47
INL6
48
INR7
IC2501
49
INL7 BD3473KS2
50
INR8
51
INL8
52
INR9
53
INL9
54
INR10
55
INL10
56
INR11
57
INL11
58 INR12
INL12
59
60
INPUT SELECTOR
& VOLUME
: Audio Signal Route
AWX9647- /J
CN2510 AKP7123-A
NM
R3951-R3958
SELMID
m
co
.
AF
CN7671
4
2 8
9 9
SELMID (A-1)
*R3018
C3018 0
C3017
NM NM
*R3019
0
*R3020
*R2740 *R2741
NM 0 0
R2701
A_ADAFLOUT
6.8k
A_ADASWOUT
R2703 R2705
1.5k 8.2k
IC2701 TC4066BFN V+7_A
1 14
IN/OUT1
VDD
2 13
OUT/IN1
CIN1
3 12
OUT/IN2
CIN4
4 11
IN/OUT2
IN/OUT4
5 10
CIN2
OUT/IN4
6 9
CIN3
OUT/IN3
7 8
VSS
IN/OUT3
R2704 R2706
1.5k 8.2k
GNDA
(GNDDAS) V-7_A
R2702
A_ADAFROUT
6.8k
V+7_A
Q2722
LTA124EUB
Q2721
LTC124EUB
GNDA
(GNDDAS)
V-7_A
A_A_Z3R_VLIN
A_A_Z3L_VLIN
C2700
NM
D2691
1SS302
V+7_A
R2687
NM (2125)
C2695 CFHX
0.01u/16
*C2691
SELMID
(P3 A-8)
330p/50 CH
C2693
9 4 2 8 9 9
ACH1479-A
C2696 CFHX
20
AGND1 C2697
TNF2 19 0.01u/16
BNF2 100p/50
*C2692 CH
18 CH
C2698
BOUT2
330p/50
17
C2694
BOUT1 100p/50
16 CH
BNF1 ACH1479-A
15 R2688
TNF1
14 NM
(2125)
VCC
13
DGND
12
V-7_A
DATA
11
CLOCK
10
VEE
GNDD
9
FROUT
8
FLOUT
7
SROUT
6
SLOUT
5
SWOUT
4
COUT
SBROUT 3
SBLOUT
2
1
GNDA
47k
*R3951
*R3952 47k
*R3953 47k
*R3954 47k
*R3955
47k
*R3956 47k
47k
*R3957
*R3958 47k
GNDA