Pioneer SC-LX85 Service Manual page 98

5
AA
CN3794
SELMID
(P3 A-7)
*R3018
0
*R3019
0
*R3020
*R2740 *R2741
0
NM 0
SELECT
IC2702
LSSN H L
MID
UPC4570G2-A-TFB
C2703
IC5301(CONT) H L
SELECT NJM4565V-TFB
100p/50 CH
ON OFF
SW DOWN MIX
V+12_A
R2701 R2707 R2709
SW DOWN MIX
6.8k 5.6k 330
R2703 R2705 R2711
6
8 *C2707
10
7
1.5k 8.2k
10u/50
4
V+7_A
TC4066BFN 5
(P3 A-7)
14 SELMID V-12_A
/OUT1
(1/2)
VDD IC2702
13
UT/IN1 NJM4565MD
CIN1
12
UT/IN2
SELMID
CIN4
11
/OUT2 (P3 A-7)
IN/OUT4
10
N2
OUT/IN4
9
N3
OUT/IN3 IC2702 (2/2)
8
SS
NJM4565MD
IN/OUT3
R2712
3
4 *C2708
V-12_A 10
R2704 R2706
1
10u/50
8
2
1.5k 8.2k
V-7_A V+12_A
R2702 R2708 R2710 V-7_A
6.8k 5.6k 330
V+7_A
C2704
100p/50
CH
DA
V-7_A
LSSN
00
*Q2851
50 2E 1
D2691
1SS302
2B 2
1C 3
87
(2125) GNDD
CFHX
VLSO
u/16
VLSCK GNDA
2691
SELMID
(P3 A-7)
CH
2693
9-A
CFHX
C2697
u/16 NM
100p/50
CH
CH
C2698
p/50
2694 100p/50
CH
479-A
2688
M (2125)
V-7_A
GNDD
10u/50
*C2751
*C2752
10u/50
*C2757
10u/50
*C2758
10u/50
A_A_Z3LOUT
A_A_Z3ROUT
*C2753
10u/50
*C2754
10u/50
*C2755
10u/50
*C2756
10u/50
R3991
DAC OUT<-> NM
PRE OUT
R3992
pattern A
NM
R3993
INPUT<-> NM
ZONE OUT
R3994
pattern A
NM
R3995
HP<-> NM
When ordering service parts, be sure to refer to "EXPLODED VIEWS and PARTS LIST" or "PCB PARTS LIST".
ZONE OUT
R3996
pattern A
NM
The > mark found on some component parts indicates the importance of the safety factor of the part.
R3997
NM
R3998 Therefore, when replacing, be sure to use parts of identical designation.
MULTICH IN
NM
<->PRE OUT
pattern B
R3999 : The power supply is shown with the marked box.
NM
GNDA GNDA
5
6
*C2827
A_A_Z2LOUT
10u/50
*C2826
A_A_Z2ROUT
10u/50
61
AGND6
62 INR13/FRIN2
INL13/FLIN2
63
INR14/SRIN2
64
INL14/SLIN2
65
INR15/SWIN2
66
INL15/CIN2
67
INR16/SBRIN2
68
INL16/SBLIN2
69
AGND7
70
INR17/RECR1
71
V+7_A
INL17/RECL1
72
INR18/RECR2
73
INL18/RECL2
INPUT SELECTOR
74
RECR3
& VOLUME
75
RECL3
76
RECR4/SUB2R
77
RECL4/SUB2L
78 AGND8
AGND9
79
80
GNDA
*R6748 *R6747
47k 47k
*R2827
(1/2)
NM NJM4565MD
R2803 R2809
1k 220 IC2801
C2801 3
C2805
1u/50
1u/50
*Q2801
2
2SK208(Y)
Q2803 (1/2)
IMX25
R2805
V+12_A
10k
UMD2N
6 2C
5 1B
1E
4
R2806
V-12_A
10k
V+12_A_HP
Q2803 (2/2)
*Q2802 IMX25
2SK208(Y) 6
C2806
1u/50
R2804 C2802
*R2828 1k 1u/50 R2810 (2/2) 5
220 NJM4565MD
NM IC2801
HEADPHONE AMP
A_A_PRE_FL
A_A_PRE_FR
A_A_PRE_C
SW PRE AMP
IC2751
NJM4565MD
V+12_A
(1/2)
3
4
R2763 *C2760
A_A_PRE_SW1
1 0
10u/50
8
2
R2760
R2759
6.8k 15k
C2759
100p/50
CH
CH
100p/50
C3951
6.8k 15k
R6742
R6743
6
8
10u/50
7 0 A_A_PRE_SW2
R6745
*C3952
4
5
IC2751
NJM4565MD
V-12_A
(2/2)
A_A_PRE_LS
A_A_PRE_RS
A_A_PRE_FHFWL
A_A_PRE_FHFWR
6
A-b
1/3
40
INL2
INR2 39
INL1
38
INR1
37
AGND5
36
SUB1L
35
SUB1R
34
AGND4
33
ADCR
32
ADCL
31
ONLY
AGND3
AWX9790- /J
30
FRIN1 AWX9831- /J
29
AWX9832- /J
FLIN1
AWX9833- /J
28
AWX9834- /J
SRIN1
27 AWX9835- /J
SLIN1
26
VOL2 (P3 E-7)
SWIN1
25
CIN1
24
A_ADASBROUT
SBRIN1
SBLIN1 23
A_ADASBLOUT
AGND2
22
21
V+7_A
GNDD
V-7_A
*R2611
1k
*R2612
1k
C2821
RY2851
V+12_A_HP V+12_A 10p/50 CSR1031-A
V-12_A_HP
R2817 R2823
2
2
3
0 NM
4 3
C2819 R2819
4
4
1
470u/16 33
8
1/4W
R2815
22k 7 7
8 8
C2813 R2824
9 9
NM NM
C2822
10p/50
GNDA
(GNDHP)
C2814
AWX9790- /J AWX9767- /J
NM
AWX9831- /J AWX9828- /J
R2816
AWX9832- /J AWX9829- /J
22k
AWX9833- /J AWX9830- /J
AWX9834- /J AWX9934- /J
AWX9835- /J
C2815 0.01u/16 0.01u/50
8
C2820 R2820
7
C2816 0.01u/16 0.01u/50
470u/16 33
4
1/4W
R2818
0
V-12_A_HP V-12_A
PREOUT
A
2/3
1. RESISTORS
NOTE
Unit: k-k , M-M or unless otherwise noted.
Rated Power: 1/10w unless otherwise noted.
Toleranee: (J)5% unless otherwise noted.
2125 : RS1/8SQ
NO MARKED : RS1/10SR
2. CAPACITORS
No marked Ceramic Capacitors are CKSRYB.
No marked Electrolytic Capaciters are CEAT(VSX and VSA series)
No marked Electrolytic Capaciters are CEAK(SC series)
CH:CCSRCH CFHX:CFHXSQ unless otherwise noted.
Unit: p-pF or u-uF unless otherwise noted.
Ratings: Capacity(F)/Voltage(V) unless otherwise noted.
1000p or less : CCSRCH, Over 1000p : CKSRYB
3. NM: No Mount
The ! mark found on some component parts should be replaced
with same parts(safety regulation authorized) of identical
designation.
TUNER (P3 E-1)
V+12_A
V+12_AB
C3956
NM
GNDA
C3955
NM
NM
*R3911
*R3912 NM
*C3904
0.01u/50
*C3905
0.1u/50
GNDCH GNDTC
R3905-R3906
SC-57
7
AUDIO ASSY (1/3)
A
1/3
(SC-57 : AWX9790)
(SC-55/SC-1526-K : AWX9833)
AD
CN7724
*CN2504
(NO MOUNT)
CONNECTOR
52044-0745
(A-1)
15 MICDET 7 MICDET
14 6
V-7_A V-7_A
V-7_A
13 GNDA 5 GNDA
V+7_A 12 GNDA 4 GNDA
11 V+7_A 3 V+7_A
GNDA
10 2
GNDA GNDA
9 MICOUT 1 MICOUT
8 GNDA
51048-0400
7 GNDA
6 HPL 1
HPL
5 GNDHP 2 GNDHP
4 GNDHP 3 HPR
3 HPR 4 HPDET
SELMID
2 GNDHP
(P3 A-7)
*JH2505
1 XHPDET
(NO MOUNT)
*R6737
*CN2503
10
NM JP2505
D20PYY0455E
CN2861
FHMUTE
SBMUTE
XKP3078-A
AMUTE
*R2861
R2841
0 1
R2840
470
2
0
RYHP R2839
3
0
R2838
0 4
*R2863
R2837
LSSN
5
0
*R2836
470 PRESEL
6
0
*R2835
7
0
*R2834
0 8
R2865
R2842
9
0
5.6k R2843
10
0
Z2VLSO *R2833
0 11
*R2832
VLSO
0 12
*R2867
*R2831
VLSCK
13
0
5.6k SELMID
14
(P3 A-7)
GNDD
15
ZONE3
GNDD
V-12_A
V+12_A_RY V+12_A
R2855 R2852
47k 0
LSA1576UB(QRS)
Q2852
PRESEL
PRESEL
SBMUTE
SBMUTE
AMUTE
AMUTE
FHMUTE
FHMUTE
R2853
0
Q2853
V-12_A
LTC124EUB
V-12_A_RY
GNDA
C3919
7 RECMUTE
10p/50
6 TUIREQ
C3920
5 TUSENSE
10p/50
C3921
4 TUADDR
10p/50
3 TURST
2 TUSDA
GNDD
1 TUSCL
XKP3074-A
CN3901
*R3920
NM
*R3921
NM
*C3910
NM
*C3915
10p/50
CH
*C3916
10p/50
CH
*C3917
10p/50
CH
*R3915
3.3k
*R3914
V+5_T
*CN3902
3.3k
9604S-09C
1 TURST
2 TUSDA
TUSCL
3
TUIREQ
4
V+5_T
5 NC
*Q3901
2SD1664(PQR)
GNDT
6
A_A_TU_R
!
TR
7
V+5T
8
A_A_TU_L
9 TL
EXCEPT ONLY
AWX9829- /J AWX9829- /J
AWX9832- /J AWX9832- /J
AWX9835- /J AWX9835- /J
1M 0 GNDA
7
8
A
B
FHMUTE
XHPDET
RYHP
MICDET
LSSN
PRESEL
AB
AMUTE
SBMUTE
CN3774
Z2MUTE
Z3MUTE
Z2VLSO
C
VLSO
VLSCK
GNDD
GNDD
A
2/3
D
AB
CN3722
E
GNDTC
F
A
1/3
89
8