Preout & Control Assy - Pioneer VSX-LX70 Service Manual

1
10.30 PREOUT & CONTROL ASSY
A
*2
JA2805
JA2806
*2
L
R
C
B
SW
C2891
*2
0.01
C2894 LS
STBY
GNDCH
RS
*2
SBL
C
SBR
GNDCH
*1 AWX8889
C2801,C2802
C2821,C2822
C2841,C2842
C2861,C2862
C2951,C2952
C2953,C2954
C2811,C2812
C2831,C2832
C2851,C2852
C2871,C2872
D
232C
E
JA2931
AKP1213
GND
5
(NC) 9
(DTR) 4
(NC)
8
TXD(RD)
3
BUSY(CTS) 7
RXD(TD) 2
(DSR)
6
(CD)
1
GNDCH
F
AE
162
1
2
AWX8889
PREOUT
AKB7172
R2802
JA2805
100
(1/2)
IMX25
(F)
3 Q2802
(1/2)
1
(1/2)
2
IMX25
R2801
Q2801
100
JA2805
Q2822
R2822
IMX25
(2/2)
*2
(C)
100
6
(1/2)
4
(1/2)
(SW)
5
IMX25
R2821
Q2821
7
100
JA2806
R2842
(1/2)
IMX25
(S)
100
3 Q2842
(1/2)
1
(1/2)
2
IMX25
R2841
Q2841
100
*2
JA2806
R2862
(2/2)
IMX25
100
(SB)
6 Q2862
(1/2)
4
(1/2)
5
IMX25
R2861
Q2861
7
100
C2892
0.01
C2893
(F)
: AUDIO SIGNAL ROUTE (F)
STBY
(C)
GNDA
: AUDIO SIGNAL ROUTE (C)
(S)
: AUDIO SIGNAL ROUTE (S)
(SB)
100p
: AUDIO SIGNAL ROUTE (SB)
(SW)
: AUDIO SIGNAL ROUTE (SW)
270p
(IP)
: AUDIO SIGNAL ROUTE (IP)
C2942
STBY
C2933
IC2931
1
C1+
2
V+10V
3
C1-
4
C2+
5
C2-
6
V-10V
100
7
R2941
8
R2932
100
C2939
0.01 D2931 R2937
10k
R2939
0
2
3
(F)
R2806
R2804
IMX25
Q2802
(2/2)
120
270
R2808 R2810
10k 10k
R2807
R2809
10k
R2803 R2805
IMX25 10k
Q2801
(2/2) 270
120
(C)
R2824 R2826
Q2822
(2/2)
IMX25 R2830
120 270
R2828
10k
10k
R2827 R2829
10k 10k
R2825
R2823
IMX25
Q2821
120 270
(2/2)
(S)
R2844 R2846
Q2842
(2/2)
IMX25 R2850
120 270
R2848
10k
10k
R2847 R2849
10k 10k
R2843 R2845
IMX25
Q2841
(2/2)
120 270
(SB)
R2866
R2864
Q2862
(2/2)
R2870
IMX25
120 270
R2868
10k
10k
R2869
R2867
10k 10k
R2865
R2863
IMX25
Q2861
(2/2)
120 270
L2931
C2934
STBY
0.1/16
D2951
0.1/16
R2931
0
HIN202EIBNZ
16
VCC
15
GND
R2942
14
13
100
12
11
R2943
10
RXD
R2934
9
100
TXD
100
Q2931
C2945
2SC4154(EFG)
1000p
GND
23 21 19
22 20
VSX-LX70
3
4
(F)
(L)
(R)
(C)
(C)
(SW)
(SW)
(S)
(LS)
(RS)
(SB)
(SBL)
V+5_6U
17 15 13 11 9 7 5 3
18 16 14 10 8 6 4 2
12
N 2/2
CN4320
4
CN2802
1
XKP3082