Preout & Control Assy - Pioneer VSX-84TXSi Service Manual

1
3.31 PREOUT & CONTROL ASSY
A
CN2805
(1/2)
AKB7012
2
L
1
3
R
CN2805
AKB7012 (2/2)
5
C
4
(SW)
6
SW
B
7
CN2806
C2891
AKB7172 (1/2)
0.01
2
C2894 LS
1
STBY
3
RS
GNDCH
CN2806
AKB7172
(2/2)
5
SBL
4
6
SBR
C
7
CN2807
C2892
STBY
SBL
0.01
C2893
STBY
SBR
GNDCH
JA2901
XKN3015
7
2
3
D
5
6
4
1
RX
GND
TX
SR
SR +
E
JA2931
AKP1213
GND 5
(NC) 9
(DTR)
4
(NC) 8
TXD(RD) 3
BUSY(CTS) 7
RXD(TD) 2
R2939
(DSR) 6
(CD)
1
GNDCH
F
AE
86
1
2
PREOUT
(F)
R2801
Q2801
100
(F)
R2807
IMX25
(1/2)
10k
R2808
(1/2)
Q2802
10k
R2802
IMX25
100
(C)
R2821
Q2821
100
(C)
R2827
IMX25
10k
(1/2)
R2828
(1/2)
Q2822
10k
R2822
IMX25
100
(S)
R2841
Q2841
(S) 100
R2847
IMX25
10k
(1/2)
R2848
(1/2)
Q2842
10k
R2842
IMX25
100
*2
(SB)
R2861
Q2861
100
(SB)
R2867
IMX25
(1/2) 10k
R2868
(1/2)
Q2862
10k
R2862
IMX25
100
R2881
Q2881
STBY
R2887
STBY
(1/2) STBY
R2888
(1/2)
Q2882
STBY
R2882
STBY
STBY
R2901
STBY
L2901 QTL1013
D2901
L2902 QTL1013
L2903 QTL1013 1SS355
L2904 QTL1013
C2942
STBY
C2933
1u
IC2931
1
C1+
2
V+10V
3
C1-
4
C2+
5
C2-
6
V-10V
100
R2931 7
R2932 8
100
MAX3232CPW
C2939
0.01 D2931
1SS355
0
232C
2
3
R2803 R2805
Q2801
(2/2)
IMX25
270
120
R2809
10k
R2810
R2806
R2804
Q2802 10k
(2/2)
IMX25
120
270
R2823 R2825
Q2821
(2/2)
IMX25 R2829
120 270
10k
R2830
Q2822
10k
R2824 R2826
IMX25
(2/2)
120 270
R2843 R2845
Q2841 (2/2)
IMX25 R2849
120 270
10k
R2850
Q2842
10k
R2844 R2846
IMX25
(2/2)
120 270
R2863 R2865
Q2861 (2/2)
IMX25 R2869
120 270
10k
R2870
Q2862
10k
R2864 R2866
IMX25
(2/2)
120 270
R2883 R2885
Q2881 (2/2)
STBY R2889
STBY STBY
STBY
STBY
R2890
Q2882
STBY
R2884 R2886
STBY
(2/2)
STBY STBY
L2932
C2934
STBY
L2931
1u
QTL1013
16
VCC
15
GND
R2933
14
100
13
12
11
10
TXD
R2934
9
RXD
100
Q2931
2SC4081(QRS)
R2937
10k
23 21 19
22 20
GNDV
VSX-74TXVi
3
4
(F)
(C)
(SW)
(S)
(SB)
D2951
1SS355
17 15 13 11 9 7 5 3
18 16 14 12 10 8 6 4
N
CN4320
4
C2968 R2976
10/50 100
AT
C2967 R2975
100
10/50
AT
XKP3082
1
CN2802
2