Pioneer VSX-56TXi Service Manual page 33

5
F
12V TRIGGER ASSY (AWX8472)
JA1922
RKN1004
W1908
3
12V TRIGGER
2
(DC OUT 12V
1
100mA MAX)
1901
VNE1948
JA1921
CHASSIS
STBY
D1921
3
2
STBY
1
C1921
0.01
C1910
STBY
C1911
0.01
CHASSIS
CN1901
AKP1213
GND
5
(NC)
9
(DTR)
4
(NC)
8
RS-232C
TXD(RD)
3
BUSY(CTS)
7
RXD(TD)
2
(DSR)
6
(CD)
1
5
6
Q1931
2SB1237X(QR)
R1934
6.8
R1935
R1931
6.8
560
C1937
R1936
10k
Q1932 STBY
DTC124EK-TLB
R1921
STBY
RS-232C
Tranceiver
IC1901
C1905
1
C1+
1/50 2
V+10V
3
C1-
C1906
4
C2+
1/50
5
C2-
6
V-10V
R1906
7
R1905
100
8
100
SP232AEN
C1907
D1902
0.01
1SS355
VSX-56TXi
6
7
IC1931
BA12T
OUT IN
3 1
2
C1904
1/50
L1901 D1901
C1903
1u
1/50 1SS355
16
VCC
15
GND
R1904
14
100
13
12
11
10
TXD
R1907
9
RXD
100
Q1901
2SC1740S(QRS)
C
R1910
B
10k
E
: AUDIO SIGNAL ROUTE (Lch)
(MR)
: AUDIO SIGNAL ROUTE (MULTI-ROOM Lch)
(DVD)
: AUDIO SIGNAL ROUTE (DVD Lch)
(F)
: AUDIO SIGNAL ROUTE (FRONT Lch)
(S)
: AUDIO SIGNAL ROUTE (SURROUND Lch)
(SB)
: AUDIO SIGNAL ROUTE (SURROUND BACK Lch)
(C)
: AUDIO SIGNAL ROUTE (CENTER ch)
7
8
A
CN1903
KP200TA4L
+B
REG G
12VDET
12V TRG
B
CN1902
B8B-PH-K-S
8 GNDU
7 MRIN
6 V+5.6
5 GNDU
4 232C DET
3 232C CTS
2 232C RXD
1 232C TXD
C
D
E
F
F
33
8