Onkyo TX-L55 Service Manual page 16

A B
SCHEMATIC DIAGRAM 3
DSP section 2
1
U1
P2102
1 4
2 5
6
8 11
9 12
13
15 C2108
102K
2
P2104
1 4
2 5
6
8 11
9 12
13
15 18
16 19
20
3
22 C2113
102K
4
5
C
V1COUT
V2CIN
DVDCIN
+5VVD
NADG-8338
-5VVD
C2127 104Z V2CIN
C2119 10/16 V2YIN V1CIN
+
COUT2
C2120 10/16
V2VIN
+
COUT1
R2128 75 V1COUT V1YOUT
V2YIN
R2129 75
V1YOUT
DVDYIN
R2130 75
V1VOUT
+5VVD
C2128 104Z V1CIN
-5VVD
C2121 10/16 V1YIN
+
C2122 10/16 V1VIN
+
V1YIN
YOUT2
C2129 104Z DVDCIN
YOUT1
C2123 10/16
DVDYIN
+
C2124 10/16
DVDVIN V1VOUT
+
V2VIN
DVDVIN
+5VVD
+5VVD
RN2404
-5VVD
VMUT1
Q2116
V1VIN
RN2404
VMUT2
VOUT2
VOUT1
Q2117
TK15420M
R2150 0
7
Q2051A
R2056
1.8K
R2151 0 COUT1
R2152 0
R2066
1.8K
1
Q2051B
R2153 0 TK15420M
YOUT1
YOUT2
COUT2
R2154 0 VOUT1
Q2106
MM1512
C2155 22/16
R2155 0 1
+
SAG YIN
C2156 100/6.3
2
+
OUT GND
3
VCC CIN
+5VVD
C2158 104Z
C2157 100/6.3
+
-5VVD
D E
SW2
SW1
C2012 R2005
+
NJM2279M
390
0.47/50
Q2101
SW2
R2134 C2140
470J
75
R2133
NC
R2006 C2008
390 103Z
SW2
SW1
+5VVD
R2010
L2002
NJM2279M
Q2102 820 220K
2SC2712
Q2002
SW2
+5VVD -5VVD
-5VVD
R2135
C2141
75 470J
R2170
1K
C2035 47/16
+
C2028 103Z
SW2
C2036 47/16
SW1
+
C2029 103Z
NJM2279M
Q2103
SW2
R2136 C2142
470J C2027
75
+5VVD
SCL
R2193
C2021
L2007
SDA
1K
101K
100/6.3
C2015
R2051
5
+
100 47/16
6
R2015
820
C2019 220J
C2017 120J
R2011 1.2K
2
R2061 C2016
3
+
100
47/16
+5VVD
Q2120
2SA1162-GR
C2179
C2159
6 RN2404
+ 104Z
D2103
R2173 R2073 C2071
5 C2187
1/50
4 C2160 33K 1SS355 2.2K
104Z 47/16
Q2124
103Z
F G
+5VVD 78L09
+9VD
Q9607
R9606
1 3
O I
G
+12VA 78M12HF
Q9602
3 1
MM1093NF Q2001 O I
G
C2003 G
3 2
+ O I
2.2/50
Q9603
-12VA
79M12HF
78M05HF 78M12HF
+5VVD
Q9604 Q9609
R9604
3 1 3 1
O I O I
G G
Q9609A
G
R9605
3 2
O I
1.5
Q9605
79M05FA
-5VVD
L2008 +5VDSP
MPC2905HF
220K Q9606
R9610
3 1
O I
G NC
C2033 C2034
+ +
100/6.3 100/6.3
C2030 C2031
GND
104Z 104Z
Q9602B
D9609
1
+5.6V
NC
78M56
Q9608
D9610
3 1
O I
G NC
Q2005 TC90A69F
-VP
Q9501
2SA1015-GR
1 2 R9506
22
104Z R9507
8.2K
+
R9508
8.2K
+5VTU +12VA
R2016 R9609
820 330
C2020 220J
TO NAVD-8339
C2018 120J
R2012 1.2K
+5VVD
+
Q2071
TX-LR552
H
22
GND
R9602
1
R9603
1
+18V
R9510
R9513
NC
1.5 NC
D9503 D9502
1 1
3
RL1N4003 RL1N4003
2
1
D9505 D9504
1 1
RL1N4003 RL1N4003
R9514
P9001B
R9511
NC
-18V
-B NC
+8V
1 4 2
1
D9513
D2SB80A
P9002B
R9512
R9607
2.5A/250V
NC
4
R9608 +9V
1 3
2
NC
1
P9101B
+13V
POWER
POFF
-42V
D9507
1 R9501 4
3
RL1N4003 2.2
FLAC1 2
FLAC2 1
P9003B
+13V
POWER
FLAC1
FLAC2
E9501
SW1
SW2
VMUT1
VMUT2
SCL
SDA
CONV
CPNT
DIN1
DIN2
DIN3
+5VDSP -5VVD+5VVD +9VD
SDET