Bavd - Onkyo TX-SR308 Service Manual

A B
SCHEMATIC DIAGRAMS-3a
Audio INput Section
1
U0010 AMP (IC), ASP PC BOARD
BAAF-0341
FROM SD-6 K-8 BADG-0364 (MPU SECTION)
P5501B
2
P4000
LBC2518T2R2M
L4001
R4000
RI
330
3
4
R4003
3
Rch
330
1
CD/TV
R4004
2
Lch
330
P4003
4
R4007
3
Rch
330
1
GAME
R4008
2
Lch
330
5
C4203
4
102J
Rch R4013 (MULTI SW IN)
6
(MULTI SW)
330
4
CBL/SAT
R4014 (MULTI C IN)
Lch 5
(MULTI C)
330
R4015
3
Rch
2.2K
VCR/DVR
1
OUT
R4016
2
Lch
2.2K
P4005
C4204
7 102J
R4017
Rch 6 (MULTI SR IN)
(MULTI SR)
330
6
4
VCR/DVR
R4018
Lch 5 (MULTI SL IN)
(MULTI SL) 330
R4019
3 (MULTI FR IN)
Rch
(MULTI FR) 330
1
DVD/BD
Lch R4020 (MULTI FL IN)
2
(MULTI FL)
330
C4205
P4006
102J
7
-VP PART13
1 FLAC1 N.M N.M
2 1 2 1
R960
2 FLAC2
7
8.2(1/2W) KDS4148U KDS4148U
3 SEC3_1 D964 D965
4 SEC3_2
D960 D961 220(1W) Q960
5 RL1N4003
RL1N4003 R961 2SC2235
J960
N.M
R950
8.2(1/2W)
U0011 -VP PC BOARD BAPS-0342
8
TX-SR308 HT-R280/ 380/ 538/ C230
C D
AUDIO ANALOG SIGNAL(TV/CD)
FRONT L
FRONT R
FROM SD-6 K-7 BADG-0364 (MPU SECTION)
TO SD-9 A-3 BAETC-0365 (U-PORT SECTION)
P5502B
JL502A
100K
R4080
100K
R4081
47K
R4078
47K *NO USE
R4079 220K
220K
R4192
R4069
R4193 220K
R4194 220K
R4196 220K
220K
R4195
C4054
80 1
N.C. N.C.
47/25
79 2
IN-L9 SBLC
78 3
IN-R9 SBL-OUT
77 4
N.C. AGND
76 5
INLA/RECL1 SBR-OUT
75 6 C4053 47/25
INRA/RECR1 SBRC
74 7
N.C. AGND
C4056 47/25
73 8
IN-L8 SLC
72 9
IN-R8 SL-OUT
71 10
IN-L7 AGND
70 TUNER 11
IN-R7 SR-OUT
69 12 C4055 47/25
IN-L6 SRC
68 CD/TV 13
IN-R6 N.C.
C4057 47/25
67 14
IN-L5 SWC
66 GAME 15
IN-R5 SW-OUT
65 16
IN-L4 R2A15218FP AGND
64 17
IN-R4 C-OUT
C4052 47/25
63 18
Q4001
IN-L3 CC
62 CBL/SAT 19
IN-R3 AGND
C4051 47/25
61 (Botom view) 20
IN-L2 FLC
60 VCR/DVR 21
IN-R2 FL-OUT
59 22
IN-L1 AGND
58 DVD/BD 23
IN-R1 FR-OUT
C4050 47/25
57 24
N.C. FRC
47/50 56 25
AGND N.C.
C4060
C4065 474J
55 26
ADCR BASS_L1
R4085
54 27
ADCL BASS-L2
53 28 C4066 823J
C4061
N.C. TREL
47/50 52 29 C4067 223J
AVEE N.C.
51 30
MUTE AVCC
+7V
-7V
47/25 NJM4580 3
C4209 1
DMIXR
Q4003A
R4091
2
22K
R4090 12K R4092 R4093
C4090 101J
330 3.3K
R4094 10K
FL/FR: -12dB
SW: +3.5dB
R4095 10K
BAPS-0342
C4091 101J
R4096 R4097
R4098 12K
330 3.3K
+3.3VMPU 1
5
NJM4580
FL_1AC 2
47/25
DMIXL 7
-VP 3 Q4003B
R4099
6 DAC-FL
C4210
FL_2AC 4
Downmix
22K
+3.3VMPU 5
E F
FROM SD-6 K-6
BADG-0364 FROM SD-6 K-6 BADG-0364
P5503B P5504B
R4182
220K
R4181
220K
+20dB
C4130
R4130
47/50 220
3
NJM4580 * C4107
VAL
1 SW_OUT
Q4130A
2
R4134
10K
C4132
103J
C4104
47/50
SR_OUT
5
NJM4580
7 SL_OUT
Q4130B
6 47/50
C4103
Subwoofer
C4101
47/50
FR_OUT
FL_OUT
47/50
C4100
47/50
C_OUT
*N.M C4102
1.8K
47/50
ZONE2_R
C4108
*
R4174 R4176
68 47
47/50
ZONE2_L
C4109
*
R4175 R4177
68 47
DAC-FR
MPP
G H I
TO SD-4a K-5 BAAF-0341
(MAIN AMP)
TX-SR308
HT-R380
HT-RC230
HT-R280
HT-R538
MDD
MMO MDD
MDC
MMQ MDC
MMO
MDF
MPP
MMR
MPP
ADD
A DEL
47uF/50V 2.2uF/50V
C4107
220K 2.2K
R4107
R4002 DEL 10
R4001
10
DEL
15
R4005
J6500 J6501 ADD DEL
Q4170 78M15 78M12
Q4171 79M15 79M12
R4176 R4177 47 15
R4117 R4127
270 100
Q4107
RN1441
Q4117
RN1441
SW
*
Q4104
RN1441
SR
2.2K
R4114
R4113
SL Q4103
2.2K
RN1441
Q4101
RN1441
FR
2.2K
R4111
R4110 Q4100
2.2K
RN1441
FL
Q4102
RN1441
2.2K C
R4112
2.2K
R4118
RN1441
Q4108
Q4109
RN1441
2.2K
R4119
*
10
+15V
* Q4170
+12V R4001
78M15
3 1
O I *
J6500
10
* R4002
* J6501
15
* R4005
3 2
O I
Q4171
*
79M15
-15V
-12V
TX-SR308 HT-R280/ 380/ 538/ C230
J K
TO SD-7 K-6 BAVD-0375 (VDEO SECCION)
JL503A
NSCT-3P876
NOTE
DEL:Deletion
ADD:Addition
DC Canadian model
DD USA model
DF Taiwanese model
MO Saidi Arabian model
MQ Hong kong model
PA Australian model
PB U.K. model
PP
MP CE(European) country model
MR Chinese model
JJ Japanese model
*
A
2 1
NC D4218
1 2
NC D4208
102J C4208
3
R4029
2
SW preout
100
SW
SR
SL
R
L
C
AGND
S1_GND
+22V
0.22 (1W)
S1L+
D4301
D4300
RL1N4003
R4160
RL1N4003
1 2 1 2
GND_AMP
RL1N4003
D4302 D4303
1 2 1 2
RL1N4003
0.22 (1W)
S1L-
R4161
GND_AMP
BAAF-0341