Onkyo HT-RC270(B) Service Manual page 11

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A
B
SCHEMATIC DIAGRAMS - 5
AUDIO INPUT/OUTPUT SECTION
1
U004
BAASP-0458
AMP. (AUDIO IN/OUT) BOARD
2
R4749
22
+7V
NJM4580M-D
C4726
471J
C4746
151J
for ONKYO
C4744
R4759
123J
332J
22
MJJ
C4745
-7V
R4745
R4744
270K
22K
6
C4749
10/50
P4500
7
R4747
R4741
C4741
Q4502:B
56K
47/25
6
R4740
5
100
+
+
Rch
330
R4742
C4742
C4740
C4809
470K
220/10
PHONO
4
102J
102J
C4750
R4752
C4752
NJM4580M-D
102J
470K
220/10
3
5
R4750
3
Lch
+
330 R4751
1
C4751
C4753
+
Q4502:A
56K
47/25
152
2
R4757
C4759
100
<AREA-7>
10/50
R4755
R4754
3
R4500
Rch
270K
22K
330
C4755
332J
C4754
1
TUNER
123J
C4756
151J
C4736
471J
R4501
2
Lch
330
P4501
C4800
7
102J
9
R4503
Rch
330
7
1
TV/CD
8
R4504
Lch
330
6
R4505
Rch
330
4
4
PC
R4506
5
Lch
330
3
R4507
Rch
330
1
GAME
2
R4508
Lch
330
10
P4502
9
R4509
Rch
330
CBL/SAT
7
R4510
8
Lch
330
5
6
R4511
Rch
330
4
OUT
5
R4512
Lch
330
VCR/DVR
3
R4513
Rch
330
1
IN
R4514
2
Lch
330
C4802
10
102
P4503
6
R4515
Rch
330
4
6
FRONT
5
R4516
Lch
330
SUBWOOFER
3
R4517
330
1
R4518
CENTER
2
330
C4803
102
P4504
7
6
R4519
Rch
330
4
SURR
Lch
5
R4520
330
7
3
R4521
Rch
330
SURR BACK
1
R4522
2
Lch
330
C4804
102
7
3
2 1
E4521
Z2/Z3 IC
P4500 P4501/P4502
P4503/P4504
P4505
P4506
P4507
P4508
AREA-1
708 without JJ,RC270
ALL
S 2ch
S 6ch
S 4ch
S 2ch
S 1ch
S 6ch
S 2ch
708 JJ
MJJ
S 4ch
S 6ch
S 4ch
S 2ch
S 1ch
S 6ch
----
DTR-40.2
ALL
G 2ch
G 6ch
G 4ch
G 2ch
G 1ch
G 6ch
G 2ch
DHC-40.2
ALL
G 2ch
G 6ch
G 4ch
G 2ch
G 1ch
G 6ch
G 2ch
808 without JJ
ALL
S 2ch
S 6ch
S 4ch
S 2ch
S 1ch
S 6ch
S 4ch
8
808 JJ
MJJ
S 4ch
S 6ch
S 4ch
S 2ch
S 1ch
S 6ch
----
50.2
ALL
G 2ch
G 6ch
G 4ch
G 2ch
G 1ch
G 6ch
G 4ch
1008 without JJ
ALL
S 2ch
S 6ch
S 4ch
S 2ch
S 1ch
S 6ch
S 6ch
1008 JJ
MJJ
S 2ch
S 6ch
S 4ch
S 2ch
S 1ch
S 6ch
S 2ch
C
D
TO BACPU-0463 PART-14:K3~5
P4511A
IMSA-9142B-20A
P4510A
B
NSCT-19P2199
B
F
AUX_L
AUX_R
47/50
C4525
47/50
C4526
R4825
R4826
220K
Z2L
R4921
100K
51
MUTE
TRER
-7V
52
AVEE
BASSR2
53
ADCL
BASSR1
54
ADCR
TREL
55
AGND
BASSL2
56
INR1
BASSL1
57
INL1
58
INR2
FR_Pri-OUT
59
INL2
FR_OUT
AUX_R
60
INR3
AGND
AUX_L
61
INL3
FL_OUT
62
INR4
FL_Pri_OUT
63
INL4
PHONO_R
64
INR5
PHONO_L
65
INL5
C_OUT
TUNER-R
66
INR6
R2A15220FP
AGND
TUNER-L
67
INL6
SW_OUT
CD-R
68
INR7
Q4500
SWC
CD-L
69
INL7
SRC
Val
PC-R
70
INR8
SR_Pri_OUT
PC-L
71
INL8
SR_OUT
GAME-R
72
SBR_Pri_OUT
INRA/RECR1
AGND
GAME-L
73
SBR_OUT
INLA/RECL1
SL_OUT
CBL/SAT-R
74
INR9
SLPri_OUT
CBL/SAT-L
75
INL9
VCR-R_OUT
76
INRB/RECR2
AGND
VCR-L_OUT
77
INLB/RECL2
SBRC
VCR-R
78
INR10/RECR4
VCR-L
79
INL10/RECL4
80
INR11/RECR5
AGND
-7V
FR_IN
7
FL_IN
R4773
C4770
R4774
R4784
C4780
R4783
NJM4580M-D
1
NON
NON
WHL/
WHL/
Z2/Z3 IC
Z2/Z3 IC
WHR
Tuner
SIRIUS
Z2 OUT
Z3 OUT
WHR
But Z2 out
Z2 OUT
But Z2 out
Z3 OUT
AREA-2 AREA-2A
AREA-3 AREA-4 AREA-5 AREA-6 AREA-7 AREA-8
R4845
R4849
R4848/R4850
----
----
----
----
----
----
----
----
----
----
----
----
----
----
----
----
----
----
----
----
----
----
----
----
----
----
----
----
----
----
----
----
----
----
----
----
----
----
----
----
----
----
----
----
----
----
----
----
----
----
----
----
----
----
----
E
F
TO BAHDM-0471
TO BAVD-0464
PART-20:A4
PART-12:I2
except 708JJ
except 808JJ
<AREA-8>
uCom
JL104A NSCT-9P900
uCom
F
JL4518A
NSCT-5P896
SRZ3MUT
Z3MUT
PRESRMUT
PREFRMUT
PRESBMUT
SBZ2MUT
Z2MUT
<AREA-9>
SIRUS-L
SIRUS-R
C4833
NM
10/50
C4834
10/50
NM
220K
Z2R
+7V
+6.6V
+60mAmax
SBR/Z2R/BiAmpR_OUT
SBL/Z2L/BiAmpL_OUT
30
29
28
27
26
25
24
FRC
23
22
SL/Z3L_OUT
21
20
SR/Z3R_OUT
19
18
FLC
C4796
17
47/25
CC
16
SW_OUT
15
14
C_OUT
13
12
11
10
FL_OUT
9
8
FR_OUT
7
6
SLC
5
4
3
2
SBL/Z2L/BiAmpL_OUT
1
SBR/Z2R/BiAmpR_OUT
R4775
22
C4771
220/10
NJM4580M-D
+
5
R4770
Q4503B
22K
6
Z2VOLCLK
VOLDATA
12K
R4772
R4771
101J
680
2.2K
Downmix
10K
FL/FR: -12dB
10K
SW: +5.5dB
101J
12K
R4782
R4781
680
2.2K
Q4551B
NC
4
3
2
1
3
RAD-196
E4520
Q4503A
1
2
2
R4780
DACFR
with Ht-Sink
Q4553
Q4551
+15V
22K
2SC2235
R4900
Q4552
2SA1488-Y
Q4550
-15V
+
22-1W
2SK365-GR
+7V
2SC1815-GR
1
C4781
D
R4785
12.4V
2
22
220/10
2
3
4
R4901
330
5
R4902
C4900
220-1/4W
470/35
C4902
220/25
C4910
C4912
220/25
470/35
2SK365-GR
Q4560
R4912
220-1/4W
Q4562
D
2SA1015-GR
2
-7V
R4910
-12.4V
Q4561
22-1W
R4911
2SC3851-Y
330
2SA965
Q4563
= mount
---
= no mount
P4515B P4516B P4517B
P4509B P4512B
AREA-10
----
----
----
----
----
----
----
----
----
----
----
----
----
----
----
----
----
----
TX-NR708/808/1008, TX-NA708/808/1008, DTR-40.2/50.2, DHC-40.2
G
H
NOTE:
XY in "SCHEMATIC-a / PART-b:XY" indicates the target
location of the plug or socket, X=A to E/H/K, Y=1 to 4/5/8.
R4845
220K
R4846
220K
R4839
-12V
R4840 220K
R4847
220K
2.2K
R4841 220K
R4849
220K
R4842 220K
R4848
220K
R4851
C4840
220K
104J
NJM4580M-D
3
SBZ2MUT
C4606
22/50
R4636
R4646
1
SW
Q4504A
100
2
120
R4764
Subwoofer
6.8K
Av=22dB
Q4606
Q4616
RN1441
RN1441
C4762 103J
NJM4580M-D
5
7
Q4504B
Q4617
6
C4607
Q4607
RN1441
C_OUT
47/50
R4637
RN1441
R4647 100
C
R4765
1.5K
120
R4641
FL
C4601
100
R4631
120
47/50
NM
Q4601
Q4611
RN1441
RN1441
NM
C4600
R4630
Q4600
Q4610
120
RN1441
R4640
47/50
RN1441
FR
100
R4632
R4642
SR/Z3R_OUT
SR/Z3R
100
C_OUT
C4602
120
47/50
FL_OUT
NM
FR_OUT
Q4602
Q4612
RN1441
RN1441
NM
C4603
Q4603
Q4613
SL/Z3L_OUT
47/50
R4633
RN1441
R4643
RN1441
SL/Z3L
100
120
R4644
SBR/Z2R/BiAmpR
100
R4634
C4604
120
NM
47/50
Q4604
Q4614
<AREA-10>
FR_Pre
RN1441
RN1441
NM
C4605
R4635
Q4605
R4645
Q4615
47/50
120
100
RN1441
RN1441
SBL/Z2L/BiAmpL
R4648
RWRH
100
R4638
C4608
120
<AREA-6>
NM
FL_Pre
47/50
Q4618
Q4608
RN1441
RN1441
NM
C4609
R4639
Q4609
Q4619
120
47/50
RN1441
R4649
RN1441
LWLH
100
SR_Pre
SL_Pre
FL_Pre
FR_Pre
220/25
R4524
C4524
NJM4580M-D
22-1/2W
+
2
R4528
1.5K
1
RWRH_Pre
Q4505A
3
SBR_Pre
6
R4527
1.5K
7
Q4505B
R4523
5
22-1/2W
NJM4580M-D
C4523
220/25
SBL_Pre
<AREA-1>
<AREA-2>
1.2K
R4800
LWLH_Pre
R4799
100
1.2K
R4801
Z2TONER
R4798
100
R4924
100K
51
30
MUTE
AVCC
C4812
52
29
AVEE
NC
R4802
223J
0
53
28
NC
TREL
54
27
C4811
R4810
ADCL
BASSL2
4.7K
55
26
473J
Z2TONEL
ADCR
BASSL1
56
25
AGND
NC
C4810
57
24
224J
NC
FRC
58
23
IN-R1
FROUT
59
22
IN-L1
AGND
60
21
IN-R2
FLOUT
61
20
IN-L2
FLC
62
19
Z3RO
INR3
AGND
63
18
INL3
CC
64
17
INR4
COUT
65
16
INL4
AGND
66
15
R2A15218FP
IN-R5
SW-OUT
67
14
IN-L5
SWC
68
13
IN-R6
Q4501
NC
69
12
IN-L6
SRC
70
11
Z3LO
IN-R7
SR-OUT
71
10
IN-L7
AGND
72
9
SBL-OUT
IN-R8
SL-OUT
73
SBLC
8
IN-L8
SLC
74
7
NC
AGND
75
6
INRA/RECR1
SBRC
76
5
Z2L
INLA/RECL1
SBR-OUT
77
4
NC
AGND
78
3
Z2R
IN-R9
79
2
IN-L9
80
1
NC
NC
I
J
K
PREWLMUT
Z3MUT
PRESBMUT
PRESRMUT
Z2MUT
PREFRMUT
10
RWRH
9
16
8
15
SBR/Z2R/BiAmpR
7
14
6
13
SR/Z3R
5
12
4
11
FR
3
10
2
9
C
1
8
8
7
FL
7
6
6
5
SL/Z3L
5
4
4
3
SBL/Z2L/BiAmpL
3
2
2
1
LWLH
1
1
1
1
1
P4519
C
P4512B
1
P4520
P4513B
SW
P4505
C4610
47/50
R4660
R4570
3
Rch
390
Q4620
100
1
FRONT
RN1441
R4571 100
2
Lch
Q4621
D4505
2
1
1SS352
NM
1
2
4
D4515
1SS352
C4611
NM
1
47/50
R4661
RN1441
C4805
102
NM
390
100
2
CENTER
2
1
R4577
D4506
NM
1SS352
3
1
2
D4516
C4612
1SS352
P4506
NM
47/50
R4662
9.2CH
C4806
390
Q4622
NM
102
PRE OUT
PRESRMUT
P4507
RN1441
R4572
9
Rch
Q4623
100
7
SURR
C4613
47/50
R4663
RN1441
R4573
8
Lch
390
100
C4614
47/50
R4664
R4574
6
Rch
100
390
Q4624
PRESBMUT
4
SB or SB/FW
RN1441
R4575
5
Lch
Q4625
100
C4615
47/50
R4665
RN1441
R4576
3
Rch
390
100
1
SUBWOOFER
C4618
47/50
R4668
R4678
R4526
2
Lch
100
120
Q4628
100
Q4638
D4507
1
2
NM
1SS352
2
1
10
D4517
NM
1SS352
RN1441
RN1441
NM
C4807
102
Q4629
Q4639
11
P4508
P4509
C4619
R4578
9
Rch
RN1441
RN1441
47/50
R4669
R4679
100
120
100
7
FH/FW
<AREA-4>
for only 708
R4579
8
Lch
100
R4700
100
C4620
R4680
47/50
R4590
1K
6
Rch
Q4630
100
RN1441
4
ZONE 2
Q4631
RN1441
R4591
5
Lch
100
C4621
R4681
R4701
<AREA-3>
1K
100
47/50
R4610 100
3
Rch
C4630
R4720
R4730
1K
100
1
47/50
ZONE 3
R4611
100
2
Z3MUT
Lch
D4518
2
1
Q4640
1SS352
RN1441
NM
1
2
10
D4508
Q4641
1SS352
RN1441
NM
C4808
NM
102
C4631
R4721
R4731
1K
100
47/50
<AREA-5>

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