Onkyo TXSR-304 Service manual
TX-SR304/304E
A
SCHEMATIC DIAGRAMS-1
AUDIO INPUT SECTION
P5001
(Screw therminal)
1
P5500
SR
SW
2
3
P5002
R
R
R
R
R
R
R
R
SL
C
9
7
8
L
6
4
5
L
3
1
2
L
10
6
4
5
L
P5003
3
1
2
L
7
6
4
5
L
P5004
3
1
2
L
7
9
7
8
L
P5005
6
4
5
3
1
2
10
3
2
1
P5006
1
RI
CD_IN
TAPE_OUT
2
TAPE_IN
VIDEO3_IN
3
VIDEO2_IN
VIDEO1_OUT
VIDEO1_IN
4
DVD_IN
MULTI_IN
5
SW preout
*
A
R5500
330
R5002
330
R5001
330
R5006
330
R5005
330
R5010
330
R5009
330
R5014
330
R5013
330
R5018
330
R5017
330
R5022
330
R5021
330
R5026
330
R5025
330
R5101
330
R5100
330
R5104
330
R5103
330
R5105
330
R5102
330
R5285
100
R5008
C5051
C5052
C5053
R5111
R5110
R5114
R5113
R5115
R5112
C5054
473K
R5275
R5004
R5003
R5007
R5012
R5011
R5016
R5015
R5020
R5019
R5024
R5023
R5028
R5027
100K
100K
100K
100K
100K
100K
100K
100K
100K
100K
100K
100K
100K
100K
100K
100K
100K
100K
100K
100K
100K
C5004
C5003
C5008
C5007
C5012
C5011
C5016
C5015
C5020
C5019
C5024
C5023
C5028
C5027
C5111
C5110
C5114
C5113
C5115
C5112
C5275
BCDEFGH
NAAF-8745
MDD ,MDC
HT-R340
1A
HT-R340
HT-R340
TX-SR304
TX-SR304E
TX-SR404
TX-SR8440
1A 1B 1C 1E 1F
47u/50 2.2u/50
220k 2.2k
A
MWT
,MPA ,MGK
MPP
MDD ,MDC
MPP
MGR
MGR
1B
1C
1E
1F
Destination table
C5215
R5205
J6114
J6116
To NAAF-8745 (2/2)
Model No. TX-SR304
SCHEMATIC DIAGRAM (Part-2)
ASP SECTION
221J
221J
NC
NC
221J
221J
221J
221J
221J
221J
NC
NC
221J
221J
221J
221J
221J
221J
221J
221J
221J
R5029
R5030
100K
100K
C5304
C5303
1SS133
D5500
TA_L
TA_R
V1_OUTL
V1_OUTR
V3_L
V3_R
V2_L
V2_R
V1_L
V1_R
DVD_L
DVD_R
NC
NC
10K
R5304
R5901
10K
R5303
R5902
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
TA_OUTL
CD_R
TA_OUTR
67
65
66
INL9
INR9
INLA/RECL1
INRA/RECR1
INL8
INR8
INL7
INR7
INL6
INR6
INL5
INR5
INL4
INR4
INL3
INR3
INL2
INR2
INL1
INR1
AVEE
CLOCK
DATA
DGND
SUBL
MONO
38
40
39
CD_L
68
SUBR
37
AD_R
ADCR
TU_R
69
INR11/RECL5
INRB/RECR2
ADCL
36
AD_L
C513047/16
+
TU_L
DAC_L
73
70
71
FLIN174FRIN1
RECR372RECL3
INL11/RECL5
INLB/RECL2
INL10/RECL4
INR10/RECR4
Q5001
R2S15211FP
(Botom view)
FLIN2
SLIN2
FRIN2
SRIN2
32
34
35
33
MULTI_SR
MULTI_SL
C5131
47/16
47/16
+
+
+
47/16
C5135
C5132
DAC_C
DAC_R
DAC_SW
76
75
CIN1
SWIN2
CIN2
29
30
31
MULTI_C
MULTI_SW
47/16
+
C5133
DAC_SL
77
SLIN178SRIN1
SWIN1
BASS_R1
BASS_R2
SBLIN2
SBRIN2
28
47/16
+6.90V
+
C5134
DAC_SR
79
SBLIN1
1-OUT
AGND
2-OUT
SBRIN1
3-OUT
AGND
4-OUT
5-OUT
AGND
6-OUT
FLOUT
AGND
FROUT
BASS_L1
BASS_L2
TRE_L
AVCC
TRE_R
26
27
823J
C5034
C5036 223J
R5042
FLC
FRC
SYS_IN
TU_GND
CODEC_GND
S3_GND
AMUTE
VOL_CLK
VOL_DAT
-6.92V
R5301
100(1/2W)
R5302
100(1/2W)
SROUT
C5235
47/50
C5210
47/50
C5211
47/50
C5212
47/50
C5213
47/50
C5214
47/50
*
C5215
R5235 47K
LOUT
80
1
1-C
2
3
4
5
2-C
6
3-C
7
8
9
10
4-C
11
5-C
12
13
14
15
6-C
16
17
18
19
20
21
22
23
24
25
C5032 474J
1.8K
47/25
C5202
+
47/25
C5205
+
47/25
C5203
+
47/25
C5204
+
47/25
C5200
+
47/25
C5201
+
474J
C5031
C5033
C5035
+
C5301
470/25
D5001
MTZJ6.8B
C5302
+
470/25
D5002
MTZJ6.8B
7
Q5003:A
NJM4580M-D
NJM4580M-D
Q5003:B
1
823J
223J
C5141
330J
R5147
10K
R5141
10K
R5142
10K
R5148
10K
C5142
330J
R5041
1.8K
8
4
R5145
10K
R5143
R5149
1.2K
470
6
5
3
2
R5144
R5150
1.2K
470
R5146
10K
ROUT
COUT
SLOUT
C5245 221J
1.2K
R5245
R5202
R5203
R5204
R5255
*
15K
R5200
R5201
220K
220K
220K
R5205
R5210
2.2K
220K
220K
R5211
2.2K
R5212
2.2K
R5213
2.2K
R5214
2.2K
R5215
270
3
2
5
6
Q5200
RN1441
Q5201
RN1441
Q5202
RN1441
Q5203
RN1441
Q5204
RN1441
Q5205
RN1441
Q5002:A
8
NJM4580M-D
1
R5265
4
10K
C5255
103K
Q5002:B
NJM4580M-D
7
R5220
R5221
R5222
R5223
R5224
R5225
100
R5216
NC
NC
NC
NC
NC
RN1441
Q5210
NC
Q5211
NC
Q5212
NC
Q5213
NC
Q5214
NC
Q5215
C5206
C5207
+
+
220K
220/25
220/25
R5206
22
R5207
22
J6116
*
J6114
*
A_GND
S1_GND
A_+12V
A_-12V
TU_L
TU_R
AD_R
AD_L
DAC_R
DAC_L
DAC_SR
DAC_SL
DAC_SW
DAC_C
SR_SW
SR_SW
L
R
C
SL
TX-SR304/304E
A
SCHEMATIC DIAGRAMS-1
AUDIO INPUT SECTION
P5001
(Screw therminal)
1
P5500
SR
SW
2
3
P5002
R
R
R
R
R
R
R
R
SL
C
9
7
8
L
6
4
5
L
3
1
2
L
10
6
4
5
L
P5003
3
1
2
L
7
6
4
5
L
P5004
3
1
2
L
7
9
7
8
L
P5005
6
4
5
3
1
2
10
3
2
1
P5006
1
RI
CD_IN
TAPE_OUT
2
TAPE_IN
VIDEO3_IN
3
VIDEO2_IN
VIDEO1_OUT
VIDEO1_IN
4
DVD_IN
MULTI_IN
5
SW preout
*
A
R5500
330
R5002
330
R5001
330
R5006
330
R5005
330
R5010
330
R5009
330
R5014
330
R5013
330
R5018
330
R5017
330
R5022
330
R5021
330
R5026
330
R5025
330
R5101
330
R5100
330
R5104
330
R5103
330
R5105
330
R5102
330
R5285
100
R5008
R5007
C5051
C5052
C5053
R5111
R5110
R5114
R5113
R5115
R5112
C5054
473K
R5275
R5004
R5003
R5012
R5011
R5016
R5015
R5020
R5019
R5024
R5023
R5028
R5027
100K
100K
100K
100K
100K
100K
100K
100K
100K
100K
100K
100K
100K
100K
100K
100K
100K
100K
100K
100K
100K
C5004
C5003
C5008
C5007
C5012
C5011
C5016
C5015
C5020
C5019
C5024
C5023
C5028
C5027
C5111
C5110
C5114
C5113
C5115
C5112
C5275
BCDEFGH
221J
221J
NC
NC
221J
221J
221J
221J
221J
221J
NC
NC
221J
221J
221J
221J
221J
221J
221J
221J
221J
R5029
R5030
100K
100K
C5304
C5303
1SS133
D5500
TA_L
TA_R
V1_OUTL
V1_OUTR
V3_L
V3_R
V2_L
V2_R
V1_L
V1_R
DVD_L
DVD_R
NC
NC
10K
R5304
R5901
10K
R5303
R5902
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
TA_OUTL
CD_R
TA_OUTR
67
65
66
INL9
INR9
INLA/RECL1
INRA/RECR1
INL8
INR8
INL7
INR7
INL6
INR6
INL5
INR5
INL4
INR4
INL3
INR3
INL2
INR2
INL1
INR1
AVEE
CLOCK
DATA
DGND
SUBL
MONO
38
40
39
CD_L
68
SUBR
37
AD_R
ADCR
TU_R
69
INR11/RECL5
INRB/RECR2
ADCL
36
AD_L
C513047/16
+
TU_L
DAC_L
73
70
71
FLIN174FRIN1
RECR372RECL3
INL11/RECL5
INLB/RECL2
INL10/RECL4
INR10/RECR4
Q5001
R2S15211FP
(Botom view)
FLIN2
SLIN2
FRIN2
SRIN2
32
34
35
33
MULTI_SR
MULTI_SL
C5131
47/16
47/16
+
+
+
47/16
C5135
C5132
DAC_C
DAC_R
DAC_SW
76
75
CIN1
SWIN2
CIN2
29
30
31
MULTI_C
MULTI_SW
47/16
+
C5133
DAC_SL
77
SLIN178SRIN1
SWIN1
BASS_R1
BASS_R2
SBLIN2
SBRIN2
28
47/16
+6.90V
+
C5134
DAC_SR
79
SBLIN1
1-OUT
AGND
2-OUT
SBRIN1
3-OUT
AGND
4-OUT
5-OUT
AGND
6-OUT
FLOUT
AGND
FROUT
BASS_L1
BASS_L2
TRE_L
AVCC
TRE_R
26
27
823J
C5034
C5036 223J
R5042
FLC
FRC
-6.92V
R5301
100(1/2W)
R5302
100(1/2W)
80
1
1-C
2
3
4
5
2-C
6
3-C
7
8
9
10
4-C
11
5-C
12
13
14
15
6-C
16
17
18
19
20
21
22
23
24
25
C5032 474J
1.8K
47/25
C5202
+
47/25
C5205
+
47/25
C5203
+
47/25
C5204
+
47/25
C5200
+
47/25
C5201
+
474J
C5031
C5033
C5035
+
C5301
470/25
D5001
MTZJ6.8B
C5302
+
470/25
D5002
MTZJ6.8B
7
Q5003:A
NJM4580M-D
NJM4580M-D
Q5003:B
1
823J
223J
C5141
330J
R5147
10K
R5141
10K
R5142
10K
R5148
10K
C5142
330J
R5041
1.8K
8
4
R5145
10K
R5143
1.2K
6
5
3
2
R5144
1.2K
R5146
10K
TX-SR304/304E
LOUT
ROUT
COUT
SLOUT
SROUT
C5235
47/50
C5210
47/50
C5211
47/50
C5212
47/50
C5213
47/50
C5214
47/50
*
C5215
R5235 47K
C5245 221J
1.2K
R5245
R5202
R5203
R5204
R5255
R5200
R5201
220K
220K
220K
R5205
*
15K
R5210
2.2K
220K
220K
R5211
2.2K
R5212
2.2K
R5213
2.2K
R5214
2.2K
R5215
270
3
2
5
6
Q5200
RN1441
Q5201
RN1441
Q5202
RN1441
Q5203
RN1441
Q5204
RN1441
Q5205
RN1441
Q5002:A
8
NJM4580M-D
1
R5265
4
10K
C5255
103K
Q5002:B
NJM4580M-D
7
R5220
R5221
R5222
R5223
R5224
R5225
100
R5216
NC
NC
NC
NC
NC
RN1441
Q5210
NC
Q5211
NC
Q5212
NC
Q5213
NC
Q5214
NC
Q5215
C5206
C5207
+
+
220K
220/25
220/25
R5206
22
R5207
22
SYS_IN
TU_GND
CODEC_GND
S3_GND
AMUTE
VOL_CLK
VOL_DAT
NAAF-8745
HT-R340
1A
HT-R340
1B
HT-R340
1C
TX-SR304
1E
TX-SR304E
1F
TX-SR404
TX-SR8440
MDD ,MDC
MWT
,MPA ,MGK
MPP
MDD ,MDC
MPP
MGR
MGR
Destination table
1A 1B 1C 1E 1F
47u/50 2.2u/50
A_GND
S1_GND
A_+12V
A_-12V
C5215
R5205
J6114
J6116
220k 2.2k
A
To NAAF-8745 (2/2)
TU_L
TU_R
AD_R
AD_L
DAC_R
DAC_L
DAC_SR
DAC_SL
DAC_SW
DAC_C
L
R
C
SL
SR_SW
J6116
*
J6114
*
SR_SW
10K
1.2K
1.2K
10K
R5149
470
R5150
470
Model No. TX-SR304
SCHEMATIC DIAGRAM (Part-2)
ASP SECTION
TX-SR304/304E
A
SCHEMATIC DIAGRAMS-2
POWER AMPLIFIER SECTION
1
2
NAAF-8745 (2/2)
MDD ,MDC
HT-R340
1A
HT-R340
HT-R340
TX-SR304
TX-SR304E
TX-SR404
TX-SR8440
NC
NC
D6008
D6007
334J
C6006
*
NC
C6202
MWT
MPP
MDD ,MDC
C6201
100V
C6007
JL9001A
1B
1C
1E
1F
NC
C6009
1
S1H+
2
3
4
5
6
7
8
P6006
(Crimp Assy)
Connected to
P.Trans pin
,MPA,MGK
MPP
MGR
MGR
NC
334J
100V
C6005
*
334J
334J
C6008
F6001A
F6002AF6002B
*
*
F6001
F6002
D6001
D5SBA20
2
4
2F6001B
4
BCDEFGH
*
(with Heatsink)
G
Q6103
RN1402
1
3
1
D6002
3
D5SBA20
(with Heatsink)
47K
R6406
Q6104
RN2402
R6401
R6903
R6403
56K
R6405
+
C6001
*
+
C6002
*
P6005
(Bus Bar)
+
C6003
+
C6004
Q6102
2SC2240-GR
10K
10K
R6402
1K
R6404
Q6101
2SA970-GR/BL
5600/35
5600/35
10K
-52.8V
J6414
NF_GND
B_GND
R6501
E6001
J6413
+52.8V
220K
J6415
R6502
+25.9V
-25.9V
220K
1
+VH
+VL
C6402
101J
D6003
MTZJ15C
R6201
R6062
+
+
C6103
0.22(2W)
C6101
100/63
C6102
100/63
47/50
+
STK413-220A
C6120
R6050
R6052
R6020
56K
+
47/25
C6010
C6020
471J
1K
R6010
L
1K
C6042
1K
300D
+
C6030
R6030
NC
C6040
300D
R6040
56K
R6042
56K
1.5K
220/35
C6022
471J
R6022
R6901
J6412
56K
+
C6032
R6032
C6012
C6122
1.5K
+
47/25
R6012
C
220/35
(with Heatsink)
Q6001
COMP+
COMP-
-VL6-VH7SUB_G8OUT1+9OUT1-10OUT2-11OUT2+12-VA13+VA14IN115FB116BIAS17FB218IN219IN320FB321OUT3+22OUT3-
C6403
101J
(1W)
3.3k
(1W)
3.3k
R6202
J6279
D6004
R6905
MTZJ15C
33K
R6203
R6060
R6204
100
(1W)
R6205
100
(1W)
0.22(2W)
H
R6412
R6902
R6061
47K
0.22(2W)
R6409
1K
Q6108
RN2402
R6407
C6121
NC
C6041
300D
NC
R6041
R6051
56K
1K
+
C6031
220/35
Q6107
1.5K
R6031
RN1402
R6021
56K
+
47/25
C6011
C6021
471J
1K
R6011
1K
R
Q6106
2SC2240-GR
10K
10K
R6408
10K
R6410
Q6105
2SA970-GR/BL
J6416
R6411
33K
R6413
Q6110
PC817X
Q6109
RN1401
56K
R6414
Q6002
+VH
1
MTZJ15C
J6409
J6408
220
C6401
+VL3COMP+4COMP-
D6005
D6006
MTZJ15C
(1W)
R6206
3.3k
R6207
J6410
J6411
103J
(1W)
3.3k
Destination table
A
1E
1F1C1B1A
B
C
3
D
E
F
SP_GND
PH_GND
22K
Q6010
R6070
2SC2240-GR
5.6K
R6080
C6050
472K
D6010
R6090
NC
CRSLL
R6092
NC
22K
33K
Q6011
R6102
R6071
2SC2240-GR
NC
5.6K
472K
R6081
C6051
D6011
R6091
NC
22K
33K
Q6013
R6101
R6073
2SC2240-GR
NC
5.6K
472K
R6083
C6053
33K
22K
R6100
Q6012
R6072
2SC2240-GR
NC
5.6K
472K
C6052
R6082
D6012
R6103
33K
R6075
2SC2240-GR
R6085
SW(SR)
22K
Q6015
5.6K
C6055
472K
R6105
33K
R6074
R6084
D
SR(none)
22K
Q6014
2SC2240-GR
5.6K
472K
C6054
*
33K
R6104
J6176
J6190
P6001
STK412-220ASTK413-220AQ6002
NTM-12PDML NTM-10PDML
C6001
10000u63 568200u
C6002
F6001
F6002
C6080
C6081
C6082
C6083
C6084
C6085
C6086
C6087
C6005
C6016
HG
R6905
4
J6279
J6410
J6411
NAETC-8746
5
R9051
0.22
(1/2W)
R9052
1
(1W)
*
104J
100V
C6016
R9053
1
To Power transformer Secondary
(1W)
R9054
8.2
(1/2W)
104J
C9051
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
125V10A 125V8A
102J
334J/100V
104J/100V
JL9001B
JL9002B
102J472J 472J
334J
100VC6006
POFF
1
+10VS
2
+12VD
3
JL9003A
D_GND
4
POWERD
5
*
R9503
F
1
to NAPS-8769
JL9002A
R9504
1
S2-1
1
S2-2
2
S3-1
3
4
S3-G
S3-2
5
6
FAC2
FAC1
7
D9010
1SS133
D9011
1SS133
D9002
RN1N4003
D9004
RN1N4003
C9503
+
220/50
C9507
D9006
RN1N4003
D9013
RN1N4003
RN1N4003
1/50
+
D9007
RN1N4003
MTZJ4.7C
100K
R9508
D9003
D9005
RN1N4003
+
C9504
220/63
D9012
22
R9501
(1/2W)
D9001
D3SBA20
D9008
2.2K
R9505
4
C9501
C9502
+
C9505
MTZJ36D
Q9501
2SA970-GR/BL
2
3
Q9502
KRC105M
+
1000/35
+
470/35
10/50
R9502 330K
+11.0V
+
D9009
1
RN1N4003
4700/16
C9001
4.7
R9015
(1/2W)
VIDEO_GND
+23V(Audio)
AVR_GND(Audio)
-23V(Audio)
10/50
+
C9506
-VP
4.20Vac
+23V(RLY)
RLY_GND
-36.7V
+24.7V
-26.0V
D_GND
R9011
0.22
(1/2W)
POFF
POFF2
POW_RLY
R9001
6.8
(1W)
C9002
+
R9003
(2W)
R9002
(1W)
22/50
12
56
1
C9003
Q9006
AN34060A
(with Heatsink)
MODE25V3VCC4GND53.3V6NC72.5V
+
+
22/50
22/50
C9004
2SA1930
Q9003
R9009
15
(1/2W)
+
10/50
C9010
+
10/50
C9012
+
C9005
R9008
270
22/50
R9012
2
R9013
R9006
R9007
220
Q9001
TA7812S
1
I
G
2
1
G
I3O
Q9002
TA79012S
(2W)
(2W)
O
+2.52V
+3.30V
+5.10V
(2W)
220
(2W)
220
(2W)
220
47K
47K
+12.1V
R9005
3
R9004
+
10/50
C9011
+
10/50
C9013
-12.0V
TX-SR304/304E
Q6004
D6024
*
R6024
+
C6024
*
L_OUT
R_OUT
C_OUT
SL_OUT
R6124
C
C6124
300D
R6044
+
56K
C6014
471J
1K
R6014
J6176
NC
NC
C6044
56K
C6034
47/25
*
B
220/35
1.5K
R6034
1
R6054
1K
LM61CIZ
G
NAETC-8747
Q6901
LM61CIZ
1
3
V
C6905
C6106
+
R6121
NC NC
+
104Z
NC
47/50
C6110
47K
R6112
D6033
NC
C6904
R6053
1K
R6055
R6023
56K
+
C6013
C6023
471J
1K
R6013
100/50
SL
NC
R6122
NC
D6022
R6214
R6216
MTZJ5.1B
(no use)
C6123
1K
C6033
R6033
47/25
47K
R6113
D6023
47K
220K
C6125
NC
NC
C6043
300D
R6043
56K
C6045
300D
R6045
56K
+
+
C6035
220/35
220/35
1.5K
1.5K
R6035
R6025
56K
47/25
+
C6015
C6025
471J
1K
R6015
SR_SW
47K
R6125
R6115
R6123
R6114 47K
NCNCNCNCNC
D6025
G
O
1
NC
2
2
3
P6006
COMP-5-VL6-VH7SUB_G8OUT1+9OUT1-10OUT2-11OUT2+12-VA13+VA14IN115FB116BIAS17FB218IN219IN320FB321OUT3+22OUT3-
4
D6006
MTZJ15C
33K
0.22(2W)
R6208
Q6023
2SC2240-GR
D6031
R6211
33K
Q6022
1SS133
C6090
R6063
R6209
100
(1W)
R6210
100
(1W)
C6107
47K
R6110
D6032
+
100/16
+
100/63
D6020
1SS133
R6215
C6108
R6065
+
C6104
100/63
+
C6105
100/63
+
100/63
47K
R6120
R6111
NC NC
D6021
10K
R6213
Q6021
2SA1163-BL
+
NC
C6091
0.22(2W)
C6109
100/50
+
C6093
1/50
(1W)
J6411
(1W)
R6207
3.3k
33K
R6104
2SC2240-GR
V
O
2
0.22(2W)
R6064
D_+2.5V
D_+3.3V
D_+5V
(with Heatsink)
3
NC
C6903
NC
C6902
L
5
4
R
2
R6130
4.7
L6000
473J
C6060
3uH
8.2
(1W)
R6140
R6131
4.7
L6001
473J
C6061
3uH
8.2
(1W)
R6141
R6132
4.7
L6002
473J
C6062
3uH
8.2
(1W)
R6142
R6133
4.7
473J
C6063
L6003
3uH
8.2
(1W)
R6143
R6134
4.7
473J
C6064
L6004
3uH
8.2
R6135
4.7
3uH
R6144
C6065
R6145
D_GND
(1W)
473J
8.2
(1W)
R6302
THERMAL
J6190
*
L6005
*
A
3
6 1
RL6001
1SS133
D6051
C6111
103J C6116 103K
C
5
4
2
3
6 1
RL6002
1SS133
D6052
C6112
103J
SL
5
4
SR
2
3
6 1
RL6003
L(SPB)
5
4
R(SPB)
2
3
6 1
RL6005
D6055
1SS133
C6115
103J
SW
5
4
2
3
6 1
RL6004
27
(1W)
DTC123JKA
Q6053
SPB_RLY
DTC123JKA
Q6052
S_RLY
DTC123JKA
Q6051
F_RLY
KRC105M
Q6054
HP_RLY
390
390
56
R6251
R6252
R6301
(1/2W)
(1/2W)
(1/2W)
HP_L
HP_R
D6056
12345
12345
THERMAL
HP_RLY
POW_RLY
POFF
POFF2
F_RLY
S_RLY
SPB_RLY
5
2
6 1
RL6006
1SS133
6
6
AMUTE
VOL_CLK
VOL_DAT
SYS_IN
4
3
*
*
*
*
*
*
E
*
*
JL6001B
JL6001A
C6080
C6081
C6082
C6083
C6084
C6085
C6086
C6087
102J
102J
102J
102J
102J
102J
102J
102J
*
P6001
C6070
C6071
C6072
C6073
C6074
C6075
*
P6002
103J
103J
103J
103J
103J
103J
P6500
P6501
14
7
1
8
2
9
3
10
4
11
5
12
6
13
5
4
2
3
1
6
10
11
12
13
14
15
16
17
18
19
20
1
2
3
4
5
6
1
2
3
4
5
6
7
8
9
HP_L
HP_R
P301
HP_G
-VP
FAC2
FAC1
TERMAL
VOLH
P302
PROTECT
HP_RLY
APOWER
POFF
POFF2
F_RLY
S_RLY
SPB_RLY
A_MUTE
VOL_CLK
VOL_DAT
SYS_IN
+10VS
D_GND
D_GND
VIDEO_GND
VIDEO_GND
VIDEO_+12V
L
R
C
SL
SR
SW
L
R
Speaker output
Speaker B output
+12.1V
-12.0V
A_+12V
A_-12V
S1_GNDLCRSL
D_GND
S3_GND
To NAAF-8745 (1/2)
SR_SW
SR_SW
DAC_C
DAC_SL
DAC_SW
DAC_L
DAC_R
DAC_SR
A_GND(EVOL_GND)
AD_L
AD_R
TU_R
TU_GND
TU_L
VOL_DAT
VOL_CLK
AMUTE
SYS_IN
CODEC_GND
VIDEO_12V
VIDEO_+12V
DAC_SR
DAC_SL
DAC_SW
DAC_C
DAC_R
DAC_L
AD_L
AD_R
TU_L
TU_R
TU_GND
1
D_+2.5V
2
P303
D_+3.3V
3
D_+5V
4
CODEC_GND
5
CODEC_GND
6
DAC_SR
7
DAC_SL
8
DAC_SW
9
DAC_C
10
DAC_R
11
DAC_L
12
EVOL_GND
13
A_-12V
14
A_+12V
15
AD_L
16
AD_R
17
TU_+12V
18
TU_L
19
TU_R
20
TU_GND
Model No. TX-SR304
SCHEMATIC DIAGRAM (Part-3)
PA SECTION
To NADG-8756
TX-SR304/304E
A
SCHEMATIC DIAGRAMS-2
POWER AMPLIFIER SECTION
1
2
3
4
5
NAAF-8745 (2/2)
MDD ,MDC
HT-R340
1A
HT-R340
HT-R340
TX-SR304
TX-SR304E
TX-SR404
TX-SR8440
NC
NC
D6008
D6007
334J
C6006
*
NC
C6202
MWT
MPP
MDD ,MDC
C6201
100V
C6007
JL9001A
1B
1C
1E
1F
NC
C6009
1
S1H+
2
3
4
5
6
7
8
P6006
(Crimp Assy)
Connected to
P.Trans pin
Destination table
A
B
C
D
E
F
J6176
J6190
P6001
NTM-12PDML NTM-10PDML
C6001
10000u63 568200u
C6002
F6001
F6002
C6080
C6081
C6082
C6083
102J
C6084
C6085
C6086
C6087
C6005
C6016
HG
R6905
J6279
J6410
J6411
NAETC-8746
1
2
3
JL9001B
4
5
6
7
8
R9051
0.22
(1/2W)
(1W)
R9053
1
(1W)
R9054
(1/2W)
*
C6016
104J
100V
C9051
104J
1
2
3
JL9002B
4
5
6
7
R9052
1
To Power transformer Secondary
8.2
,MPA,MGK
MPP
MGR
MGR
D6001
D5SBA20
NC
334J
100V
C6005
*
*
334J
334J
F6001
C6008
F6001A
F6002AF6002B
*
F6002
125V10A 125V8A
334J/100V
104J/100V
BCDEFGH
G
47K
R6406
Q6104
RN2402
Q6103
RN1402
2
1
4
3
2F6001B
1
4
D6002
3
D5SBA20
(with Heatsink)
1E
1F1C1B1A
STK412-220ASTK413-220AQ6002
102J472J 472J
334J
100VC6006
POFF
1
+10VS
2
+12VD
3
JL9003A
D_GND
4
POWERD
5
*
R9503
F
1
to NAPS-8769
JL9002A
R9504
1
S2-1
1
S2-2
2
S3-1
3
4
S3-G
S3-2
5
6
FAC2
FAC1
7
R6401
R6903
R6403
56K
R6405
+
*
+
*
P6005
(Bus Bar)
+
C6003
+
C6004
D9010
1SS133
D9011
1SS133
D9002
RN1N4003
D9004
RN1N4003
C9503
+
220/50
Q6102
2SC2240-GR
10K
10K
1K
Q6101
2SA970-GR/BL
C6001
C6002
5600/35
5600/35
+
1/50
C9507
D9006
RN1N4003
D9013
RN1N4003
RN1N4003
R6402
R6404
RN1N4003
D9007
10K
-52.8V
R9508
RN1N4003
C9504
J6414
NF_GND
B_GND
100K
D9003
D9005
+
E6001
J6413
+52.8V
220K
R6501
D9012
MTZJ4.7C
220/63
R9501
22
(1/2W)
J6415
R6502
+25.9V
-25.9V
D9001
D3SBA20
D9008
2.2K
R9505
220K
SP_GND
PH_GND
+VH
1
MTZJ15C
2
4
3
Q9502
KRC105M
+
C9501
1000/35
+
C9502
470/35
+
10/50
C9505
MTZJ36D
R9502 330K
Q9501
2SA970-GR/BL
C6103
R6062
0.22(2W)
+
C6101
100/63
+
C6102
100/63
33K
R6072
2SC2240-GR
R6082
47/50
22K
5.6K
+
Q6012
C6052
STK413-220A
C6120
R6050
R6052
R6020
56K
+
47/25
C6010
C6020
471J
1K
R6010
L
CRSLL
NC
472K
R6092
NC
D6012
POFF
1K
C6042
1K
R6102
300D
C6030
R6030
33K
NC
C6040
300D
R6040
56K
R6042
56K
+
220/35
1.5K
C6022
471J
R6901
J6412
22K
Q6011
R6071
2SC2240-GR
5.6K
472K
R6081
C6051
D6011
POFF2
POW_RLY
R9001
6.8
(1W)
R6022
(with Heatsink)
Q6001
+VL
COMP+
COMP-
-VL6-VH7SUB_G8OUT1+9OUT1-10OUT2-11OUT2+12-VA13+VA14IN115FB116BIAS17FB218IN219IN320FB321OUT3+22OUT3-
C6403
C6402
101J
101J
(1W)
3.3k
D6004
D6003
R6202
(1W)
R6905
R6201
3.3k
J6279
+11.0V
+
D9009
1
4700/16
C9001
R9015
10/50
+
C9506
-VP
4.20Vac
MTZJ15C
33K
R6203
22K
R6070
2SC2240-GR
5.6K
R6080
C6050
RN1N4003
4.7
(1/2W)
+23V(RLY)
RLY_GND
VIDEO_GND
+23V(Audio)
AVR_GND(Audio)
-23V(Audio)
-36.7V
Q6010
+24.7V
R6060
R6204
472K
D6010
-26.0V
0.22(2W)
100
(1W)
R6205
100
(1W)
R6090
NC
D_GND
NC
R9011
0.22
(1/2W)
R6100
56K
+
C6032
R6032
C6012
R6091
C9002
47/25
R6012
NC
C6121
C6041
300D
NC
C6122
R6041
56K
+
220/35
1.5K
R6021
56K
+
+
C6011
C6021
471J
1K
R6011
1K
R
C
33K
R6101
R6073
2SC2240-GR
NC
R6083
Q9006
AN34060A
MODE25V3VCC4GND53.3V6NC72.5V
1
+
+
22/50
22/50
C9003
R9003
12
(2W)
C9010
R9002
C9012
56
(1W)
C6031
R6031
47/25
22K
Q6013
5.6K
+
+
220/35
1.5K
NC
R6051
1K
Q6107
RN1402
472K
C6053
(with Heatsink)
+
22/50
C9004
2SA1930
Q9003
R9009
15
(1/2W)
10/50
10/50
R6412
R6902
R6061
47K
+
C9005
0.22(2W)
33K
R6103
22/50
R9012
R9013
R9006
220
Q9001
TA7812S
1
I
2
I3O
Q9002
TA79012S
R9008
270
H
R6409
1K
Q6108
RN2402
22K
R6075
2SC2240-GR
5.6K
R6085
220
220
220
R9007
(2W)
O
G
2
1
G
(2W)
Q6106
2SC2240-GR
R6407
10K
R6408
10K
R6410
Q6105
2SA970-GR/BL
J6416
33K
R6413
Q6110
PC817X
Q6109
RN1401
SW(SR)
Q6015
472K
C6055
(2W)
(2W)
(2W)
3
NAETC-8747
Q6901
LM61CIZ
1
3
C6905
+
+
NC NC
104Z
NC
47/50
+
R6013
C6110
100/50
SL
47K
R6112
D6022
D6033
MTZJ5.1B
C6904
R6053
R6055
R6023
C6013
C6023
1K
R6214
R6216
NC
1K
1K
56K
47/25
471J
NC
R6122
NC
47K
220K
A_-12V
C6123
47K
R6113
S3_GND
(no use)
NC
C6043
300D
R6043
56K
C6045
300D
R6045
56K
+
C6035
C6033
220/35
1.5K
R6033
R6025
56K
C6025
471J
47K
R6125
R6115
R6123
NCNCNCNCNC
D6023
D6025
A_+12V
S1_GNDLCRSL
C6125
NC
+
R6035
47/25
C6015
1K
R6015
R6114 47K
D_GND
220/35
1.5K
+
SR_SW
D6024
G
V
O
1
NC
2
2
3
P6006
*
(with Heatsink)
Q6002
+VH
+VL3COMP+4COMP-5-VL6-VH7SUB_G8OUT1+9OUT1-10OUT2-11OUT2+12-VA13+VA14IN115FB116BIAS17FB218IN219IN320FB321OUT3+22OUT3-
1
D6005
D6006
MTZJ15C
MTZJ15C
10K
R6411
56K
R6414
+
+
R6105
C9011
C9013
33K
10/50
10/50
220
+2.52V
+3.30V
+5.10V
J6409
J6408
C6401
SR(none)
22K
Q6014
R6074
2SC2240-GR
5.6K
R6084
D
47K
R9004
103J
R6206
J6410
C6054
*
47K
R9005
472K
(1W)
3.3k
J6411
(1W)
R6207
3.3k
33K
R6104
2SC2240-GR
+12.1V
-12.0V
33K
R6208
Q6023
2SC2240-GR
D6031
R6211
33K
Q6022
1SS133
C6090
R6063
R6209
100
(1W)
R6210
100
(1W)
C6107
47K
R6110
D6032
+
100/16
0.22(2W)
+
100/63
C6108
D6020
1SS133
R6215
R6065
+
C6104
100/63
+
C6105
100/63
+
100/63
47K
R6120
R6111
NC NC
D6021
10K
R6213
Q6021
2SA1163-BL
+
NC
C6091
C6106
0.22(2W)
C6109
100/50
+
R6121
C6093
1/50
To NAAF-8745 (1/2)
*
R6024
+
C6024
J6176
*
L_OUT
R_OUT
C_OUT
SL_OUT
NC
R6124
C
C6124
300D
R6044
+
56K
C6014
471J
1K
R6014
NC
C6044
56K
C6034
R6034
47/25
*
B
SR_SW
R6054
220/35
1.5K
DAC_C
SR_SW
LM61CIZ
1
1K
DAC_SW
Q6004
G
2
R6064
DAC_SL
3
V
O
NC
C6903
0.22(2W)
D_+2.5V
D_+3.3V
D_+5V
DAC_L
DAC_SR
(with Heatsink)
DAC_R
NC
C6902
AD_L
AD_R
TU_R
TU_L
A_GND(EVOL_GND)
TU_GND
J6190
*
*
VOL_CLK
VOL_DAT
R6130
4.7
L6000
3uH
R6131
4.7
L6001
3uH
R6132
4.7
L6002
3uH
R6133
4.7
L6003
3uH
R6134
4.7
L6004
3uH
R6135
4.7
L6005
3uH
A
AMUTE
SYS_IN
CODEC_GND
C6060
R6140
C6061
R6141
C6062
R6142
C6063
R6143
C6064
R6144
C6065
R6145
D_GND
473J
8.2
473J
8.2
473J
8.2
473J
8.2
473J
8.2
8.2
473J
(1W)
(1W)
(1W)
(1W)
(1W)
(1W)
L
5
4
R
2
3
6 1
RL6001
1SS133
D6051
C6111
103J C6116 103K
C
5
4
2
3
6 1
RL6002
1SS133
D6052
C6112
103J
SL
5
4
SR
2
3
6 1
RL6003
L(SPB)
5
4
R(SPB)
2
3
6 1
RL6005
D6055
1SS133
C6115
103J
SW
5
4
2
3
6 1
RL6004
27
(1W)
R6302
DTC123JKA
Q6053
THERMAL
SPB_RLY
DTC123JKA
Q6052
S_RLY
DTC123JKA
Q6051
F_RLY
VIDEO_12V
KRC105M
Q6054
HP_RLY
VIDEO_+12V
390
390
56
R6251
(1/2W)
R6252
(1/2W)
R6301
(1/2W)
12345
12345
HP_L
5
HP_R
2
6 1
D6056
THERMAL
HP_RLY
POW_RLY
POFF
POFF2
F_RLY
S_RLY
SPB_RLY
AMUTE
VOL_CLK
VOL_DAT
SYS_IN
RL6006
1SS133
6
6
DAC_SR
DAC_SL
DAC_SW
DAC_C
DAC_R
DAC_L
AD_L
AD_R
4
3
*
*
*
*
*
*
E
*
*
JL6001B
JL6001A
C6080
C6081
C6082
C6083
C6084
C6085
C6086
C6087
102J
102J
102J
102J
102J
102J
102J
102J
*
P6001
*
C6070
C6071
C6072
C6073
C6074
C6075
P6002
103J
103J
103J
103J
103J
103J
P6500
P6501
14
7
1
8
2
9
3
10
4
11
5
12
6
13
5
4
2
3
1
6
TU_L
TU_R
TU_GND
L
R
C
SL
SR
SW
L
R
1
HP_L
2
HP_R
P301
3
HP_G
4
-VP
5
FAC2
6
FAC1
1
TERMAL
2
VOLH
P302
3
PROTECT
4
HP_RLY
5
APOWER
6
POFF
7
POFF2
8
F_RLY
9
S_RLY
10
SPB_RLY
11
A_MUTE
12
VOL_CLK
13
VOL_DAT
14
SYS_IN
15
+10VS
16
D_GND
17
D_GND
18
VIDEO_GND
19
VIDEO_GND
20
VIDEO_+12V
1
D_+2.5V
2
P303
D_+3.3V
3
D_+5V
4
CODEC_GND
5
CODEC_GND
6
DAC_SR
7
DAC_SL
8
DAC_SW
9
DAC_C
10
DAC_R
11
DAC_L
12
EVOL_GND
13
A_-12V
14
A_+12V
15
AD_L
16
AD_R
17
TU_+12V
18
TU_L
19
TU_R
20
TU_GND
Model No. TX-SR304
SCHEMATIC DIAGRAM (Part-3)
PA SECTION
Speaker output
Speaker B output
To NADG-8756
TX-SR304/304E
A
SCHEMATIC DIAGRAMS-3
DSP & MICROPROCESSOR SECTION
29282726252423222120191817161514131211
HPIN
HP_L
HP_R
1
HP_R
6
HP_L
5
GND_HP
4
-VP
3
FAC2
2
FAC1
1
P301A
To NAAF-8745
To NAAF-8745
2
To NAAF-8745
3
P302A
E151
NC
P303A
THERMAL
20
VOLH
19
PROTECT
18
HPRL
17
APOWER
16
POFFV
15
POFF2
14
SPRLF
13
SPRLCS
12
SPRLB
11
AMUT
10
VOLCLK
9
VOLDAT
8
SYSIN
7
+10VS
6
5
4
3
GND_VIDEO
2
+12V_VIDEO
1
+2.5V_DSP
20
+3.3V_DSP
19
+5V_DSP
18
GND_DAC
17
16
DAC_SR
15
DAC_SL
14
DAC_SW
13
DAC_C
12
DAC_FR
11
DAC_FL
10
9
-12V
8
+12V
7
LTAD
6
RTAD
5
+12V_TU
4
TU_L
3
TU_R
2
GNDTU
1
1
4
5
GND_HP
R451
R452
4.7
4.7
C451
RTAD
LTAD
+
220/16
BCDEFGH
To TUNER UNIT
P7001A
To NADIS-8767
FAC1
FAC2
-VP
VOLA
LEDSTBY
+
220/16
C452
VOLB
NC
R332
R331
10K
10K
Q403:A
NJM4580M-D
NJM4580M-D
Q403:B
Q402:A
NJM4580M-D
NJM4580M-D
Q401:A
NJM4580M-D
NJM4580M-D
Q401:B
KEYINT3
C331
7
1
7
Q402:B
1
7
1
KEYINT1
KEYINT2
C332 101J
R334
10K
NJM4580M-D
2
Q331:B
3
NJM4580M-D
4
5
6
8
R333
10K
101J
8
6
5
4
3
2
8
6
5
4
3
2
8
6
5
4
3
2
KEYINT0
Q331:A
C416
C426
C425
C415
C414
C424
C423
C413
C412
C422
C421
C411
987654321
10
KEY3
KEY1
KEY0
KEY2
+5.6S
FLDSDO
1
7
0
R341
R448
681J
4.7K
R436
180
472J
R447
C406
180
4.7K
681J
R435
R446
4.7K
681J
R434
180
472J
R445
C405
180
4.7K
681J
R433
R444
4.7K
R432
153J
180
333J
R443
C404
180
4.7K
R431
103J
R442
4.7K
R430
681J
180
472J
R441
C403
180
681J
4.7K
R429
R440
681J
4.7K
R428
180
R439
472J
C402
180
4.7K
R427
681J
R438
4.7K
R426
681J
180
R437
472J
C401
180
681J
4.7K
R425
FLDCLK
+10VS
0
R342
R424
470
R423
470
R422
470
R421
470
R420
470
R419
470
R418
470
R417
470
R416
470
R415
470
R414
470
R413
470
To NAVD-8768
REMIN
FLDCS
FLDRST
D335
D333
D337
D331
C336
2 1
22/50
R338
+
0
C334
56
22/50
R336
+
R335
+
56
C333
22/50
R337
+
0
C335
22/50
2 1
100/10(VX)
R412
3.3K
R411
3.3K
R410
3.3K
R409
3.3K
R408
3.3K
R407
3.3K
R406
3.3K
R405
3.3K
R404
3.3K
R403
3.3K
R402
3.3K
R401
3.3K
123456789
P2011
COAX
+12V_VIDEO
+5V_DSP
2 1
2 1
2 1
NC
D336
D334
D338
D332
2 1
2 1
2 1
C308
104Z
C305
+
C309 NC
+
C304
100/16
C310
104Z
L303
BLM21PG221SN1
VMUTV1
VMUT
VMUTV3
GND_VIDEO
3.9K
R340
3.9K
R339
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
470/6.3
470/6.3
L302
+
+
BLM21PG221SN1
C303
C302
P101A
123456789
10
11
VCTRLB
VCTRLA
Q101
222J
C338
DIRRST_3.3V
DIRCS_3.3V
DIRINT0_3.3V
222J
C337
220
220
R318 220
R316
R317
10
15
13
16
12
14
11
INT1
AINL-
_RST
AINR-
AINL+
VQ
AINR+
FLT+
REFGND
AOUTB4ÂAOUTB4+
AOUTA4+
AOUTA4ÂVA
AGND1
AOUTB3ÂAOUTB3+
AOUTA3+
AOUTA3ÂAOUTB2-
33
222K
C311
CS/AD0
CS42518
Q301
CS42516-CQZ(R)-D
AOUTB2+:31
AOUTA2+:32
AOUTA2-34AOUTB1-35AOUTB1+36AOUTA1+37AOUTA1-38MUTEC39LPFLT40AGND241VARX42RXP7/GP743RXP6/GP644RXP5/GP545RXP4/GP446RXP3/GP347RXP2/GP248RXP1/GP1
2.7K
R325
473K
C312
C104
+8.9V
3
1
2SC1815
2
R101
330
DSPCLK_3.3V
DSPSDI_3.3V
DSPSDO_3.3V
220
220
220
R313
R314
R315
9
6
7
8
VLC
CDIN/AD1
CCLK/SCL
CDOUT/SAD
64:CX_SDIN2
63:CX_SDIN3
62:CX_SDIN4
50:TXP
49:RXP0
330J
104Z
C313
C321
PLLSCL
PLLSDA
104Z
C101
100/16
1 2
C307
5
4
DGND1
220
330J
R321
C322
OPT1
STEREO
+
HZU10B
D101
104Z
3
VD1
CX_SDOUT
SAI_SDOUT
220
R322
COAX
SD
+9V_TUNER
2
1
CX_SCLK
CX_LRCK
SAI_SLCK
SAI_LRCK
OMCK
ADCIN1
ADCIN2
RMCK
DGND2
C323 330J
OPT2
TU_L
GNDTU
R311
33
64
63
CX_SDIN1
62
61
60
59
58
57
56
55
54
53
VLS
52
51
VD2
50
49
220
R323
101112
13
TU_R
RDSDAT
RDSCLK
+
C103
100/16
1A 1B 1C 1D 1E 1F 1H
NO YES NO NO NO
C720
R610
R620
R710
R720
R721
R312
33
L311
LM182
R310
R309
R308
R307
R306
33
R305
R304
R303
R302
R301
C306
+
C301
470/6.3
L301
BLM21PG221SN1
33
33
33
33
L306
LM182
33
33
33
L305
33
LM182
33
104Z
Q191
BD7820
_SHUT2INPUT3GND4OUTPUT5DAJ
1
100/16
+
C191
1 2
D192
NC
NO NO
NO YES NO NO NOD720
NO NO
YES YES YES NO YES YES NO
YESNONONOYESNONO
NO YES NO NO NOR621 NO NO
NO NO NO YES NO NO YES
NO NO NO YES NO NO YES
NO NO NO NO
DSPSDO2
DSPSDO3
DSPSDO1
BCK
LRCK
ADCSDO
DSPMCK
DIRSDO
0
R194
39K
39K
R192
R191
100/16
+
33K
C192
R193
10k10k220k
BLM21PG221SN1
+1.19V
TX-SR304/304E
NADG-8756
NONONONO
000 000 000
NONONONO
000 000 000
NONONONO
000 000 000
NONO
10k 10k33k 33k NO
10k 10k 10k 10k 10k56k 56k
NO
NONONO
NONONO
NONO
R610
*
R620
*
R609
27K
C778
102K
81
82
83
84
P04/AN04/D4
85
P03/AN03/D3
86
P02/AN02/D2
87
P01/AN01/D1
88
P00/AN00/D0
89
P107/AN7/KI3
90
P106/AN6/KI2
91
P105/AN5/KI1
92
P104/AN4/KI0
93
P103/AN3
94
P102/AN2
95
P101/AN1
96
AVSS
97
P100/AN0
98
Vref
99
AVcc
100
P97/ADTRG/SIN4
0
0
10K
HPIN
VMUTV1
10K
R678
VOLA
1K
1
Q705
RN1404
VOLB
R7791KR780
79
2
Q772
RN2402
HPIN
1K
R778
P11/D980P10/D8
3
1K
R703
VCTRLB
2 3
SD
220
R777
77
P13/D1178P12/D10
4
1K
R704
VCTRLA
10K
10K
1
D772
REMIN
STEREO
220
220
R776
R775
75
76
P14/D12
P15/D13/INT3
P07/AN07/D7
P06/AN06/D6
P05/AN05/D5
P91/TB1IN/SIN3
5
6
VMUTV1B
VMUTV3B
1
10K
R770
R771 56K
R769
R768
2 3
****
1SS355
1 2
SYSOUT
SYSIN
NC
R774
74
P16/D14/INT4
P90/TB0IN/CLK3
7
THERMAL
47K
R766
1K
R773
INT3
BAND
INT1
INT2
R767
67
68
69
70
71
72
73
P17/D15/INT5
P20/AN20/A0(/D0/-)
P24/AN24/A4(/D4/D3)
P23/AN23/A3(/D3/D2)
P22/AN22/A2(/D2/D1)
P21/AN21/A1(/D1/D0)
Q701
M3062LFGPFP
P96/ANEX1/SOUT4
P95/ANEX0/CLK4
P94/DA1/TB4IN
P93/DA0/TB3IN
BYTE9CNVSS10P87/XCIN11P86/XCOUT12RESET13XOUT14VSS15XIN16VCC117P85/NMI18P84/INT219P83/INT120P82/INT021P81/TA4IN/U22P80/TA4OUT/U
8
RESET
220K
R7101KR721
**
R618
220K
X701
CSTCR6M0055-R0
CNVSS
RDSDAT
1
Q706
NC
3 2
R668
0
*
R669
0
*
R670
0
*
R671
33K
*
VOLH
PROTECT
NC
104Z
C767
1K
104Z
C762
R765
66
65
64
63
62
VSS
VCC2
P30/A8(/-/D7)
P27/AN27/A7(/D7/D6)
P26/AN26/A6(/D6/D5)
P25/AN25/A5(/D5/D4)
P92/TB2IN/SOUT3
P76/TA3OUT25P75/TA2IN/W26P74/TA2OUT/W
P73/CTS2/RTS2/TA1IN/V
P72/CLK2/TA1OUT/V
10K
R617
104Z
C716
POFF
1K
10K
R718
104Z
R720
C718
D718
1SS355
1 2
RDSCLK
POFFV
VMUT
VMUTV3
SPRLF
VOLDAT
VOLCLK
APOWER
220
220
10K
R666
59
P33/A1160P32/A1061P31/A09
P44/CS0
P45/CS1
P46/CS2
P47/CS3
P71/RXD2/SCL2/TA0IN/TB5IN
P70/TXD2/SDA2/TA0OUT
P64/CTS1/RTS1/CTS0/CLKS1
P77/TA3IN
23
104Z
R7231KR621
C720
***
D720
1SS355
*
DIRINT0
POFF2
R754
P50/WRL/WR
P51/WRH/BHE
P53/BCLK
P54/HLDA
P55/HOLD
P57/RDY/CLKOUT
P60/CTS0/RTS0
P61/CLK0
P62/RXD0/SCL0
P63/TXD0/SDA0
P65/CLK1
P66/RXD1/SCL1
P67/TXD1/SDA1
24
27
1K
10K
R727
DSPINT0
2 3
R753
P52/RD
P56/ALE
28
29
0
R729
PLLSCL
VMUTB
1
R751
51
30
R730 0
PLLSDA
Q728
RN1404
1K
R750
50
49
R748
48
P43/A1952P42/A1853P41/A1754P40/A1655P37/A1556P36/A1457P35/A1358P34/A12
47
46
R745
45
R744
44
R743
43
R742
42
R741
41
R740
40
R739
39
R738
38
37
36
35
R734
34
R733
33
R732
32
R731
31
C730 101J
C729
101J
R630
2.2K
R629
2.2K
1K
1K
220
220
220
220
10K
220
220
220
ROMSCL
ROMSDA
33
33
33
33
R643 NC
10K
R631
10K
R632
10K
R646
SPRLCS
SPRLB
AMUTB
DIGSDO
DIGSDI
DIGCLK
DSPRST
DSPCS
DIRPDN
DIRCS
AMUT
C750
474K
C749
474K
R749
1A HT-R340 MDD,MDC
1B HT-R340 MWT
1C HT-R340 MPA,MGK
1D HT-R340 MPP
1E TX-SR304 MDD,MDC
1F TX-SR404 MGR,TX-SR8440 MGR
1SS355
P701A
1
2
3
4
5
6
7
8
9
1H TX-SR304E MPP
1A 1B 1C 1D 1E 1F 1H
R668
R669
R670
R671
R768
10k 10k 10k 10k
R769
10k 10k 10k 10k
R770
10k 10k 10k 10k
R771
1K
Q748
RN2402
213
312
Q747
RN1404
+
C748
1/50
2.2K
R747
R647
10K
D747
2 1
RESET
CNVSS
FRXD
FCLK
+VCC
FBUSY
FTXD
APOWER
TO FLASH WRITER
2.2K
R635
C735
R636
VCC
WP
SCL
C791NCC792NCC789NCC795
+
C703
+
2
I3O
8
7
6
NC
C790
L701
NCH-1479
100/16
D712
1SS355
1
G
R736
R735
2.7K
R696
102K
C797
2 1
2.7K
102K
2.2K
R695
2.7K
R694
102K
C794
100
100
+
C713
2.7K
R693
102K
C793
C704
1
+
RN1404
4.7/50
ROMSCL
ROMSDA
D773
HZU5.1B
R789
R790
R791
R792
R793
R794
R795
4.7K
100/16
Q712
+4.9V
220K
R673
R781
1K
4.7K
4.7K
4.7K
4.7K
4.7K
4.7K
4.7K
R797
C798
104Z
47K
104Z
R612
C712
2 3
STEREO
SD
27K
R676
R677
104
1
A0
2
A1
3
A2
4
GND5SDA
Q735
S-24CS16A0I-J8V1G
HPRL
LEDSTBY
FLDSDO
FLDCLK
FLDCS
FLDRST
KEYINT3
KEYINT2
KEYINT1
KEYINT0
KEY3
KEY2
KEY1
KEY0
10k10k220k
C702
100/16
Q702
S-812C50AUA-C3E
220
220
L202
BLM21PG221SN1
C228
104Z
C230
104Z
C231
104Z
C232
104Z
R213
R214
C235
104Z
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
C227
VDDEXT
GND
VDDINT
GND
DAI_P10
DAI_P11
DAI_P12
DAI_P13
DAI_P14
DAI_P15
VDDINT
GND
GND
DAI_P16
DAI_P17
DAI_P18
DAI_P19
VDDINT
GND
GND
VDDEXT
DAI_P20
GND
VDDINT
FLAG2
FLAG3
VDDINT
GND
VDDINT
GND
VDDINT
GND
VDDINT
GND
VDDINT
VDDINT
72
VDDINT
GND
109
104Z
VDDINT
110
C236
104Z
C272
104Z
104Z
C224
C223
54
117
GND
VDDINT
118
62
61
GND
DAI_P463DAI_P564DAI_P665DAI_P7
GND
VDDINT
119
120
C244
101J
60
121
R221
1K
DSPRST_3.3V
58
56
59
GND
DAI_P257DAI_P3
VDDINT
VDDEXT
Q201
ADSP-21266
RESET
SPIDS
GND
VDDINT
SPICLK
122
123
124
125
R222
R22610K
R223
220
220
DSPCLK_3.3V
DSPCS_3.3V
53
55
GND
DAI_P1
VDDINT
MISO
MOSI
GND
126
127
128
R224
R225
C238
220
220
104Z
DSPSDO_3.3V
DSPSDI_3.3V
VDDINT
129
51
AD952AD8
VDDEXT
130
C239
104Z
66
68
70
67
69
GND
GND
DAI_P871DAI_P9
VDDINT
VDDINT
GND
VDDINT
GND
VDDINT
GND
VDDEXT
111
112
113
114
115
116
131
C241
49
AVDD
132
102K
AD1150AD10
AVSS
48
GND
GND
133
C220
45
47
46
AD12
VDDINT
CLKOUT
EMU
134
135
136
56
R231
L231
LM182
2
13579
104Z
44
GND
VDDEXT
TDO
TDI
137
138
P201
TRST
39
40
41
38
RD
ALE
AD1542AD1443AD13
VDDEXT
VDDEXT
VDDEXT
BOOTCFG1
BOOTCFG0
CLKCFG1
CLKCFG0
VDDINT
TCK
TMS
GND
CLKIN
139
140
141
142
143
R251
1M
120J
C210
1210864
JTAGNC
11
13 14
104Z
C219
37
GND
36
VDDINT
35
VDDINT
34
WR
AD0
33
AD1
32
GND
31
30
AD2
29
AD3
28
GND
27
VDDINT
26
AD4
25
AD5
24
AD6
23
VDDINT
22
GND
21
20
GND
19
VDDINT
18
GND
17
AD7
16
FLAG1
15
FLAG0
14
GND
13
VDDINT
12
GND
11
VDDINT
10
GND
9
VDDINT
8
GND
7
6
GND
5
4
3
2
1
XTAL
VDDEXT
144
L201
BLM21PG221SN1
C243104Z
C242103Z
X201
24.576MHz
120J
C209
+
2
C204
FLAG0_3.3V
C218
104Z
C217
104Z
C215
104Z
C214
104Z
R210
R209
C213
104Z
C212
104Z
C211
104Z
220/6.3
220
220
DIRINT0_3.3V
10K
10K
R212
R211
10K
10K
R20810K
R206
R204
R2030R207
R205
0
0
NC
10K
R202
R201
0
DIRPDN
DIRCSDIRRST_3.3V
DSPCS
DSPRST
DIGCLK
DIGSDO
10
GND
Q271
TC74VHC541FT
Y812Y713Y614Y515Y416Y317Y218Y119_G220VCC
11
DIRCS_3.3V
OPT2
OPT1
DSPCS_3.3V
DSPRST_3.3V
DSPSDO_3.3V
DSPCLK_3.3V
2
1
A13A24A35A46A57A68A79A8
_G1
BLM21PG221SN1
DIRINT0
104Z
C271
DIRINT0_3.3V
DSPSDI_3.3V
FLAG0_3.3V
R131
220
R132
220
L131
+
C131
100/16
SCHEMATIC DIAGRAM MODEL NO. TX-SR304/304E/404/8440/HT-R340 (PART-4)
DSP,CODEC,CPU SECTION
DSPINT0
DIGSDI
1
2
3
4
5
6
7
TC74HCT7007AF
1
OUT
3
VCC
104Z
2
C132
GND
GP1FAV51RKF5
1
OUT
3
VCC
104Z
2
C133
GND
GP1FAV51RKF5
104Z
OUT6
OUT5
GND8OUT4
Q272
U131
U132
VCC
IN6
IN5
IN4
14
13
12
11
10
9
OPT2
OPT1
DIGITAL IN
TX-SR304/304E
A
SCHEMATIC DIAGRAMS-3
DSP & MICROPROCESSOR SECTION
29282726252423222120191817161514131211
HPIN
HP_L
HP_R
1
HP_R
6
HP_L
5
GND_HP
4
-VP
3
FAC2
2
FAC1
1
P301A
To NAAF-8745
To NAAF-8745
2
To NAAF-8745
3
P302A
E151
NC
P303A
THERMAL
20
VOLH
19
PROTECT
18
HPRL
17
APOWER
16
POFFV
15
POFF2
14
SPRLF
13
SPRLCS
12
SPRLB
11
AMUT
10
VOLCLK
9
VOLDAT
8
SYSIN
7
+10VS
6
5
4
3
GND_VIDEO
2
+12V_VIDEO
1
+2.5V_DSP
20
+3.3V_DSP
19
+5V_DSP
18
GND_DAC
17
16
DAC_SR
15
DAC_SL
14
DAC_SW
13
DAC_C
12
DAC_FR
11
DAC_FL
10
9
-12V
8
+12V
7
LTAD
6
RTAD
5
+12V_TU
4
TU_L
3
TU_R
2
GNDTU
1
1
4
5
GND_HP
R451
R452
4.7
4.7
C451
RTAD
LTAD
+
220/16
BCDEFGH
NADG-8756
NONONONO
NONONONO
NONONONO
NONO
10k 10k33k 33k NO
10k 10k 10k 10k 10k56k 56k
DIGITAL IN
000 000 000
000 000 000
000 000 000
NONONO
NONONO
NO
NONO
To NADIS-8767
FAC1
FAC2
-VP
VOLA
LEDSTBY
+
220/16
C452
VOLB
NC
R332
R331
10K
10K
Q403:A
NJM4580M-D
NJM4580M-D
Q403:B
Q402:A
NJM4580M-D
NJM4580M-D
Q401:A
NJM4580M-D
NJM4580M-D
Q401:B
KEYINT3
C331
7
1
7
Q402:B
1
7
1
KEYINT1
KEYINT2
C332 101J
R334
10K
NJM4580M-D
2
Q331:B
3
NJM4580M-D
4
5
6
8
R333
10K
101J
8
6
5
4
3
2
8
6
5
4
3
2
8
6
5
4
3
2
KEYINT0
Q331:A
C416
C426
C425
C415
C414
C424
C423
C413
C412
C422
C421
C411
987654321
10
KEY3
KEY1
KEY0
KEY2
+5.6S
FLDSDO
1
7
0
R341
R448
681J
4.7K
R436
180
472J
R447
C406
180
4.7K
681J
R435
R446
4.7K
681J
R434
180
472J
R445
C405
180
4.7K
681J
R433
R444
4.7K
R432
153J
180
333J
R443
C404
180
4.7K
R431
103J
R442
4.7K
R430
681J
180
472J
R441
C403
180
681J
4.7K
R429
R440
681J
4.7K
R428
180
R439
472J
C402
180
4.7K
R427
681J
R438
4.7K
R426
681J
180
R437
472J
C401
180
681J
4.7K
R425
P7001A
FLDCS
FLDCLK
+10VS
0
R342
R424
470
R423
470
R422
470
R421
470
R420
470
R419
470
R418
470
R417
470
R416
470
R415
470
R414
470
R413
470
To NAVD-8768
P2011
REMIN
FLDRST
D335
D333
D337
D331
C336
2 1
2 1
22/50
R338
+
0
C334
56
22/50
R336
+
R335
+
56
C333
22/50
R337
D332
+
0
C335
22/50
R412
3.3K
R411
3.3K
R410
3.3K
R409
3.3K
R408
3.3K
R407
3.3K
R406
3.3K
R405
3.3K
R404
3.3K
R403
3.3K
R402
3.3K
R401
3.3K
2 1
2 1
100/10(VX)
123456789
COAX
VMUTV3
+12V_VIDEO
GND_VIDEO
+5V_DSP
2 1
2 1
NC
D336
D334
D338
2 1
2 1
C308
104Z
C305
+
C309 NC
+
C304
100/16
C310
104Z
470/6.3
L303
L302
BLM21PG221SN1
BLM21PG221SN1
C303
To TUNER UNIT
P101A
10
11
VMUTV1
VCTRLB
VMUT
VCTRLA
+8.9V
3
Q101
2SC1815
2
R101
330
3.9K
222J
R340
C338
DIRRST_3.3V
DSPCLK_3.3V
DSPSDI_3.3V
DSPSDO_3.3V
DIRCS_3.3V
DIRINT0_3.3V
222J
C337
15
16
14
AINL-
AINL+
AINR+
AOUTB2+:31
AOUTA2+:32
AOUTA2-34AOUTB1-35AOUTB1+36AOUTA1+37AOUTA1-38MUTEC39LPFLT40AGND241VARX42RXP7/GP743RXP6/GP644RXP5/GP545RXP4/GP446RXP3/GP347RXP2/GP248RXP1/GP1
33
C311
220
220
220
220
220
R313
R318 220
R314
R315
R316
R317
9
7
8
10
13
12
11
INT1
_RST
AINR-
CS/AD0
CDIN/AD1
CDOUT/SAD
64:CX_SDIN2
63:CX_SDIN3
62:CX_SDIN4
CS42518
Q301
CS42516-CQZ(R)-D
49:RXP0
2.7K
104Z
R325
473K
C312
C313
+
R339
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
470/6.3
+
C302
3.9K
VQ
FLT+
REFGND
AOUTB4ÂAOUTB4+
AOUTA4+
AOUTA4ÂVA
AGND1
AOUTB3ÂAOUTB3+
AOUTA3+
AOUTA3ÂAOUTB2-
222K
123456789
STEREO
SD
PLLSCL
PLLSDA
104Z
C104
C101
100/16
1
+
1 2
HZU10B
D101
104Z
C307
6
5
2
3
4
VD1
VLC
DGND1
CX_SCLK
CX_LRCK
CCLK/SCL
SAI_SLCK
SAI_LRCK
ADCIN1
ADCIN2
CX_SDOUT
SAI_SDOUT
50:TXP
DGND2
220
220
330J
330J
R321
C321
C323 330J
C322
R322
COAX
OPT1
TU_L
GNDTU
+9V_TUNER
R311
33
1
64
63
CX_SDIN1
62
61
60
59
OMCK
58
57
56
55
RMCK
54
53
VLS
52
51
VD2
50
49
220
R323
OPT2
101112
13
TU_R
RDSDAT
RDSCLK
+
C103
100/16
1A 1B 1C 1D 1E 1F 1H
NO YES NO NO NO
C720
R610
R620
R710
R720
R721
R312
33
L311
LM182
R310
R309
R308
R307
R306
33
R305
R304
R303
R302
R301
C306
+
C301
470/6.3
L301
BLM21PG221SN1
33
33
33
33
L306
LM182
33
33
33
L305
33
LM182
33
104Z
Q191
BD7820
_SHUT2INPUT3GND4OUTPUT5DAJ
1
100/16
+
C191
1 2
D192
NC
NO NO
NO YES NO NO NOD720
NO NO
YES YES YES NO YES YES NO
YESNONONOYESNONO
NO YES NO NO NOR621 NO NO
NO NO NO YES NO NO YES
NO NO NO YES NO NO YES
NO NO NO NO
DSPSDO2
DSPSDO3
DSPSDO1
BCK
LRCK
ADCSDO
DSPMCK
DIRSDO
0
R194
39K
39K
R192
R191
100/16
+
33K
C192
R193
+1.19V
10k10k220k
L202
BLM21PG221SN1
HPRL
LEDSTBY
FLDSDO
FLDCLK
FLDCS
FLDRST
KEYINT3
KEYINT2
KEYINT1
KEYINT0
KEY3
KEY2
KEY1
KEY0
C228
104Z
C230
104Z
C231
104Z
C232
104Z
R213
220
R214
220
C235
104Z
C735
104
1
2
3
4
8
A0
VCC
7
A1
WP
6
A2
SCL
GND5SDA
Q735
S-24CS16A0I-J8V1G
NC
C791NCC792NCC789NCC795
C790
L701
NCH-1479
+
C703
100/16
1
+
G
C702
100/16
2
I3O
Q702
S-812C50AUA-C3E
C227
72
73
VDDINT
74
VDDEXT
75
GND
VDDINT
76
GND
77
DAI_P10
78
DAI_P11
79
DAI_P12
80
DAI_P13
81
DAI_P14
82
DAI_P15
83
VDDINT
84
GND
85
GND
86
DAI_P16
87
DAI_P17
88
DAI_P18
89
DAI_P19
90
VDDINT
91
GND
92
GND
93
VDDEXT
94
DAI_P20
95
GND
96
VDDINT
97
FLAG2
98
FLAG3
99
VDDINT
100
GND
101
VDDINT
102
GND
103
VDDINT
104
GND
105
VDDINT
106
GND
VDDINT
107
VDDINT
108
GND
109
R635
R636
R736
R735
2.7K
102K
C797
2 1
D712
1SS355
104Z
VDDINT
110
104Z
C236
R696
70
111
DAI_P871DAI_P9
GND
2.2K
2.7K
R695
102K
69
112
2.2K
100
100
2.7K
R694
102K
C794
+
C713
68
GND
VDDINT
VDDINT
GND
113
2.7K
R693
102K
C793
C704
+
4.7/50
67
114
ROMSCL
D773
4.7K
100/16
1
Q712
RN1404
+4.9V
66
GND
VDDINT
VDDINT
GND
115
ROMSDA
HZU5.1B
R781
R789
R790
R791
R792
R793
R794
R795
R797
C798
104Z
2 3
R677
VDDEXT
GND
116
117
1K
104Z
C712
SD
27K
104Z
VDDINT
118
R673
4.7K
4.7K
4.7K
4.7K
4.7K
4.7K
4.7K
62
119
DAI_P463DAI_P564DAI_P665DAI_P7
GND
220K
*
*
47K
R612
STEREO
R676
104Z
61
GND
VDDINT
120
C244
101J
27K
C224
60
121
R221
1K
DSPRST_3.3V
VOLA
1K
C778
102K
81
82
83
84
P04/AN04/D4
85
P03/AN03/D3
86
P02/AN02/D2
87
P01/AN01/D1
88
P00/AN00/D0
89
P107/AN7/KI3
90
P106/AN6/KI2
91
P105/AN5/KI1
92
P104/AN4/KI0
93
P103/AN3
94
P102/AN2
95
P101/AN1
96
AVSS
97
P100/AN0
98
Vref
99
AVcc
100
P97/ADTRG/SIN4
1
R610
0
R620
0
10K
R609
Q705
RN1404
HPIN
VMUTV1
10K
R678
C223
58
56
59
GND
DAI_P257DAI_P3
VDDINT
VDDEXT
Q201
ADSP-21266
RESET
SPIDS
GND
VDDINT
SPICLK
122
123
124
125
R222
R22610K
R223
220
220
DSPCLK_3.3V
DSPCS_3.3V
Q772
RN2402
SD
HPIN
VOLB
STEREO
1K
220
220
R776
R7791KR780
R778
R777
76
79
P11/D980P10/D8
2
3
4
5
1K
1K
R704
R703
VCTRLA
VCTRLB
VMUTV1B
1
2 3
54
53
55
GND
DAI_P1
VDDINT
MISO
MOSI
GND
126
127
128
129
R224
R225
C238
220
220
104Z
DSPSDO_3.3V
DSPSDI_3.3V
10K
10K
1
D772
REMIN
220
R775
75
P14/D1277P13/D1178P12/D10
P15/D13/INT3
P07/AN07/D7
P06/AN06/D6
P05/AN05/D5
P91/TB1IN/SIN3
6
VMUTV3B
51
AD952AD8
VDDINT
VDDEXT
130
C239
104Z
10K
R668
0
*
R770
R771 56K
R769
R768
2 3
1SS355
1 2
SYSIN
NC
47K
R774
R773
73
74
P17/D15/INT5
P16/D14/INT4
P90/TB0IN/CLK3
BYTE9CNVSS10P87/XCIN11P86/XCOUT12RESET13XOUT14VSS15XIN16VCC117P85/NMI18P84/INT219P83/INT120P82/INT021P81/TA4IN/U22P80/TA4OUT/U
7
8
49
AD1150AD10
AVDD
AVSS
131
132
102K
C241
****
SYSOUT
INT3
BAND
INT1
INT2
68
69
70
71
72
P20/AN20/A0(/D0/-)
P24/AN24/A4(/D4/D3)
P23/AN23/A3(/D3/D2)
P22/AN22/A2(/D2/D1)
P21/AN21/A1(/D1/D0)
Q701
M3062LFGPFP
P96/ANEX1/SOUT4
P95/ANEX0/CLK4
P94/DA1/TB4IN
P93/DA0/TB3IN
RESET
220K
R7101KR721
**
R618
220K
X701
CSTCR6M0055-R0
CNVSS
RDSDAT
1
Q706
NC
3 2
104Z
C220
45
44
47
46
48
GND
GND
AD12
VDDINT
VDDEXT
GND
CLKOUT
EMU
TDO
TDI
133
134
135
136
137
56
R231
L231
LM182
2
13579
R669
0
*
R670
0
*
R671
33K
*
VOLH
PROTECT
THERMAL
NC
R766
104Z
C767
1K
1K
104Z
C762
R765
R767
66
67
65
64
63
62
VSS
VCC2
P30/A8(/-/D7)
P27/AN27/A7(/D7/D6)
P26/AN26/A6(/D6/D5)
P25/AN25/A5(/D5/D4)
P92/TB2IN/SOUT3
P76/TA3OUT25P75/TA2IN/W26P74/TA2OUT/W
P73/CTS2/RTS2/TA1IN/V
10K
R617
104Z
C716
POFF
10K
R718
104Z
C718
D718
1SS355
1 2
POFFV
VMUTV3
39
40
41
38
RD
ALE
GND
AD1542AD1443AD13
VDDINT
VDDEXT
VDDINT
VDDINT
VDDEXT
VDDINT
VDDINT
VDDINT
VDDINT
VDDEXT
BOOTCFG1
BOOTCFG0
CLKCFG1
CLKCFG0
VDDINT
TRST
TCK
TMS
GND
CLKIN
XTAL
138
139
140
141
142
143
R251
1M
120J
C210
1210864
JTAGNC
11
13 14
P201
1K
R720
RDSCLK
VMUT
C219
37
FLAG1
FLAG0
144
VOLDAT
VOLCLK
APOWER
220
220
10K
R666
R754
R753
55
58
P37/A1556P36/A1457P35/A13
P34/A1259P33/A1160P32/A1061P31/A09
P50/WRL/WR
P44/CS0
P51/WRH/BHE
P45/CS1
P52/RD
P46/CS2
P53/BCLK
P47/CS3
P54/HLDA
P55/HOLD
P56/ALE
P57/RDY/CLKOUT
P60/CTS0/RTS0
P61/CLK0
P62/RXD0/SCL0
P72/CLK2/TA1OUT/V
P71/RXD2/SCL2/TA0IN/TB5IN
P70/TXD2/SDA2/TA0OUT
P63/TXD0/SDA0
P64/CTS1/RTS1/CTS0/CLKS1
POFF2
104Z
VDDINT
WR
AD0
AD1
GND
AD2
AD3
GND
AD4
AD5
AD6
GND
GND
GND
AD7
GND
GND
GND
GND
GND
VDDEXT
C242103Z
24.576MHz
C209
P66/RXD1/SCL1
P67/TXD1/SDA1
P77/TA3IN
23
24
10K
104Z
R7231KR621
C720
***
D720
1SS355
*
DIRINT0
+
2
C218
36
104Z
35
34
33
32
C217
31
104Z
30
29
28
27
26
25
24
23
22
C215
21
104Z
20
C214
19
104Z
18
17
R210
16
R209
15
14
13
12
C213
11
104Z
10
9
8
C212
7
104Z
6
5
4
3
2
C211
1
104Z
L201
BLM21PG221SN1
C243104Z
X201
120J
P65/CLK1
27
1K
R727
DSPINT0
2 3
C204
220/6.3
28
29
0
R729
PLLSCL
VMUTB
1
220
220
SPRLF
1K
R751
51
50
49
48
P43/A1952P42/A1853P41/A1754P40/A16
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
R730 0
C730 101J
C729
R630
R629
PLLSDA
Q728
RN1404
FLAG0_3.3V
DIRINT0_3.3V
10K
R211
10K
R20810K
R206
R205
0
0
10K
R204
R2030R207
R750
R748
R745
R744
R743
R742
R741
R740
R739
R738
R734
R733
R732
R731
10K
R212
101J
2.2K
2.2K
NC
10K
R202
R201
0
1K
1K
220
220
220
220
10K
220
220
220
ROMSCL
ROMSDA
33
33
33
33
R643 NC
10K
R631
10K
R632
SPRLCS
SPRLB
AMUTB
DIGSDO
DIGSDI
DIGCLK
DSPRST
DSPCS
DIRPDN
DIRCS
10K
R646
10
TC74VHC541FT
11
DIRCS_3.3V
R749
1K
AMUT
C749
474K
C750
474K
312
C748
1/50
DIRPDN
DIRCSDIRRST_3.3V
DSPCS
DSPRST
DIGCLK
DIGSDO
1
2
A13A24A35A46A57A68A79A8
DSPSDO_3.3V
DSPCLK_3.3V
_G1
BLM21PG221SN1
GND
Q271
Y812Y713Y614Y515Y416Y317Y218Y119_G220VCC
DSPCS_3.3V
DSPRST_3.3V
OPT2
OPT1
+
1A HT-R340 MDD,MDC
1B HT-R340 MWT
1C HT-R340 MPA,MGK
1D HT-R340 MPP
1E TX-SR304 MDD,MDC
1F TX-SR404 MGR,TX-SR8440 MGR
1H TX-SR304E MPP
1A 1B 1C 1D 1E 1F 1H
1SS355
P701A
R668
R669
R670
R671
R768
10k 10k 10k 10k
R769
10k 10k 10k 10k
R770
10k 10k 10k 10k
R771
1
2
3
4
5
6
7
8
9
Q748
RN2402
213
Q747
RN1404
2.2K
R747
R647
10K
D747
2 1
RESET
CNVSS
FBUSY
APOWER
FRXD
FCLK
+VCC
FTXD
TO FLASH WRITER
C272
DSPINT0
DIGSDI
TC74HCT7007AF
1
OUT
3
VCC
104Z
2
C132
GND
GP1FAV51RKF5
1
OUT
3
VCC
104Z
2
C133
GND
GP1FAV51RKF5
1
2
3
4
5
6
7
GND8OUT4
Q272
104Z
U131
U132
OUT6
OUT5
VCC
IN6
IN5
IN4
14
13
12
11
10
9
OPT2
OPT1
DIRINT0
104Z
C271
DIRINT0_3.3V
DSPSDI_3.3V
FLAG0_3.3V
R131
220
R132
220
L131
+
C131
100/16
SCHEMATIC DIAGRAM MODEL NO. TX-SR304/304E/404/8440/HT-R340 (PART-4)
DSP,CODEC,CPU SECTION
TX-SR304/304E
A
BCDEFGH
SCHEMATIC DIAGRAMS-4
DISPLAY SECTION / POWER SUPPLY SECTION / VIDEO SECTION
NADIS-8767
1
F212F2251G62G73G84G95G106G117G128G139G1410G1511G1612G1713G1814G1915G2016G21P122P223P324P425P526P627P728P829P930P1031P1132P1233P1334P1435P1536P1637P1738P1839P1940P2041P2142P2243P2344P2445P2546P2647P2748P2849P2950P3051P3152P3253P3354P3455P3558F1159F12
1
100K
R7001
Q7003
3
223Z
C7009
2
2SC2458-GR
1
4.9
2
3
NASW-8770
R7302
R7303
470
560
SP A
SP B
S7303
S7304
104J
C7053
PHONES
P7501
5
4
2
3
4
7
8
1
102K
C7503
102K
C7502
GNDTACT
022M
L7502
**
L7501
022M
102K
L7503
*
022M
C7501
S7307
STANDBY
JL7102A
12345
JL7102B
102K
C7504
E7501
KEY0_2
KEYINT0
HPIN
HP_L
GND_HP
HP_R
54321
Q7001
16BT128
49
50
SEG1
51
SEG0
52
VCC2
53
DIG15/SEG39
54
DIG14/SEG38
55
DIG13/SEG37
56
DIG12/SEG36
57
DIG11
58
DIG10
59
DIG9
60
DIG8
61
DIG7
62
DIG6
63
DIG5
64
101J
JL7101B
42
SEG943SEG844SEG745SEG646SEG547SEG448SEG3
SEG2
Q7002
M66005
DIG4
DIG032DIG023DIG014DIG005_RESET6_CS7SCK8SDATA9P110P011VCC112XOUT13XIN14VSS15SEG35
1
101J
101J
C7005
C7006
C7007
C7008101J
7
6
5
4
3
2
1
7
6
5
4
3
2
1
JL7101A
R7005
R7006
R7007
R7008
KEYINT0
HPIN
HP_L
GND_HP
HP_R
R7004
27K
R7301
SEG19
3.3K
3.3K
220
220
101J
C7004
SEG34
C7001
100/16
330
33
SEG1834SEG1735SEG1636SEG1537SEG1438SEG1339SEG1240SEG1141SEG10
SEG20
SEG21
SEG22
SEG23
SEG24
SEG25
SEG26
SEG27
SEG28
SEG29
SEG30
SEG31
SEG32
SEG33
16
+
FLDRST
FLDCS
FLDCLK
FLDSDO
C7020
NC
32
31
30
29
28
27
26
25
24
VP
23
22
21
20
19
18
17
104J
C7002
R7312
R7311
470
330
CD
S7312
S7311S7321S7331
*
MEMORY
TUN UP
R7321
330
R7331
330
*
TUNER
S7322
DIGITAL IN
S7332
PRESET UP
R7322
470
R7332
470
TAPE
DISPLAY
ENTER
S7313
S7323
S7333
C7018
C7019NC
R7012
35.4
*
R7011
220
220
223Z
C7013
R7313
560
R7323
560
R7333
560
PRESET
NC
C7016
220/50
C7017
D7011
C7015
MTZJ8.2C
223Z
C7014
S7324
LIS MODE>
S7334
DOWN
104J
104J
C7052
10K
10K
103Z
C7402 103Z
C7401
220K
C7012223Z
DVD
S7318
*
S7328
TONE-
S7338
TUN MODE
C7010
223Z
C7011
R7328
12K
R7338
12K
C7051
+
220/50
MULTI
TONE
DIMMER
S7319
S7329S7339
+
NC
2.2K
D7201
S7315
*
VIDEO3
S7325
LIS MODE<
S7335
TUN DOWN
LEDSTBY
R7201
STBY
R7211
100
R7315
1.2K
VIDEO2
R7325
1.2K
STEREO
R7335
1.2K
SETUP
S7401
102K
C7213
S7316
S7326
S7336
4
R7212
*
NC
1/50
+
C7003
R7314
820
R7324
820
R7334
820
1.2K
R7403
+
R7316
2.2K
R7326
2.2K
R7336
2.2K
4.9
C7211
10K
1
100/16
VIDEO1
TONE+
RETURN
2
3
2
1
S7317
S7327
S7337
3
*
R7404
R7401
R7402
U7212
10K
L7011
L7012
220K
R7317
3.9K
R7327
3.9K
R7337
3.9K
5
NAETC-8771
To NADG-8756
5
TX-SR304/304E
NAPS-8769
REMIN
FLDCS
KEY0
KEY1
KEY2
KEY3
VOLA
VOLB
HPIN
HP_R
GND_HP
HP_L
1
2
3
P7001B
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
To NADG-8756
22
23
24
25
26
27
28
29
AC IN
T902
1
2
3
456
P901A
AC-H
1
AC-G
2
NAETC-8772
S981
240V
4
1
5
2
6 3
120V
9
8
7
C902 103Z
D925
1SS133
3
1 4
C901
103M/275
W-TYPE
ONLY
D933
1SS133
D935
D951
1SS133
D930
1SS133
D931
1SS133
D921
1SS133
D922
1SS133
D923
1SS133
D924
1SS133
1SS133
P904A
P904B
R934
D952
C951
1SS133
E901
F902 T4AL250V
F901
P905A
P905B
T4AL250V
NC
C921
2
RL901
FLDRST
FLDCLK
FLDSDO
+5.6S
KEYINT0
FAC1
KEYINT1
FAC2
KEYINT2
R7013
-VP
KEYINT3
100
+5VDIS
GNDCPU
LEDSTBY
MW-Type
Only
+
100K
C933
+
C930
+
C922
2200/16
101J
R901
8A 125V
P906A
P906B
F903
Q901 SI-3010KF
R906
R905
100K
4.7/50
33/35
D932
1SS133
2200/35
56(1/2W)
EXCEPT W-TYPE
Vc2Vin3GND4Vout5ADJ
1
100K
+
10/50
C905
R907
82K
+
C907
100/16
D934
10K
R908
MTZJ5.1B
J906
EXCEPT W-TYPE
+11.9
J907
W-TYPE
1
P981
3
5
To power trans. primary
7
9
POFF
+10VS
+12VD
GNDDG
POWERD
1
2
3
JL9003B
4
5
To POWER AMP.
1
P902
P902
2
T901
8
9
10
11
7
5
3
1
1
2
12
13
14
To NAETC-8476
15
16
17
18
19
NAVD-8768
9
VIN4
8
VIN3
7
VCC
6
VIN2
5
GND
4
Q2021
VIN1
LA7956
3
B
2
A
1
VIDEO OUT
P2011A
VCTRLA
1
VCTRLB
2
VMUTV1
3
VMUTMON
4
VMUTV3
5
GND_VIDEO
6
7
+12V_VIDEO
8
COAX
9
+5V_DSP
10
GND_DSP
11
L1011
220K
+11.9
C2022
223Z
+
C2021
47/25
+
C1011
R2014
1
220/6.3
220
Q2005
2 3
312
C1012
1
2
3
4
5
6
7
GND8OUT4
Q1001
TC74HCU04A
Q2002
RN1241
312
KTA1267-GR
DTA114ES
Q2004
223Z
VCC
IN6
OUT6
IN5
OUT5
IN4
312
100K
R2013
14
13
12
11
10
9
R2008
Q2001
RN1241
312
Q2003
DTA114ES
4.9
680K
312
R2012
D2001
C2001
D2002
680K
R2011
680K
R2010
C2014
470/16
C2013
680K
R2009
470/16
NC
Q2114
100K
R1004
C1004 080D
R1005
102K
C2016
+
2.2/50
C2015
+
2.2/50
+
+
2.2/50
C2012
+
2.2/50
C2011
+
10K
NC
R2117
NC
2 1
1 2
R2007
C2002
102K
R2006
75
75
C1003
103J
R1003
100K
R2121
R2122
R2123
7
75
R2005
75
R2004
7
R2003
75
R2002
R2001
2 1
D2121
MTZJ9.1C
R1002
10
75
100K
56
NC
560
6
4
2
6
4
2
P2002
P2001
1 3 5
1 3 5
Q2122
2SC1815
213
101J
R1001
C1002
C1001
223Z
VIDEO-3 IN
VIDEO-2 IN
VIDEO1 OUT
VIDEO1 IN
DVD IN
MONITOR
C2124
+
47/25
C2123
L1001
022M
75
8.4
100/16
3
C2101
102K
9
C2122
+
1/50
R2112
C2121
+
1/50
R2111
C2120
+
2.2/50
R2110
C2119
+
1/50
R2109
C2118
+
1/50
R2108
C2117
+
2.2/50
R2107
C2116
+
1/50
R2106
C2115
+
1/50
R2105
C2114
+
2.2/50
C2102
C2113
+
470/6.3
C2112
+
470/6.3
C2111
+
470/6.3
102K
R2116
75
R2115
75
R2114
75
R2104
6
R2103
R2102
R2101
Q2121
NJM2585L
1
CH1IN1
2
SW1
3
CH1IN2
4
SW2
5
CH1IN3
6
V+
7
CH2IN1
8
GND
9
P1001
1
CH2IN2
10
GND
11
CH2IN312CH3IN3
COAX
+
223Z
C2125
2
22
CH1OUT
21
PS
20
CH2OUT
19
V+
18
CH3OUT
17
GND
16
CH3IN1
15
GND
14
CH3IN2
13
GND
Model No. HT-R340/TX-SR304
SCHEMATIC DIAGRAM PART-5
DISPLAY/VIDEO/POWER SUPPLY SECTION
Q2113
NC
J2112
Q2112
NC
J2111
Q2111
NC
J2113
312
312
312
75
75
75
75
75
75
75
75
75
100K
100K
100K
P2101
3
CR
(PR)
2
CB
(PB)
1
Y
COMPONENT V2
7
CR
(PR)
6
CB
(PB)
5
Y
COMPONENT V1
12
CR
(PR)
11
CB
(PB)
10
Y
13 8 4
P2102
3
2
1
5 4
COMPONENT DVD
CR
(PR)
CB
(PB)
Y
COMPONENT OUT
TX-SR304/304E
A
BCDEFGH
SCHEMATIC DIAGRAMS-4
DISPLAY SECTION / POWER SUPPLY SECTION / VIDEO SECTION
NADIS-8767
1
F212F2251G62G73G84G95G106G117G128G139G1410G1511G1612G1713G1814G1915G2016G21P122P223P324P425P526P627P728P829P930P1031P1132P1233P1334P1435P1536P1637P1738P1839P1940P2041P2142P2243P2344P2445P2546P2647P2748P2849P2950P3051P3152P3253P3354P3455P3558F1159F12
1
100K
R7001
Q7003
3
223Z
C7009
2
2SC2458-GR
1
4.9
2
3
NASW-8770
R7302
R7303
470
560
SP A
SP B
S7303
S7304
104J
C7053
PHONES
P7501
5
4
2
3
4
7
8
1
102K
C7503
102K
C7502
GNDTACT
022M
L7502
**
L7501
022M
102K
L7503
*
022M
C7501
S7307
NAETC-8771
STANDBY
JL7102A
12345
JL7102B
102K
C7504
E7501
KEY0_2
KEYINT0
HPIN
HP_L
GND_HP
HP_R
54321
5
Q7001
16BT128
49
50
SEG1
51
SEG0
52
VCC2
53
DIG15/SEG39
54
DIG14/SEG38
55
DIG13/SEG37
56
DIG12/SEG36
57
DIG11
58
DIG10
59
DIG9
60
DIG8
61
DIG7
62
DIG6
63
DIG5
64
101J
JL7101B
42
SEG943SEG844SEG745SEG646SEG547SEG448SEG3
SEG2
Q7002
M66005
DIG4
DIG032DIG023DIG014DIG005_RESET6_CS7SCK8SDATA9P110P011VCC112XOUT13XIN14VSS15SEG35
1
101J
101J
C7005
C7006
C7007
C7008101J
7
6
5
4
3
2
1
7
6
5
4
3
2
1
JL7101A
R7005
R7006
R7007
R7008
27K
R7004
R7301
KEYINT0
HPIN
HP_L
GND_HP
HP_R
SEG19
3.3K
3.3K
220
220
101J
C7004
SEG34
C7001
100/16
330
33
SEG1834SEG1735SEG1636SEG1537SEG1438SEG1339SEG1240SEG1141SEG10
SEG20
SEG21
SEG22
SEG23
SEG24
SEG25
SEG26
SEG27
SEG28
SEG29
SEG30
SEG31
SEG32
SEG33
16
+
FLDRST
FLDCS
FLDCLK
FLDSDO
C7020
NC
32
31
30
29
28
27
26
25
24
VP
23
22
21
20
19
18
17
104J
C7002
R7312
R7311
470
330
CD
S7312
S7311S7321S7331
*
MEMORY
TUN UP
R7321
330
R7331
330
*
TUNER
S7322
DIGITAL IN
S7332
PRESET UP
R7322
470
R7332
470
TAPE
DISPLAY
ENTER
S7313
S7323
S7333
C7018
C7019NC
R7012
35.4
*
R7011
220
220
223Z
C7013
R7313
560
R7323
560
R7333
560
PRESET
NC
C7016
220/50
C7017
D7011
C7015
MTZJ8.2C
223Z
C7014
S7324
LIS MODE>
S7334
DOWN
NAPS-8769
REMIN
FLDCS
KEY0
KEY1
KEY2
KEY3
VOLA
VOLB
HPIN
HP_R
GND_HP
HP_L
Q2021
VIN4
VIN3
VCC
VIN2
GND
VIN1
LA7956
B
A
1
2
3
P7001B
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
To NADG-8756
22
23
24
25
26
27
28
29
AC IN
9
8
7
6
5
4
3
2
1
L1011
220K
C2022
223Z
C2021
47/25
+11.9
+
P901A
1
2
NAETC-8772
R2014
220
1
2 3
312
C1012
1
+
2
C1011
220/6.3
3
4
5
6
7
GND8OUT4
Q1001
TC74HCU04A
AC-H
AC-G
Q2002
RN1241
312
Q2005
KTA1267-GR
DTA114ES
Q2004
223Z
VCC
IN6
OUT6
IN5
OUT5
IN4
S981
240V
4
5
6 3
120V
312
100K
R2013
14
13
12
11
10
9
1
2
Q2001
RN1241
312
Q2003
DTA114ES
4.9
T902
1
2
3
456
R2008
680K
312
100K
R2012
9
8
7
C902 103Z
D925
1SS133
3
1 4
C901
103M/275
W-TYPE
ONLY
D2001
C2001
D2002
C2016
2.2/50
680K
R2011
C2015
2.2/50
680K
R2010
C2014
470/16
C2013
2.2/50
680K
R2009
C2012
2.2/50
C2011
470/16
NC
Q2114
R1004
C1004 080D
R1005
102K
+
+
+
+
+
+
2
10K
NC
C921
RL901
NC
R2117
NC
2 1
1 2
R2007
C2002
102K
R2006
R1003
75
75
C1003
103J
D951
R2121
R2122
R2123
100K
1SS133
P904B
D2121
D933
1SS133
D935
1SS133
D930
1SS133
D931
1SS133
D921
1SS133
D922
1SS133
D923
1SS133
D924
1SS133
D952
E901
F902 T4AL250V
F901
P905A
P904A
P905B
7
75
R2005
75
R2004
7
75
R2003
75
R2002
100K
R2001
56
NC
560
2 1
MTZJ9.1C
R1002
10
R934
C951
1SS133
T4AL250V
6
4
2
1 3 5
6
4
2
1 3 5
P2002
C1002
FLDRST
FLDCLK
FLDSDO
104J
104J
C7052
10K
10K
103Z
C7402 103Z
C7401
220K
C7012223Z
DVD
S7318
*
S7328
TONE-
S7338
TUN MODE
C7010
223Z
C7011
R7328
12K
R7338
12K
C7051
+
220/50
MULTI
TONE
DIMMER
-VP
S7319
S7329S7339
+
NC
2.2K
D7201
S7315
*
VIDEO3
S7325
LIS MODE<
S7335
TUN DOWN
LEDSTBY
R7201
STBY
R7211
100
R7315
1.2K
VIDEO2
R7325
1.2K
STEREO
R7335
1.2K
SETUP
S7401
102K
C7213
S7316
S7326
S7336
4
R7212
*
NC
1/50
+
C7003
R7314
820
R7324
820
R7334
820
1.2K
R7403
+
R7316
2.2K
R7326
2.2K
R7336
2.2K
4.9
C7211
10K
1
100/16
VIDEO1
TONE+
RETURN
2
3
2
1
S7317
S7327
S7337
3
*
R7404
R7401
R7402
U7212
10K
L7011
L7012
220K
R7317
3.9K
R7327
3.9K
R7337
3.9K
5
To NADG-8756
+5.6S
KEYINT0
FAC1
KEYINT1
FAC2
KEYINT2
R7013
KEYINT3
100
+5VDIS
GNDCPU
LEDSTBY
NAVD-8768
VIDEO OUT
P2011A
VCTRLA
1
VCTRLB
2
VMUTV1
3
VMUTMON
4
VMUTV3
5
GND_VIDEO
6
7
+12V_VIDEO
8
COAX
9
+5V_DSP
10
GND_DSP
11
MW-Type
Only
+
100K
C933
+
C930
+
C922
2200/16
101J
R901
8A 125V
P906A
P906B
F903
P2001
Q2122
2SC1815
213
+
101J
R1001
C1001
223Z
Q901 SI-3010KF
R906
R905
100K
4.7/50
33/35
D932
1SS133
2200/35
56(1/2W)
EXCEPT W-TYPE
VIDEO-3 IN
VIDEO-2 IN
VIDEO1 OUT
VIDEO1 IN
DVD IN
MONITOR
8.4
+
C2124
100/16
47/25
C2123
L1001
022M
75
3
Vc2Vin3GND4Vout5ADJ
1
100K
+
10/50
C905
223Z
C2125
P1001
2
1
R907
+
82K
C907
10K
R908
10
11
COAX
100/16
D934
MTZJ5.1B
J906
EXCEPT W-TYPE
+11.9
J907
W-TYPE
1
P981
3
5
To power trans. primary
7
9
POFF
+10VS
+12VD
GNDDG
POWERD
Q2121
NJM2585L
1
CH1IN1
2
SW1
3
CH1IN2
4
SW2
5
CH1IN3
6
V+
7
CH2IN1
8
GND
9
CH2IN2
GND
CH2IN312CH3IN3
22
CH1OUT
21
PS
20
CH2OUT
19
V+
18
CH3OUT
17
GND
16
CH3IN1
15
GND
14
CH3IN2
13
GND
Model No. HT-R340/TX-SR304
SCHEMATIC DIAGRAM PART-5
DISPLAY/VIDEO/POWER SUPPLY SECTION
1
2
3
JL9003B
4
5
To POWER AMP.
1
P902
P902
2
J2113
312
Q2113
NC
J2112
312
Q2112
NC
J2111
312
Q2111
NC
T901
8
9
10
11
C2101
102K
C2122
+
1/50
C2121
+
1/50
C2120
+
2.2/50
C2119
+
1/50
C2118
+
1/50
C2117
+
2.2/50
C2116
+
1/50
C2115
+
1/50
C2114
+
2.2/50
R2116
R2115
R2114
102K
75
75
75
9
R2112
R2111
R2110
R2109
R2108
R2107
R2106
R2105
R2104
R2103
R2102
R2101
6
75
75
75
75
75
75
75
75
75
100K
100K
100K
12
13
14
15
16
17
18
19
3
2
1
7
6
5
12
11
10
13 8 4
P2102
3
2
1
5 4
To NAETC-8476
P2101
CR
(PR)
CB
(PB)
Y
COMPONENT V2
CR
(PR)
CB
(PB)
Y
COMPONENT V1
CR
(PR)
CB
(PB)
Y
COMPONENT DVD
CR
(PR)
CB
(PB)
Y
COMPONENT OUT
7
5
3
1
1
2
C2102
C2113
+
470/6.3
C2112
+
470/6.3
C2111
+
470/6.3
TX-SR304/304E
A
PRINTED CIRCUIT BOARD VIEWS-1
U01
1
2
AMPLIFIER PC BOARD (NAAF-8745)
Component side
BCDEFGH
3
4
5
TX-SR304/304E
TX-SR304/304E
A
PRINTED CIRCUIT BOARD VIEWS-1
U01
1
2
AMPLIFIER PC BOARD (NAAF-8745)
Component side
BCDEFGH
3
4
5
TX-SR304/304E
A
PRINTED CIRCUIT BOARD VIEWS-2
U01
1
2
AMPLIFIER PC BOARD (NAAF-8745)
Soldering side
BCDEFGH
3
4
5
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