DTR-7.3
SCHEMATIC DIAGRAM 4-1 Pre-amplifier section
J4044
J4039
P3601
LEFT
SURROUND
RIGHT
LEFT
SURROUND
RIGHT
BACK
P3600
MULTICHANNEL
INPUT
LEFT
FRONT
RIGHT
CENTER
SUBWOOFER
P4010B
NC
NC
NC
NC
CS2
C
S1
GND
STB
DATA
CK
VSS
VDD
LM
LT
RT
RM
Q4200
TC94A07F
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
NC
NC
NC
NC
CS2
C
S1
GND
STB
DATA
CK
VSS
VDD
LM
LT
RT
RM
Q4201
TC94A07F
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
NC
NC
NC
NC
CS2
C
S1
GND
STB
DATA
CK
LM
LT
RT
RM
Q4202
TC94
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
C3606
331K
C3605
331K
C3604
331K
C3603
331K
C3607
331K
C3602
331K
C3601
331K
C3600
331K
C4210
100D
C4211
100D
C4212
100D
C4217
102J
R3875
22K
R3874
22K
R3877
22K
R3876
22K
R3863
1.5K
R3862
1.5K
R3867
10K
R3866
10K
R3864
10K
R3865
10K
R3879
22K
R3878
22K
R3873
22K
R3872
22K
R3869
1.5K
R3871
1.5K
R4042
0
R4032 2.2K
R4022 2.2K
R4023 2.2K
R4033 2.2K
R4043
0
R4021 12K
R4031 12K
R4041 1.8K
R4040 1.8K
R4030 12K
R4020 12K
R4700
100K
R4701
100K
R4702
100K
R4323
22
(1/2W)
R4321
22
(1/2W)
R4121
22
(1/2W)
R4120
22
(1/2W)
R3625
220K
R3626
220K
R3605
330
R3615
56K
R3606
330
R3616
56K
R3623
220K
R3624
220K
R3603
330
R3613
56K
R3604
330
R3614
56K
R3622
220K
R3627
220K
R3602
330
R3612
56K
R3607
330
R3617
56K
R3620
220K
R3621
220K
R3600
330
R3610
56K
R3601
330
R3611
56K
R3801
220K
R3800
220K
R3868
1.5K
R3870
1.5K
R4324
22
(1/2W)
R4103
2
.2K
R4540
3.3K
R4541
4.7K
R4320
22
(1/2W)
R4210
220K
R4200
100K
R4211
220K
R4201
100K
R4322
22
(1/2W)
R4212
220K
R4202
100K
R4217
220K
R4207
100K
R420
100K
R4325
22
(1/2W)
R420
100K
R4100
2
.2K
R4500
2
.2K
R4501
2
.2K
R4503
2
.2K
R4502
2
.2K
R3805
2
20K
R3821
2
20K
R3820
2
20K
R3840
2
20K
R3841
2
20K
R4101
2
.2K
R4300
2
.2K
R4301
2
.2K
R4302
2
.2K
R3807
2
20K
R3802
2
20K
R3804
2
20K
R3803
2
20K
R3806
2
20K
C4121
220/16
C4120
220/16
C3616
10/50
C3615
10/50
C3614
10/50
C3613
10/50
C3617
10/50
C3612
10/50
C3611
10/50
C3610
10/50
C3801
47/50
C3800
47/50
C4540
100/6.3
C4320
220/16
C4200
10/50
C4220
1/50
C4321
220/16
C4221
1/50
C4201
10/50
C4322
220/16
C4222
1/50
C4202
10/50
C4323
220/16
C4227
1/50
C4207
10/50
C4324
220/16
C4203
10/50
C4325
220/16
C4204
10/50
C3841
1
0/50
C3821
4
7/50
C3820
4
7/50
C3840
1
0/50
C3806
1
0/50
C3805
1
0/50
C3803
1
0/50
C3804
1
0/50
C3802
4
7/50
C3807
4
70/6.3
C3865
272J
C3864
272J
C3863
122J
C3862
122J
C4100
101J
C3681
104Z
C3680
104Z
C4501
101J
C450
101
C4300 101J
Q3860
NJM4565M-D
3
8
2
1
Q3861
NJM4565M-D
3
8
2
1
Q3862
NJM4565M-D
3
8
2
1
Q3860
5
6
4
7
Q3862
5
6
4
7
Q3861
5
6
4
7
5
6
VSS
ST
GND
C
L
DATA
VDD
Q4101
TC9164AF
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
VSS
ST
GND
C
L
DATA
VDD
Q4100
TC9163AF
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
D4540
5.1B
P4011B
P4020B
AF
DA
AF
CL
V
LCL
VLDA
VLST
B
AS
T
B
VLC
L
VL
DA
VLS
TB
AF
DA
AF
CL
V
LCL
AST
B
VLDA
VLST
B
LRZ
2
LT
RT
RRZ
2
HPMU
T
AMUT
Z2MU
T
ASTB
AFDA
AFCL
VLCL
VLDA
VLST
B
TNCS
2
TNCS
1
TNDA
TNCL
DSW
DC
DSR
DSL
DR
DL
DS
BL
DS
BR
+1
5V
GN
D
-1
5V
VLSC
Left
Right
Center
Subwoofer
Left
Surround
Surround
Right
A
TO NAAR-7728(SCH. 9)
TO NAAR-7728(SCH. 9)
TO NAAR-7728(SCH. 9)
U31
A
1
2
3
5
B
C
D
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TEL 13942296513 QQ 376315150 892498299