Arcam AVR300 Service Manual

AVR300 SURROUND SOUND RECEIVER
- 31 -
MUTI
C578
47u/16V
R409
33
CON
1 2 3 4 5 6 7 8 9
10 11 12 13 14 15 16
P402A
FROM MAIN BOARD P 402A
1 2 3 4 5 6 7 8 9
10 11 12 13 14 15 16
P403A
FROM MAIN BOARD P 403A
R402
5K1
R406
5K1
R405
12K
R408
11K
R407
5K1
R401
5K1
C414
220u/16V
C413
220u/16V
C402
220u/16V
C405
220u/16V
C408
220u/16V
C401
220u/16V
R410 5K1
R411 5K1
BSMU
CMU
FMU
SMU
C420
10u/16V
C430
103
C421
104
+3.3VD
C422
104
5
6
7
U414B
NE5532
R474 4K3
R473
4K7
R416
22K
R415
2K
C431
223
C432
104
C473
33P
R475
220
C
E
B
BSMU
C475
221
R477
100K
Nd
Nd
Z_AMP
+12V
-12V
R403
5K1
R404
5K1
by
1
bx
2
cy
3
c_o
4
cx
5
INH
6
VEE
7
VSS
8
C
9
B
10
A
11
ax
12
ay
13
a_o
14
b_o
15
VCC
16
U403
74HC4053
R472
0
R469
0
R445
3K9
R447
4K7
R467
4K7
R444
5K1
C461
47p
3
2
1
U413A
NE5532
R468
0
R446 20K C471 220p
5
6
7
U412B
NE5532
R449
3K9
R451
4K7
R470
4K7
R448
5K1
C465 47p
3
2
1
U409A
NE5532
R471
0
R450 20K
C472 220p
C415
10u/16V
C418
22u/16V
C423
22u/16V
C416
104
C417
104
C419
104
C424
104
AIN1L
1
AOM1R
2
AOM2L
3
AIN2R
4
AIN3L
5
AIN3R
6
AOM4L
7
AOM4R
8
AIN5L
9
AIN5R
10
AIN6L
11
AIN6R
12
AIN7L
13
AIN7R
14
AIN8L
15
AIN8R
16
APL
17
AINVGL
18
AINVGR
19
AINOPR
20
RECL
21
RECR
22
REFADC
23
VMIDADC
24
AGND
25
AVDD1
26
AUX1L
27
AUX1R
28
AUX2L
29
AUX2R
30
AUX3L
31
A3R
32
AVDD2
33
VOUT1L
34
VOUT1R
35
DACREFP1
36
VOUT2L
37
GR1
38
VOUT2R
39
VMIDDAC
40
VOUT3L
41
GR2
42
VOUT3R
43
DACREFP2
44
VOUT4L
45
VOUT4R
46
AGND2
47
DG
48
DVDD
49
ZFLAG1
50
ZFLAG2
51
DOUT
52
DIN1
53
DIN2
54
DIN3
55
DIN4
56
DACLRC
57
ADCLRC
58
BCLK
59
MCLK
60
CL
61
DI
62
CE
63
RES
64
U401
WM8770
C460
104
C464
104
R481 4K3
R480
4K7
C476 33P
R482
220
BSMU
C478
221
R484
100K
3
2
1
U414A
NE5532
5
6
7
U415B
NE5532
R488 4K3
R487
4K7
C479 33P
R489
220
SMU
C481
221
R491
100K
R495 4K3
R494
4K7
C482 33P
R496
220
SMU
C484
221
R498
100K
3
2
1
U415A
NE5532
5
6
7
U417B
NE5532
R502 4K3
R501
4K7
C485 33P
R503
220
CMU
C487
221
R505
100K
R509 4K3
R508
4K7
C488 33P
R510
220
FMU
C490
221
R512
100K
3
2
1
U416A
NE5532
5
6
7
U416B
NE5532
R516
4K3
R515
4K7
C491
33P
R517
220
FMU
C493
221
R519
100K
R523 7K5
R522
4K7
C494 33P
R524
220
R525
220
SUBMU
C496
221
R526
100K
3
2
1
U417A
NE5532
R466
0
R463
0
5
6
7
U407B
NE5532
R437
3K9
R439
4K7
R461 4K7
R436
5K1
C453 47p
R462
0
R438 20K
C469
220p
5
6
7
U411B
NE5532
R441
3K9
R443
4K7
R464
4K7
R440
5K1
C457
47p
3
2
1
U408A
NE5532
R465
0
R442
20K
C470
220p
C452
104
C456
104
R460
0
R457
0
5
6
7
U406B
NE5532
R429
3K9
R431
4K7
R455 4K7
R428
5K1
C445 47p
3
2
1
U411A
NE5532
R456
0
R430 20K
C467 220p
5
6
7
U410B
NE5532
R433
3K9
R435
4K7
R458 4K7
R432
5K1
C449
47p
3
2
1
U407A
NE5532
R459
0
R434 20K
C468 220p
C444
104
C448
104
R454
0
3
2
1
U410A
NE5532
R425
3K9
R427
4K7
R452 4K7
R424
5K1
C441
47p
3
2
1
U406A
NE5532
R453
0
R426 20K
C466
220p
C440
104
C433
220u/16V
by
1
bx
2
cy
3
c_o
4
cx
5
INH
6
VEE
7
VSS
8
C
9
B
10
A
11
ax
12
ay
13
a_o
14
b_o
15
VCC
16
U404
74HC4053
R418
1K
R421
1K
R419
4K7
R420 4K7
R422
4K7
R423
4K7
84
U411C
OPA2134
84
U412C
OPA2134
84
U410C
OPA2134
84
U409C
OPA2134
84
U407C
OPA2134
84
U408C
OPA2134
84
U406C
OPA2134
+12V
-12V
C500
104
C502
104
C504
104
C506
104
C508
104
C510
104
C512
104
C501
104
C503
104
C505
104
C507
104
C509
104
C511
104
C513
104
84
U416C
OPA2134
84
U417C
OPA2134
84
U415C
OPA2134
84
U414C
OPA2134
84
U413C
OPA2134
C514
104
C516
104
C518
104
C520
104
C522
104
C515
104
C517
104
C519
104
C521
104
C523
104
Vin
1
GND
2
+5V
3
U405
LM7805
+12V
C426
47u/16V
C425
104
R413
330/1/8W
-12V
C428
1000u/6V3
C427
104
C434
104
C435
104
C437
104
C436
104
5
6
7
U409B
NE5532
5
6
7
U413B
NE5532
1 2 3 4 5 6 7 8
P105B
TO AMP1 BOARD P 104A1
1 2 3 4 5 6
P101B
TO AMP1 BOARD P106A
C458
220u/16V
C462
220u/16V
C450
220u/16V
C454
220u/16V
C442
220u/16V
C446
220u/16V
C438
220u/16V
VA403A
FR_OUT
VA403B
FL_OUT
VA403C
SR_OUT
VA403D
SL_OUT
VA403E
BSR_ OUT
VA403F
BSL_O UT
VA401A
EXT_RI N
VA401B
EXT_LIN
SUBMU
MON
CON
VA404A
CEN_OUT
VA404B
SUB_OUT
ZONE_R
E_SL
ZONE_L
E_SR
E_Z_R
E_Z_L
E_SR
E_SL
R530 2K4
R531
2K4
R532
10K
R533 10K
R534 20K
R535 20K
Y0
1
Y2
2
Y
3
Y3
4
Y1
5
EN
6
Vee
7
VSS
8
S1
9
S0
10
X3
11
X0
12
X
13
X1
14
X2
15
VDD
16
U418
74HC4052
L_S0
L_S1
+4V7
-4V7
C525
104
C526
104
2V IN 0
4V IN 0
1V IN 1
0.5V IN 1
0
1
0
1
L_S1 L_ S0
-4V7
+4V7
-4V7
+4V7
L_S1
L_S0
R536
100R / 1/4W
C429
3300u/10V
+3.3VD
ZONE_L
ZONE_R
C541
220u/16V
C542
220u/16V
E_Z_R
E_Z_L
D205
1N4148
D206
1N4148
D207
1N4148
D208
1N4148
C543
104
C544
104
-4V7
+4V7
Z_AMP
R537 1K
R538 1K
C545
103
C546
103
C547
104
R540
1k
Y0
1
Y2
2
Y
3
Y3
4
Y1
5
EN
6
Vee
7
VSS
8
S1
9
S0
10
X3
11
X0
12
X
13
X1
14
X2
15
VDD
16
U420
74HC4052
R545 6K8
R546 20K
R548 3k3
R547
22K
R541
6K8
R544 20K
R542
3k3
R543
22K
40
20
11
0.5 1
0
1
0
1
G_S1 G_S0
Gain
+4V7
C549
104
-4V7
C550
104
G_S0
G_S1
R549 1K
R550
1K
Y0
1
Y2
2
Y
3
Y3
4
Y1
5
EN
6
Vee
7
VSS
8
S1
9
S0
10
X3
11
X0
12
X
13
X1
14
X2
15
VDD
16
U421
74HC4052
R555 6K8
R556
20K
R558
3k3
R557
22K
R551 6K8
R554 20K
R552 3k3
R553 22K
+4V7
C554
104
-4V7
C553
104
G_S0
G_S1
R559 1K
R560
1K
Y0
1
Y2
2
Y
3
Y3
4
Y1
5
EN
6
Vee
7
VSS
8
S1
9
S0
10
X3
11
X0
12
X
13
X1
14
X2
15
VDD
16
U422
74HC4052
R565
6K8
R566
20K
R568
3k3
R567
22K
R561 6K8
R564
20K
R562 3k3
R563 22K
+4V7
C558
104
-4V7
C557
104
G_S0
G_S1
R569
1K
R570
1K
Y0
1
Y2
2
Y
3
Y3
4
Y1
5
EN
6
Vee
7
VSS
8
S1
9
S0
10
X3
11
X0
12
X
13
X1
14
X2
15
VDD
16
U423
74HC4052
R575
6K8
R576
20K
R578
3k3
R577
22K
R571
6K8
R574 20K
R572 3k3
R573 22K
+4V7
C562
104
-4V7
C561
104
G_S0
G_S1
R579 1K
R580 1K
R583
3K9
C565
104
R581
1K5
R582
20K
C566 271
+12V
C499
470u/16V
20mA supply 3.3v
R585
12K
R586
12K
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
P406A
FROM MAIN BOARD P 406A
G_S0
G_S1
VA402A
EXT_CI N
VA402B
EXT_S UBIN
VA401C
EXT_S RIN
VA401D
EXT_S LIN
VA401E
EXT_BS RIN
VA401F
EXT_BS LIN
CE DI CL W RST DGND DGND DGND DGND DGND DGND DGND DGND MCLK BCLK LRC DIN4 DIN3 DIN2 DIN1 DOUT
Analog_L
Analog_R
SL
SUB
CEN
BSR
BSL
SR
FR
FL
BSR
BSL
SR
SL
CEN
FR
FL
SUB
AMP GND AMP GND AMP GND AMP GND AMP GND AMP GND AMP GND
FL
C SL FR SR BSR BSL
C497
100u/16V
C498
100u/16V
R599
3K9
C567
33p
3
2
1
U412A
NE5532
5
6
7
U408B
NE5532
BI_AMP
Y0
1
Y2
2
Y
3
Y3
4
Y1
5
EN
6
Vee
7
VSS
8
S1
9
S0
10
X3
11
X0
12
X
13
X1
14
X2
15
VDD
16
U419
74HC4052
R601
5K1
R600
5K1
BI_AMP
C570
104
R602
1k
DVD_A 0
ZONE2 1
DVD_LR 0
0
0
1
Z_AMP BI_AMP
R478
33
DGND
C
E
B
Vin
1
G
2
3V3
3
U625
LM3.3
R479
2K
R499
100
AGND
DGND
Q417
KTC8050
R611
1K
C410
47u/16V
Z402
4V7
C579
103
C580
47u/16V
R412
330/1/8W
R612
1K
C409
47u/16V
Z401
4V7
C581
103
Q418
KTC8550
C
E
B
C
E
B
C
E
B
C
E
B
C
E
B
C
E
B
C
E
B
C
E
B
C
E
B
C
E
B
C
E
B
C
E
B
C
E
B
C
E
B
Not fitted
Not fitted
Bypass WM8770 internal Mux
Option in case bypass does not work
C498
47u/16V
Nd
Nd
R613
100
R614
100
R615
100
R616
100
R617
100
R618
100
R619
100
R620
100
C492
220u/16V
C489
220u/16V
C486
220u/16V
C483
220u/16V
C480
220u/16V
C477
220u/16V
C474
220u/16V
C495
220u/16V
R623
10K
TO GND
R624
10K
R625
10K
R626
10K
R627
10K
R628
10K
R629
10K
R630
10K
R631
10K
R632
NF
C680
100u/50V
1
2
3
4
5
6
7
8
9
10
11
12
P404A
FROM AUD BOARD P404B
R635
47K

Arcam AVR300 Specifications

General

Brand	Arcam
Model	AVR300
Category	Receiver
Language	English