Harman Kardon AVR 171/230, Service Manual

Page: 169 / 174

AVR171/230
7
7
B
1 2 3 4 5
D
C
B
A
6
C
D
A
APPROVE CHECK DESIGN DRAWING NO
MODEL
SHEET
SCHEMATIC DIAGRAM
REVISION
1
2
3
4
5
6
7
DAC-SR
DAC-SL
DAC-SW
DAC-C
DAC-R
DAC-L
FROM CODEC
DAC-L
DAC-R
DAC-C
DAC-SW
DAC-SL
DAC-SR
12.12.21
C.D.C S.K.S C.D.W
12.12.21
MULTI. LAB
ANAM
ISSUE
MP
CUP12456Z
27
21
(VOLUME_FILTER)
DAC-BR
DAC-BL
DAC-SBL
DAC-SBR
MUTE CONTROL
P_M
DC-PROTECT
P_FAIL
OC_DETECT
VOL_DATA
VOL_CLK
TUNER_MUTE
+3.3V
ZONE2_VOL_CLK
ZONE2_VOL_DATA
ZONE2_MUTE
SB_MUTE
FAN1_ON
FAN2_ON
+7V
-7V
SUB_IN
SL_IN
CNT_IN
SR_IN
FL_IN
FR_IN
SL_IN
CNT_IN
SR_IN
FL_IN
FR_IN
AGND
CHGND
AGND
AGND
AGND
AGND
SBL_IN
SBR_IN
SBL_IN
SBR_IN
AGND
AGND
OVERLOAD DETECTION
0V
0V
PROTECT TEST
(SHORT)
DC PROTECTOR
Operating: +5.0V~ , -5.0V~
R940=1.5K
OVERLOAD
* 3 Step Detect *
4.7A : VCC 48V->42.2V
7.0A : VCC 42.2V->25.2V
8.0A: Protect
+12V
CO
N
N
ECT TO
V
O
L B'd
CO
N
N
ECT TO
V
O
L B'd
AGND
SUB_IN
AGND
AD_LIN
AGND
AGND
AD_RIN
MIC_SIG
BT_FR
BCO_L
BT_FL
AGND
BCO_R
AGND
HPL_OUT
AGND
TUNER_SDA
HPR_OUT
TUNER_SCL
FUNC_MUTE
Bluetooth
12.08.13
12.08.13
BT_STATUS
GND
+3.3V_BT
FN2
GND
BT_PWR_CTL
BT_AUDIO_EN
BT_FL
BT_FR
FN1
BT_STATUS_PAIR
FN3
GND
GND
GND
GND
+5V_BT
12.12.11
12.12.11
12.12.20
12.12.20
12.12.20
12.12.20
12.12.20
12.12.20
12.12.21 12.12.21
12505SCDZ
1 2 3 4
5 6 7 8
A
+
-
B
+-
A O
U
TP
U
T
A-
IN
PU
T
A+
IN
PU
T
V-
B+
IN
PU
T
B-
IN
PU
T
B O
U
TP
U
T V+
IC
1601
C
V
IA
Z4580M
T
R
-E
1
R1627
3.3K
R1626 3.3K
C
1614
2700P
C
1618 2700P
R1624
1.5K
R1625
1.5K
R
1617 6.
8K
R1623
6.8K
C1611
390P
C
1616
390P
C1612 0.
1u
F
C1608
0.
1u
F
R1621
100
C1610
10/16V
R1620
100K
C
1609
0.
01u
F
R
1616
6.
8K
C
1617 2700P
C
1613
2700P
R1615
1.5K
C
1615
390P
R1614
1.5K
R1612
6.8K
C1605
390P
R1618
100
C1606
10/16V
R1619
100K
C
1607
0.
01u
F
R1611
3.3K
R1610
3.3K
R1622
0
R1613
0
1 2 3 4
5 6 7 8
A
+
-
B
+-
A O
U
TP
U
T
A-
IN
PU
T
A+
IN
PU
T
V-
B+
IN
PU
T
B-
IN
PU
T
B O
U
TP
U
T V+
IC
1602
C
V
IA
Z4580M
T
R
-E
1
R1645 3.3K
R1644 3.3K
C
1627
2700P
C
1631
2700P
R1642
1.5K
R1643
1.5K
R
1635
6.
8K
R1641
6.8K
C1625
390P
C
1629
390P
C1626 0.
1u
F
C1622
0.
1u
F
R1639
100
C1624
10/16V
R1638
100K
C
1623
0.
01u
F
R
1634
10K
C
1632
0.
068u
C
1628
0.
068u
R1633
1.5K
C1630
8200P
R1632
1.5K
R1630
10K
C1619
8200P
R1636
100
C1620
10/16V
R1637
100K C
1621
0.
01u
F
R1629 3.3K
R1628
3.3K
R1640
0
R1631
0
1 2 3 4
5 6 7 8
A
+
-
B
+-
A O
U
TP
U
T
A-
IN
PU
T
A+
IN
PU
T
V-
B+
IN
PU
T
B-
IN
PU
T
B O
U
TP
U
T
V+
IC
1603
C
V
IA
Z4580M
T
R
-E
1
R1664
3.3K
R1663
3.3K
C
1641
2700P
C
1645
2700P
R1661
1.5K
R1662
1.5K
R
1654
6.
8K
R1660
6.8K
C1639
390P
C
1643 390P
C1640 0.
1u
F
C1636
0.
1u
F
R1658
100
C1638
10/16V
R1657
100K
C
1637
0.
01u
F
R
1652 6.
8K
C
1646 2700P
C
1642
2700P
R1651
1.5K
C
1644 390P
R1650
1.5K
R1648
6.8K
C1633
390P
R1655
100
C1634
10/16V
R1656
100K
C
1635
0.
01u
F
R1647 3.3K
R1646 3.3K
R1659
0
R1649
0
D1605
HVD1SR159-200
D1604
HVD1SR159-200
3
2
1
IN
GND
OUT
IC1605
CVILM7808RTRL
3
1
2
OUT IN
GND
IC1606
CVILM7908RTRL
C1661
0.
1u
F
C1663
0.
1u
F
C1662
0.
1u
F
C1664
0.
1u
F
Q
1624
R1694
100K
1 2 3 4
5 6 7 8
A
+
-
B
+-
A O
U
TP
U
T
A-
IN
PU
T
A+
IN
PU
T
V-
B+
IN
PU
T
B-
IN
PU
T
B O
U
TP
U
T V+
IC
1604
C
V
IA
Z4580M
T
R
-E
1
R1682
3.3K
R1681
3.3K
C
1655
2700P
C
1659 2700P
R1679
1.5K
R1680
1.5K
R
1672
6.
8K
R1678
6.8K
C1653
390P
C
1657
390P
C1654
0.
1
C1650
0.
1
R1676
100
C1652
10/16V
R
1675
100K
C
1651
0.
01u
F
R
1671 6.
8K
C
1660
2700P C
1656
2700P
R1670
1.5K
C
1658
390P
R1669
1.5K
R1667
6.8K C1647
390P
R1673
100
C1648
10/16V
R1674
100K
C
1649
0.
01u
F
R1666
3.3K
R1665 3.3K
R1677
0
R1668
0
Q1613
T1N144C
Q1614
T1N144C
Q
1612
T1P
144C
R
1686
10K
Q1616
T1N144C
Q1617
T1N144C
Q
1615
T1P
144C
R
1688
10K
Q1619
T1N144C
Q1620
T1N144C
Q
1618
T1P
144C
R
1690
10K
Q1610
T1N144C
Q1611
T1N144C
Q
1609
T1P
144C
R
1684 10K
R1685
1M
R1687
1M
R1689
1M
R1691
1M
D1607
1SS355
C1666 470/
16V
C1665 470/
16V
D1606
1SS355
R1683
1K
R1601
10K
R
1602 10K
D
1601 3.
3V
Q1602
RT1P144
Q
1601
R
T1P
144
Q1604
MMBT5551
R
1608 1.
5K
R
1606 1K
C1601 10/
16V
R
1607 4.
7K
R
1605 3K
Q1603
MMBT5551
R1604
4.7K
R1603
4.7K
Q1605
MMBT5551
C1602
1000P
T1601
T1602
Q1606
MMBT5551
Q1607
MMBT5551
Q1608
MMBT5401
R
1609 100K
D1603
1SS355
D
1602
1S
S355
C1604
10/
16V
C1603
1000P
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
17
16
18
19
25
24
22
23
21
20
26
27
29
28
31
30
33
32
35
34
37
36
39
38
40
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
29
30
31
32
33
34
35
36
37
38
39
40
CN
1602
CJ
P40GA
193Z
Y
R1695
0
1
2
3
4
5
6
7
8
9
10
11
12
13
Q1622
T1N144C
Q1623
T1N144C
Q
1621
T1P
144C
R
1692 10K
R1693
1M
C1667
22P
C1668
22P
16
17
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
CN
1603
CJ
P17G
A193Z
Y
R1756
1K
R1757
1K
R1758
1K
R1759
1K
R1760
1K
R1761
1K
D_FR-
D_FL-
D_SW-
D_FR+
D_FL+
D_SW+
D_CT+
D_CT-
D_SR-
D_SR+
D_SL+
D_SL-
+7V
-7V
+7V
-7V
+7V
-7V
-8V
+8V
-7V
+7V
-12V
+12V
+12V
AGND
AGND
AGND AGND
AGND
AGND
-12V
AGND
AGND
AGND
AGND
AGND
AGND
TUNER_MUTE
-12V
AGND
D_BR-
D_BR+
D_BL+
D_BL-
+7V
-7V
AGND
AGND
TUNER_MUTE1
HP_MUTE
SB_MUTE
ZONE2_MUTE
FUNC_MUTE
FUNC_MUTE
ZONE2_MUTE
SB_MUTE
HP_MUTE
+12V
-12V
ST+5V
-7V
+7V
CHGND
CURRENT_DET
PROTECT_IN
+12V
+12V
+12V
POWER_FAIL
+3V3_DC
AGND AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AD_LIN
AD_RIN
MIC_SIGNAL
BT_FL
BT_FR
BRIDGECO_L
BRIDGECO_R
HPL-OUT
HPR-OUT
TUNER_SCL
TUNER_SDA
TUNER_MUTE1
AGND
FAN1_ON
FAN2_ON
+12V
ZONE2_MUTE
ZONE2_VOL_DATA
ZONE2_VOL_CLK
POWER_MUTE
FUNC_MUTE
SB_MUTE
MAIN_VOL_DATA
MAIN_VOL_CLK
BCO_3.3V
BT_FR
BT_FL
BT_FN1
BT_FN2
BT_AUDIO_EN
BT_STATUS_PAIR
BT_STATUS
BT_FN3
BT_PWR_CTL
AMP_GAIN_CONT
AMP_GAIN_SW
AMP_GAIN_SW
ST+5V
-12V
Harman Kardon AVR 171 Service Manual
Page 169 of 174