Harman Kardon AVR 171/230 Service Manual page 169

Harman Kardon
6
3.3K
R1610
D_FR-
R1611 3.3K R1615
D_FR+
1.5K
D
R1626 3.3K R1625
D_FL+
1.5K
R1627 3.3K
D_FL-
R1628 3.3K
D_SW-
R1629 R1633
3.3K
D_SW+
1.5K
R1644 3.3K R1643
D_CT+
1.5K
R1645 3.3K
D_CT-
R1646 3.3K
D_SR-
R1647 3.3K R1651
D_SR+
1.5K
C
R1663 3.3K R1662
D_SL+
1.5K
R1664
D_SL- 3.3K
R1665 3.3K
D_BR-
R1666 3.3K
R1670
D_BR+
1.5K
R1681 3.3K R1680
D_BL+
1.5K
R1682 3.3K
D_BL-
B
Bluetooth
+3.3V_BT BCO_3.3V
17
GND
16
ST+5V
GND
15
GND
14
+5V_BT
13
BT_STATUS BT_STATUS
12
BT_STATUS_PAIR BT_STATUS_PAIR
11
BT_FN3
FN3
10
A
BT_AUDIO_EN BT_AUDIO_EN
9
FN2 BT_FN2
8
FN1 BT_FN1
7
GND
6
BT_FL BT_FL
5
GND
4
BT_FR BT_FR
3
GND
2
BT_PWR_CTL BT_PWR_CTL
1
5
R1612 0
6.8K R1613
R1614 C1605
1.5K DAC-R DAC-R
390P C1606
R1618
+7V
100 10/16V
5 6 7 8
AGND
AGND
4 3 2 1
DAC-L
DAC-L
-7V R1621 C1610
C1611 100
R1624 10/16V
1.5K 390P
R1623 0
6.8K
R1622
R1630 0
10K R1631
R1632 C1619
1.5K DAC-SW DAC-SW
8200P R1636 C1620
+7V
100
10/16V
5 6 7 8
AGND
DAC-SR
AGND
DAC-SL
4 3 2 1
DAC-C
DAC-C
-7V R1639 C1624
C1625 100 10/16V
R1642
DAC-SBR
1.5K 390P
R1641 0
DAC-SBL
6.8K R1640
R1648 0
6.8K R1649
R1650 C1633
1.5K 390P DAC-SR
R1655 C1634
+7V
100
10/16V
5 6 7 8
AGND
AGND
4 3 2 1
DAC-SL
C1638
-7V R1658
C1639 100 10/16V
R1661
1.5K 390P
0
R1660
6.8K R1659
R1667
0
6.8K R1668 C1647
R1669
1.5K DAC-BR
390P C1648
R1673
+7V 100
10/16V
5 6 7 8
AGND
AGND
4 3 2 1
DAC-BL
R1676 C1652
-7V
C1653 100 10/16V
R1679
1.5K
390P
R1678 0
6.8K R1677
+8V
+7V
CVILM7808RTRL +12V
IC1605
D1604
+12V
3 1
OUT IN
HVD1SR159-200
2
AGND AGND
AGND
-8V
-7V
-12V
CVILM7908RTRL
IC1606
D1605 -12V
3 2
OUT IN
HVD1SR159-200
GND
1
AGND
AGND
AGND
4 3
+12V
PROTECT_IN
AGND
AGND
+12V
MUTE CONTROL
D1606
R1683
ST+5V
1K 1SS355
D1607
+12V
1SS355
Q1610
T1N144C
Q1613
FUNC_MUTE
ZONE2_MUTE
SB_MUTE
T1N144C
HP_MUTE
AMP_GAIN_CONT
Q1616
T1N144C
Q1619
T1N144C
Q1622
T1N144C
2
POWER_FAIL
DC PROTECTOR
Q1606
MMBT5551
Q1602 R940=1.5K
RT1P144 Operating: +5.0V~ , -5.0V~
MMBT5551 MMBT5551
D1603
Q1603 Q1604
0V
1SS355
Q1608
Q1607
MMBT5401
MMBT5551
AGND AGND AGND
AGND AGND
AGND AGND
AGND
Q1605
MMBT5551
+12V
AGND
OVERLOAD DETECTION
0V
R1603
T1601
4.7K PROTECT TEST
R1604 CURRENT_DET
(SHORT)
T1602
4.7K
AGND
SUB_IN
SL_IN
CNT_IN
SR_IN
FL_IN
FR_IN
SBL_IN
SBR_IN
R1756 R1761
FUNC_MUTE TUNER_MUTE1 TUNER_MUTE
1K 1K
12.12.20 12.12.20
-12V
Q1611 AGND
R1694
R1685
-12V
100K
1M
T1N144C
R1757
ZONE2_MUTE
1K
12.12.20
Q1614
R1687
1M
T1N144C
R1758
SB_MUTE
1K
12.12.20
Q1617
R1689
1M
T1N144C
R1759
HP_MUTE
1K
12.12.20
Q1620
R1691
1M
T1N144C
R1760
AMP_GAIN_SW
1K
12.12.20
Q1623
R1693 1
1M
T1N144C
12.08.13
MODEL
DESIGN
C.D.W
12.12.21
AVR 171 Service Manual
1
CUP12456Z
FUNC_MUTE
FUNC_MUTE
SB_MUTE
SB_MUTE
ZONE2_VOL_CLK
ZONE2_VOL_CLK
ZONE2_VOL_DATA
ZONE2_VOL_DATA
ZONE2_MUTE
ZONE2_MUTE
+12V
+12V
FAN2_ON
FAN2_ON
FAN1_ON FAN1_ON
P_FAIL
OVERLOAD
DC-PROTECT
P_M
POWER_MUTE
R1601
OC_DETECT
10K
* 3 Step Detect *
4.7A : VCC 48V->42.2V
7.0A : VCC 42.2V->25.2V
8.0A: Protect
AGND
+3V3_DC
+3.3V
1
+7V -7V
2
+7V
-7V
3
12.12.11 CHGND
-12V
4
SUB_IN
5
AGND
6
SL_IN
7
AGND
8
CNT_IN
9
AGND
10
SR_IN
11
AGND
12
FL_IN
13
AGND
14
FR_IN
15
AGND
16
SBL_IN
17
AGND
18
SBR_IN
19
R1695
AGND
CHGND
20
12.12.11 0
AMP_GAIN_SW AGND
21
AD_LIN
AD_LIN
22
AD_RIN
AD_RIN
23
AGND
24
MIC_SIGNAL MIC_SIG
25
AGND
26
BT_FL
BT_FL
27
BT_FR BT_FR
28
AGND
29
BRIDGECO_L BCO_L
30
BRIDGECO_R BCO_R
31
AGND
32
12.08.13
HPL-OUT HPL_OUT
33
HPR_OUT
HPR-OUT 34
AGND
35
TUNER_SCL TUNER_SCL
36
TUNER_SDA TUNER_SDA
37
TUNER_MUTE1 TUNER_MUTE
38
VOL_CLK
MAIN_VOL_CLK
39
VOL_DATA
MAIN_VOL_DATA
40
AGND
MP
ISSUE
ANAM
MULTI. LAB
12.12.21
REVISION 2 4 6
3 5 7
SCHEMATIC DIAGRAM
SHEET
AVR171/230 21
27
CHECK APPROVE DRAWING NO
12505SCDZ
S.K.S C.D.C
(VOLUME_FILTER)
7
Page 169 of 174
12.12.21 12.12.21
7
D
C
B
A