Harman Kardon AVR 370 Service Manual page 170

SR-CH
R524 C574
470 270P
Q504
KSA992FTA
Q604
KSA992FTA
Q514 Q519
SR
50V/10uF R579
10
SIG15 C504
C604
12P
KSC1845FTA KSC1845FTA
Q559 Q564
D504 R502
POWER_MUTE
43K
1SS133M
Q544
KTC3198YT
BL-CH
C575
R525
470 270P
Q505
KSA992FTA
Q605
KSA992FTA
Q515 Q520
CN12
SBL 50V/10uF R580
OC_DETECT SBL_CH
SIG17 10
C505
FAN1_ON
FAN2_ON
IPHONE_MUTE
PWR_MUTE
C605
PROTECT KSC1845FTA
KSC1845FTA 12P
P_FAIL Q560 Q565
1SS133M R503
+12V
POWER_MUTE
D505 43K
Q545
GND
KTC3198YT
SUB2
SIG20
SUB
SIG12
SL
SIG13
C
SIG14
SL-CH
SR
SIG15
FL
SIG16
SBL
SIG17
C819
R872
FR
SIG18
270P
470
SBR
SIG19 Q816
KSA992FTA
Q812
KSA992FTA
Q818 Q819
SL 50V/10uF
R611
SIG13
C817 10
C805
KSC1845FTA
KSC1845FTA 12P
Q820 Q813
POWER_MUTE
POWER_MUTE 1SS133M R870
D803 43K
Q824
KTC3198YT
Q961
VCC 3
A1024
R961
SIG00
330
BR-CH
Q960
RT1N144C
R873 C820
470 270P
Q817
KSA992FTA
Q814
2SC2240BL -->KSC1845FTA KSA992FTA
Q821 Q822
SBR
50V/10uF R612
SIG19 10
C818
KSC1845FTA C806
KSC1845FTA
2SC2240BL -->KSC1845FTA 12P
Q823 Q815
1SS133M R871
43K
POWER_MUTE D804
Q825
KTC3198YT
2SC2240BL -->KSC1845FTA
** IMPORTNAT SAFETY NOTICE.
INPORTANT FOR SAFETY WHEN REPLACING ANY OF THESE COMPONENTS
USE ONLY MANUFACTURE'S SPECIFIED PARTS.
** THE UNIT OF RESISTANCE IS OHM.
K=1000 OHM, M=1000 KOHM.
** THE UNIT OF CAPACITANCE IS MICROFARAD (uF)
pF = 10 -6 uF
** THIS SCHEMATIC DIAGRAM MAY MODIFIED AT ANY TIME WIHE THE
IMPROVEMENT OF PERFORMANCE
AVR270/370 Main Schematic Diagram
VCC1
R634
C-CH
SIG00
18(1/4W)
OVER
Q660
2SD2560 SIG06
R649
3.3
Q874
KTA1360Y +1.2V
KTC3198YT
Q684
R674
4.7K
C
50V/10uF
SIG14
CN64
C501
Q854
D600K
R877
VR84
330
R679
D501
-1.2V 1.8kohm
POWER_MUTE
1SS133M
47 (1/4W)
Q884 R654 SR_CH
R669
C3423Y
47 (1/4W)
3.3
SR-CH
Q654 R699
2SB1647 L504
0.5uH
_VCC1
R639
18(1/4W) SIG01
VCC
R635
SIG00
FR-CH
18(1/4W)
OVER
Q670
2SD2560 SIG06
R650
3.3
Q875
KTA1360Y
+1.2V
KTC3198YT
Q685
R675
4.7K
FR
50V/10uF
SIG18
CN65 C502
Q853
D600K
R876
VR83
330
D502
R680 R504
POWER_MUTE
1.8kohm 1SS133M 43K
-1.2V
47 (1/4W)
R655
Q885
R670
C3423Y BL_CH
3.3
47 (1/4W)
Q655 SBL-CH
R700
2SB1647
L505
0.5uH
_VCC
R640
SIG01
18(1/4W) IPHONE_MUTE ADDED
VCC1
R821
SIG00
18(1/4W)
OVER
Q803
2SD2560
SIG06
R817
3.3
Q876
KTA1360Y +1.2V
KTC3198YT
Q801
R805
4.7K
FL
50V/10uF
SIG16
CN66
C503
Q856
D600K
VR86 R879
330
D503
R808
POWER_MUTE
-1.2V
1SS133M
1.8kohm
R812
Q886 R818
47 (1/4W) SL_CH
C3423Y
R813
3.3
SL-CH
47 (1/4W)
Q804
L506
2SB1647
0.5uH
_VCC1
R822
SIG01
18(1/4W)
IPHONE_MUTE
VCC
R823
SIG00
18(1/4W) IPHONE_MUTE ADDED
OVER
Q805
Q877
2SD2560
KTA1360Y
SIG06
R819
3.3
+1.2V
KTC3198YT
Q802
R807
4.7K
Q851 CN67
D600K
R874
VR81
330
R809
GAIN
-1.2V
1.8kohm
R814
Q887 R820
C3423Y BR_CH
47 (1/4W)
3.3
R815
AVR270/2700
SBR-CH
Q807
47 (1/4W)
2SB1647
L507
AVR370/3700
0.5uH
_VCC
R824
18(1/4W) SIG01
SIG[00:60]
R631
18(1/4W)
Q657
2SD2560
R521 C571 R646
470 270P 3.3
Q501 Q858
KSA992FTA KTA1360Y
+1.2V
Q601
KSA992FTA
Q511 Q516
R576
10
Q855
D600K
VR85 R878
C601
12P KSC1845FTA
KSC1845FTA
330
Q556 Q561
R501
-1.2V
43K
Q541
KTC3198YT
Q881
R651
C3423Y
3.3
Q661
2SB1647
R636
18(1/4W)
R632
18(1/4W)
45.1 Q658
2SD2560
C572 47.3
R522 R647
470 270P 3.3
Q502 Q871
KSA992FTA KTA1360Y +1.2V
Q602
KSA992FTA
Q512
Q517
R577
10
Q857
D600K
R880
VR87
C602 330
KSC1845FTA 12P KSC1845FTA
Q557 Q562
-1.2V
Q542
KTC3198YT R652
Q882
C3423Y
3.3
Q652
2SB1647
R637
18(1/4W)
Q509
R529
3
4.7K
HVTKTD1302T
R633
FL-CH
18(1/4W)
Q659
2SD2560
R523 C573 R648
3.3
470 270P
Q503 Q872
680P-->270P
KSA992FTA KTA1360Y
+1.2V
Q603
KSA992FTA
Q513
Q518
R578
10
Q852
D600K
VR82 R875
220ohm-->100ohm
330
C603
KSC1845FTA KSC1845FTA
12P
Q558
Q563
R505
-1.2V
43K
Q543
KTC3198YT
R653
Q883
C3423Y
3.3
Q653
2SB1647
R638
18(1/4W)
Q508
R527
3
4.7K
HVTKTD1302T
AVR370/3700 ONLY
FL
R546
SIG16
0
FR
R547
SIG18
0
R561, R562,
R563, R564,
SL
R565, R850, R548
SIG13
R851
0
1.8K
SR
R549
1.6K SIG15
0
C
R550
SIG14
0
C924 0.1uF
D972 1SS355T SUB
R551
SIG12
D971 1SS355T 0
FOR ESD
SBL
R552
SIG17
0
C923 0.1uF
D973 1SS355T
SBR
R553
D974 1SS355T
SIG19
0
FOR ESD
+12V
FAN_H
DC PROTECTOR
VCC1
0V
MMBT5551
MMBT5551
SIG00
Q942 Q941
0V Q939
OVER RT1P144C CENT
SIG06
R-LEFT
Q943
KTC3198YT
MMBT5551
Q681 R-RIGHT
R671
4.7K
CN61
+12V
F-LEFT
Q938
+12V RT1P144C 0V
F-RIGHT
R676
1.8kohm
R666
SIG06
OVER PROTECT
47 (1/4W) C_CH
B-LEFT
R696
C-CH
47 (1/4W)
L501
OVERLOAD DETECTION B-RIGHT
0.5uH
_VCC1
CN10
SIG01
R747 4.7K
R746 4.7K
+12V
VCC
SIG00
OVER
R500
D981
SIG06
1SS355T
10K
CN11
+12V
KTC3198YT 0319 CHANGE
Q682
R672
R922 R921
4.7K
10(1W) 1W 22Ω
Q911
0.46W
R924 A1271Y
CN62
47K
Q915
MMBT5551
R677
1.8kohm
R923
FAN_H
R667
1R0(1W)
47 (1/4W)
R_CH
R926
R697
FR-CH
47 (1/4W)
L502
D970
0.5uH 1SS355T
_VCC
FAN1_ON
SIG01
FAN2_ON
D980
1SS355T
VCC
SIG00
OVER
SIG06
KTC3198YT
Q683
R673
4.7K
R937 0.1
R951 R800
R938 0.1
1.0 1K
Q937
MMBT5401
R971
10K
Q940
MMBT5401 J912
1 2
R678
1.8kohm
R668
47 (1/4W)
L_CH
R698
FL-CH
47 (1/4W)
L503
0.5uH _VCC
SIG00
VCC
SIG01
ET91
BN25
*DO NOT USE
_VCC
SIG01
SUB1_OUT
SIG12
SIG20
SUB2_OUT
SIG[00:60]
JK97
CJJ4P041W
JK98
MP
ISSUE
ANAM
MULTI. LAB
CJJ4P042W
2012.07.31
ONLY FAN USING
JK91
1
CENTER
C-CH_SPK
2
3
SL-CH_SPK SL
4
5
SR
SR-CH_SPK
6
JK92
1
+
SBL
FL-CH_SPK
-
2
3
+ SBR
FR-CH_SPK
-
4
5
+ FL
-
6
SBL-CH_SPK
7
+
FR
-
8
SBR-CH_SPK
9
0.047(M) C900
10
0.047(M) C901
JK92
0.047(M) C910 CJJ5Q012Z
0.047(M) C918
0.047(M) C919
0.047(M) C914
0.047(M) C917
BN15A BN15
Q912
A1271Y
SBL-CH SBL-CH_SPK
R925
47K FR-CH FR-CH_SPK
Q916
RT1N144C
SBR-CH SBR-CH_SPK
FAN1_H/S
FL-CH FL-CH_SPK
CN93
Q913
A1271Y
FAN2_BACK
CN89
C-CH
47K C-CH_SPK
Q917
RT1N144C
SR-CH SR-CH_SPK
SL-CH SL-CH_SPK
BN14A BN14
OC_DETECT
P_FAIL
Q952
MMBT5551
D903
1SS355T
Q950
KTA1266
Q951
MMBT5551
0315 CHANGE
BN20
L915
+VCC
JUMPER
GND
L916
-VCC
JUMPER
SUB1_OUT
J819
1 2 JK90
J820
1 2 2
SUB2_OUT
1
CJJ4M040Z
SUB Option
AVR270/2700 J819
J820
AVR370/3700
1 2 3
REVISION
SHEET
SCHEMATIC DIAGRAM
AVR270/370 10
MODEL
12
DESIGN CHECK APPROVE DRAWING NO
12459SCMZ
W.J.JUNG J.H.LEE W.Y.YANG
(MAIN)
1
2012.07.31 2012.07.31 2012.07.31 1