Read Harman Kardon HK 3700 Service Manual online
HK37_MAIN_MP_CUP12609Z-A_131205.sch-1 - Mon Dec 09 11:48:13 2013
HK3700/3770
2
A
B
1
2
3
4
5
D
C
B
A
6
C
D
APPROVE
CHECK
DESIGN
DRAWING NO
(AMP)
1
MODEL
SHEET
SCHEMATIC DIAGRAM
REVISION
1
2
3
4
5
6
7
MP
L-CH
R-CH
- 6
**THE UNIT OF RESISTANCE IS OHM.
K=1000 OHM, M=1000 KOHM
**THE UNIT OF CAPACITANCE IS MICROFARAD (uF).
1pF = 10 uF
**THIS SCHEMATIC DIAGRAM MAY BE MODIFIED AT ANYTIME
WITH THE IMPROVEMENT OF PERFORMANCE.
COMPONENTS IDENTIFIED BY MARK HAVE SPECIAL CHARACTERISTICS
USE ONLY MANUFACTURER'S SPECIFIED PARTS.
IMPORTANT FOR SAFETY. WHEN REPLACING ANY OF THESE COMPONENTS,
**IMPORTANT SAFETY NOTICE.
FROM SMPS B'D
+VCC
GND
-VCC
GND
-VCC
22 27
SPK1_Fr
SPK2_FL
SPK1_FR
SPK2_FR
-1.2V
+1.2V
C915
C916
OVERLOAD
P_FAIL
-12V
ADC_R
OC_DETECT
MAIN_VOL_DATA
TUNER_SCL
TUNER_SDA
MAIN_VOL_CLK
FUNC_MUTE
TUNER_MUTE
DC_PROTECT
HP_R
HP_L
ADC_L
+7.5VA
-7.5VA
+3.3V
FAN1_ON
+12V
AGND
REC_MUTE
SPK1_SEL
SPK2_SEL
AGND
2W 0.47Ω
*4
2W 0.47Ω
*4
L
R
L
R
HK3700 : 2SA1695
HK3770 : 2SC3856
HK3700 : 2SC4468
HK3700 : 2SC4468
HK3770 : 2SA1492
Q402,Q502
Q403,Q503
NJW1112_LATCH
NJW1194_LATCH
HK3700 : 6800uF/50V (KOSHIN)
HK3770 : 6800uF/63V (ELNA)
C915 , C916
FAN1_H/S
FAN
TEST
(S
HORT
)
AGND
NJW2753_R
NJW2753_L
AGND
HK3700 : 2SA1695
HK3770 : 2SC3856
Q403,Q503
HK3700 : 2SC4468
HK3770 : 2SA1492
Q402,Q502
DAC-FR
AGND
DAC-FL
DAC_FR
AGND
DAC_FL
FAN2_ON
AGND
Only HK3770
C924
0.1uF
D973
1SS355
D974
1SS355
ET901
R567
47K
R566
47K
R562
33K
C917
47/50V
R565
10K
R563
33K
R564
33K
C931
0.047u
C932
0.047u
R560
75K
R555
0.1
R556
0.1
R557
1.0
R558
1K
R559
560K
Q937
MMBT5401
Q940
MMBT5401
C516
16V/22uF
R569
47K
R568
47K
R561
33K
ET902
J914
D409
CVD1SS355T
D408
CVD1SS355T
C334
5600P(M)
C332
5600P(M)
C331
5600P(M)
C333
5600P(M)
C335
0.047u(M)
C336
0.047u(M)
13
24
5
6
RY33
13
24
5
6
RY32
R543
1K
R542
7.5K
R540
22K
R526
1.5K
C502
330P
R532
33K
C501
47uF/50V
R525
33K
R534
10
C511
0.01uF
R508
10(1/4W)
R509
10 (1/4W)
C507
18P
C506
330uF/63V
C504
220/50V
C505
330uF/63V
R529
270
R524
470
R527
100
R528
100
R523
1.6K
R522
1.6K
R517
560
R521
560
R519
560
R520
560
R518
560
R505
10 (1/4W)
R504
10 (1/4W)
R515
15K
R514
15K
R516
560
Q510
A1024Y
Q511
C3206Y
C503
270P
C508
180P
R512
220
R513
220
L202
0.5uH
R546
47 (1/4W)
R547
47 (1/4W)
R536
2.4K
Q501
KTC3114A
KTC3114A
C509
10/50V
Q508
A1024Y
Q509
C3206Y
R510
220
R511
220
Q504
2SA1859A
2SA1859A
Q505
2SC4883A
R502
2.2
R503
2.2
R506
100
R507
100
R533
330
D502
1SS133
R535
OPEN
R538
750
R541
270K
D503
1SS133
R545
4.7K
R530
47K
R449
1K
R448
7.5K
R446
22K
R424
1.5K
C402
330P
R430
33K
C401
47uF/50V
R423
33K
R431
10
C412
0.01uF
R408
10 (1/4W)
R409
10 (1/4W)
C409
18P
C407
330uF/63V
C405
220/50V
C408
330uF/63V
R429
270
R422
470
R425
100
R426
100
R421
1.6K
R420
1.6K
R417
560
R433
560
R419
560
R461
560
R418
560
R499
10 (1/4W)
R438
10 (1/4W)
R415
15K
R414
15K
R416
560
Q410
A1024Y
Q411
C3206Y
C404
270P
C410
180P
R412
220
R413
220
L204
0.5uH
R454
47 (1/4W)
R453
47 (1/4W)
R442
2.4K
Q401
KTC3114A
KTC3114A
C411
10/50V
Q408
A1024Y
Q409
C3206Y
R410
220
R411
220
Q404
2SA1859A
Q405
2SC4883A
R402
2.2
R403
2.2
R437
100
R439
100
R432
330
D402
1SS133
R440
OPEN
R445
750
R447
270K
D403
1SS133
R450
4.7K
R428
47K
R548
82(1/4W)
C510
10uF/100V
R549
82(1/4W)
C413
10uF/100V
VR203
220
VR204
220
D505
1SS133
D506
1SS133
D406
1SS133
12
CN41
12
CN51
D405
1SS133
8200UF/63V
8200UF/63V
C419
2200/16V
Q502
2SC3856
Q503
2SA1492
Q402
2SC3856
Q403
2SA1492
Q516
KSC1845
Q515
KSC1845
KSC1845
Q517
KSC1845
Q513
KSC1845
Q514
KSA992
Q512
KSA992
Q416
KSC1845
Q415
KSC1845
KSC1845
Q417
KSC1845
Q413
KSC1845
Q414
KSA992
Q412
KSA992
Q500
KSC1845
Q400
KSC1845
R571
R573
R572
R574
R495
R497
R496
R498
Q506
KTD2061Y
Q507
KTB1369Y
Q406
KTD2061Y
Q407
KTB1369Y
+
-
-
+
+
-
+
-
1
3
2
4
7
5
8
6
9
10
JK30
G900
J920
J921
J922
J923
J922
J923
1
2
J310
1
2
J311
1
2
J313
1
2
J314
1
2
J315
1
2
J316
1
2
J317
1
2
J318
J319
J345
J924
J925
J925
J926
J929
J930
J931
J932
J932
J613
J614
J615
J616
J617
J618
J619
J620
J621
J622
J611
G3
J404
R952
22K
R953
22K
D967
1SS355T
D968
1SS355T
R959 56K
C950
10V/470uF
R958
56K
Q911
A1271Y
Q912
A1271Y
A1271Y
Q915
MMBT5551
R924
47K
R925
47K
R928
2.2K
R929
2.2K
R933
4.7K
D964
1SS355T
C936
220/25V
R500
10K
R922
10(1W)
1
2
CN93
Q916
RT1N144C
R921
1W 22Ω
R747
4.7K
R746
4.7K
D970
1SS355T
1
2
CN11
D981
1SS355T
20
21
23
22
19
18
16
17
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
BN10
1
3
1
2
1
1
1
0
98
76
543
21
BN50
R501
10/1W
C520
0.047u
R401
10/1W
C440
0.047u
Q533
HVTKRC107S
Q532
HVTKRA107S
R550
47
R570
0
Q534
HVTKRC107S
Q536
HVTKRA107S
R580
47
D965
1SS355T
D966
1SS355T
Q913
A1271Y
A1271Y
R926
47K
R930
2.2K
R923
1R0(1W)
Q917
RT1N144C
RT1N144C
J623
J624
J624
J627
J626
J626
J625
J612
J628
J629
J630
J631
J632
J632
J633
J610
3
2
1
BN30A
J640
J641
J642
J642
J643
J645
32
1
BN60
ET904
J601
J602
ET903
P_FAIL
-VCC
+VCC
-VCC
+VCC
FL_IN
-VCC
+VCC
FR_IN
OC_DETECT
DC_PROTECT
DC_PROTECT
P_FAIL
NJW_DATA
NJW1112_LATCH
TUNER_SDA
TUNER_SCL
FUNC_MUTE
TUNER_MUTE
+3V3
TUNER_SCL
FUNC_MUTE
TUNER_MUTE
+3V3
-7.5V
+7.5V
+7.5V
ADC_R
ADC_L
HP_R
+12V
-12V
-12V
DC_PROTECT
CHGND
REC_MUTE
HP_L
RL_CH_OUT
RL_CH_OUT
RR_CH_OUT
RR_CH_OUT
AGND
NJW1194_LATCH
NJW_CLK
AGND
AGND
AGND
AGND
AGND AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND AGND
AGND
AGND
AGND
+12V
+12V
FAN1_ON
AGND
FAN1_ON
AGND
AGND
AGND AGND
AGND
OC_DETECT
AGND
NJW2753_R
NJW2753_L
AGND
SPK2
-12V
SPK1
SPK2
SPK1
SPK1
FAN2_ON
FAN2_ON
AGND
AGND
+VCC
+VCC
-VCC
-VCC
Harman Kardon
HK 3700 Service Manual
Page 103 of 109
Click on the first or last page to see other HK 3700 service manuals if exist.