Harman Kardon HK 3700 Service Manual page 118

HK37_MAIN_MP_CUP12609Z-A_131205.sch-1 - Mon Dec 09 11:48:13 2013
Harman Kardon
6
D
L-CH
R533
FL_IN
330 47uF/50V
C
R-CH
R432
FR_IN
330 47uF/50V
B
OC_DETECT OC_DETECT
DC_PROTECT DC_PROTECT
OVERLOAD
P_FAIL P_FAIL
TUNER_SDA TUNER_SDA
TUNER_SCL TUNER_SCL
FUNC_MUTE
FUNC_MUTE
TUNER_MUTE
TUNER_MUTE
+3V3
+3.3V
FAN1_ON FAN1_ON
-7.5VA -7.5V
+7.5VA +7.5V
+12V +12V
-12V -12V
AGND
SPK2_SEL SPK2
SPK1_SEL SPK1
REC_MUTE REC_MUTE
ADC_R ADC_R
AGND
ADC_L
ADC_L
AGND
FAN2_ON
FAN2_ON
AGND
NJW2753_L
NJW2753_L
AGND
NJW2753_R NJW2753_R
A
NJW_DATA
MAIN_VOL_DATA
NJW1112_LATCH NJW1112_LATCH
NJW1194_LATCH NJW1194_LATCH
MAIN_VOL_CLK NJW_CLK
HP_L HP_L
AGND
HP_R HP_R
DAC-FR DAC_FR
AGND AGND
DAC-FL DAC_FL
BN30A
5
R508
10(1/4W)
Q514 Q512
Q506
KSA992 KSA992
KTD2061Y
C503
R524
Q504
2SA1859A
470 270P
Q510 Q508
A1024Y A1024Y R504
10 (1/4W)
Q516 Q515
KSC1845 KSC1845 R536
C501 R534
2.4K
Q501
10
KTC3114A
AGND
R538
C507
750
Q517 18P
10 (1/4W)
KSC1845
Q513 Q511 Q509
AGND
KSC1845 C3206Y C3206Y
2SC4883A
Q507
KTB1369Y
AGND R509
AGND 10 (1/4W)
R408
10 (1/4W)
Q414 Q412 Q406
KTD2061Y
KSA992 KSA992
C404
R422
2SA1859A
470 270P
Q410 Q408
A1024Y A1024Y
+1.2V R438
10 (1/4W)
Q416 Q415
R442
KSC1845 KSC1845
C401
R431 2.4K
Q401
10
KTC3114A
VR204
AGND
R445
C409
750
Q417 220
KSC1845
18P -1.2V R499
Q413 Q411 Q409
10 (1/4W)
AGND KSC1845 C3206Y C3206Y
2SC4883A
Q407
KTB1369Y
AGND
R409
AGND 10 (1/4W)
J404
FAN1_ON
FAN2_ON
J931 J921 J613 J619
J932 J922
J614 J620
J610 J923
J615 J621
J611 J924
J616 J622
J612 J925
AGND
J640 J643 J617
J929
J641 J618
J642
AGND AGND AGND
AGND
4
+VCC
R547
47 (1/4W)
R546
47 (1/4W)
L202
0.5uH
Q502
Q402,Q502
2SC3856
HK3770 : 2SC3856 R543
HK3700 : 2SC4468 Q500
1K
KSC1845
R540
22K
AGND
R505
Q403,Q503
HK3770 : 2SA1492
Q505
Q503
HK3700 : 2SA1695
2SA1492
AGND
+VCC
R453
47 (1/4W)
R454
47 (1/4W)
L204
0.5uH
Q404
Q402
Q402,Q502
2SC3856
HK3770 : 2SC3856
R449
HK3700 : 2SC4468 Q400
KSC1845 1K
R446
22K
AGND
Q403,Q503
Q405
Q403
HK3770 : 2SA1492
2SA1492
HK3700 : 2SA1695
+12V
Only HK3770
4.7K
R747
J601
AGND
D981 R500
J602
AGND
1SS355T 10K
R922 R921
Q911 Q912
A1271Y A1271Y
10(1W) 1W 22Ω
R924 R925
47K 47K
FAN1_H/S
Q916
RT1N144C
Q915
MMBT5551
AGND
AGND
R923
Q913
A1271Y
1R0(1W)
D970
R926
1SS355T
47K
D966 AGND AGND
Q917
RT1N144C
1SS355T
AGND
**IMPORTANT SAFETY NOTICE.
J645
COMPONENTS IDENTIFIED BY MARK HAVE SPECIAL CHARACTERISTICS
IMPORTANT FOR SAFETY. WHEN REPLACING ANY OF THESE COMPONENTS,
USE ONLY MANUFACTURER'S SPECIFIED PARTS.
J623 J627
J624 J626
**THE UNIT OF RESISTANCE IS OHM.
J625 J926
K=1000 OHM, M=1000 KOHM
J930
J628 **THE UNIT OF CAPACITANCE IS MICROFARAD (uF).
J629 - 6
1pF = 10 uF
J630
**THIS SCHEMATIC DIAGRAM MAY BE MODIFIED AT ANYTIME
-VCC J631
-VCC
WITH THE IMPROVEMENT OF PERFORMANCE.
J632
J633
+VCC
+VCC
3 2
RY33
R L
D409
CVD1SS355T
Q533
HVTKRC107S
DC_PROTECT
R550
47
AGND
R580
Q532
HVTKRA107S
47
HVTKRA107S
-12V
R555 0.1
+VCC R557 R558
R556 0.1
1.0 1K
Q937
MMBT5401
Q940
MMBT5401
AGND
AGND
-VCC
MP
HK 3770 Service Manual
1
J310
1 2
J311
1
1 2 + SPK1_Fr
RY32
-
3
J313
1 2
L J314
R 2
1 2 + SPK2_FL
-
4
J315
1 2
J316
7
1 2 + SPK1_FR
D408 -
5
J317
1 2
CVD1SS355T J318
8
1 2 +
SPK2_FR
Q534
-
6
HVTKRC107S
9
AGND
10
Q536
AGND AGND AGND AGND
AGND AGND AGND
OC_DETECT
P_FAIL
AGND AGND C915 , C916
HK3770 : 6800uF/63V (ELNA)
HK3700 : 6800uF/50V (KOSHIN)
+VCC
GND
-VCC
G900
J914
J920
C924 0.1uF
D973 1SS355
AGND
D974 1SS355
AGND
CHGND
REVISION 2 4 6
1 3 5 7
SCHEMATIC DIAGRAM
HK3700/3770
MODEL
DESIGN CHECK APPROVE DRAWING NO
Page 118 of 120
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