JVC KD-LH7R Schematic
Block diagram
KD-LH7R
5
SEL
TEB
RFGC
TE,FE
RFDL
RF
RWSEL
IOP
IC571
24bit DAC
DACML
DACMC
DACMD
DACCS
DSPRST
VA,VB
VE,VF
MD,LD
IC601
CD RF
4
REST
REST
SWITCH
LOAD/FEED
MOTOR
SPINDLE
MOTOR
3
SW1,SW2
PICKUP
LOAD/FEED+
LOAD/FEED-
SPINDLE+
SPINDLE-
SW1,SW2
A,B,E,F
VR,MD,LD
FOCUS+
FOCUSTRACKING+
TRACKING-
CN601
LOAD/FEED+
LOAD/FEEDSPINDLE+
SPINDLETRACKING+
TRACKINGFOCUS+
FOCUS-
SW1,SW2,RESET
IC621
D.SERVO
DSP
FMO
DMO
TRO
FOO
IC681
CD DRIVER
BUS0
BUS1
BUS2
BUS3
BUCK
CCE
DSPRST
LOAD
LD/FE
CDON
IC501
CPU
SDO
LRCK
BCK
BCK
LRCK
DATA
MP3RST
MP3DA
PM3CK
/BUSIO
BUSIO
BUSSI
BUSSO
BUSSCK
VOUTL
VOUTR
IC653
SRAM
IC652
MP3 DEC
DISCSEL
CDMUTE
CDREQ
B.DET
P.DET
IC503
J-BUS
BUFF
IC572
CD LPF
CD.L-CH
CD.R-CH
IO0~IO7
AD0~AD16
OE,CE,WR
BUSSI/SO
BUSCLK
CN101
CN501
ANT
CD.L-CH
CD.R-CH
CDMUTE
CDREQ
CDRESET
B.DET
P.DET
BUSSI/SO
BUSCLK
DISCSEL
TU1
FM/AM
TUNER
FM/AMOSC
IC31
PLL
PLLCE
PLLDA
PLLCL
PLLDI
AUX.L
AUX.R
TU.L,TU.R
SEEK/STOP
SD/ST
FM/AM
MONO
SM
IC161
E.VOL
IC701
CPU
BUSSI/SO
BUSSO
I/O
BUSINT
BUSSCK
BUSCLK
VOLDA
VOLCL
OUTLF
OUTRF
OUTRF
OUTRR
CH.L
CH.R
FRONTL
REARL
FRONTR
REARR
LINE OUT
J321
INLF
INLR
IC301
POWER
AMP
INRF
INRR
OUTLF+
OUTLFOUTRF+
OUTRFOUTLR+
OUTLROUTRR+
OUOTRR-
CN901
SPK
BATT
2
J1
EN601
LCD
COM1~COM3
S1~S68
KEY0~KEY2
S601~S617
KEY
MATRIX
IC601
LCD
DRIVER
REMOCON
IC602
REMOCON
LCDCE
LCDDA
LCDCL
ENCODER
ENC1
ENC2
CN701
CN601
REMOCON
ENC1,ENC2
LCDCE,LCDDA
LCDCL
KEY0,KEY1
IC801
JVC BUS
SI/SO
SCK
J801
CHANGER
CONTROL
1
ABCD E F G
2-1
Standard schematic diagrams
KD-LH7RKD-LH7R
Receiver & System control section
J1 L1
QNB0100-002
0
5
R37
R36
PLLCE
R35
PLLDA
R34
PLLCL
PLLDI
4
CD.L-CH
GND
GND
CD.R-CH
9V
ON5V
R786
0
CDMUTE
CDREQ
CDRESET
B.DET
3
2
1
P.DET
BUSSI/SO
BUSCLK
VDD5V
CD8V
CN101
QGB2027M4-22S
REMOCON
ACC5V
10V
ENC1
ENC2
LCDCE
LCDDA
LCDCL
KEY2
KEY1
KEY0
GND
CN701
QNZ0007-002
QNZ0095-001
D701
J801
B1
4.7uH
Q1
Q53
UN2211
R59
R2
47K
R1
22K
R51
POWER
C706
0.1
VDD5V
VOLDA
VOLCL
SUBWMUTE
R760
R759
0.1
47K
R714
C81
C91
1/50
C5
2SD601A( R)
R3
4.7k
2SD601A( R)
12( 1/8W)
AFCKSMSEEK/STP
UPD784216AGC127
R720
R719
47k
R808
330
22k
TU.OSC
0
0.01
R9
Q5
2SB709A( R)
R56
10k
/CDREQ
47K
R801
D4
1SS355-X
R4
3.3K
C54
0.1
C53
0.0047
R781
47k
Q705
BUSSI/SO
BUSSO
R807
100K
BUSINT
BUSSCK
BUSCLK
0.015
C94
47K
R54
10k
Q51
2SC2412K( R)
CDMUTE
I/O
C804
22P
0.015
C84
0.015
R5
D5
1SS355-X
Q8
UN2211
R55
2.2k
/CDMUTE
C95
0.015
C85
R8
10K
R53
47k
C52
0.01
C51
R52
47k
330P
FM.VCC
TU.VCC
VT
1SS133
1SS133
D1 D2
C1
C39
1000P
R38
C725
C37
10P
UN2211
BUZZER
D719D720
0.01
47K
R802
Q701
C48
0.047
UN2211
C722
R805
C803
C40
Q31
POWER
0.01
D718 D717
100k
R804
22K
R803
100
C46
C47
47P
1000P
10/16
R43
470
C32
22P
100
C38
0.047
C41
B.DET
0.047
0.01
C42
C43
0.01
0.01
10( 1/8W)
R44
220
C50
100P
C721
C715
0.1
PS2
0.01
C36
7P
X31
QAX0616-001Z
IC31
TB2118F
C35
10P
2.2K
2.2K
2.2K
2.2K
R33
10K
R32
6.2K
C33
C34
47/6.3
0.047
BZ841
QAN0009-001Z
1K
R841
Q841
UN2211
C841
0.1/50
D704
D705
D707
D702
D709
D706
D708
D703
CH.R
GND
CH.L
CONT+B
C802
100P
220/10
AM.VCC
C3
C6
22/16
C2
R39
0
39K
10K
R40
R41
C44
0.01
R42
0.001
P.DET
C717
C716
0.1
0.1
R806
IC801
HD74HC126FP
0.01
0.047
220/16
C4
C10 C11
C9
10/16
R11
10K
Q6
2SB815
R7
4.7K
0.0027
FM/AM
R6
47k
Q7
C45
UN2211
SD/ST
R57
RESET
AUX.L
AUX.G
AUX.R
0.01
SQ
R31
10k
0.47/50
10( 1/8W)
UN2211 UN2211
CDRESET
R765
D714
15k
R58
470
C55
Q52
2SC2412K( R)
R780
47k
Q704
CDREQ
510( 1/8W)
SLR-56MC3F
R809
R810
100
C801
0.047
C49
UN2211UN2211
100/10
C31
Q703Q702
C720
R81
1/50 8.2k
R91
1/50
R10
Q2
0
Q91
2SD601A( R)
R93
4.7k
Q3
C83
UN2111
0.1
Q4
UN2111
D3
1SS133
C77
47/6.3
C76
0.01
C75
47P
C74
82P
X71
QAX0263-001Z
IC701
1.2K
0
VDD
47k
47K
VPP
0.047
8.2k
C92
R82
820P
18K
C82
Q81
2SD601A( R)
IC71
VSS
X1
220/10
C728
RDSDA
PLLDI
PLLCL
PLLDA
R755
R754
10M
X701
C705
C704
0.047
QAX0617-001Z
820P
C71
560P
C72
0.022
2.2/50
R73
2.2k2.2k
PLLCE
8P
C73
C703
FM/AM
820
100
R74
SEEK/STP
10K
R723
27P
C702
QAX0401-001
X702
AFCK
0
R724
R701
27P
47k
C701
CD.L-CH
CD.R-CH
S702
QSW0451-001
10K
R725
/CDREQ
22P
BUSINT
IC161
TDA7404D-X
1/50
C173
1/50
C163
TU.L
C172
R183
SD/ST
10K
R728
10K
1/50
C162
1/50
C171
1/50
C161
1/50
D722
D721
C164
1/50
C175
22/16
C174
1/50
C179
10/16
15K
R181
15K
R729
47K
IC771
R750
ENC1
BR24C32F-X
270
270
C771
0.047
R771
R772
R731
R730
10K
10K
R732
10k
R733
R734
2.2K
2.2K
R735
2.2K
R736
0
R737
R738
4.7K
R739
4.7K
4.7K
R740
BUSSI/SO
RD
TD
R741
10K
10K
R742
10K
R743
10K
R744
10K
R745
R746
10K
47K
R766
RESET
10K
R756
47K
1SS355-X
S703
QSW0534-001
R764
100
D713
UDZS5.6B-X
IC702
IC-PST600MG
C710
C709
0.01
47/6.3
D710
47K
S701
QSW0451-001
BUZZER
LCDCE
LCDCL
LCDDA
I/O
BUSSCK
BUSSO
SM
SQ
LEVEL
KEY2
KEY1
KEY0
ENC2
4.7K
4.7K
4.7K
220/10
R747
R748
R749
R757
2.2K
TU.R
CH.L
CH.R
C177
0.0033
AUX.R
AUX.G
AUX.L
C176
0.0033
R180
0
R182
0
MONO
10K
R726
R751
PS2
RDSDA
RDSCL
REMOCON
47K
C708
0.047
R753
R92
18K
R83
4.7k
Q9
UN2111
R71
2.2k
R72
SAA6579T
RDSCL
R758
47K
1K
10K
R721
R722
RESET
/CDMUTE
C730
220/10
C729
D243
1SS133
C244
R247
0.015
180K
C245
0.22/50
R787
10K
R162
R163
270K
L701
4.7uH
C711
C713
0.01
C707
0.047
LEVEL
C182
0.01
C181
100/16
R161
2.2K
VOLDA
2.2K
VOLCL
R164
0
R244
C243
12k
R245
100
C242
22/16
2SD601A( R)
D781
1SS133
Q241
R242
22k
47/6.3
R177
R178
C724
C782
0.082
C781
R243
180k
C241
1/50
R241
47k
0
0
R167
0
0
R168
0.1
Q781
UN2111
IC901
HA13164A
D902
1SS355-X
14.4V
C368C387
C367
C388
4.7/25
R784
D782
1SS133
4.7/25
4.7/25
4.7/25
R782
47K
UN2211
Q782
47K
1SS355-X
1SS355-X
1SS355-X
1SS355-X
R783
1K
47K
R368
47K
R389
R342
R352
D351
D341
D321
D331
R322
R332
D784
R311
27K
R312
27K
47K
R313 R314
R369
47K
R303
R301
27K
R388
R302
27K
R351
2.2k
R341
2.2k
R321
2.2k
R331
2.2k
UDZ11B-X
C902
2.2/50
1K( 1/4W)
150P
C341
2.2/50
47K 47K
47K
2.2/50
2.2/50
820
820
Q321
820
820
Q784
UN2111
C784
100/16
R901
C321
0.047
C311
2.2/50
C312
R304
47K
C301
C302
4.7/25
Q341
2SD1781K/QR/-X
2SD1781K/QR/-X
100
R323
100P
C313
100P
C303
IC301
100P
4.7/25
C314
100P
C304
C316
1K
R316
Q351
2SD1781K/QR/-X
Q331
2SD1781K/QR/-X
100
100
R343
R333
C305
100
R353
QNZ0112-001
D971
CRS03
LA47503
L901
CN901
D991
D992
D993
D994
D995
D996
D997
D998
D901
1N5401-F64
2200/16
QQR0703-001
C727
0.1
0.1
C971
D972
C901
CRS03
C317
CRS03
CRS03
CRS03
CRS03
CRS03
CRS03
CRS03
CRS03
C320
C319
0.022
0.022
C306
4.7/25
F1
QMFZ021-150-T
C318
47/16
C315
22/16
4.7/25
0.1
C322
0.1
C323
0.1
C324
0.1
C325
100P
C961
C962
100P
100P
C963
100P
C964
C965
100P
100P
C966
100P
C967
100P
C968
R972
R971
2.2K( 1/8W)
2.2K( 1/8W)
0.047
D242
1SS133
1k
R246
Parts are safety assurance parts.
When replacing those parts make
sure to use the specified one.
Tuner signal
CD signal
CD changer signal
Front signal
Q976
UN2211
Q891
UN2211
Q977
2SA1037
R977
8.2K
R976
20K
R891R892
R881
47k
1K47K
D891
D892
1SS355-X
1SS355-X
C891
0.1
UN2211
Q881
220/10
C909
220/10
47/16
0.01
0.1
0.01
C912
C908
C906
R882
4.7K
DIMMER
TELMUTE
C881
22/16
0.1
10/16
C914
C915
C911
C910
C904
100/16
47/16
220/10
22/16
R903 R902
C905
C907
4.7K 9.1K
C903
2-2
Rear signal
HABC DEFG
Loading...