JVC KD-LH7R Service Manual page 52

Q Q
3 7 6 3 1 5 1 5 0
Standard schematic diagrams
Receiver & System control section
J1 QNB0100-002 L1
5
B1 0
4.7uH
D1 D2
C1 C2
C39
1000P
R38 R39
100 0
C36
7P C38
1000P
IC31
TB2118F C37
C35
10P
10P
R37 2.2K
R36 PLLCE 2.2K
R35 PLLDA 2.2K
R34 PLLCL 2.2K
PLLDI
4
C46 0.01
C47 0.01
C49
10( 1/8W) 0.001
R43 R44
470 220
C32 C50
47P 100P
R32
6.2K
Q31
C34 C33 UN2211
0.047 47/6.3
CD.L-CH
GND
GND
CD.R-CH
9V
ON5V
T E
L 1 3 9 4 2 2 9 6 5 1 3
R786
0
CDMUTE
CDREQ
CDRESET
B.DET
3 BZ841
P.DET QAN0009-001Z
BUSSI/SO
BUSCLK
VDD5V
CD8V
Q841
UN2211
Q701 Q702 Q703
UN2211 UN2211 UN2211
CN101
QGB2027M4-22S
REMOCON
ACC5V
10V
ENC1
2 ENC2
LCDCE
LCDDA
LCDCL
KEY2
KEY1
KEY0
GND
CN701
QNZ0007-002
R806
R805
100k
CH.R
GND
CH.L
R804
22K
R803
100
CONT+B
C802
100P
w w w
IC801
HD74HC126FP
1 J801
QNZ0095-001
A B
eàYGNg u5•ïVþ•Q
KD-LH7R
C81 1/50 R81 8.2k
C91 1/50 R91 8.2k
1/50
C92
C5 R10 R82
820P
18K
C82
Q2
R92 820P
0
18K
C10 C4 0.015 Q1 C11 2SD601A( R) Q91 Q81
0.015
R3 2SD601A( R) 2SD601A( R)
4.7k
R93
R83
C9 4.7k
4.7k
Q3
10/16 C83
R5 UN2111
R11 0.1
47K
Q9
10K
UN2111
Q4
Q6
UN2111
2SB815 D3
1SS133
R7
4.7K
C71
FM/AM R6 560P
R8
47k 10K
Q7 R4
C77
UN2211 3.3K
47/6.3
C72
R2 C76 0.022
Q8
47K 0.01
UN2211
SD/ST
C75
R57 47P R71
C73
15k 2.2k
R54 R53 2.2/50
10k 47k
R58
C54
SQ
470 0.1
R1 C74
R72
82P R73
C52 X71
2.2k IC71 2.2k
0.01
QAX0263-001Z
SAA6579T
C55 R56
10k
0.47/50
Q52 Q51
2SC2412K( R) 2SC2412K( R)
R758
47K
R780 R781
47k 47k VSS
Q704
Q705
UN2211 UN2211 POWER
IC701
UPD784216AGC127
R720 1.2K
R719 0
C706
VDD
0.1
VDD5V
VOLDA
VOLCL
SUBWMUTE
R760
47k
R759 47k
AUX.L
AUX.G
AUX.R R714 47K
10k BUSSI/SO
VPP
BUSSO
I/O
R807
100K
R808
330
BUSINT
BUSSCK
R809
BUSCLK
22k
R810
100
X701
X1
C804
C801
22P
0.047
x a o
y
C730
0.047
. i
QAX0617-001Z
C
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KD-LH7R
D243
1SS133
C243
0.047
R245
100
C242
22/16
Q241
2SD601A( R)
IC161
R787
TDA7404D-X
10K
LEVEL
C173 1/50
C182 0.01
C163 1/50
TU.L C172 1/50 C181 100/16
R161
TU.R C162 1/50 2.2K
C171 1/50 R162 2.2K VOLDA
CH.L C161 1/50 R163 VOLCL
270K
CH.R
C177
D722 D721
0.0033
AUX.R C164 1/50
C175 22/16
AUX.G C174 1/50
R164
AUX.L C176
0.0033
0
R180
CD.L-CH
0
R182
CD.R-CH 0 C179
10/16
S702
Q Q
QSW0451-001
D781
3 7 6
1SS133
L701
4.7uH
R729
47K
IC771 BR24C32F-X
C711
C713
0.01
C771
0.047
R731
R730
47K
10K
S701
QSW0451-001
R732 10K
R733 10k
BUZZER
R734 2.2K
LCDCE
R735 2.2K
LCDCL
R736 2.2K
LCDDA
R737 0
I/O
R738 4.7K
BUSSCK
R739 4.7K
BUSSO
R740 4.7K
BUSSI/SO
TD RD
R741 10K SM
R742 10K SQ
LEVEL
R743 10K
R744 10K KEY2
R745 10K KEY1
R746 10K KEY0
ENC2
4.7K
R747
4.7K R748
4.7K R749
R766 47K
Q977
RESET
S703 R977
2SA1037
QSW0534-001 8.2K
R764
100
D713
R976
20K
UDZS5.6B-X
IC702
IC-PST600MG
R892
47K
X702 u 1 6 3
R757
R756 C710
2.2K
47K 47/6.3
Q891 C891
1SS355-X UN2211 0.1
QAX0401-001
2-2 D E
2 4
8 9 9
R244
12k R243
180k
C241
1/50
R242 R241
22k 47k
0
R177
C311
R311
R178 2.2/50
27K
0
R312
C312
27K
2.2/50
R313 R314
47K 47K
R303 R304
47K 47K
C301
R301
2.2/50
27K
R302
C302
27K
2.2/50
R342 820
R352 820
R351
D351
1SS355-X
2.2k
R341
2.2k
D341
1SS355-X
R167 0
0
D321
R168
1SS355-X
R321
2.2k
R331
D331
2.2k
1SS355-X
C724
0.1
R322 820
C782 R332 820
0.082
R782
R783 Q784
47K
1K UN2111
R784 47K
C781
47/6.3
3 1 5 1 5 0 D782 8 9
1SS133
C784
Q782
100/16
UN2211
C902
2.2/50
R901
1K( 1/4W)
IC901 HA13164A
D902
1SS355-X
m
R891 R881
47k
1K
c o
R882
4.7K
DIMMER
TELMUTE
.
Q881
UN2211
F
2
8 9 9
IC301 LA47503
C316
4.7/25
0.1 C322
0.1 C323
0.1 C324
0.1 C325
D991 CRS03
D992 CRS03
D993 CRS03
D994 CRS03
D995 CRS03
D996 CRS03
D997 CRS03
D998 CRS03
100P C961
100P C962
100P C963
100P C964
100P C965
C966
100P
100P C967
100P C968
D901
1N5401-F64
C901
2200/16
2 4 9 8 2 9 9
C727
0.1
D971
CRS03
CN901
QNZ0112-001
F1
QMFZ021-150-T
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
Rear signal
G H