JVC KW-XC88 Service Manual page 76

Q Q
3 7 6 3 1 5 1 5 0
Standard schematic diagrams
Main amplifier section
TU1 QAU0223-001
J1
QNB0100-002
L1
4.7
Q2
2SB815/7/-X
IC21
TB2118F-X
C32
10/16
PLLCE R28 2.2k
PLLDA R27 2.2k
PLLCL R26 2.2k C31
0.047
PLLDI R25 2.2k
SEEK
ANT C26 0.01
MONO C25 0.01
FM/AM
R23
0
C38
0.047
IOP
CDON
9V T E
L 1 3 9 4 2 2 9 6 5 1 3
LM1
LM0
REST
SW1
SW2
SW3
SW4
CD-Lch
CD-Rch
BUS0
BUS1
BUS2
BUS3
BUCK
CCE
LSI_RESET
CDRW
CD8V
C183
CN701
QGB1004K1-20
R182
AUX-Lch
1k AUX-GND
R282
AUX-Rch
1k
KEY0
KEY1
KEY2
L999 KEY3
ON5V
47 LCD-RESET
LCD-CE
LCD-SCK AJ
LCD-DATA
Q918
UN2111-X
ACC5V ILL R925
D185
27K
UDZS6.2B-X
B-LED-CONT
UN2211-X Q919
UN2211-X
Q941
CN702 RST-OUT
QGF1016F3-21 GND
CH-Rch
L782
CH-Lch SI/SO R784
1.8 22k
C783 100p
SCK
C784 100p
L941
10 MUTE-OUT
TAPE-PREQ
w w w C943 0.01
L942
R779
L781
47 330
R781
1.8u
22k 10k
TAPE-Rch R780
TAPE-Lch
R291
CH-Rch 4.7k C291
1/50
R271 0
TAPE-Rch C272
1/50
R241
CD-Rch 0 C242
1/50
TUNER-Rch
C281
4.7/25
AUX-Rch
AUX-GND
C182
22/6.3
Q1
C181
UN2211-X
4.7/25
AUX-Lch
TUNER-Lch
CD-Lch R141 0
C142
C212 C214
R211
Q3 1/50
R171 0
2SB815/7/-X TAPE-Lch C172
4.7/25 4.7k 4.7/25
C112 C114 1/50
R111
R191
CH-Lch C191
4.7k 1/50
4.7/25 4.7/25 4.7k
Q4
UN2211-X
D83
C82 1SS355-X
R84
Q91
L21
12k
UN2111-X 0.047
D91 D81
47 R147
MA152WK-X
120k
1SS355-X C81
1/50
R247 R85
120k
390
Q81
D92
2SD601A/RS/-X
1SS355-X
R743
R742
R741
R740
R739
R756
R757
R758
R760
R761
R762
CDON
R759 1k
C798 0.01
R797
R796
47K
R755
R786
R787
R788
R789 47k
R799
R764
MUTE-OUT R765 1k
RST-OUT R766 1k
R767 10k
BUS0 R768 330
BUS1 R769 330
BUS2 R770 330
BUS3 R771 330
CDRW R772
3.3k
IC701
R718
BUS_SI
R717
BUS_SO
R716
BUS_I/O
R715
R707
Q943
10M
UN2213-X
x a o
y
Q701
X701 X702
. i UN2211-X
QAX0617-001Z QAX0401-001
http://www.xiaoyu163.com
IC951
M61508FP-X
Q903
UN2111-X
Q Q
3 7 6
47k
47k
47k
47k
C710 0.01
47k
C709 0.01
ACC5V
D914 1SS355-X
R971
AJ 0
CD8V
R736
D917
ILL
C733
100p
R733
2.2k LCD-CE
C714
R735 2.2k LCD-SCK
R734 LCD-DATA
2.2k
47/6.3
R732 BUS_I/O
1k
C715
R731 BUS_SCK
1k
R730 BUS_SO ON5V
1k
BUS_SI
Q914
2SB709A/QR/-X
R729
1k B-LED-CONT PS2
R727 1k TEL
R728
1K IOP
R725 1k
Q920
S_METER
R721
10k KEY3
R928
R720 10k KEY2
R719
10k KEY1
3.3k
47k
TH795
47k
NAD0028-103X CN706
47k
IC791
IC-PST9333U-X
u 1 6 3
Parts are safety assurance parts.
When replacing those parts make
sure to use the specified one.
2-2
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2 4
8 9 9
C201
R203 R201
0 0 1/50 R221
IC901
20k
LA4743K
C202
R204 R202
1/50
0 0 R222
20k
R103 R101 C101
1/50
0 0 R121
20k
C102
R104 R102
1/50
0
0 R122
20k
D993
D994
D995
Q102 Q202
D902
D996
1SS355-X
Q901
UN2211-X
Q101 Q201
C911
2200/16
3 1 5 1 5 0 8 9 2
D913 D911
CRS03-W
1N5404-TU-15
IC911 HA13164A
R914 R913 B231 0
9.1k 1k
B131
0
CN951
QNN0175-001
QMFZ047-150-T
R918
47k
Q911
UN2211-X
R917
4.7k
m
c o
.
2
8 9 9
D981
D982
D983
D984
D985
D986
D987
D988
C991 100P
C992 100P
4 C993 100P 9 8 2 9 9
C994 100P
C995 100P
C996 100P
C997 100P
C998 100P
C981 0.1
C982 0.1
C983 0.1
C984 0.1
SHEET 1