JVC KW-XC404 Service Manual page 54

Q Q
3 7 6 3 1 5 1 5 0
Standard schematic diagrams
Main amplifier section
TU1 QAU0403-001
J1
QNB0190-001
L1
4.7u
Q1
2SA1365/F/-X
Q2
2SA1365/F/-X
Q3
RT1N141C-X
CN705
SW5V
QGB2027M4-22S
CD-L
GND
CD-R
CDMUTE
Q708
RT1N141C-X
CDREQ
Q707
RT1N141C-X
T E
L 1 3 9 4 2 2 9 6 5 1 3
R748 0
SI/SO
R749 0 SCK
LCDILL
VDD5V Q904
2SA1365/F/-X
L703 CD8V
47u KEYILL
POWER
PS2
Q905
RT1N141C-X
CDRESET
R760
R761
ANT
C715 R762
TEMP POWER 0.01
KEY0 CDMUTE R763
KEY1 CDRESET R765
KEY2 R766
R768
R770 47k
LCDILL
R772 47k
KEYILL
R774 47k
LCDCE
R775
LCDSCK
R735 47k
LCDDA
R736 47k
ACC5V
R776
RESET CSTMUTE
R778
14V CSTRST
R779
REMOCON
R759 47k
LCDRST
R773 47k
AUX_R
R771 47k
AUX_G
AUX_L
UDZW6.2B-W
UPD784217AGC340
SI
SO R719 22K
CN703
QGF0501F1-06X TAPE-L
GND
TAPE-R
9V
CD8V L702
w w w
47u
14V
CSTREQ
SI/SO
SCK
CSTMUTE
CSTRST
Q703 Q702
RT1N141C-X RT1N441C-X
C253
CH-R
C154
TAPE-L
C254
TAPE-R
SD/ST
C156
R152 R151
PLLDI
4.7k 47k
0.1
C256
R252 R251
SMETER
GND
4.7k 47k
0.1
C102 1/50 R101 12k TU-L
C202 1/50 R201 12k TU-R
R976
12k
D971
R971 220K C971
R972 220K
1/50
MC2838-X
R747
1k R745
1k
R744
1k
R743
1k R742
1k R741
1k R740
1k R739
RA701
1K
47k
R734
1k R733
1k
10k R732
R730
R728
R727
R726
R724
R722
R731
IC701
R718 2.2K
R711 47k
R713 47k
R705
10M
X701 X702
x a o
3.3k y
R721
R717 47k
R715 47k
. i
Q701
RT1N441C-X
CN704
QGA2006F1-02
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C259
0.22
IC151
BD3807K
2.2/50
2.2/50
EVOLDA
2.2/50
R153 EVOLCK
33k
C155
220P
C255
220P
C159
100/10
C160
0.047
RESET
D973
C973 CRS03-W
R980
12k
0.047
Q971 MUTE
Q951
2SC3928A/QR/-X
RT1P141C-X
D951
R977 1SS355W-X
47
Q Q
3 7 6
IC901 R2S25400DS-E
C714
0.1
L701
D903 1SS355W-X
47u
270
10k
1k EVOLCK
Q903
2SA1530A/QR/-X
1k
EVOLDA
10K
2.2k
2.2k LCDCE
2.2k LCDSCK
LCDDA
BUSI/O
BUSSCK
BUSSO
C710
SI/SO
1k
220/10
1k DIMOUT R921 47k
DIMIN
47K
47k
1K LEVEL
1k SMETER
1k MRC
Q921
10k
2SC3928A/QR/-X
10k KEY2
R922
KEY1
Q941
0 4.7k
RT1N141C-X
C711 Q922
TEMP
RT1N141C-X
220/10
C713
0.047
R781
SN74AHC126NS-X
IC781
100k
R782
22k
R783
u 1 6 3 100
2-2
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2 4
8 9 9
D331 D321
MC2836-X MC2836-X
IC181 LA47516
Q321
R321 KTD1304-X R322
820
180
R325
2.2K
R332
R331
820
180
R335
Q331
2.2K KTD1304-X
Q341
R345
KTD1304-X
2.2K
R341 R342
820 180
R355
Q351
KTD1304-X
2.2K
R351 R352
820 180
R181
C181 QFV91HJ-474Z
27k
C182 QFV91HJ-474Z R182
27k
R281
C281 QFV91HJ-474Z
27k
R282
C282 QFV91HJ-474Z
C286 C285
27k
0.1 0.1
D182 1SS355W-X R191
2.2K
R194
R193
47K
0
Q952
RT1P141C-X
D181 Q181
1SS355W-X RT1N441C-X
3 1 D906 5 CRS03-W 1 5 0 8 9 2
D904 CRS03-W
TEL
R902 ILL R901
9.1k QRE142J-102X
R906
10k Q901
2SA1365/F/-X
Q902
RT1N141C-X
CN902
Q923
QNZ0095-001
RT1N141C-X
m
R789
100k
R788
c o
330
R785
100
.
Parts are safety assurance parts.
When replacing those parts make
sure to use the specified one.
2
8 9 9
C185 C186
0.1 0.1
D285 CRS03-W
D286 CRS03-W
D287 CRS03-W
D288 CRS03-W
D185 CRS03-W
D186
CRS03-W
D187 CRS03-W
D188 CRS03-W
C287 100P
4 C288 9 100P 8 2 9 9
C289 100P
C290 100P
C187 100P
C188 100P
C189 100P
C190 100P
CN901
QNZ0611-001
SHEET 1