Kenwood KDC-W4044UA Service Manual page 31

P
DC IN
11 12 13 14
6 5 4 3
P ANT
D103 D101
E
R102 R101
4.7K 4.7K
R152
0
R111 R110
47K 68K
Q102
SERGE
R120 R119
DET
100K 47K R113
100K
C102
F
0.01
Q2
Q102
D109
R115
LINE
10K
R116
MUTE
6.8K
Q103
BU DET
W
B
20
5V
0V
SWITCHING
REGULATOR
IC51
6 5
L52
PG RUN
22uH
7 4 14.4V
BIAS VIN
8 3
FB SW
C57
9 2
VC BOOST
0
0.47
1
RT
BD
0.9V
5.1V
USB
CONTROL SW
+5V
for 16V SW
Q8
TP52
C15
Q9
22u16
+
R17
IC52
2.7K
HI-SIDE
SW
FL+B SW
5.1V
TP920
C3
0.1
C4 0.1 TP922
LED+B
AU8V
AM+B
TP924
C5
BU
220u16
BU5V
+
TP420
D5
CONTROL SW
for IC4
Q14
Q13
C70 R64
1000P 10
19
Y/W4044UG/W4044UGY/W413UA/W413UAY/W4544U/W4644UY (1/2)
Q
IC1 : 30622MGPB72FP
F1 10A
IC2 : E-TDA7719
(F52-0023-05)
IC4 : BD4914-V4
15 16
IC6 : E-TDA7851A
2 1 IC7 : E-TDA7478AD
IC8 : S-80836CNNB-J
IC10 : NOT UESD
IC51 : LT3684EMSE
IC52 : BD6538G
IC53 : R1114N331B-TR
IC251 : 74AHCT08PW
D1
IC252 : 74LVC08APW
IC900 : 92CD28AFG7BV2
IC950 : MFI341S2159
IC951 : NOT USED
C1
3300u16
Q2,8
+
Q3,9,51,101-103
C859
Q7,11,13
0.01
Q10,12,14,705
Q52
Q53,104,105
Q301
Q701-704
BU
Q902,905
Q903
GND
R106
3.3K
D1
D2
D3,101-104
D4,5,401,801,802 : 1SS133
D7
ACC
D51
R108 DET
D52
D106-108
10K
Q101
D109
D110
D304-306,601-606 : HZS7-E(A3)
C101 0.01
D311,312
D313
R109
22K
16V SW
TP51 Q52
Q51
FL+B AVR
CONTROL SW
for FL+B
Q10
R16
680
Q7
IC4
1
GND
14.4V
TP921 0V 2
P-CON
14.4V
0V 3
P-ANT
TP27 4
AUDIO
TP25 5
AM
8.1V
0V
14.4V 6
VCC1
TP30 13.7V 7
VCC2
5.0V 8
VDD
9
SW5V
5V
0V
10.3V
4.9V
2.5V
TP26 0V 10
SEL1
4.9V
TP31
2.5V
0V 11
SEL2
12
ILM
10.2V
C14
POWER
0.1
SUPPLY
IC
SIGNAL LINE
GND LINE
B LINE
R
KDC-W4044UA/W4044UAY/W4044UG/W4044UGY
KDC-W413UA/W413UAY/W4544U/W4644UY
: 2SB1565
: 2SC4081
: KRC403-P
: KRA303-P
: 2SB1443
: KRC404-P
: KRA307-P
: KRC410-P
: KRC407-P
: 2SB1689
: S2V60-5009F46
: HZS9-E(A1)
: D1F60-5063
: HZS11-E(C3)
: EC31QS04AG
: UDZW20(B)
: MTZJ6.8(B)
: HZS5-E(B1)
: KDS121-P
: AVRL1613R3FTA
: STZ6.8N
CAUTION : For continued safety, re place safe ty critical
com po nents only with manufacturer's rec om mend ed parts
(refer to parts list).
Indicates safety critical com po nents. To reduce the risk
of electric shock, leakage-cur rent or re sis tance mea sure-
ments shall be carried out (ex posed parts are ac cept ably
in su lat ed from the supply cir cuit) be fore the ap pli ance is
returned to the customer.
• DC voltages are as measured with a high impedance
volt me ter. Val ues may vary slight ly due to vari a tions be-
tween in di vid u al in stru ments or/and units.
S T
2SB1565
2SB1443
2SC4081
DAP202U
DA204U
X34-623x-xx (4/4)
1
2
3
4
5
6
7
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