Kenwood KDC-319/4019 Service Manual page 12

K L
BU BU
∗
E
N-F(3PRE)
REAR FRONT
R226 R225 R224 R223 R228 R227
22K 22K 22K 22K 22K 22K
Q204 Q203
Q202 Q201 Q206 Q205
Q404
Q203 Q201 Q205
PRE MUTE SW PRE MUTE SW PRE MUTE SW
(REAR Lch) (FRONT Lch) (NON-FADER Lch)
Q204 Q202 Q206
PRE MUTE SW PRE MUTE SW PRE MUTE SW
(REAR Rch) (FRONT Rch) (REAR Rch)
∗
F
0V or 5V
IC5
R207
8.0V 1 22K
16
VCC
SW2
R211
22K
R406 R208 15 4.0V
2 RL
SW1
1K 22K
R215
R212 22K
4.0V 3 RR 14 4.0V
22K
4.0V
R216 4
13 4.0V
22K
R213
4.0V 4.0V
5 12 22K
R214 R209
22K 4.0V 22K
6 FR 11 4.0V
FL
R210 R205
7 10 0V
22K 22K
SW R
R206 4.0V
9 0V
22K 8
GND
SW C
SWITCHING OP AMP
RR
FR
FL
RL
PON5V
A8V
E-VOL NOISE
MUTE SW BUFFER
22K
Q402
Q401
77
22K
3.6V
0V-3.5V
IC2
5V
0V
C409
0.1
4.8V
D202
D201
C406
0.1
C407 150P
C408 0.01
IC2
E-VOL/
NC/
MPX
A8V A8V
BU5V BU5V
7.5V 7.5V
ILL+B ILL+B
M N
J4
1 5 9
D GND J4 TOP VIEW
2 6 10 CLK DATA H Lch Rch CHCON
13 11 12 8 4
13
3 7 11 REQ C DATA C A GND RST MUTE
BU
9 10 6 7
4 8 12
Q1,2
FM+B SW
Q1
22K
40
22K
Q404
AUDIO
Q3
MUTE
Q3,4
DRIVER 22K
39
AM+B SW
22K
Q6
IFC
BUFFER
∗
76
Q6
63
∗
IC7
EEP ROM
IC9
1
5 4 0V
35 QUAL
SDA
GND
6 5V 3
0V 2
SCL A2
0V 36 RDDA
0V 7 2 5.0V
TEST A1
2.4V 3
5.0V 8 1 0V
VREF
VCC A0
C12
2.4V
330P 4
MPX
5.0V 5
OSEL
0V 6
GND
7
ARI
2.4V
8
FIL OUT
IC7
RDS DEMODULATOR
PON5V
BU5V
A8V
ILL+B
7.5V
BU5V
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
CN2
to CD MECHA
O P
ANT.
WH1
BUP D GND 1
3 2
L1
REQ H
52mH
2
5 1
(X25-xxxx-xx)
∗
A1
Q2 MODEL NAME UNIT No.
R1
1K
+B
KDC-419 (K) X25-9210-10
1
C1
RF GND
KDC-X459 (K) X25-9210-11
10u16 2
FM ANT X25-9210-12
R2 KDC-319 (K)
+
3
22K KDC-5020 (M) X25-9210-21
C2 0.01 AM ANT
4
KDC-5021Y (E2) X25-9212-71
OSC GND
5
KDC-5021 (E) X25-9222-70
+B FM +B
R3 Q4
KDC 506 (E) X25-9222-71
6
1K +B
AM +B
KDC-5021YV (E2) X25-9212-72
7
C3 C5
OSC GND
KDC-5021V (E) X25-9222-72
10u16 100u10
8
KDC-4019 (K) X25-9210-13
R4 OSC GND
+ +
9
22K KDC-5020R (M) X25-9210-22
C4 0.01 C6 W/N
10
OSC GND
0.01
11
Vt MODEL NAME UNIT No.
12
A8V A8V PLL +B
KDC-419 (K) X25-9210-10
13
79 IFC OUT KDC-X459 (K) X25-9210-11
14
KDC-319 (K) X25-9210-12
16 SDA
15
SCL KDC-5020 (M) X25-9210-21
18
16 X25-9212-71
L5 KDC-5021Y (E2)
DIG GND
4.7uH KDC-5021 (E) X25-9222-70
17
PON5V
VDD 5V
KDC 506 (E) X25-9222-71
18
NOISE OUT
KDC-5021YV (E2) X25-9212-72
19
KDC-5021V (E) X25-9222-72
G RDS OUT
20
KDC-4019 (K) X25-9210-13
AUDIO OUT
21
KDC-5020R (M) X25-9210-22
AMIF OUT
22
S-METER
L6
23
+B IF1 +B
4.7uH 24
C8
IF1 GND
100u10
+
C9 C17
R7 0.01 0.1
4.7K
∗
IC1 :
IC2 : TDA7407D
IC3 : TC74HC02AF
PON5V
IC4 : TA8273H
∗ IC5 : NJM2123V-TE2
H
IC7 : SAA6581T
IC8 : S-80830ANNP
∗
5V IC9 :
16
0V RDCK
5V
D1
0V 15
R6 C14
T57
D100-103
2.2K 27P
14
OSC O
D201-205,502,503
D207-214,504-507,701
D401
D402-405,408,508,601
C15
D406,907-911
13 27P
OSC I
D501
12 5.0V
VCC D510
0V
11
D702
EXT RES
10 0V
D703
TM
9 0V D704
FSEL
D901
D902-906
D912
D913
SIGNAL LINE
GND LINE
+B B LINE
BU5V
PANEL GUIDE EJECT KEY &
DET ILLUMI SW DSI ILLUMI SW
Q905
47K
R626 S1 Q906 Q907
470K
10K
C607
0.22
D913
P5V
ILL+B
D902 D903 D904
7.5V
D907 D908 D909
18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
CN3
Q R
CAUTION: For continued safety,
replace safety critical components
only with manufacturer's recommend-
ed parts (refer to parts list).
cates safety critical components. For
continued protection against risk of
fire, replace only with same type and
rating fuse(s). To reduce the risk of
D404,
B C D E F G H I J A1 C418 CP61 D506
electric shock, leakage-current or
405
NO YES YES NO NO NO NO YES NO X86-3240-11 NO NO NO YES
resistance measurements shall be
NO YES YES YES YES NO NO NO YES X86-3240-11 YES NO YES YES
NO NO YES NO NO NO NO YES NO X86-3240-11 NO NO NO YES carried out (exposed parts are accept-
NO NO YES NO NO NO NO YES NO X86-3240-11 NO NO NO YES
ably insulated from the supply circuit)
YES NO NO NO NO YES YES YES NO X86-3242-70 NO YES NO NO
before the appliance is returned to the
YES NO NO NO NO YES YES YES NO X86-3342-71 NO YES NO NO
YES NO NO NO NO YES YES YES NO X86-3342-71 NO YES NO NO
customer.
YES NO NO NO NO YES YES YES NO X86-3342-70 NO YES NO NO
YES NO NO NO NO YES YES YES NO X86-3242-71 NO YES NO NO
NO NO YES YES YES NO NO NO YES X86-3240-11 YES NO YES YES
YES NO NO NO NO YES YES YES NO X86-3242-70 NO YES NO NO
R653,
IC1 IC9 R611 R615 R617 R618 R619 R620 R621 R622 R909 W32
656
UPD784225GC156 BR24C01AF-W NO YES NO YES NO YES NO YES YES YES NO
UPD784225GC156 BR24C02F-W YES YES NO YES YES NO NO YES YES YES NO
UPD784225GC157 NO NO YES NO YES NO YES NO YES NO NO NO
UPD784225GC157 NO NO YES YES NO NO YES NO YES NO NO NO
UPD784225GC157 NO NO NO NO YES YES NO NO YES NO NO YES
UPD784225GC157 NO NO NO NO YES YES NO NO YES NO NO YES
UPD784225GC157 NO NO NO YES NO YES NO NO YES NO NO YES
UPD784225GC157 NO NO NO NO YES NO YES YES NO NO NO YES
UPD784225GC157 NO NO NO NO YES NO YES YES NO NO NO YES
UPD784225GC157 NO YES YES YES NO NO YES YES NO NO NO NO
UPD784225GC157 NO NO NO NO YES YES NO YES NO NO NO YES
Q1,3,401,704,901 : DTC124EUA
Q2,4,503,505 : 2SB1277(Q,R) or 2SB1434
Q6,201-204,402 : DTC143TUA
Q205,206 : 2SC2114K
Q403,404,507,705,902 : DTA124EUA
Q501,502,702,707 : 2SC4081
Q504,508 : DTC114YUA
Q506,703 : 2SA1576A
Q510 : DTC144EUA
Q701,706 : 2SA2057
: IMSA-6801 Q708 : 2SD2375
: MA4062-L Q903 : 2SD1760
: MA4068(N)-M Q905-907 : DTA114YUA
: AMO1Z
: MTZJ4.3(B)
: 1SS133
: DAP202U
: 1N5393G-M5
: MA4047-M
: MA4056(N)-M
: MA4091(N)-L
: MA4082(N)-L
: MA4110-L
: DAN202U
: B30-1567-05
: MA3062
(X89-xxxx-xx)
CN1
ILL-GND 18
ILL+B 17 +10.5V
VDD 16 +5V
D-GND 15
BU5V NC/DIMMER 14 14
RST 13 13
REMO 12 12
L-INH/L-RST 11 11
PANEL
5V SW D/A DATA/NC 10 10
L-DATAL 9 9
L-CE 8 8 EJECT
L-CLK 7 7
S1
L-DATAS 6 6
D/A CLK/NC 5 5
FLIP DET 4 4
EJECT 3 +5V
EJECT ILL 2
D905 D906
ESD-G 1
D910 D911
KDC-5021/5021V,506 (E/E,E) (1/2)
KDC-5020R,5021Y/YV (M,E/E) (1/2)
KDC-319/4019,5020 (K/K,M) (1/2)
P1
KDC-419/X459 (K/K) (1/2)
KDC-319/4019,5020
S T
indi-
J1
1 ILL-GND
2 ESD-G
6 3 L-DATAS
X16-
4 D-GND
J1
7 5 L-CLK
2/2
14 6 NC/DIMMER
8 7 L-CE
8 ILL+B A
9 9 L-DATAL
10 10 D/A DATA/NC
11 11 L-INH/L-RST
12 12 REMO
13 13 RST
5 14 D/A CLK/NC
4 15 FLIP DET
16 VDD