Kenwood RXD-803 Service Manual page 18

U V
(X13-773X-XX) (A/3)
A1 TUNER PACK
J1
FM 75
C135
GND
0.01
AM
E1
J2
6ch INPUT
R1
Lch 1 L
1K
R2
Rch 2
R
1K
J3
C
R82 R18
RSch 1
IC13
1K 22K
(BOTTOM VIEW)
E. VOL.
R81 R17
LSch 2
(Cch/Sch)
1K 22K
R70
3.3K
R25 W228
SWch 3
1K
R24 W227 R29
Cch 4
1K 10K
CN2
OPEN SW 1 1 58
CLOSE SW GND 2 2 59
IC19
TD SW 3 3 60
(1/2)
C73
TU SW 4 4 61 1u50 8
3
1
OPEN 5 5 63
+ 2
CLOSE 6 6 65
RTL 7 7 R20
R19 27K
RTR 8 8
CD : 9.4V
CD 9V 9 9 +9V 4.7K
CD GND 10 10
DC OFF 11 11 69
SLT SW 12 12 71
CD-Lch 13 13
A GND 14 14
CD-Rch 15 15
CD PROT 16 16 70
Q10
MCLK 17 17 28
R259
67
M DATA 18 18 30
10K
MLD 19 19 72
4.7V R258
BLKCK 20 20 20
66
820
SQCK 21 21 73
SUBQ 22 22 74 R261
68
D MUTE 23 23 75
10K
Q11
STAT 24 24 29
XRST 25 25 76
TRAY MOTOR
GND 26 26 DRIVER
+5V 27 27 +5V
RHTR 28 28 77
PS SW 29 29 78
4.9V
D +5V 30 +5V
W161 W196 3
A
OUT 31
A2
W157 W195
2
REMOTE
W165 W201 W229 1 SENSOR
GND 32
W231
NC 33
CN11
W X
4.9V
B
+B R59
4.7 5.0V
C58
2.6V
1/4W
560P
2.6V
4.9V
2.5V
IC12
X3
(BOTTOM VIEW)
RDS 4.332MHz
DEMODULATOR W175 W144
Q3
+12V +12V
12.2V 12.2V
Q3
POWER SUPPLY
(TUNER)
11.5V
Q4
TUNER : 4.5V
3.1V
3.1V L
4.8V
4.8V
3.1V
4.8V
4.8V
9.7V
R
4.8V
3.1V
R11 R79
4.7 56 1/4W
+12V +12V
IC19 12.2V
(2/2)
6
7
5
4
R86
4.7
1/4W
5.0V
+5V
+9V
+B
Y Z
B
CN6
17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
+5V
12.2V
+12V
5.0V
R343
10K
4.9V
80
T.P
79
T.P
78
T.P
77
T.P
76
T.P
75
T.P
74
VSS 7
C312
0.1 73
IC14
VDD 2
72
DOLBY DSP
T.P
71
T.P (BOTTOM VIEW)
70
T.P
69
T.P
68
T.P
67
T.P
66
T.P
65
T.P
0V
4.5V 4.9V
R320
4.7K
4.9V
+5V
+9V
AA AB
C
CN5
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21.5V
+12V
+12V
+5V
5.0V
+12V
+12V
+12V
+5V
12.2V
+B
C323
L.P.F
330P
IC17(2/2)
C351 R309 R311 R313 +12V
C325
2.2u50 3.3K 10K 10K 8
5
7 1u50
+
6
+
R317
15K
4.9V
C303
11.4V
C319
+B
1000P
L2 0.1
R347
1
R307
25
AVS 1
R301 1M
26 2.4V 22K
LO1
R329 47K
R303
15K R305
27 2.4V C333 47P
L IN
28 C305 33K
AVD 5 R321 R323 R325 R327
0.1 100K 1.2K 5.6K 8.2K
29 2 4
AVS 5
30 2.8V 3
C327
XC OUT
10u50
31 4.8V C339
C337
AVD X IC17(1/2)
+
0.1 3P
32 2.4V
XTLO
L.P.F
C313
33 2.4V C352 3P L.P.F
XTLI
IC18(2/2)
34 1000P
AVS X
5
C328 R324 R326 R328
35 2.8V 10u50 1.2K 5.6K 8.2K 6
XS OUT
+
36 8
C334 100P
AVS 6 R322
C307
37 100K
AVD 6 R330 47K
0.1
38 2.4V R304 R306
R IN
C133 15K 33K
39 2.4V 47P R302
LO2
22K R308
40
AVS 2
1M
C320
1000P R76
4.9V
C314
100P 100
R318
+B
15K
C46
2.3V
100P
IC18(1/2)
C326 R84
2
C350 R310 R312 R314
1u50 220
1
2.2u50 3.3K 10K 10K
3
+
+
4
C324
330P
L.P.F
+B
AC AD
12.2V
+12V
+12V
12.2V
35V
+5V
+20V
+9V
+12V
C99
1000P
11.0V
Q8
+B
R73
100
+9V
Q8
POWER
SUPPLY(DSP)
C87
3.3u50
23
+
C335 R219
3.3u50 220
1
R
+
C336 R220
3.3u50 220
7
L
+
11.4V
+12V
C88
3.3u50
+
+5V
+9V
+B