Kenwood RXD-303 Service Manual page 19

U V
(X13-771X-XX)
A1
TUNER PACK
J1
W189
FM(75)
ANTENNA GND
AM
Q3
POWER SUPPLY
ON/OFF SW
(TUNER)
J2
R1 C3 1u50
Lch 1
+
2.2K
MD/DVD
INPUT
R2 C4 1u50
Rch 2
+
2.2K
W201
P1
R15 R17
2.2K 2.2K
A2
C
3
D OUT 9.3V
LPF
2
+5V +5V
1 +9V
GND
4.9V
CN2 R16 R18
2.2K 2.2K
C150
GND 33
0.01
GND 32
D OUT 31
R21
+5V 30 +5V
B
R61
PSSW 29 78
PHTR 28 77
5.0V
+5V 27 +5V
GND 26 +B
XRST 25 76
STAT 24 29
D MUTE 23 75
C225
4.7u50
SUBQ 22 74
SQCK 21 73 +
R55
Q9
10K
BLKCK 20 20
MLD 19 72
M DATA 18 30
MCLK 17 28
CDPROT 16 70
TAPE : 0.7V
CD-Rch 15
A GND 14
48
CD-Lch 13
50
50
SLTSW 12 71
49
49
DC OFF 11 69
48
CD GND 10
47
47
CD 9V 9 +9V
46
RTR 8 46
45
45
RTL 7
44
44
CLOSE 6 65
43
43
OPEN 5 63
R223 220 42
TUSW 4 61
42
TDSW 3 60 R222 220 41
41
CLOSE SW 2 59 40
R221 220
40
OPEN SW 1 58
R220 220 39
39
CN21
R219 220
38
38
PSSW 29 78
R218 220
37
PHTR 28 77
37
5.0V
+5V 27 +5V R217 220 36
36
GND 26 35
35
XRST 25 76
34
34
STAT 24 29 33
33
D MUTE 23 75
31
SUBQ 22 74
R216
32
32
SQCK 21 73
31
220
BLKCK 20 20
MLD 19 72
M DATA 18 30
MCLK 17 28
CDPROT 16 70
CD-Rch 15
A GND 14
CD-Lch 13
SLT SW 12 71
DC OFF 11 69
CD GND 10
CD 9V 9 +9V
RTR 8 8
RTL 7 7
CLOSE 6 65
OPEN 5 63
TUSW 4 61
TDSW 3 60
+B
CLOSE SW 2 59 +5V
B
OPEN SW 1 58
+9V
W X
RDS
IC12
DEMODULATOR
R52 47K 1
QUAL RDSCLK
R53 100 2
6 RDSDATA
C51 2.2u50 2.6V 3
VREF
+
C52 270P 2.6V 4
MPX
Q4
4.9V 5
+5V AVDD
CONTROLLER
12.2V
6
(Q3)
AVSS
C58 560P
0V 7
Q3 R58 4.7K
CIN
2.6V 8
C218 C53
SCOUT
12.2V R57 TUNER : 11.5V
220P 0.01
4.7K
+5V
+12V
C43 5600P
IC4
R19
3
(1/2)
2.2K
2
1
C69
8 67
47P
66
C70
R20 68
47P 6
7 2.2K
5
IC4 8
4
(2/2)
C44 5600P
R22 10
B
-14.7V
4.7V
+B
+5V
TAPE
MUTE
A EQ
A/B
TAPE MUTE
A SOL
CPM
B SOL
BEAT.C
BIAS
B PLAY
R REC
B PACK IC101
(BOTTOM VIEW)
A PLAY
u-COM
A PACK
B CrO2
F REC
FLRST
FL-CE
FL-CLK
A CrO2
FL-DATA
10MHz
R208
X1
4.7M
4.7V
20
21
+B
+5V
B
+9V
Y Z
B
R51
16 2.5V 100
15
T57 C54
27P
14 2.3V
OSCO
C55
13 1.8V 27P
OSCI
X3
4.332MHz
12 4.9V
DVDD +5V
11 C56
DVSS
0.01
10
TEST
9
TSTLD
C57
R59
47u25
4.7
+ 1/4W
+5V
+12V
MUTE 7
ON : 2.1V
6
OFF : -1.6V
C60 1
R263
C207
1.5K
22u50
R270
+
R261
Q102
10K 47K
R256
-14.7V
R260 47K
820
ON : 0.2V
R259
OFF : 4.7V
Q103
10K
R265
Q101 Q104
1.5K
MUTE ATT
81
5.0V
+5V
R273 1M
TUNER : 4.7V
C206 0.1
OTHER : 0V
79
81
81
ATT
82
POWER 82
83
SP RELAY 83
84
EV CLK 84
85
EV DATA 85
R244 220
86
EMPHASIS 86
87
EPROM DATA
C209 1000P
88
EPROM CLK
R246
89
PROTECT 89
220
90
SPEANA
R250
91
TYPE
R251 10K
R247 220
92
BPH 92
R248 220
93
APH 93
94
KEY3 94
95
KEY2 95
96
AVSS
97
KEY1 97
98 5.0V
VREF +B
99 4.7V
AVCC(BU) +B
100 R249
PLL DATA 100
220
R277 47K
R201
220
1
R202
10K R203
C226
3
220
220P
+B
+B
+5V
B
+9V
AA AB
CN1
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
+12V
12.2V
9
R271
D101
1K C167
R281 470K 0.1
R272
D102
1K R282 470K
35V
+5V
+B +B
+12V
2.4V
IC11
INPUT
SELECTOR
E.VOL
5.0V
9
+B
+B
4.7V
R114
1K
Q8
C219
220P
35V
11
12.2V
+12V
+9V +9V
+9V AVR
+5V AVR
11.5V
+5V
9.3V
5.0V
Q14
Q13
R158 R160
5.5V 100 9.8V 10
+B
C106
0.01
B
A
B B
WH4
AC AD
5.0V
35V
+5V
+12V
R5 470K
R9 7.5K
BASS MID TRE
SURROUND
BASS MID TRE
R10
7.5K
2.4V
R6 470K
D12
+B +B
5.0V
D13
+B OUT IN
GND
5.4V
5.0V
+B
IC2 5.0V
C113
1u50
OUT IN
+
GND
Q5
D9
4.8V
35V
C166 1000P 5.0V
Q11
+12V AVR
R150 120 2W
Q15
25.0V
Q11
+5.0V AVR
+
+12V +B +B
5.6V
Q15
5.5V
R162
R155 R154
3.9K
20.0V
10 620
1/4W
23.7V
Q12
R170 R153
10 330
20.0V
6.1V
+B
+B +B
B
B