Kenwood RXD-803, Service Manual

Page: 19 / 35

AE AF AH AJ AL AN AG AI AK AM
BASS2 MID2 TREBLE
2
B
A
A
B
SW
LOUDNESS
VOLUME2
MAIN
SELECT
OR2
IN OUT
T
ONE
B
A
REC-C SW REC-A
SW
SELECTOR
VOLUME
A B B A
SURROUND
MICRO COMPUTER INTERFACE
SW
LOUDNESS
SELECT
OR1
INPUT
T
ONE
VOLUME1
MAIN
B
A
REC-C SW
REC-A
SW
VOLUME1
INPUT
A
B
VOLUME2
INPUT
BASS1 MID1 1
TREBLE
B
A
SELECTOR
VOLUME
VOLUME2
VOLUME1
42 40 41 38 39 36 37 34 35 32 33 30 31 22 26 28 29 27 24 25 23
1
3
2
5 4 7 6 9 8
11
10 13 12
21
17 15 14 16 19 18 20
REC-B SW REC-B SW
REF AMP
.
INPUT
AT
T
S
W
AT
T
S
W
INPUT
10
11
12 13 14 15 16 17 18 19 20
REM RDS CLK BLKCK VSS X IN VCC(BU) NMI XC IN XC OUT RST X OUT RDS DA
T
A
PLL
CLK
BYTE CN VSS
8 9 6 7
PLL
CE
ST
4 5
SD
3
25
21
CE BEEP
SOUND
PLL
DO
SC RELA
Y
D XRESET
23 22 24
D XLA
T
A-MUTE MCLK S
TAT
27 26 28 29
M DA
T
A
30
FL-DATA
FL CE
HP DET
FL-CLK
31
32
33
PS LOAD
SOL B
D DATA
D REDY
D SCK
34
35
36
37
CPM
SOL A
EX CLK 15
38
39
40
41
ATT
PS IN
EX CLK 16
EX DT
42
43
44
45
FLRST
LED P
46
47
LED V
LED 3S
48
49
50
CD PROT
DC OFF
VCC(BU)
CLOSE SW GND
OPEN SW
LED TIMER
LED STBY
M CONT
A
M CONTB
54
VOL
B
52 53 58
NC
VOL
A
56 55 57
TU SW TD SW
60 59 61
CLOSE
VSS
OPEN
63 62 65 64
RT
R
RT
L
BRKM
67 66 69 68 70 51
SL
T
SW
D MUTE
PHTR
PS SW
XRST
78 77 76
SQCK SUBQ
MLD
75 74 73 72 71
1 2 3 4 5 6 7 8
A
PLA
Y
B P
ACK
R REC
B PLA
Y
CLK INH
CLK
GND
16 15 14 13 12
11
10
9
VCC LOAD A
P
ACK
PS IN F
.REC
B CrO2 A
CrO2
CLR
1 2 3 4 5 6 7 8
VSS
D
ATA CLK
BIAS NOR
B SOL A
SOL
CPM
16 15 14 13 12
11
10
9
VDD BEA
T
.C
R/P A/B A E
Q
R MUTE B EQ T
MUTE
10MHz
X1
X2
C204
0.01
1u50 C353
+
C203
22P
R209 100K
C202
18P
4.7M
R208
R23 220
R22 47K
R206 100
W186
7
R205 100
R33 47K
R54 47K
R204 100 R203 100
3 4 5
C134 47P
6
1
R267
R21
1 100
R51 220
W190
R213 100
C205 0.01 R214 10K
1K
R218 100
30 29 28
24 23 22 19
18
C208
0.01
R215 R223
1.5K
R266
R217
100
R207
C211 100P
220
R216
R212
48
47
49
50
45
44
43
42
41
39
40
38
36
35
37
34
32
33
31
47K
R224 220 R225 220 R226 220 R227 220
R231 100 R228 100 R229 100 R230 100
R240 4.7K R241 4.7K R243 4.7K R242 4.7K
R237 47K
R232 100
R238 4.7K
R233 100 R234 100 R235 100
R222 4.7K
R236 100
R239 4.7K
54
51
53 52
75 59 58
56 55
63
61
60 70 68 69 67 66 65 74 73 72
71
78 77 76
R253
47K
R252
47K
10u50
C31
+
1u50
C72
+
470P
C10
1u50
C8
+
1u50
C6
+ 10u50
C12
+
2.2u50
+
+
10u50
C32
0.1
8200P
C24
8200P
C26
MAIN
10u50
C28
+
C122 100P
47u10
C34
+
100P
C45
1000P
C86
7.5K
R10
470K
R6
7.5K
R8
5600P
C22 C20
0.1
C16
0.039 C138
C18
100P
C30
220
R12
4.7
R14
1/4W
1u50
C7
+
1u50
C71
+
1u50
C5
+
470P
C9
10u50
+
C1
1
0.039
0.1 0.1
8200P 8200P 5600P
+
C25
2.2u50
+
C27
10u50
C121 100P
100P
C29
220
R13
C15
C137
C17 C19 C21 C23
7.5K
R9 R5
470K
100P
C123
1000P
C85
7.5K
R7
C68 470P
0.01 C69
R49 220 R48 220 R46 220 R47 220
R41 220
220
R43 220 R42 220
R44 220 R45 10K
R62 10K
100P
C210
1
3 4 5
9 8 7 6
R40 220
42 43
41
C61 100P C62 100P
R61 1K
0.1
R210
R63 1K R64 1K R65 1K R66 1K R67 1K
18 17 15 12
23
19 13
0.01
C59
IN OUT
GND
C105
1K
R101
270
R1
17
330
R103
C101
+
1u50
C136
+
10u50
C102
+
OUT IN
GND
22K
R105
R104
2.2K
10u50
C104
+
C106
0.01
1K
R106
IN OUT
GND
47P
C107
1000u6.3
C141
+
1K
R108
100u10
C108
+
10K
R107
C109
330u6.3
+
100K R1
13
1000P
C139
1K
R114
1u50
+
C113
10K
R1
16
1u50
C1
10
+
4.7u50
C42
+
1K
R71
90
470
R254
5.6K
R255
47K
R256
22u50
C207
+
47u25
C70
+
R265 R263
47K
R264
470
C213
10u50
5.6K
+
46
27
10K
R78
3.9K
R77
12
13
35V
46
27
47K 220
84
85
C124
100P
+20V
26 25
20
L
R95
C78
100u10
C81
1500P
R100
10
+
2.2K
C84
C92
100P
C91
100P
100K
R97
100K
R98
100K
R96
100K
C82
1500P
2.2K
R36
220
0.068
R91
2.2K
1/4W
R99
820
C93
5600P
+
2.2u50
R89
2.2K
C83
0.068
C79
R93
47
R94
47
R90
C80
5600P
R92
C94
2.2u50
+
220
R35
6 5
GND
3 4 2
7 8
VCC
1
12
R39
Q13
24
R32
470K
R28 470K
23
44 45
220 R50
R38
1K
1K
R37
R60 220
C206
1M
Q12
R109
32.768KHz
W62 W46 W102 R111
10K
R102
2W 2W
A P
H
B PH B EQ GND +12V R-REC L-REC (BIAS) R-PLA
Y
12V BIAS L-PLA
Y
31
R87
470
23
4700P
C96
R88 470
29 30 28
93 92
24 25 26 27 21 22 23
+5V PLA
Y
-B
P
ACK-B
PLA
Y
-A
R REC CR-B CR-A CPM SOL-A SOL-B F REC BIAS A E
Q
BEA
T
.C
REC T
APE
NOR P
ACK-A
6
6
9 8 7
38 39
15 80 81 19 18 17 13
13
A/B
17 18 19 20
R/P
14 15 16 10 11 12 7 8 9
5 4 3 1
3 4 5 1 2
C95
4700P
MECHA (MECHA) GND MUTE MUTE
+20V +20V
35V 35V 35V
+9V +9V
+9V
35V
1/4W
40
A2
SELECTOR
VOLUME
SELECTOR
VOLUME
A1
+B
+B
PS
MAIN
+B
+B
+B
+B
+B
+B
+B
+B
+B +B
+B
+B +B
+B
+B
+B
+5V
+B
+5V
+B
B
+5V
+5V
B
+5V +5V
+5V
+5V
+5V +5V
+5V
+B
+5V
+B
+5V +5V
+12V
+12V
+5V
+5V
+B
+5V
IC11
IC4
IC15
IC16
IC5
IC1
IC2
IC20
(X13-773X-XX) (A/3)
(BOTTOM VIEW)
(BOTTOM
(BOTTOM VIEW)
Q2
Q1
TAPE
MUTING
EX-
IC
EXPANDER
IC
D4
D6
D5
D3
D1
D2
D10
D18
D8 D7
Q6
Q5
RELAY ON/OFF
D12
D13
D9
RESET IC
D17
RESET
+5.1V AVR
Q12
Q9
D22
Q13
D14
ATT
MUTE
BASS CONT. ON/OFF
E. VOL.
(FLch/
FRch)
BASS CONT. ON/OFF
D15
BUFFER
VIEW)
D24
D23
u-COM
Q7
D1
1
CN1
PANDER
9.6V
5.0V
5.0V
-34.0V
4.3V
OFF : 4.5V
MUTE ON : 0V
4.9V
0V 0V
: 4.9V : 4.9V
A CrO2 B CrO2
5.0V
B : 0V
A : 4.9V
0V
A : 0V
B : 4.9V
A : 0V
B : 4.8V
4.9V
4.9V
REC :
0V
: 0.7V
A/B PLAY
B Nor : 4.7V
B CrO2 : 0V
2.8V 2.8V 2.8V 2.8V 2.8V 2.8V 2.8V 2.8V
2.8V
2.8V 2.8V 2.8V 2.8V 2.8V
2.8V
2.8V 5.7V
0V
0V
2.8V 2.8V 2.8V
2.8V 2.8V
2.8V 2.8V 2.8V
2.8V 2.8V 2.8V 2.8V 2.8V 2.8V 2.8V 2.8V 2.8V 2.8V
1.2V
1.2V
9.6V
5.0V
4.5V
4.5V
4.5V
4.9V
4.9V
4.9V
5.2V
4.8V
11.3V
21.5V
4.0V
0.7V
0V
4.5V
5.0V