Schematic Diagram - Kenwood RXD-803 Service Manual

AE AF
CN1
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13
C96
4700P
C95
4700P
35V 35V
+5V +5V
+20V +20V
Q12
-34.0V
TAPE
5.0V
MUTING
+5V +5V
12
Q12
R263 R265
Q13
4.3V 470 5.6K
IC15
Q13 46
EX-
ATT
PANDER
IC
13
(BOTTOM
MUTE
VIEW)
Q9 R254 R255
D14
470 5.6K
4.9V
R78
10K
B
MUTE ON : 0V 27
9.6V
OFF : 4.5V
+9V
L
IC11
E. VOL.
(FLch/
2.8V 2.8V
FRch)
LOUDNESS
SW
B
A
VOLUME
B
SELECTOR
A2 A
SURROUND
VOLUME A
SELECTOR
B
A1
A
B
LOUDNESS
SW
2.8V
AG AH
(X13-773X-XX) (A/3)
12 11 10 9 8 7 6 5 4 3 2 1
5.0V
35V
+5V
+20V
D24
D23
C210
A : 0V A : 4.9V
100P
B : 4.9V 0V B : 0V
B CrO2 A CrO2
: 4.9V : 4.9V
C59
0.01
5.0V
+5V +5V
BASS CONT. ON/OFF
Q1
1.2V
R13
220
C123
100P
0V
VOLUME
SELECTOR
BASS2 MID2 TREBLE B
2
A
MICRO COMPUTER INTERFACE
A
B
TREBLE
VOLUME
BASS1 MID1 1
SELECTOR
0V
2.8V 5.7V
C124
+B
100P
Q2 1.2V
BASS CONT. ON/OFF
+B
AI AJ
EXPANDER
R38
IC
1K
IC16
R37
(BOTTOM VIEW)
1K
B CrO2 : 0V
B Nor : 4.7V
A : 0V REC : A/B PLAY
B : 4.8V 4.9V : 0.7V
+5V
+9V
R99
D15
820
1/4W
C83
0.068
C78
100u10
+
C79
C81
5600P
1500P
R95
100K
C91
100P
R97
100K
C92
100P
R98
100K
9.6V
C82
IC20
1500P
BUFFER
R96
100K
C80
5600P
C94
2.2u50
C84
+
0.068
AK AL
35V
+5V
+B
4.5V
+5V
50
50 LED V
49
49 LED 3S
48
48 LED P
47
47 FLRST
46
46 ATT
45
45 EX DT
44
44 EX CLK 16
C211 100P
R207
47K R217
43
43 PS IN
100
42
42 PS LOAD
41
41 EX CLK 15
40
40 SOL A
39
39 CPM
38
38 SOL B
37
37 D SCK
36
36 D REDY
35
35 D DATA
34
34 FL CE
33
33 FL-CLK
R216
32
32 HP DET
220
R212
47K
31
31 FL-DATA
R266
5.0V 1.5K
R267
1
+B
4.5V
4.9V
D12
4.5V
D13
+B +B
RESET
IC2
R114 C113
Q7 1K 1u50
OUT IN +B
+
4.9V
GND
4.9V
RESET IC
4.8V
AM AN
5.0V
+5V
IC4
u-COM
(BOTTOM VIEW)
X1 R208
10MHz 4.7M
X2
+B
R111 W102 W46 W62
10K
+B
21.5V
11.3V
IC1
OUT IN +B
GND +5.1V AVR
IC5
D1
+B OUT IN +B
5.2V GND D2
D3
D4
D5
4.0V
Q5 R101
D8 D7 D6
1K
0V
R104 0.7V
Q6
2.2K
RELAY ON/OFF