Kenwood RXD-402 Service Manual page 25

Mini hifi component system
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AY
AZ
(X13-761X-XX)
+
+B
+B
8.7V
C511
0.1
D
D
POWVCC
R
R
F
INTER-
FACE
REGULATOR
F
T.S.D
R
R
F
MONITOR
INTER-
FACE
VREF
F
POWVCC
F
INTER-
FACE
MUTE
R
R
F
PREVCC
D
POWVCC
+B
8.3V
Q505
R553
2.2 1/4W
+B
CD
POWER
SUPPLY
R523
R522
R520
D502
4.7K
10K
180K
43
+B
+B
5.0V
44
+5V
+9V
+B
R537 560
+B
C518
100u10
+
2.0V
4.9V
IC7
DSP/DAC
(BOTTOM VIEW)
DIGITAL
DIGITAL
CLV
OUT
D/A
INTERFACE
ERROR
CORRECTOR
SERIAL-IN
TIMING
INTERFACE
LOGIC
16K
RAM
OVER SAMPLING
DIGITAL FILTER
SIGNAL
DAC BLOCK
4.7V
BA
BB
J2
FM75
GND
AM ANT
E4
A
Q12
J1
R5
1K
Lch
1
MD REC OUT
R6
1K
Rch
2
A501
DIGITAL
R1
3
1K
OUT
GND
3
Lch
(OPTICAL)
2
MD/DVD IN
+5V
1
R2
DOUT
1K
Rch
4
8.7V
Q503
R552
Q502
+B
330 1/4W
-12.3V
CONTROLER
7.9V
(Q503)
POWER
SUPPLY
ON/OFF
CD: 4.4V
(CD)
8.9V
+5V
+9V
+9V
+B
+B
R539
1
+B
5.0V
X501
+
D
16.9344MHz
LRCK
61
62
PCMD
X501
E
16.9344MHz
4.8V
BCK
63
EMPH
64
65
5.0V
XVDD
XTA1
66
2.4V
R534
470
XTA0
67
2.4V
68
XVSS
69
5.0V
AVDD1
+B
R561
C531
AOUT1 70
2.1V
9.1K
820P
AIN1
71
2.1V
72
LOUT1
2.1V
R569
73
22
D504
AVSS1
74
+B
AVSS2
5.0V
R570
LOUT2
75
2.1V
22
AIN2
76
2.1V
R562
C532
Q8
AOUT2
77
2.1V
9.1K
820P
78
5.0V
AVDD2
+B
+
R190
1K
RMUT
79
80
LMUT
20,28,29,40,45-49
BC
BD
E2
12 11 10 9
8
E5
12V
Q11 MUTING
4
3
2
1
13 12
11
10
A1
C
TUNER PACK (AM/FM)
+5V
+9V
R189
C5
C15
1K
1u50
0.1
C45
+
+
100P
+
+
80
NC
79
NC
78
+B
NC
77
EMP/POLA
76
T-DCOFF
75
CDPROT
74
(PORT)
73
+B
VDD
SURROUND
TONE
72
REF
71
B
-AVDD
+
70
NC
69
+B
NC
68
7.3V
NC
67
NC
66
NC
65
NC
C6 1u50
+
R23
C16
C18
1K
0.1
0.33u50
+
+
+B
+B
+B
+B
BE
BF
WH2
7
6
5
4
3
2
1
W2
-12.3V
12V
12V
12.3V
W1
W6
+12V
+12V
W4
Q2
Q2
POWER SUPPLY
ON/OFF SWITCH
12.3V
(TUNER)
11.6V
R221
R222
Q3
4.7K
4.7K
9
8
7
6
5
4
3
2
1
CONTROLER
(Q2)
B
OUTPUT VOITAGE
FM 600mV
TUNER: 4.8V
AM 180mV
OTHERS: 0V
R158
47K
C73
4.7u35
D
MUTING
+
(TUNER)
R159
Q7
5.6K
+5V
+9V
R17
1K
IC2
(BOTTOM VIEW)
+
+
SOUND CONTROLER
(TONE/3D SURROUND
/E.VOL)
MAINOUT
25
26
TONE OUT
27
VOL.IN
28
VOL.OUT
29
C35 3.3u50
30
7.3V
AVDD
+B
+B
+
+
31
4.8V
DVDD
+B
+B
32
R24 1K
CLK
50
33
R25 1K
DATA
52
R26 1K
34
LATCH
51
35
D.GND
C36
VOL.OUT
36
3.3u50
VOL.IN
37
TONE OUT
38
R20
C34
39
22
3.3u50
+
MAINOUT
40
+
+
+
R18
1K
R142
D12
1K
+B
+B
+B
+B
BG
BH
+12V
C83
C
0.01
IC3
+
(BOTTOM VIEW)
RDS
DEMODULATOR
-12.3V
1.3V
2.5V
X3
4.332MHz
+
+5V
+9V
+B
4.7V
52
51
0V
50
50
EVCLK
0V
49
49
DATA
0V
48
48
XLAT
0V
47
47
CLOK
R119
0V
46
46
SENS
220
0V
45
45
SCLK
0V
44
44
LDC
0V
43
43
MON
0V
42
42
DCOFF
41
41
FLRST
0V
40
40
XRST
R53 4.7K
5.0V
39
39
PSSW
38
38
PHTR
R52 4.7K
0V
37
37
TUSW
R45 4.7K
36
36
TDSW
0V
35
35
RTR
4.6V
34
34
FLCS
4.7V
33
33
FLCLK
4.8V
32
CE
4.7V
31
31
FLDATA
0.7V
C58
470P
R47
47K
+5V
+B
+5V
5.0V

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