Kenwood RXD-402 Service Manual page 25

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