Kenwood KRF-V7030D-S Service Manual page 21

BI BJ
(X08-301X-XX) (A/3)
Q Q
3 7 6 3 1 5 1 5 0
+3.3V +3.3V
+5V +5V
4
C59 0.01
3.3V
D6
C58
R54
9.1K
0.01
R66 R68
100K 220
DIGITAL
SIGNAL
IC
IC6
Q1
C54
22P
RESET
+2.5V
1
2
28
SCLKN2
3
27
SDATAN2
4
26
LRCLKN1
5
25
T E
L 1 3 9 4 2 2 9 6 5 1 3
SCLKN1
6
24 41
DGND3
7
40
8
39
23
VD3 +2.5V R21 9
22 27
SDATAN1 220
10
R520
21 2.5V
EXTMEM 11
10K
20
INTREQ
19
SCDOUT
C505 R518
18 1000P 4.7K
CS
R516
10K
+2.5V
+5V AVR
5.1V
+5V
R635
+5V
100
Q61 R633
+12V
12.0V
R631 C450
680 0.01
R632
680
Q62
R634
12V
-11.9V
R636
-5V AVR
100
-5.1V
5V
w w w
.
BK BL
+3.3V
+5V
DIGITAL
C57
AUDIO
0.1
RECEIVER
5.0V 3.3V
IC5
R59
100
5.0V
+5V
+5V
C23
1000P
33
SDOS
DZF2
32
I2C
RIN+
31
SMUTE
RIN-
30
BICK
LIN+
IC2 29
LRCK
LIN-
SDTI1 28
CODEC ROUT1
27
SDTI2 (ADC & DAC)
LOUT1
26
SDTI3
ROUT2
25
SDTO
LOUT2
24
DAUX ROUT3
23
DFS LOUT3
R20
4.9V 4.7
+5V
1/4W
3.3V
+3.3V
+2.5V +2.5V
+12V
12V
9 -5.1V
10
5.1V
2
4 x a o
y
7 6 5 4 3 2 1
E7 i
CN3
BM BN
8
+3.3V
+5V
R217
5.6K
IC12
CONFIG.2
CONFIGURATION
SELECTOR
+5V
5.0V
+12V
+5V
12V
12.0V -11.9V
C3
0.01
C4
100P
R1 R2
32
5.6K 5.6K
30
Q Q
Lch
3 2 3 7 6 5 6 3
28
4 8
27
IC1 IC1 IC11
26 1 7
(1/2) (2/2) (1/2)
25
R3 R4 R111
24
100 100 4.7K
23
IC11,21,31
L.P.F BUFFER
2.5V 2.5V
+2.5V
+5V +5V
+3.3V
3.3V
20
18
IC43
DATA
SWITCH
IC44
EXTERNAL u 1 6 3
ROM
R434 .
100
BO BP
IC14
2 4
9 9
R121 10K
Lch
LS
6
4
-11.9V
C121 22P
-11.9V
R123 10K 12V
IC14
R125
R127 2.4K 2
8
1 100
3 Cch
LPF 4
IC13 (1/2)
+12V
12V
C126
100P
12.0V IC13 (2/2)
4
5
R128
7
+12V 2.4K
6
8
12.0V
R218 5.6K
R124 10K
R122
10K C122 22P
R126
S.W ch
100
2
-11.9V
+12V
12V
12.0V 12.0V
5
C209
4700P
C210
100P
1 7 Rch LS 1 7 RS Cch 1
1 5 1 5 0 8 9 2
4 4 4
8 8
3 2 3 2 3 2
6 5 IC11 IC21 6 5 IC21 IC31
(2/2) (1/2) (2/2) (1/2)
R109 R110 R112 R211 R209 R210 R212 R311 R309
10K 10K 4.7K 5.6K 2.7K 2.7K 5.6K 4.7K 10K
C105 C106 C205 C206 C305
1800P 1800P 1800P 1800P 1800P
R103 R104 R203 R204
100K 100K 100K 100K
R303
100K
41
+2.5V
+5V
+3.3V
R426 220
+5V
5.0V
R427 220
IC41 IC42
m
c o
IC41
LEVEL
5.0V
SHIFTER
(5V-3.3V)
9
BQ BR
ANALOG 6ch
2
8 INPUT SELECTOR 9 9
20
+12V
12V
12.0V -11.9V
C309
0.01
C310
100P
7 SW
4 9 8 2 9 9
8
IC31
6 5
(2/2)
R310 R312
10K 4.7K
C306
6800P
R304
100K
+3.3V
1
10
+5V
IC42
LEVEL
SHIFTER
(3.3V-5V)