Kenwood KRF-V4550D Service Manual page 12

AY AZ
CAUTION: For continued safety,
DSP/DIR CD OUT
DSP/DIR/CODEC CD IN
replace safety critical components
DSP/DIR/CODEC CCLK
only with manufacturer's recom-
1
mended parts (refer to parts list).
DIR/CODEC CS
indicates safety critical components.
For continued protection against risk
X08-A/3
of fire, replace only with same type
-CN2
and rating fuse(s). To reduce the risk
3/4
of electric shock, leakage-current or
resistance measurements shall be
F
carried out (exposed parts are
acceptably insulated from the supply
circuit) before the appliance is
returned to the customer.
2
The DC voltage is an actual reading
measured with a high impedance
type voltmeter with no signal input.
The measurement value may vary
depending on the measuring instru-
ments used or on the product.
3
PRE OUT MUTE
X07-A/3
-CN7
2/4
E
4
S. LEVEL/CH. SPACE
5
6
to TRANS
7
2/4
B
BA BB
(X14-7122-73) (A/6)
CN2
1 40
2 39
C58
3 41
47P
4 44
DSP CS 5 42
DSP PD 6 43
DSP INTREQ 7 32
ABOOT 8
DIR/CODEC PD 9 45
91
DIR ERR 10 35
CP501
DZF 11 36 100Kx5
DDET 12 33
VOL. ST 13 31
SEL/VOL DT 14 4
SEL ST1 15 3
50
SEL/VOL CLK 16 5
49
SEL ST2 17 6
C37 48
PROTECT 18
47P 47
S. DATA 19 1
S. BUSY 20 2
D. GND 21
R164 220
45
R165 220
CN1
44
R166 220
GND(X08) 1
43
X08 +B 2 +B R167 220
42
PLOT. 3 20
R168 220
41
PLOT. 2 4 21
R114 R169 220
TH SENS. 5 19
PACK CONT. 6 75 100K
40
LIMITER 7 76
R170 220
REAR RE. 8 77
39
CENTER RE. 9 78 R142 100K
F. B RE. 10 79
38
F. A RE. 11 80
12 88 37
R141 100K
20dB ATT 13 89
A. MUTE 14 90
36
F. OFF2 15
35
33
H. P L 16
H. P R 17
CP3
100Kx4
C47
SEL ST1 18 3
100P
32
SEL ST2 19 6
SEL./PLL CLK 20 5 31
C43
SEL./PLL DATA 21 4
C9
100P
PLL DO 22 23
47P
23 22
PLL CE 24 7
T. MUTE 25
DET OUT 26
C55
CP2
100Kx4
47P
STEREO 27 98
SD 28 99
POWER RE. 29
F. OFF 30
Q14
-29.7V
D33
-30V 31 30V
5.4V 32 +5.4V
5.4V
D.GND 33
REMOTE
SENSOR
A1
47u6.3
+B
30V
5.4V
+5.4V
BC BD
30V
CP502
100Kx3
50
4G
49
3G
48
2G
47
1G
R131 46
NO USE
100K
45
DIR/CODEC PD
44
DIR/CODEC CS
43
DSP PD
42
DSP CS
41
DSP/DIR/CODEC CCLK
40
DSP/DIR/CDOUT
39
DSP/DIR CODEC CD IN
38
RDS.DAT/CE2
37
RDS. CLK
R88 100
36
DZF
R87 100
35
DIR ERR
34
REMOCON
R85 33
DTS DET
100
R84 32
DSP INTREQ
100
31
VOL. ST
R79
10K
30
RF CLK
29
RF DT
28
RF ST
27
T. MUTE
26
RESET
CP1
100Kx5
R65
10K
C17
0.01
C23
R66
10K
+
C18
0.01
+B
5.0V
BE BF
30V
LIMITER
REAR RE.
CENTER RE.
FB. RE
FA RE.
POWER RE.
CS5.1(DOWN MIX)LED
3 STEREO LED
DTS LED
DOLBY DIGITAL LED
PROLOGIC LED
STANDBY LED
PRE OUT MUTE
20dB ATT
A. MUTE
ABOOT
IC1
(BOTTOM VIEW)
MULTI. ENC CW
u-COM
MULTI. ENC CCW
SEL. ENC CW
SEL. ENC CCW
VOL. ENC CW
VOL. ENC CCW
STEREO
SD
VPP
(-30V)
X1
8MHz
4.7V
+B
+B
+B
30V
+5.4V
BG BH
30V
75
76
R98 100K
76
77
C36 47P
77
78
78 C57 220P
79
79
80
80
81
81
R69 10K
82
82
83
83
R70 10K
84
84
85
85
86
86
87
87
88
R53
88
2.7K
89
89
R52
90 2.7K
90
R50
R56
100 2.7K
91
91
S17
R45
92 100 R42
10K
S18
R44
93 100 R43
10K S2
R129 100K
C11 0.01
R46
94
100
R128 100K
INPUT
SELECTOR
C12 0.01
R47 R41
95
100 10K
R36 100K
C16 0.01
96 R48
96
100
R37 100K
C15 0.01
R49
100
97
97
R143 100
98
Q13
R64 100
99 Q12
-29.2V
100
30V
99
C61
100P
C54 C32
4.7u50 22u6.3
+ +
C38
33u50
+
+B
+B
+B
30V
+5.4V