Kenwood KRF-V4550D, Service Manual

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AY AZ BB BD BF BH BA BC BE BG
2
1
3
5
7
4
6
51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75
76
77
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80
81
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89
90
91
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93
94
95
96
97
98
99
100
25 24 23 22
21
20 19 18 17 16 15 14 13 12
11
10
9 8 7 6 5 4 3 2
1
50
49
48
47
46
45
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43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
5G 6G 7G 8G 9G
10G 11
G
P1
P2 P3 P4 P5 P6 P7 P8 P9
P10
P1
1
P12 P13 P14 P15 P16 P17
P
ACK CONT
.
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
MULTI. ENC CW
MULTI. ENC CCW
SEL. ENC CW
SEL. ENC CCW
VOL. ENC CW
VOL. ENC CCW
STEREO
SD
(-30V)
CE VREF+ PLL. DO S. LEVEL/CH SP
ACE
PROTECT2 PROTECT TH. SENS. MODEL
TYPE
KEY2 KEY1 VREF- MMOD X OUT X IN VSS OSC IN OSC OUT VDD(+5V) PLL. CE SEL. ST2 SEL/VOL/PLL
CLK
SEL/VOL/PLL
DT
SEL. ST1 S. BUS S. DA
T
4G
3G
2G
1G
NO USE
DIR/CODEC PD
DIR/CODEC CS
DSP PD
DSP CS
DSP/DIR/CODEC CCLK
DSP/DIR/CDOUT
DSP/DIR CODEC CD IN
RDS.DAT/CE2
RDS. CLK
DZF
DIR ERR
REMOCON
DTS DET
DSP INTREQ
VOL. ST
RF CLK
RF DT
RF ST
T. MUTE
RESET
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
DSP/DIR CD OUT
DSP/DIR/CODEC CD IN
DSP/DIR/CODEC CCLK
DIR/CODEC CS
DSP CS
DSP PD
DSP INTREQ
ABOOT
DIR/CODEC PD
DIR ERR
DZF
DDET
VOL. ST
SEL/VOL DT
SEL ST1
SEL/VOL CLK
SEL ST2
PROTECT
S. DATA
S. BUSY
D. GND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
GND(X08)
X08 +B
PLOT.
PLOT. 2
TH SENS.
PACK CONT.
LIMITER
REAR RE.
CENTER RE.
F. B RE.
F. A RE.
PRE OUT MUTE
20dB ATT
A. MUTE
F. OFF2
H. P L
H. P R
SEL ST1
SEL ST2
SEL./PLL CLK
SEL./PLL DATA
PLL DO
S. LEVEL/CH. SPACE
PLL CE
T. MUTE
DET OUT
STEREO
SD
POWER RE.
F. OFF
-30V
5.4V
D.GND
R59 100K R60 100K R61 100K R62 100K
7
R63 100K
8MHz
X1
0.01
C17
10K
R65
0.01
C18
10K
R66
R1
19 100
R120 100 R121 100 R122 100 R123 100
R124
100
R126
C44
C21
100Kx5
CP1
100P
0.1
23 22 21 20 19
C10
0.01
560K R83
6 5 4 3
R15
R14 100K
330 R12
R13 100K
330
2 1
48
47
50
49
100Kx5
CP501
100K
R164 220
45
40
41
42
43
44
R165 220
R166 220
R167 220
R168 220
R169 220 R114
100K
39
R170 220
R142 100K
38
R141 100K
37
R88 100
36
R87 100
35
33
R85
100Kx4
CP3
31
100Kx4
CP2
100
100Kx3
CP502
51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74
R501 100K R502 100K
76
R98 100K
C36 47P
77
78
79
80
81
75
87
82
83
84
86
85
88
R53
2.7K
2.7K
R52
89
2.7K
R50
90
91
100
R56
100
100
R46
R47
R48
100
R42
10K
C57 220P
R43
10K
R45
R1
18
100K
0.01 C13
R44
C14 0.01
R127 100K
R57 22K
R71 47K
R58
47K
R72
C56 22P
22K
R143 100
R64 100
10K R40
C11 0.01
R129 100K
R128 100K
C12 0.01
10K
R41
C16 0.01
R36 100K
10K R38 10K R39
R37 100K
C15 0.01
100
100
100
R49
VPP
98
31
40
39
41
44
42
43
33
36
35
45
32
47P
C58
4
3
5
6
2
1
3 4 6 5
6
5
3
4
19
21
C37
47P
100P
C47
90
75
76
77
78
89
88
80
79
23
22
7
98
99
C55
47P
47P
C9
100P
C50
100P
C53
32
C43
100P
R84
100
R79
10K
C19
0.01
16 17
25 26
20
91
81
33u50
+
C38
C54
4.7u50
+
99
97
96
GND VCC OUT
C23
47u6.3
1 2
R35
47
+
3
30V
30V
30V
30V 30V 30V
30V
+5.4V
+5.4V
+5.4V +5.4V +5.4V
+B
+B
+B
+B
+B
+B +B
+B
+B +B
+B
+B +B
+B
C20
0.1
100
R125
100
C22
1
R162 100K R161 100K
R131
30V 30V 30V
30V
C45 47P C46 47P
+
C32
22u6.3
R69 10K
R70 10K
C61
100P
+B
(BOTTOM VIEW)
CN2
CN1
D17 D18 D19 D20
D16 D15
D30 D28
S17
S18
Q12
Q13
S2
D33
u-COM
D9
3/4
X08-A/3
-CN2
-CN7
2/4
X07-A/3
REMOTE
SENSOR
Q14
to TRANS
2/4
INPUT
SELECTOR
IC1
(X14-7122-73) (A/6)
F
E
A1
B
-29.2V
5.4V
4.7V
5.0V
5.4V
-29.7V
CAUTION: For continued safety,
replace safety critical components
only with manufacturer's recom-
mended parts (refer to parts list).
indicates safety critical components.
For continued protection against risk
of fire, replace only with same type
and rating fuse(s). To reduce the risk
of electric shock, leakage-current or
resistance measurements shall be
carried out (exposed parts are
acceptably insulated from the supply
circuit) before the appliance is
returned to the customer.
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.