Kenwood R-SE7, Service Manual

Page: 15 / 27

U W Y AA AC V X Z AB AD
Y05-3480-11
R-SE7/SE-7 ( G )
2.1V
10.6V
1.4V
1.4V
10.6V
2.1V
12.1V
12.3V
12.3V
0V
2.5V
0V 0V 0V 5.1V
0V(9.7V)
12.3V
2.5V
3.2V 1.0V 1.0V
5.1V
2.5V(0V)
0V
0V
0V(2.5V)
12.1V(0V)
11.5V(12.0V)
12.3V
1.8V(1.5V)
3.7V
3.6V
3.6V
0V(1.1V)
2.8V(3.9V)
3.0V(3.4V)
4.1V(1.3V)
2.9V
3.6V 3.6V
3.6V
3.6V
8.2V 3.6V 3.6V 3.6V 0V 4.8V 8.3V 0.2V
2.8V(2.0V)
1.7V 7.3V
8.3V
0V(0.6V)
6.8V(0V)
7.0V
2.9V
2.9V
12.3V
4.3V
0V
OFF:-2.2V
0V
-12.7V
3.6V
MUTE OFF:4.8V
MUTE ON:0V
ON:0.6V
3.1V
2.6V
(
)
(
)
(
)
(
)
)
(
( )
) (
( )
A
DIVIDER
REFERENCE
1
2 4 3 6 5
7.2MHz
C B I / F
2
22 21
12bits PROGRAMABLE
7 8
10
9
11
SWALLOW COUNTER
1/16,1/17 4bits
POWER
RESET
DATA SHIFT REGISTER LATCH
CHARGE PUMP
PHASE DETECTOR
DETECTOR
UNLOCK
ON
19 20 18
R88
17 16
1K
1/2
UNIVERSAL COUNTER
DIVIDER
14 15 13 12
C93 0.01
1000P
C87 47u10
1K 1K
2.2K
1000P 100P
R91
C91
C84
R87 R86
C86
C85
0.022
47u16
C89
2.2u50
C90
+
R89
100
1uH
+
1/4W
5.6K
R94
560
+
R90
L81
R83
C92 470P
4
R82
1K 1K
3
R81
1K
5 6
R85 1K
1/4W
22P
C81
X81
27P
C82
620
R17
0.01
C9
4.7
R19
12K R18
100K
R21 1.2K
R20
R84 10K
12K R92
1.2K
R93
FM IF IN
OSC OUT
1
30
2
AM MIX OUT
29
AM OSC
3
FM IF BIAS
28
AFC
4
REG
27
AM RF IN
5
AM IF IN
26
AM AGC
6
GND
25
AM LOW OUT
7
SD
24
DET OUT
8
ST AM IF
23
MPX VCO
9
FM DET
22
MPX IN
10
VCC
21
MPX OUT R
11
FM/AM
20
MPX OUT L
12
AM SDADJ
19
AMP IN R
13
AM NARROW
18
AMP IN L
14
PHASE DET
17
AMP OUT R
15
PILOT DET
16
AMP OUT L
IF SEEK V-SM FM/AM SW
FM SDADJ
L62
L33
33K
C30 0.047
R32 5.6K
C38 10u10
+
C42 2.2u35
+
C40 1u50
+
R33 3K
C41 0.47u50
+
R34 8.2K
1
C37
2.2K
R59
C34 0.1
C33 10u16
+
C35 10u16
+
C36 0.047
C31 47u16
C32 0.01
+
L32
L31
82 1W
R31
47P
C95
47K
R49
L36
L35
1.2K
R46
2.2u35
C56
+
1.2K
R45
2.2u35
C55
+
6800P
C57
6800P
C58
C45
R37
C49 1u50
+
R38 33K
C46 100u10
+
C70 100P
R39 22K
6800P
10u10
+
R44
R43
10u10
+
C53 0.027
C54 0.027
3.3K
3.3K
C52
C51
X31 456K
C47
C48
100P
L34
R41
2.2K
3.3K R40
1000P
C50
C94 1000P
47K
R42
3.9K
R47
3.9K
R48
C44 0.047
0.47u50
C43
+
2.7K
R36 39K
100K
R56
10K
R50
47K R55
68K
R54
C60 0.1
100K
R52
1K
R51
1K
R53
+
C1 47u16 C2 1u50
+
R1
100 1/4W
R4 680
R3 3.3K
C3 0.01
R5 330
330 3.3K
R8 R7
22 R6
CF1
CF2
R9
100
220
R2
0.01
C4
0.01
C5
R12 1.2K
C7 0.01
330 R13
330 R14
3.3K R10
680 R11
22
R16
0.01
C6
C8 0.01
100 R15
Q1,2
4P
0.01
0.033
C64
100K
R67
2 1
L63 10uH
6P
C66 22P C67
C68 2P
1K
R102
1K
R101
R104 47K
R105 10K R103 820
7
8
5
6
4
1
3
2
+
–
+
–
DISCRI
15
14
13
12
11
10
9
8
7
6
1
2
3
4
5
NC
PLL-DO
PLL-CE
PLL-CLK
PLL-DATA
T.MUTE
-12V
+12V
Lch
GND
Rch
STEREO
SD
S-LEVEL
DET-OUT
6
3
4
5
-E1
X09-A/8
2/3
R69 10K
0.01
C69
C61
C63
R35
22P
1K
R80
IC2
IC3(1/2)
IC3(2/2)
R-SE7
IC1
PLL
D81
Q3
RF ATT
D1
Q81
FM
D32
D31
Q32
FM/AM
SW
DISCRIMINATOR
AM IFT
Q31
BUFFER B.P.F
D33
FM IF
AMP
Q1
Q2
Q103
Q101
Q102
D101
CONTROL
MUTE
MUTE
CN2
CN1
OSC
FM/AM/
MPX
SYSTEM
IC
BUFFER
VT
IC
DET-OUT
R-SE7/SE-7(G)(K) SD( 97.11.28 6:43 AM y [ W 6