BI
BJ
BL
BN
BP
BR
BK
BM
BO
BQ
2
1
3
5
7
4
6
IC2
A1 (W02-2582-05)
IC1
Q17
SW
D4
AMP
IF
Q1
D1
D2
+B
ON:MW
OSC
ON:SW
+B
ON:SW
Q11
Q10
Q9
D7
SW
: MTZJ5.1(B) or HZS5.1N(B2)
: MA111
: MTZJ8.2(B) or HZS8.2N(B2)
: KV1590ATS2
D3
D1,2
D7
D4
: 2SB1218A(Q,R) or 2SA1576A(R,S)
: 2SD1819A(Q,R) or 2SC4081(R,S)
: 2SK302(Y,GR)
Q2,10,11
Q3-5,7,8,17
Q9,12,16
: 2SC2714(R,O)
: LC72131
: LA1837
IC2
IC1
Q1
CN2
FM TUNE
530~1610kHz
MW 531~1602kHz or
5.9~17.9MHz
AM:ON
FM:OFF
SW
FM/AM
SW
RF AMP
SENS
MW
SW
Q16
50uF:OFF
75uF:ON
EMPHASIS
Q4
Q3
ON:SW
MW
Q8
Q7
ON:MW
D3
D2
D1
Q2
ON:
FM+B
FET
: 2SK302
BUFFER
OSC
OSC
RF AMP
MIX
TR3
TR2
D3
PLL
TR1
FET
FM FRONT-END
J1
FM 75
GND
: 2SC2714
TR1
D1-3
TR2,3
AM ANT
J2
: HVU202 or 1T362
: 2SC2413
FM 300
CN1
FM MPX AM
SYSTEM
DISCRI
Q5
ON:MW OSC
Q12
G
RXD-571S/771S(M) (5/8)
(X05-4710-21) : RXD-571S/771S
4P
0.01
0.047
C50
10K
R83
C67
22P
R32
R41
R30
68 1W
3.3K
R1
C2
0.01
330
R5
R6 100
+
C27 47u16
C26 0.01
0.01
C1
330
R4
R3 22
R2 680
R8 330
CF1
CF2
4.7K
R13
47K
R82
3.9K
0.047
C4
22
R28
C5 0.047
1000P
C57
+
C25
1u50
100
R7
1/4W
C37
1
220
R49
330
R50
12K
R46
R45
1.2K
1
2
3
4
6/8
X09-A/7
-CN11
39K
R21
39K
R22
9.1K
R14
1mH
L6
2
1
0.022
C35
C53 0.022
R35 3.3K
0.01
C65
R75
100
C62
0.022
1M
220K
3
2
1
4
6
L2
100
R68
R67
100
C52 0.022
R81 2.2K
C63 0.01
R80
100
R77
240K
R78 1M
R76 1M
4.7K
R40 10K
C29
C28
0.1
560
R23
R24 560
6800P
C23
C24
6800P
C58
C14
R15
C13
0.047
33u16
C16 820P
C59 100P
+
C15
C49 10u25
C51
0.033
R16
4.7K
R17
R18
R20 3.3K
1uH
L7
R54
1K
8
2
AM IF
0.022
C34
C64
22P
6
4
L3
R79
C54 0.01
R48
100K
1M
R38
R34 220K
0.01
C30
100K
R36
4700P
C33
R33 10K
1
2
3
R44
12K
R43
1.2K
1M
R42
100
R37
0.022
C55
C10 0.1
100
R7
0.1
R4
33K
3.9K
R6
R3 33K
R14
68
150P
C20
C12 0-8P
L6
0.1
C9
R9 10K
27P
C14
R10
680-
100P
C17
C7 27P
C6 4P
R11
100K-
R12 100
680
R13
470K-1.2M
R5
180P
C3 0-8P
C19
180P
C18
C1 0~8P
L2
R1 100K
VT
5
R58 1K
R57 1K
10K
R56
C45 100P
1/4W
+
100
1/4W
+
5.6K
2.2K
560
R52
C48
100u16
R51
R53
R64
1.2K
12K
R65
13
12
IF IN
NC
STEREO
C8
2.2K
680K
R69 100
SD
COMP
S-METER
AM
PILOT
DET
304KHz
VCO
FF
38K
REG
FF
19K
DRIVE
UNLOCK
COUNTER
UNIVERSAL
11
C47 100P
+
47u16
C39
0.047
C41
C40
21
20
VSS
AOUT
22
X OUT
DIVIDER
12bit
DIVIDER
1
2
REFERENCE
10
9
8
7
BO1
6
DI
4
5
DO
CL
2
4
5
3
R62 1K
R61 1K
R59 1K
R60 1K
R63 10K
2
3
X1
1
CE
X IN
NC
12P
C43
10P
470P
C44
C42
7.2MHz
CHARGE PUMP
PHASE DETECTOR
PROGRAMMABLE
1/16, 1/17 4bit
SWALLOW COUNTER
DATA SHIFT REGISTER LATCH
AIN
19
2.2u50
IFT
+B
6
7
IF-OUT
8
OSC OUT
C5 1000P
L5
3P
C4
L4
L3
0-100
R2
2-6P
C16
18P
C15
R8
10K
8P
C13
L1
C2
10P
ANT2
2
ANT1
GND
1
3
GND
4
R39 100K
L1
C20 0.018
C19 0.018
14
15
GND
Rch
SD
10
11
12
13
Lch
7
8
9
4
5
4
5
6
R19 3.3K
+
+
16
+
18K
C18
18K
C17
+
18
19
17
MUTE
C21 1u50
C22 1u50
19K
15
14
10u16
10u16
PLLCLK
PLLDATA
T.MUTE
-12V
+12V
STEREO
S-LEVEL
DET
CH.SPACE
1
2
2
8.2K
+ R11
4.7K
R12
C9
1u50
R10
3K
0.47u50
C8
+
1u50
C7
+
PLLDO
3
PLLCE
3
3.3u50
+
C12 0.047
R47 1M
25
AGC
DET
12
10
VCC
R9
11
DRIVE
TUNING
8
7
6
GND
9
27
AM
AM
29
28
AM
OSC
RF.AMP
MIX
30
BUFF
FM
ALC
IF-BUFF
AM/FM
FM
DET
S-CURVE
5
4
3
FM IF
S-METER
1
2
22u50
+
R27 3.9K
C6
14
16
15
C46 470P
AM IN
FM IN
PD
18
17
R55
VDD
DETECTOR
L5
+
220u10
C11
47P
3.3K
C10
20
21
DECODER
22
P-DET
ANTI-BIRDIE
23
24
26
L4
+
C61 47u16
C3 0.047
13
FF
SW
STEREO
C56 22P
0.022
C38
+B
+B
+B
+B
+B
+12V
+12V
+12V
+12V
+12V
+12V
+B
+12V
+12V
+12V
+5V
+12V
+12V
+12V
+12V
+12V
+12V
+12V
+12V
(3.6V)
3.6V
3.6V
3.5V
3.5V
3.3V
3.6V
3.6V
8.2V
3.6V
0V
0V
0V
12.3V
0V
2.6V
5.2V
12.3V
7.2V
0V
0V
2.6V
0V
7.1V
5.2V
0.9V
0.9V
4.2V
0V
2.6V
11.6V
11.9V
11.9V
0V
7.2V
7.2V
0.5V
(3.9)
7.2V
4.3V
(0V)
1.3V
8.3V
(5.1)
0V
0V
(3.5V)
(3.5V)
3.6V
3.3V
0V
0.4V
0V
0V
11.9V
5.7V
3.2V
2.3V
12.3V
0V
11.9V
12.3V
0.4V
11.9V
3.6V
3.3V
(8.3V)
(3.5V)
0.2V
0.6V
0.6V
0.2V
4.3V
4.3V
4.3V
4.3V
3.3V
(3.2V)
2.8V
(1.3V)
0.2V
(3.1V)
0V
(1.2V)
3.3V
(3.6)
1.8V
(3.6V)
3.6V
10.5V
2.0V
1.3V
(
)
)
(
)
(
)
(
)
)
(
(
)
(
(
)
Y39-2850-10
RXD-501/551/571/A5/701/751/771/A8
CAUTION: For continued safety, replace safety critical components only with manu-
facturer's recommended parts (refer to parts list). indicates safety critical compo-
nents. 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.
MODE
CARRIER
MODULATION
ANT INPUT
FREQUENCY
DEVIATION
FM
98MHz
1kHz
STEREO 67.5kHz 7.5kHz(Pilot)
60dB
AM
1000(999)kHz
400Hz
MONO 30% MOD
60dB
The DC voltage is an actual reading measured with a high impedance type volt-
meter as the AM/FM signal generator is specified to the conditions as shown in the
list below. The measurement value may vary depending on the measuring instru-
ments used or on the product.
The value shown in (
) is actual reading mea-
sured in the AM made.
RXD-501~751(K)
SD(
98.4.23
22:03
y [ W
15
