Kenwood RXD-501 Service Manual page 27

AY AZ
Q Q
3 7 6 3 1 5 1 5 0
+12V
12.2V
2.9V
L34
2.9V
Q31 C50
1000P
2.3V
R41
2.2K 4.3V
R42
R50
47K
10K
C51 X C77
X
X
C53 10u10 R43 3300P
X
C54 +
X
C78
C52
3300P
10u10
X
C56
+
3.6V 3.6V
X
C55 W60
3.6V
+
3.6V
DECODER
UNTIBIRDIE
STEREO
SW
IC1
STEREO
DRIVE TRIG MUTE
AM/FM
SYSTEM
IC
FF FF FF
PILOT
VCO
DET
T E
L 1 3 9 4 2 2 9 6 5 1 3
PHASE DET
VCC
0.2V 1.7V
6.7V
4.3V 7.1V
8.1V
FM/AM
SW
Q102
6.7V
MUTE
Q32
0V
+
+ + +
C95
47P
X
C59
100P
+B
w w w
X
.
BA BB
RXD-501/551/701/751 (X05-490X-XX)
DESTINATION
UNIT No. A
COUNTRY ABB.
U.K. T 0-51 YES
EUROPE E 2-70 NO
RXD-501E/551E/701E/751E (X05-4902-70)
DESTINATION
UNIT No. A
COUNTRY ABB.
+12V
EUROPE E2 2-70 NO
11.9V
RXD-501W/551W/701W/751W (X05-4903-81)
DESTINATION
5
8 UNIT No. A
+ 7
COUNTRY ABB.
6
PUSSIA Q 3-81 YES
-
4 7.0V
IC3
R54
(1/2) POLAR UNIT
68K
(X04-1313-80) (Q)TYPE ONLY
BUFFER
CN2
DET SEPARATTION
IC3
OUT
1
(2/2) VCO
R51 R53
3 MONITOR 2
D33
+ 1 1K 1K
2
-
4.3V
W78
CN3
1
FILTER
2
R47 R48
3.9K 3.9K
CN1
P1
15 DET-OUT
Lch Rch
14 S-LEVEL
13 SD
12 STEREO
11 Rch
10 GND
9 Lch
11.9V
MUTE R104 +12V 8 +12.4V
47K
7 -12.4V
6 T.MUTE
Q101
( )
5 5 PLL-DATA
Q103
R101
1K
( 4 ) 4 PLL-CLK
( 3 ) 3 PLL-CE
MUTE
( )
2 2 PLL-DO
DRIVER
1 MONO
D101 R102
1K
R31
+B +12V
82 1W
+12V
x a o
X y
W68 W74
i
BC BD
C39,59, C53, C55, C77, R43,
B C48 C67 C68 R3 R16 R57 R60 L62 L63
8
79,88 54 56 78 44
NO 33P NO YES L39-1368 NO
NO 560P 0.015 2.2u35 YES 3.3K 22 22K NO
YES 22P YES NO L39-1367 YES
C39,59, C53, C55, C68,77, R43, R57, W68,74,
B
C48 C67 R3 R16 L62 L63
79,88 54 56 78 44 60 79
YES NO 560P 0.015 2.2u35 22P YES 3.3K 22 22K NO L39-1367 YES NO
C39,59, C53, C55, C68,77, R43, W68,74,
B
C48 C67 R3 R16 R57 R60 L62 L63
79,88 54 56 78 44
NO YES 470P 0.018 3.3u25 22P NO 330 47 12K YES NO L39-1368 NO
VCO
R5
33K
1.3V
+ +
C11
0.47u50
1.5V 1.5V 1.5V 1.5V
2.0V
2.6V
+
1.5V
IC1
POLAR
DEMODULATER
2.7V
POLAR
MPX
3.2V 3.5V 2.7V
0.6V
0.4V 0V
PILOT
3.5V 2.7V
ON/OFF
3.2V
R2 0.3V
5.2V
Q5
82K
D6
L1
TC1
Q Q
3 7 6 3
120P
TC1
C2
D2
RESO-
0.01 0V
NANCE
5.1V R11
POINT Q1
C4 4.7K
47u10
5.1V
R9
D1 +
220 1W
+B
L4
C25 R35
120P 1mH 22K
Q1
MONO
ON/OFF
11.9V
+12V +12V
C23
4700P
R19
10K
C14
1u50 R13 2 C17
8
- 2.2u50
1
+
12K
3
+
+ 5.2V
IC2
0V
(1/2)
Lch
0V
AMP
0V
Rch
0V
IC2
(2/2)
5
C15 + 7
+
1u50 R14
6
- C18
0V
+ 0V
4
12K 2.2u50
R20
10K
-12.2V
-12.0V
C24
u 1 6 3
4700P
12V
.
BE BF
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
W51,52, W68,74,
W61 J2 2 A1 4
9 9
54,55 79
list below. The measurement value may vary depending on the measuring instru-
NO
YES NO F10-1053 W02-2640
ments used or on the product. The value shown in ( ) is actual reading mea-
YES
sured in the AM made.
W51,52,54,
J2 A1
55,61
YES F10-1053 W02-2640
MODE CARRIER
FREQUENCY
W51,52,54,
FM 98MHz
J2 A1
79 55,61
YES NO F10-1088 W02-2641
AM 1000(999)kHz
POLAR:5.1V
PILOT:0V
12V
5.1V
+12V +12V
1 5 1 5 0 8 9 2 4
D7
11.9V
R31 47K
+12V
L2
R38
+
1K C26
2.2u50
4.9V
R22
1.2K
MPX
IC3
FILTER
POLAR/
PILOT
SEL. L3
R23
1.2K
C21 0.01
-5.2V
C22
m
47u10
+ -12.5V
c o
D4
12V 12V
X09-A/7
-CN11
RXD-501/551/571/A5/701/751/771/A8
6/8
F
Y39-2850-10
BG BH
2
8 9 9
MODULATION
ANT INPUT
DEVIATION
1kHz STEREO 67.5kHz 7.5kHz(Pilot) 60dB
400Hz MONO 30% MOD 60dB
(X04- )
IC1 : IR3R42
IC2 : NJM4565D
IC3 : TC4052BP
Q1 : 2SA933AS(Q,R) or
2SA1175(F,E)
Q5 : DTC124ESA or
UN4212
D1,4 : MTZJ5.1(B) or
UZ-5.1BSB or
HZS5.1N(B2)
D2,3,6,7 : 1SS133 or
HSS104
CN1
POLAR/PILOT
1
(POLAR H/PILOT L)
2 MONO X09-A/7
-E15
3 -12V
4 +12V
6/8
5 L(IN)
9 8 2 9 9
6 GND
J
7 R(IN)
8 ST
9 FM DET
10 R(OUT)
11 GND
12 L(OUT)
CN6
TUNER OUT
1 R
TEST
2 GND
PIN
3 L
CAUTION: For continued safety, replace safety
critical components only with manufacturer's rec-
ommended parts (refer to parts list). indicates
safety critical components. For continued protec-
tion against risk of fire, replace only with same
type and rating fuse(s). To reduce the risk of elec-
tric shock, leakage-current or resistance mea-
surements shall be carried out (exposed parts are
acceptably insulated from the supply circuit)
before the appliance is returned to the customer.
RED-501/551/701/751(T,E) (4/8)
RXD-501E/551E/701E/751E(E2) (4/8)
RXD-501W/551W/701W/751W(Q) (4/8)