Kenwood RXD-V313 Service Manual page 13

A B
TUNER UNIT RXD-V313(M,I)
RF AMP
FM ANT
IC101
1 COIL
JK101
L101
C155 C101
100P 1 5 1000P
FM
1
75 OHM
2
3 4
GND 2
FM IFT
C119
GND 3
L102
0.1
AM 1 6
4
6
(MW/SW)
D106
(2/2)
2 5
5
3 4
4
FM RF
2
COIL
D106
(1/2)
R110
33K
TP2
1
R145
1K
FRE- VT
3 BAND
QUENCY VOLTAGE
LF 1.0V
FM
HF 7.0V
LF 1.2V
AM
HF 7.3V
L104
1 6
2 5
R114 C116 L105
3 4 100K 470P 1
2
AM ANT 3
COIL
MW OSC
4
D108
COIL
CAUTION: For continued safety, replace safety
critical components only with manufacturer's rec-
ommended parts (refer to parts list). indicates
5 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 insu-
lated 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 as the AM/FM sig-
6
nal generator is specified to the conditions as
shown in the list below. The measurement value
may vary depending on the measuring instruments
used or on the product. The value shown in ( ) is
actual reading measured in the AM made.
MODULATION
MODE CARRIER
FREQUENCY DEVIATION
FM 98MHz 1kHz STEREO 67.5kHz 7.5kHz(Pilot)
AM 1000(999)kHz 400Hz MONO 30% MOD
7
C D
3.8V
R118
CF102
4.1V R105 100
1K
0.7V
R104
100 CF101
IF
T101
Q101
AMP
1
0.1V
2
3
5.0V
5.0V (5.6V)
(0V)
R112 R213
Q105
R102 100 10K
+B +B +5V
1K 1/4W
C110 R109
1.3V
2.2P 100K
2.4V
(5.5V)
L103
C112
100P
FM OSC
2 Q102
COIL
0.7V
11.5V
R132 R131 R130
10K 1K 150
1/2W
C143 +
R133 1u50
+
2.2K
C144
0.01
Q107,108
1.0V
Q107
L.P.F R214
6.8K
Q108
0.6V
6
5
4
+B +B
IC101 : LA1186N
IC102 : LA1831
IC201 : LC7218
Q101 : 2SC1675(L)
Q102 : 2SC1674(L)
Q105 : DTA114YS
Q106 : 2SK544F-T
Q107,108 : 2SC945
Q109-111 : DTC114YS
D101,102,105,111,112,202
: 1SS133
D106 : KV1340A-2
D108 : KV1561A-2
D110 : MTZ5.6B
SIGNAL LINE
GND LINE
+B +B LINE
ANT INPUT
60dB
60dB
E F
+12V +12V
C121
AM IFT
T102 15P
3 6
2 5
1 4
+B +B
+
MONO: 4.7V
TUNED: 0V
REG GND
TUNING
DRIVE
FM
FM
DET
IF
AM/
COMP
FM
IF
S-CURVE
LEVEL BUFF
DET
AM AM
IF DET
AGC
BUFF
AM AM AM
ALC
OSC
MIX RF AGC
4.3V
2.1V
(5.0V)
R122
+ 3.3K
2.9V
(3.7V)
Q106
+
AM RF
AMP
C128
0.022
1.0V
R138
4.7K
5.0V
R140
3.6K
+5V +5V
+
2.1V
PLL
IC201
REFERENCE PHASE DETECTOR
DIVIDER CHARGE PUMP
1 SWALLOW COUNTER
1/16, 1/17 4bit
2
12bit
PROGRAMMABLE
DIVIDER
SHIFT REGISTER LATCH
C215
22u16
+
2.0V
MUTE
ON: 0V
OFF: 2.3V
MUTE
CONTROL
G H
+12V
+B
+
11.5V
CF103
AM/FM
+ C123
1u50
/MPX
SYSTEM
+
IC
ST: 0V
IC102
+
VCC
FM
AM
PHASE DET
AM/
FM
SW
PILOT
VCO
DET
FF FF FF
TRIG
STEREO
DRIVE
STEREO
SW
MUTE
DECODER
0V
C151
1500P
L107
C161 R127
47mH 1u50 3.3K
+
+
C152
1500P
R121
TP1
3.3K C162 R126
2 IF L108 1u50 3.3K
+
1 GND 47mH
ST: 3.2V
MONO: 0V
UNIVERSAL
COUNTER
Q111
MUTE
ON: 4.5V
OFF: 0V
Q110
Q109
Y39-2910-20
I J
CN101
10 MUTE
AUDIO
9 Lch -CN101
8 GND
4/5
7 Rch
6 ST IND
A
+12V 5 +12V
2 4 CE
3 3 DI
4 2 CLK
5 1 DO
RXD-V313(M,I) (1/5)
RXD-V313