Parts List - Kenwood VR-208 Service Manual

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TUNER UNIT
(X05-4XXX-XX)
1
D1
L1
2
L2
1uH
(J) TYPE
A1 (W02-2621-05)
RF AMP
1 ANT1 C2
15P
2 ANT2
3 GND
3
FET : 2SK302
TR1 : 2SC2714
4 GND
TR2,3 : 2SC2413
D1-3 : HVU202 or
1T363
D4 : HSU277 or
1SS356
(K,P,Y,M) TYPE
A1 (W02-2622-05)
4
J1 RF AMP R2
0-100
1 1 ANT1 C2
Ω
FM 75
FET
10P
2
2 ANT2
3 3 GND
GND
AM
4 GND
4
FET : 2SK302
TR1 : 2SC2714
TR2,3 : 2SC2413
D1-3 : HVU202 or
1T362
5
E1
KRF-V8010D (X05-4820-21)
DESTINATION R72,
UNIT No. CF1,2 R25 R53 C24 C25 C26
73
COUNTRY ABB.
PX Y
0-21 L72-0531 YES 2.2K 8.2K 330P 390P YES
GENERAL MARKET M
VR-208/VR209 (X05-4820-10)
DESTINATION R72,
UNIT No. CF1,2 R25 R53 C24 C25 C26
COUNTRY ABB. 73
U.S.A. K
0-10 L72-0596 YES 2.2K 15K 330P 390P YES
CANADA P
KRF-V7510D (X05-4820-21)
DESTINATION R72,
UNIT No. CF1,2 R25 R53 C24 C25 C26
COUNTRY ABB. 73
PX Y 0-21 L72-0531 YES 2.2K 8.2K 330P 390P YES
6
KRF-V5551D (X05-4820-01)
DESTINATION R72,
UNIT No. CF1,2 R25 R53 C24 C25 C26
73
COUNTRY ABB.
JAPAN J 0-01 L72-0531 NO 1K 8.2K 0.01 820P NO
KRF-V8010D (X05-4912-10)
DESTINATION R72,
UNIT No. CF1,2 R25 R53 C24 C25 C26
73
COUNTRY ABB.
SHANGHAI V 2-10 L72-0531 YES 2.2K 8.2K 330P 390P YES
CAUTION: For continued safety, replace safety critical components only
with manufacturer's recommended parts (refer to parts list).
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
7
carried out (exposed parts are acceptably insulated from the supply cir-
cuit) before the appliance is returned to the customer.
C D
C40 2P
L9
10uH
R42
R41 10K
100K
FM FRONT-END
MIX DISTORTION (ST)
VT 5
IFT
TR1
R2 C4 IF-OUT 7
0-100 5P
FET
R14
68
VCC 6
R11 C17 OSC 8
100K- 100P
OSC TR2
C13 680K
TR3
8P
C14
C76
OSC
47P
27P
BUFFER
FM FRONT-END
MIX DISTORTION (ST)
C1
VT 5 0.022
IFT R1
TR1 1.0V
C4 IF-OUT 7 100
3P
+
CF1
R14
+
68 +B 6
VCC +B
OSC
R11 C17
OUT 8
100K- 100P
OSC TR2
680K
C13
TR3
8P
C14
OSC
27P
BUFFER
+
2.5V
C30,
C49 C78 A1 B D , E W56
31
0.022 2.2u50 0.022 W02-2622 YES NO NO
C30,
C49 C78 A1 B , D , E W56
31
0.033 2.2u50 0.022 W02-2622 NO NO
C30, 2
C49 C78 A1 B D , E W56
31 C B I/F
0.022 2.2u50 0.022 W02-2622 YES NO NO
C30,
C49 C78 A1 B D , E W56
31
0.022 4.7u50 0.01 W02-2621 NO YES YES
X1
7.2MHz
C30,
C49 C78 A1 B D , E W56
31
0.022 2.2u50 0.022 W02-2621 YES NO YES
C44
SIGNAL LINE 470P
+B +B LINE
GND LINE
-B +B LINE
The DC voltage is an actual reading measured with
indicates a high impedance type voltmeter as the AM/FM sig-
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 (
actual reading measured in the AM made.
E F
FM
+
TUNED
+
X
R25
C24 18K C26
0.022
FM, MPX
AM SYSTEM
+
IC1
2.8V
(2.8V)
REG
DECODER
ANTI-BIRDIE
AM AM AM
ALC
OSC MIX RF.AMP
P-DET
STEREO
BUFF SW
AGC
AM IF DET
VCO FF
SD
304KHz 38K 19K
COMP
AM
S-METER
FM AM/FM
S-CURVE
S-METER IF-BUFF
TUNING STEREO
DRIVE DRIVE
FM
FM IF
DET
4.3V
(0V)
GND VCC
L3
+
+
C81
8.1V
1
+ (8.1V)
+B
IF AMP
+B
C5
0.01 R11
6.6V
33
+B
6.0V
Q2
1.6V R87
1M R84
Q1
C84
1K
0.022
1.2V
CF2
R44
270
+B
1/4W
+B
R51
5.6K
+
+
PLL
0.9V
IC2
1/2
REFERENCE PHASE DETECTOR
DIVIDER CHARGE PUMP
SWALLOW COUNTER 12bits PROGRAMABLE
1/16,1/17 4bits DIVIDER
UNLOCK POWER
ON
DETECTOR
RESET
DATA SHIFT REGISTER LATCH UNIVERSAL COUNTER
R48 1K
R47 1K
R46 1K
R45 1K
MODULATION
MODE CARRIER
FREQUENCY DEVIATION
FM 98MHz 1kHz STEREO 67.5kHz 7.5kHz(Pilot)
) is
AM 1000(999)kHz 400Hz MONO 30% MOD
Published in Heiloo, Holland.
G H
Q3
C33 R31
47K
0.01
0V
0V 50u:0V
+ + D
75u:0.6V
C37 R33
10u10 1K
R30
C34 560
+
0.01
4.4V
C38
(4.4V) Q4
10u10
+
0V
EMPHASIS
+
75uS: ON
50uS: OFF
B
50uS
[75uS]
R71
220
MUTE
FF FF PILOT
19K 8 DET
2
AM STEREO
DETECTOR
7.0V
(4.0V)
C17
+
1u50
+
W86
+
W82
R81
150
+15V
1W
E
10.7V
AM +B
Q15
10.6V
+B +B
10.0V
10.9V
FM +B
Q14
+B
11.0V
R59
10.3V 1.2K
C86
470P
6
5
4
3
ANT INPUT
KRF-V7510D/V8010D/VR-208/209
60dB
60dB
Y05-3600-10
I J 12/6/15
BUFFER
1.1V
Q8
+ +
8.0V 1.1V
1.7V
Q9
8.0V
1.7V
+B +B
+
C56
0.01
1/8 VCO
AGC
IF
AMP
PILOT
DETECTOR
SIGNAL
QUALITY
DETECTOR
IC3
AM STEREO
+ +
DECODER
+
CN1
15
14
13 SD
12 STEREO
11 Rch
0V
C83
Q10
MUTE 100P
10 GND
X09-A/3
-CN9
0V -2.2V
W83 3/4
9 Lch
0V
+15V 8 +15V
A
R74
47K
7 -15V
15V
Q11 -2.2V 6
T. MUTE
0V ( 4 ) 5 PLLDATA
( 5 ) 4 PLLCLK
3 3 PLLCE
( )
( 6 2 PLLDO
)
1 MONO
3.5V
3.4V R76
Q12 IC1 : LA1838
1.8K
IC2 : LC72131
IC3 : MC13028AM
T. MUTE
2.8V
DRIVE R77
Q1,3,4,8,9 : 2SC4081(R,S) or
1K
2SC4116(Y,GR)
Q2,12,14,15 : 2SA1576A(R,S) or
2SA1586(Y,GR)
+15V
Q10,11 : 2SD1757K
D1 : DA204U or
MA143A or
1SS302
D3,6 : RD8.2ES(B2) or
MTZJ8.2(B)
D4 : RD5.1ES(B2) or
MTZJ5.1(B)
D5 : RD2.7ES(B2) or
MTZJ2.7(B)
D7,8,13,16 : MA111
D9 : RD3.3ES(B2) or
MTZJ3.3(B)
A1 :
VR-208/209(K) (1/4)
KRF-V5551D(J) (1/4)
KRF-V7510D/V8010D(Y) (1/4)