Parts List - Kenwood KRF-V9992D Service Manual

A B
TUNER UNIT
(X11-380X-XX) (C/7)
1
2
A601 (W02-2622-05)
J601
1 1 ANT1
FM 75
2
ANT2
2
3
3 3 GND
GND
AM
4
4 GND
FET : 2SK302
TR1 : 2SC2714
TR2,3 : 2SC2413
D1-3 : HVU202 or
1T362
E601
4
IC27
IC28,43
IC44
IC601
IC602
Q601,603,604,606,607
Q602,612,614
Q610,611
D5,6
D601
D603
5
D604
D605
D608,610,611,613
D609
D612
D615
CAUTION: For continued safety, replace safety critical components only with man-
ufacturer's recommended parts (refer to parts list).
ponents. 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 resis-
tance measurements shall be carried out (exposed parts are acceptably insulated
6
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 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 measured
in the AM mode.
MODULATION
MODE CARRIER
FREQUENCY
FM 98MHz 1kHz STEREO 67.5kHz 7.5kHz(Pilot)
7
AM 1000(999)kHz 400Hz MONO 30% MOD
C D
R689
D601
680
R641
100K
AM RF
L601
L602
1uH
FM FRONT-END
MIX DISTORTION (ST)
VT 5
IFT
TR1
RF AMP R2 C4 IF-OUT 7
0-100 3P
C2
FET
10P
R14
68
+B 6
VCC
OSC
R11 C17
OUT 8
TR2
OSC 100K- 100P
C13 680K
TR3
8P
C14
OSC
27P
BUFFER
SIGNAL LINE
: TC9413P
GND LINE
: NJM4565D
B LINE
: TC9184AP +B
: B B LINE
: LC72131
: 2SC4081(R,S) or
2SC4116(Y,GR)
: 2SA1576A(R,S) or
2SA1586(Y,GR)
: 2SD1757K
: DA204U or
1SS302
: DA204K
: RD8.2ES(B2) or
HZS8.2N(B2)
: RD5.1ES(B2) or
HZS5.1N(B2)
: RD2.7ES(B2) or
HZS2.7N(B2)
: MA111
: RD3.3ES(B2) or
HZS3.3N(B2)
: 1SS133 or
HSS104
: U1BC44
indicates safety critical com-
ANT INPUT
DEVIATION
60dB
60dB
E F
CN12
2 1
FM
TUNED
+
ADJ
R642
10K
REG
AM AM AM
ALC
OSC MIX RF.AMP
BUFF
AM IF
SD
COMP
S-METER
FM AM/FM
S-CURVE
S-METER IF-BUFF
FM
FM IF
DET
GND
L603
+
C676
47P
+B
C672
1u50 R643
220
FM AMP
+B
C605
0.01 R611
6.3V 6.9V
33
Q602
1.7V
1.6V
R601 C601
100 0.022
C684
Q601
0.022 R687
1.1V
A 1M
CF601
X
CF602
R644
+
270
+B +B
1/4W
R688 +B
56K
R651
5.6K +
+
+
2.5V
1.0V PLL
(2.5V)
(1.0V)
IC602
PHASE
1/2
REFERENCE DETECTOR
CHARGE
DIVIDER
PUMP
SWALLOW COUNTER 12bits PROGRAMABLE
1/16,1/17 4bits DIVIDER
POWER
UNLOCK
ON
DETECTOR
RESET
2
C B I/F DATA SHIFT REGISTER LATCH UNIVERSAL COUNTER
10.1V (10.3V)
0V (11.6V)
X601
7.2MHz
C644
470P
G H
C627
C625
10u25
C624 R625 C626
+
390P 0.022
+ +
FM, MPX
C637 R633
AM SYSTEM 10u10 1K
+
+
IC601
4.3V
C638
2.9V (4.3V)
10u10
(2.9V)
+
DECODER
ANTI-BIRDIE
P-DET
STEREO
SW
AGC
MUTE
DET
FF FF
VCO FF PILOT
304KHz 38K 19K 2 19K 8 DET
AM
TUNING
STEREO
DRIVE DRIVE
4.3V
(0V)
VCC
6.9V
(3.6V)
8.0V
(8.0V)
+
C681
+
1 C617 +
1u50
+
L604 (GRN) L605 (WHT)
+
D613
FM DET MPX R620 3.3K
R619
R681
150 8.2K
+B
1W
W682
L606
MPX FILTER
W683
L607
8200P
11.3V
FM +B
Q614
+B
11.5V
R659
10.7V 1.2K
C688
C686
100P
470P
USED (M1) TYPE
FM:100kHz
CH SPACE DE-EMPHASIS
75uS
AM:10kHz
R648 1K
6
R647 1K
5
R646 1K
FM:50kHz
4
50uS
R645 1K
AM:9kHz
3
I J
Q603
C633 R631
47K
0.012
0V
[0V]
0.2V
0V
[0.6V]
R630
C634 560
0.012
Q604
0V
[0V]
EMPHASIS
75uS: ON
50uS: OFF
B
50uS
[75uS]
3.5V
15.0V
R635
Q607
100
8.0V
C
R638
Q606
2.9V
1K
3.7V
4.3V
R637
3.9K
R639
10K
+15V
CN11
15 DET
R640
14 S-LEVEL
1K
13 SD
12 STEREO
11 Rch
10 GND
0V
[0V]
MUTE
Q610
-2.4V
[0.7]
9 Lch
0V 0V
-2.4V
[0V] [0V]
[0.7]
C671
+17V 8 +17V
Q611
R674
47K
17V 7 -17V
6 T. MUTE
0V 4 5 PLLDATA
[0V]
5 4 PLLCLK
3 3 PLLCE
3.7V
[3.5V]
-2.4V
6 2 PLLDO
R676
[3.5V]
Q612
1.8K
1 DE-ENPH
5.0V
T. MUTE
[2.7V] R677
DRIVE 4.7K
WH601
+15V
S601
W662