A
B
D
F
H
J
C
E
G
I
2
1
3
5
7
4
6
J601
Q601
D601
TUNED
FM
PLL
D604
FM +B
Q614
FM, MPX
AM SYSTEM
Q602
FM AMP
D603
D605
D613
AM RF
CN12
Q606
Q607
FM DET MPX
D61
1
D6
FM 75
GND
AM
ADJ
: 2SK302
: 2SC2413
: SVC220 or
: 2SC2714
KV1440
D1-4
FET1
TR1
TR2,3
D1
FET1
D4
BUFFER
OSC
TR2
TR3
OSC
D3
D2
RF AMP
FM FRONT END
DISTORTION(ST)
TR1
MIX
IC602
IC601
TUNER UNIT
(X11-3822-71) (C/7)
A601 (W02-2584-05)
270
R644
R601 100
0.01
C603
10
R607
820
R604 680
CF601
CF602
1/4W
4P
C675
R641 100K
L601
10K
R642
0.01
C636
1uH
L602
S-METER
DRIVE
TUNING
FM
AM/FM
S-CURVE
1
2
FM IF
S-METER
FM
DET
IF-BUFF
3
4
GND
5
AM
OSC
BUFF
ALC
30
29
SD
COMP
AM
AM IF
RF.AMP
AM
MIX
REG
28
AM
AGC
27
26
VCC
8
6
7
DRIVE
STEREO
9
12
10
11
13
15
14
MUTE
DET
25
24
23
22
38K
304KHz
VCO
FF
2
19K
FF
DECODER
ANTI-BIRDIE
P-DET
21
SW
STEREO
20
19
PILOT
DET
FF
19K
8
18
17
16
47P
0.047
C620
33u10
C619
+
0.047
C622
3.3u35
C621
+
R625
0.022
C626
C624
10u16
C623
+
10u25
C627
C625
VR601
10K
2.2u35
C629
+
2.2u35
C628
+
0.022
10u10
C638
+
10u10
C637
+
0.047
C612
22
R616
10u16
C614
+
3.9K
C645
+
C615 1u50
R620
3K
R618
0.47u50
C616
+
R619
C617
1u50
+
8.2K
1
C681
L603
0.047
C61
1
47u16
C610
+
R683 1K
47P
C676
C641
47P
10uH
L609
C640 2P
21
C B I/F
DIVIDER
REFERENCE
3
2
1
4
5
2
22
14
SWALLOW COUNTER
1/16,1/17 4bits
ON
DETECTOR
RESET
DATA SHIFT REGISTER LATCH
6
7
8
10
9
11
POWER
CHARGE PUMP
PHASE DETECTOR
UNLOCK
20
19
18
17
16
UNIVERSAL COUNTER
12bits PROGRAMABLE
DIVIDER
1/2
15
13
12
7.2MHz
X601
27P
C642
22P
C643
1.2K
R659
R658
12K
R649 10K
R648 1K
R647 3.3K
R646 3.3K
R645 3.3K
470P
C644
47u16
C648
+
10u16
C646
+
1000P
4.7u50
+
C678
1K
1K
R654
R651
5.6K
100
R652
R650 470
C647
1/4W
1K
R656
100P
C652
1K
R657
470P
C651
100P
C650
10K
R655
R643
220
2
1
4
3
E601
C601
0.022
C618
C672 1u50
+
47u16
C673
+
R605 3.3K
220
0.01
C605
R611
C606
0.01
330
R609
680
R610
C607 47u16
+
150
R681
1W
3
5
4
6
1K
1K
22
R608
100
R623
R634
R628
R627
R633
R606
2
1
T
.METER
VREF
3.3K
R638
1K
10u16
C632
+
R680 100K
R635
100
100
R636
10K
R639
C682 0.01
33K
R615
R682 2.7K
L604 (GRN)
L605 (WHT)
R603
3.3K
R602
220
0.022
8
7
9
10
GND
LEVEL
SHIFT
CK
STB
D
ATA
470K
R345
820P
C309
1
3
2
470P
C686
1M
R687
C684
0.022
R686
1M
C602 0.01
R688 56K
R685 1M
0.022
C685
100P
C340
470K
R343
470K
R344
6.8K
6.8K
C631
180P
220P
18K
15K
R614
R694
10
10
R693
C649
R653
R637 3.9K
+B
IF-OUT
VT
VCC
OSC
5P
0-100
C4
C2
C1
4
GND
3
GND
27P
C3
ANT1
2
GND
1
L1
27P
15P
100K
100K
3-7P
C5
C14
0.1
R3
R1
L2
0-5P
C6
10P
C7 5-10P
L4
L3
150K-
R19
100
220
R16
R14
L7
C17
2-6P
47P
C16
R12
3.9K
C19
8P
C21
470-
R17
10K
R15
1.5K
10P
560K
C22
27P
C20
10K
R18
1-3P
100P
C23
R8
680K-1.5M
C10
1000P
C8 0-6P
R5
100
R7 33K
R6 33K
680
L5
R9
L6
C15
0.1
R11
0-100
C12 2P
C1
1
27P
0.1
C13
R2
33K
R4
C9
IFT
8
6
7
5
100
R612
R690
680
22P
C630 0.022
C690 1000P
R617
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+15V
+15V
+15V
+15V
+B
3.6V (3.6V)
8.0V (8.0V)
(3.6V)
3.6V
(3.6V)
3.6V
(0V)
0V
(4.9)
0V
(8.0V)
8.0V
(1.2V)
1.2V
(2.8V)
0V
(0.5V)
0.5V
(6.9V)
6.9V
(8.0V)
8.0V
(0V)
4.3V
(3.6V)
6.9V
(2.0V)
2.1V
(3.6V)
3.6V
(1.2V)
0V
(1.4V)
0V
(0.4V)
3.5V
(3.3V)
3.3V
4.3V (4.3V)
(4.3V)
4.3V
4.3V
(4.3V)
(3.3V)
3.3V
(2.9V)
2.9V
3.6V (3.6V)
(3.6V)
3.6V
(3.6V)
3.6V
(2.5V)
(3.0V)
(1.0V)
(5.2V)
(0V)
(0V)
(3.0V)
(2.6V)
0V (0V)
0V (0V)
0V (0V)
(4.3V)
(0.1V)
(6.9V)
1.7V
10.7V
0V (0V)
(0V)
(1.0V)
4.3V
2.6V
6.9V
6.7V
0V (11.6V)
10.1V (10.3V)
0V
0V
(2.5V)
0V
5.2V
2.5V
1.0V
0V
1.0V
4.1V
2.5V
6.3V
1.1V
6.9V
1.6V
4.3V
8.0V
3.7V
2.9V
3.5V
15.0V
11.5V
FM:11.3V
15.0V
AM:0V
The DC voltage is an actual reading measured with a high impedance type voltmeter 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
instruments used or on the product. The value shown in ( ) is actual reading measured in the AM mode.
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
CAUTION: For continued safety, replace safety critical
components only with manufacturer's recommended parts
(refer to parts list).
indicates 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 measure-
ments shall be carried out (exposed parts are acceptably
insulated from the supply circuit) before the appliance is
returned to the customer.
KRF-X9992D(K)
PCBSD2,2P(
99.11.1
6:34
PM
y [ W 2
