– 7 –
SCHEMATIC DIAGRAM
FM ROD ANT
W6
C5
10/10
C4
0.022
C24
0.01
TP1
D1
1N4148
D2
1N4148
C1 47p
C3 47p
C6
5p
TC4 VC10
L6
(AM BAR ANTENNA)
B
W
G
R
C7 22p TC1
VC1A
L3
FM SPRING COIL
L6, TC4
AM TRACKING
ADJUSTMENT
L3, TC1
FM TRACKING
ADJUSTMENT
VC1B
TC2
C8 27p
R8 1.5K
L2
FM SPRING
COIL
L2, TC2
FM FREQUENCY
RANGE ADJUSTMENT
C10
2p
C26
0.01
VC1C
L5 AM OSC COIL
TC3
C9
6p
L5, TC3
AM FREQUENCY
RANGE ADJUSTMENT
C12 3.3 / 50
PVC1
PVC AM/FM FC-22125-4N000-0
TC1 - 4
VC10, 1A, 1B, 1C
TUNE
(
)
R11 1K
C25
0.022
1
2
3
ROTARY VOL
R121S-10-1.5F-A50K
VR1
VOL
R1
15K
L1
FM SPRING COIL
C2
25p
TP2
R2 1.2K
R3 330
R6 100K
14
FM / AM
IF OUT
13
RF
GND
BAND
SELECT
15
12
FM
RF IN
11
NC
AM
IF IN
16
FM
IF IN
17
R9 220
NC
18
10
AM
RF IN
TUNING
METER
19
IF
GND
20
9
FM
RF
8
REG
OUT
7
FM
OSC
AFC
AGC
21
AFC
AGC
22
DET
OUT
23
6
AFC
5
AM
OSC
AF
IN
24
4
VOL
3
NF
2
FM
DISC
1
RIPPLE
FILTER
VCC
26
OUT
27
GND
28
MUTE
25
IC1 KA22426D
AM / FM TUNER SYSTEM & POWER AMP
R10
150
CF3 10.7MHZ
L9
1.5uH
SW2 NM
W1
W4
W5
BATTERY
R6 X 2
(DC 3V)
SPEAKER
4 ohms
SP-
SP+
W3
W2
SW1
SWITCH
SKA-12D01S-G4-NA
AM
FM
2
3
1
1
2
3
4
5
AM IF ADJUSTMENT
T1
AM IFT
C13
0.01
CF1
450KHZ
CF2
10.7MHZ
R4
1K
C14
10 / 10
C15
4.7 / 50
C16
10 / 10
C17
0.022
TP3
C18
0.47 / 50
R5
4.7K
LED1
DIA3.0MM
LED LAMP
(RED)202HD
TUNING
INDICA
T
O
R
C22
0.1
C20
0.1
C21
470 / 10
C19
10 / 10
TP4
C23
470 / 10
R7
22
HP1
1
2
3
4
5
IC1
KA22426D
VOLTAGE CHART
VCC = 3.0V
PIN
FM
AM
PIN
FM
AM
1
0
0
15
1.28
0
2
2.18
2.70
16
0
0
3
1.50
1.50
17
1.27
0
4
0.76
0.76
18
0
0
5
1.22
1.22
19
0
0
6
1.42
1.07
20
0
0
7
1.22
1.22
21
0.82
1.47
8
1.22
1.22
22
1.43
1.08
9
1.22
1.22
23
1.61
0.97
10
1.22
1.22
24
0
0
11
0
0
25
2.70
2.70
12
0.32
0
26
3.00
3.00
13
0
0
27
1.52
1.52
14
0.40
0.10
28
0
0
SIGNAL :
FM
AM
NOTE :
CXX
LXX
RXX
+
+
NM = NO MOUNT
1
2
3
5
MAIN C.B
