10
1
2
3
4
1
2
3
4
F
E
D
C
B
A
KEH-3031/XM/EE
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM
3.1 BLOCK DIAGRAM
COM9V
2
39
N-L
8
GND
2
3
8
9
Q260
PHOTO TR
7
6
IC250
BA6219BFP-Y
MOTOR DRIVER
8
6
24
15
SUB_M+
SUB_M-
MOTOR+B
10
Q622
Q623
Q624
Q620
Q621
6
CASSETTE MECHANISM ASSY
M
MOTOR
M
MOTOR
REEL PCB
C
10
9
8
5
4
3
2
HD1
M2
M1
MAIN
SUB
HEAD
1
2
Q150
LPF
27
76
28
PLL
CF3
IC 1
1st IF 10.7MHz
2nd IF 450kHz
13
14
17 16 15
6 18 10
12
7
5
9
11
2
1 3
4
VC4
X1
10.26M
Q2
X2
CF1
D2
D1
L2
CF4
AM ANT IN
GND
AM Lo/Dx
FM ANT IN
FM/AM Vt
FM Lo/Dx
FM VCC
FM/AM VSM
FM/AM VCC
N.C
N.C
VC3
AM IFT2
AM IFT3
L5
VC1
L8
L9
L6
L7
VC2
Q3
VR2
GND
TP1
T1 FM DET
AM RF
Q1
AM OSC
FM RF
FM OSC
1
2
4
5
7
10
46
45
35
36
37
32
31
30
29
28
27
26
24
23
20
19
49
51
52
53
54
56
57
59
60
62
63
64
58
55
15
16
34
Q102
SW5V
IC150
LC72135M
1
IC200
HA12229F
EQ-AMP
6
9
16
1
20
14
13
15
7
SW5V
CN200
PHOTO DIODE
48
CN100
ANT.
TUNER AMP UNIT
FM/AM TUNER UNIT
A
OSC/MIX/IF AMP/AGC
DET/SNC/MRC/MPX
FM/AM
OSC BUFF
FM/AM S.D OUT
FM ST IDN./MONO
FM/AM IF
COUNT OUT
L OUT
(AM AF)
R OUT
(AM AF)
FM/AM
IFT1
CN250
CF2
