– 19 –
– 20 –
12
345
67
A
B
C
D
E
F
G
H
I
A
ELECTRNIC TUNING,
VIF, SIF
– A BOARD –
< Component Side >
< Conductor Side >
INPUT
CONTROL
AUT
O
RETURN
PLUSE WIDTH
SET
SIGNAL
DET
DEFEA
T
OUT
BT
GENERA
T
O
R
BAR DISPLA
Y
POSITION
ADJUST
CHARGE/
DISCHAGE
INITIAL
RESET
COMP
ARA
T
O
R
BAR OUTPUT
BS ADD
BAND
SW
TUNING
CONTROL
BS
T
O
P
5
3
2
4
1
6
AFC
H.P
.
M.M.
H.syn
FH
SUD
13
14
15
17
ST
OP
DEF
UP
DN
CHCAL
7
27
8
L/H
U/V
23
24
VHA
VLA
Vcc 5V
BR
T
28
BS
30
V OUT
31
U OUT
20
VLP
18
UP
19
VHP
21
CON
22
UA
10
C.S.
12
11
CHA
MANU
26
32
2625
16
9
BT
NC
NC
NC
NC
29
GND
A BOARD : IC001 AN5707NFAP
GND (SIF)
DC F/B
SIF IN
Vcc (SIF)
GND (VIF)
IF IN
IF IN
Vcc (VIF)
RF AGC
DELA
Y
RF
AGC OUT
AGC FIL
TER
II
AGC FIL
TER
I
13
AUDIO OUT
14
E-VDL
15
FM DET
IN
16
LIMITER OUT
17
AFT
OUT
18
VIDEO OUT
19
REF COIL
20
REF COIL
21
AFT
COIL
22
SYNC SEP
IN
23
SYNC OUT
24
12
11
10
9
8
7
6
5
4
3
2
1
IF AGC ADJ
BUFFER
IF AGC
DET
VIDEO AMP
AFT
1st
Amp
AGC
2nd
Amp
VIDEO
DET
SYNC
SEP
FM DET
LIMITER
A BOARD : IC201 M51348AFP
DIODE
*
D001
H-6
6
D002
I-7
4
D601
G-6
3
D602
C-7
6
D603
G-6
3
D604
G-6
3
D605
G-6
3
IC
IC001
B-7
IC201
G-4
TRANSISTOR
*
Q001
G-3
1
Q002
G-2
!™
Q003
H-6
1
Q004
I-6
1
Q006
G-2
!¡
Q007
H-7
1
Q201
G-3
1
Q202
B-5
2
Q203
H-4
1
Q601
C-6
2
Q602
F-5
1
Q603
D-6
2
Q610
C-6
2
VARIABLE
RESISTOR
RV001
B-6
RV002
B-6
RV003
B-6
RV004
B-6
RV201
C-4
RV601
C-5
A BOARD
