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SECTION 4
DIAGRAMS
4-1. BLOCK DIAGRAM (1)
BS
COMPOSITION
28
SELECT
BAND
BS
U/V
CONTROL
TUNING
BAND
SELECT
BT
26
GEN.
BT
RETURN
AUTO
INITIAL
SET
CHARGE/
DISCHARGE
CIRCUIT
DEFEAT
OUTPUT
DEFECT
SIGNAL
3
HP
14
1
4
5
COMPARATOR
6
10
DEF
FH
H SYNC
AFC
SUD
CS
18
UP
UA
22
OUTPUT
BAR
V
30
U
31
BAR
DISPLAY
POSITION
ADJUST
RV001
LB
HB
UB
MB
TU
Q001
BUFFER
Q002
AMP
FILTER
SWF201
IF AMP
Q201
IF
AGC
TU101
TUNER
6
7
3
IF AMP
IF
IF
AGC OUT
AGC DL
AGC IF
4RV201
DET
VIDEO
20
19
REF COIL
REF COIL
AUDIO
13
BUFFER
FM
DET
14
E-VDL
15
FM DET
16
LIM
INV.
Q205
FH SWITCH
Q005
CF202
LIMITER 10
SIF
DET OUT
18
SEP
SYNC
AFT
SYNC
23
AFT
17
VIDEO
AMP
SYNC SEP
22
AFT COIL
21
AFT
Q007
Q003,004
INV., SWITCH
CF203
CF201
Q202
BUFFER
LLD
2
3
5
9
7
8
IND
H SYNC
VIDEO
AUDIO
H.P
VHF
CN201
T1 (TUNER, VIF/SIF DET)
IC001
TUNER CONTROOL
IC201 VIF/SIF DET
UB12
+4.5V
UP DOWN SW11
20
19
RV002
V LOW
23
24
RV004
V HI
VLP
VHP
VHA
VLA
RF AGC
TO
A BOARD
CN502
AFC SWITCH
IF
IF
IF
IF
VIDEO
AUDIO
AUDIO
AUDIO
27
SWITCH
Q010-012
J101
EXT ANT
ANT
CHANNEL DISPLAY
POSITION CH13
CHANNEL DISPLAY
POSITION CH1
CHANNEL DISPLAY
POSITION CH12
T101
BALUN
STRAP
ANTENNA