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4-1. BLOCK DIAGRAM (1)
BALUN
T101
STRAP
ANTENNA
J101
EXT ANT
ANT
IF
UB
TU101
AGC
TUNER
HB
LB
MB
TU
CHANNEL DISPLAY
POSITION CH1
CHANNEL DISPLAY
POSITION CH12
T1 (TUNER, VIF/SIF DET)
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SECTION 4
DIAGRAMS
IF
IF AMP
Q201
IC001
TUNER CONTROOL
BS
BS
SWITCH
28
COMPOSITION
Q010-012
TUNING
CONTROL
U/V
BAND
27
SELECT
BAND
SELECT
AUTO
RETURN
+4.5V
BT
BUFFER
AMP
BT
INITIAL
26
Q001
Q002
GEN.
SET
RV001
UP
18
CHANNEL DISPLAY
BAR
DISPLAY
POSITION CH13
UA
POSITION
22
ADJUST
20
VLP
RV002
19
VHP
V LOW
23
VHA
RV004
24
VLA
V HI
– 9 –
IF
FILTER
SWF201
IF
3
DEFEAT
DEF
14
OUTPUT
FH
SIGNAL
FH SWITCH
1
DEFECT
Q005
H SYNC
4
AFC
COMPARATOR
5
Q007
AFC SWITCH
SUD
6
CHARGE/
DISCHARGE
CS
INV., SWITCH
10
CIRCUIT
Q003,004
V
BAR
30
OUTPUT
U
31
IC201 VIF/SIF DET
IF
IF
6
IF
7
IF AMP
LLD
REF COIL
AGC OUT
19
VIDEO
3
AGC IF
REF COIL
DET
20
AGC DL
RV201
4
RF AGC
E-VDL
AUDIO
INV.
14
BUFFER
13
Q205
FM DET
FM
15
DET
LIM
SIF
16
LIMITER
10
CF202
SYNC
SYNC
23
SEP
AFT
DET OUT
VIDEO
17
AFT
18
AMP
AFT
AFT COIL
SYNC SEP
21
22
CN201
12
UB
2
VHF
3
H.P
AUDIO
5
AUDIO
TO
AUDIO
A BOARD
CN502
CF203
AUDIO
VIDEO
BUFFER
9
VIDEO
Q202
CF201
7
H SYNC
8
IND
11
UP DOWN SW
– 10 –
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