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SECTION 4
DIAGRAMS
4-1. BLOCK DIAGRAM
BS
COMPOSITION
28
27
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
BA R
V
30
U
31
BAR
DISPLAY
POSITION
ADJUST
RV001
U LOW
UA
RV003
VB
BS
SW
Q006
UB
S601
(1/2)
MB
TV
Q001
BUFFER
Q002
AMP
FILTER
SWF201
IF AMP
Q201
IF
AGC
RF IN
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 SW
Q005
CF202
LIMITER 10
SIF
DET OUT
18
SEP
SYNC
AFT
SYNC
23
AFT
17
VIDEO
AMP
SYNC SEP
22
AFT COIL
21
AFT
S001 S002
Q007
AFC SW
Q003,004
INV/SW
CF203
CF201
Q202
BUFFER
LLD
2
3
5
9
7
8
8
7
9
5
3
2
IND
H SYNC
VIDEO
AUDIO
H.P
VHF
CN201 CN502
T(TUNER,VIF/SIF DET,TUNING)
RV501
2
3
VCC
6
7
V+
J501
PHONES
SPEAKER
CN601 CN301
VHF
H.P
VIDEO
H SYNC
IND
2
3
9
7
88
7
9
3
2
(2/2)
S601
F601
9
8
4
PORT SW
Q601-603
RV601
PORT SW
Q610
3
7
6
1
T601
+30V
+4.5V
Q401
BUFFER
+30V
11 11BRT
RV450
5
1
4
2
3
DRIVE
Q701
DRIVE
Q702
8
6
T701
BACK
LIGHT
DC IN
J701
BATTERY
A(DC IN,B/L INV)
BUFFER
Q403
40
37
R2
HSO
V IN
34
Q303
SYNC SEP
35 H IN
IND SW
Q408
38 INB
R40
Q302
INV
51
29
19 10
21 11
23 12
RV301
X301
3.58MHz
VIDEO IN
SYNC SEP
TINT CONT
VCXO IN
VCXO OUT
HD IN
CONTRAST
R OUT
G OUT
B OUT
IC301 Y/C/J
IC001 TUNER CONTROL
IC201 VIF/SIF DET
IC501 HP AMP
27
29
28
23
B IN
G IN
R IN
AUTO CB
1
24
40
2
3
4
5
6
7
8
9
CP
CL2
CLB
CLA
D2
D3
D4
D1
BESTB
22
38
21
37
20
36
12
28
11
27
10
26
9
25
13
29
2
6
23
39
4
3
TPR2
TPR1
VM
VM
VM
VSS
17
18
33
34
16
32
15
31
VDG
VDR
VDG
VDR
VDB
VDB
VS2
VS2
BUFFER
Q402
Q406
SW
VM BUFFER
Q407
13TPR1
12
TPR1B
DB 10
XTD
XT1
4.5MHz
X401
21
20
30TGL VL
RV402
IC401
MONITER CONTROL
B(HP AMP,MONITOR CONTROL,CHROMA)
LCD
MONITOR
CP
CP
CL2
CL2
CLB
CLB
CLA
CLA
D2
D2
D3
D3
D4
D1
D1
RES
RES
UB 1212
+4.5V
UP DOWN SW 1111
UP
D701
DOWN
+4.5V
+4.5V
20
19
RV002
V LOW
23
24
RV004
V HI
VLP
VHP
VHA
VLA