Aiwa TV-AR205, Руководство по обслуживанию

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16 15
SCHEMATIC DIAGRAM-4 (MAIN C.B-4/6)
HSY N
B_OSD
G_OSD
PAL-N
VD1
GND_1
R_OUT
R_OUT
B_OUT
B_OUT
BC
BC
H_V CC
-V. DR
+V. DR
G_OUT
G_OUT
AGC
SDA
PAL-M
SCL
AUD
FI
VD2
8V
8V
8V 8V
8V
8V
HOU T
FBLK
R_OSD
+12 V
ABL
9V
9V
9V
CF201
R228
DZ202
R506 R504
IC 50 1
R216
R215
Q202
C212
C405
R403
C404
C403
R406
R405
C406
C301
C604
C602
C603
R502
C501
C502
R505 R503
C504
C503
X503
X502
Q502 Q501
C505
X501
R602
CF601
C601
R601
R760
Q705
R761
R5
1
0
R5
0
9
R5
0
8
R5
0
7
R219
R207
R209
R208
D201
C207
R210
C206
C211
C209
R213 C205
C204
R402
R401
C4
0
2
C
401
C210
R206
L20 1
R205
R204
R201
R202
SF101
C103 R301
R105
C102
C203
R203
Q201
C201
C217
R218
C2
1
6
R404
C652
R764
Q709
R765
Q708
R762
Q707
R763
Q706
Q704
JS1
CN501
TPS4.5 MB
2M2
8V2(N)
22k (N)
22k
(
N
)
TDA884 1
330 R
470R
(
N
)
BC847
2u2F
/
1
00V
2k2 pF/ 50V
18k
1uF/10 0V
4k
7pF
/
50V
4k7
1k5
1kp F/5 0V
100k
pF
/
1
60V
_P
P
(N
)
33p F/5 0V
1kp F/5 0V
10u F/1 6V
100 k
100 kpF /25 V
3k3 pF/ 25V
47k 47k
10k pF/ 50V
10k pF/ 50V
PAL-N
PAL-M
BC847 BC847
10k pF/ 50V
NTSC
1K2
SFE4.5
100pF
/
50V
100 R
560 R(N)
BC8 57B
4k7 (N)
220R
(
N
)
220R
(
N
)
220R
(
N
)
1K
(
N
)
75R
470 R/1 W
18k (N)
18k (N)
1N4148 (N)
10u F/1 6V
2k2 (N)
100 kpF /50 V
10k
p
F
/
50V
47k
p
F
/
25V
100 R 22k pF/ 50V
2u2F
/
100V
100 R
100 R
33pF
/
50V
33pF
/
50V
100k
p
F
/
25V
1K2
15u H
10R
180 R
1k
4R7(N)
F6221
M1971M/
.
4
7uF
/
100V 39k
/
1%
(N
)
560 R
100k
pF
/
2
5V
100 kpF /50 V
180 R
BC847
10u F/1 6V
47p F/5 0V
470 R
47pF
/
50V
27K
100pF
/
25V
560 R(N)
BC857B
4k7 (N)
BC847B
560 R(N)
BC857B
4k7 (N)
BC847B
BC847B
F_
B
L
A
N
K
SYSTEM
IDE NT
BANDPASS
DEM
SWITCH
REFERENCE
CHROMA
CHROMA
VCX0
90 0
ROTATE
PHASE
DETECTOR
BURST PHASE
RGB
BLANK
8V
- +
/ST OP
SLOW/START
CVBS
R-Y/B- Y
R-Y/B- Y
R-Y/B- Y
MATRIX MATRIX
RGB
INS ERT ION
PIP /OSD
SWITCH
DE BRI LHO
CONTROLE
GAIN
R G B
R G B
DET
WHITE
PEAK
GENERATOR
SANDCASTLE
FASE
HORIZO NTAL
IF_ AMP
R G B
CIRCUIT
CUT OF F BLACK LEVEL
CIRCUIT
ADJUST
DETECTOR
COINCIDENCE
DIV IDE R
VERTIC AL
OSC
HOR
CVBS SEP
SIN C
BANDPASS
CHROMA
DET
ACC
& C ORING
PEAKIN G
CO
M
P
VI
D
E
O
160 ns
160 ns
DELAY
DELAY
CIRCUIT
AUTO ADJ
SEL ECT
CVBS&SVHS
E-W
E-W
TRACK
TRACK
VERT
PROCESS PROCESS
GEOMETRY GEOMETRY
DETECTOR
VOLTAGE
OVER
GENERATOR
SAWTOOTH
VERTIC AL
VERTIC AL
CONTROL
I2C
DEMOD
VIF
DET
AGC
OVER
TIMER
TUNER
PLL
VCO
VOL
OUT
OUT
AUDIO
AUDIO
DET
FM
BPF
(B
-
Y
)
_
O
U
T
(R
-Y
)_
O
U
T
(B
-Y
)_
I
N
(R
-Y
)_
I
N
SEC
A
M
_
R
E
F
NT
_
X
T
A
L
PAL
_
XT
AL
APC
_
F
I
L
T
ER
VC
C
V
I
D
E
O_
OU
T
BPH
HO
R_
O
U
T
SC
P_
F
B
P
PH
I
2
PH
I
1
GND EW/ DRV
+VDRIV E-
EH
T
VER
T
_
R
AM
P
RE
F
_
C
U
R
AG
C
_
D
E
C
RF
_
A
G
C
DE
E
M
P
H
S
O
UND_
DE
C
Y_
O
U
T
Y_
I
N
B_
I
N
G_
I
N
R_
I
N
BEAM
_
C
U
R
R_
O
U
T
G_
O
U
T
B_OU
T
VI
D
E
O
_
O
U
T
AU
D
I
O
_
O
U
T
GND
VI
D
E
O
_
I
N
Y/
VI
D
E
O
_
I
N
IN
T
/
VCC
CH
RO
M
A
_
I
N
BG
_
D
EC
SD
A
SC
L
PL
L
CO
IL
VC
C
AU
D
I
O
_
I
N
EX
T
/
SI
F
56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29
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5
4
3
2
1
2
1
3
4
5
To
MAIN C.B
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MAIN C.B
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To
MAIN C.B
-6/6
MAIN C. B -4/6 (AUDIO/VIDEO PROCESS SECTION)
C.C
4
6
10
To
MAIN C.B
-3/6
To
NK C.B
CN501
8