Toshiba 24AF41 Instrukcja serwisowa - Strona 20

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Toshiba 24AF41 Instrukcja serwisowa
A
B
8
FROM/TO AV
C.OUT
Y.OUT
5
R214
TUNER_VIDEO
270
1
7
FROM/TO AV
2
CD701B
3
CH244002
4
TV BUFFER
Q203
2SA1037AK
L204
2.4
12uH
3.1
0
CF203
EFCT4R5MW5
6
S803X
5
FROM/TO POWER
4
GND_SIGNAL
P.CON+9V
P.CON+5V
GND_POWER
FROM/TO MICON/TUNER
AFT_OUT
3
AGC
W844
IF
2
FROM/TO AV
FSC_OUT
TUNER_AUDIO_L
TUNER_AUDIO_R
NOTE:
THE DC VOLTAGE AT EACH PART WAS MEASURED
NOTE:
THE RESISTOR MARKED F IS FUSE RESISTOR.
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
THE ALUMI ELECTROLYTIC CAPACITOR MARKED NP
1
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
IS NON POLAR ONE.
A
B
C
CHROMA / IF SCHEMATIC DIAGRAM
C613
9.0
1 B
3.7
AUDIO
3.1
BUFFER
C213
Q201
2SC2412K
10V
100
YK
C212
0.1 B
R205
TV BUFFER
9.0
Q202
4.1
100
2SC2412K
6
3.5
R210
0
4.1
2.4
9.0
2.4
3.7
2.8
3.6
2.4
56
55
54
53
52
51
50
49
48
47
150
1
2
3
4
5
6
7
8
9
10
3.0
5.0
0
0
0
0.1
2.7
3.2
2.1
NC
12
R209
33K
W839
W849
C207
C220
5P CH
C205
0.1 B
C221
3P CH
0.01 B
PRE AMP
6.2
5
4
3
2
1
1.3
Q204
OUTOUT G IN IN
R635
2SC2814
CF202
33K 1/4W
0.6
SAF45MFX220ZR
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
C
D
E
S802Y
W842
7
W840
9
C615
10V
100
8
YK
C610
0.68 TF
2.5
1.9
2.4
2.5
2.5
2.5
2.7
1.5
0
6.0
4.9
9.0
7.1
4.0
46
45
44
43
42
41
40
39
38
37
36
35
34
33
11
12
13
14
15
16
17
18
19
20
21
22
23
24
2.0
2.9
1.6
5.0
4.8
4.8
4.8
0
2.2
0.1
2.2
2.2
2.2
9.0
C602
0.1 B
13
14
15
D611
D613
1SS133
D614
1SS133
1SS133
4.2
0
V.BLK
Q604
0
2SC2412K
C935
50V
4.7
KA
NC
2.3
2.3
2.3
2.3
0
5.0
24
23
22
21
20
19
18
OUT SW
DAC
ZAP
IIC Decoder
AGC
AUDIO_L
Switch
L-R Filter
L-R Demod
TP901
Matrix
De-Emph
(L-R)/SAP
75us
L+R Filter
L+R Demod
Filter
Cancel
SAPout
Offset
fH.2fH Trap Filter
Expand
Cancel
Wide Band
RMS Det
Offset
dbx De-Emph
Wide Band
1
2
3
4
5
6
7
0
2.3
2.3
2.2
2.2
0.4
D
E
F
G
(MAIN PCB)
11
10
R608
270 1/4W
2.1
0
6.0
3.4
2.0
32
31
30
29
25
26
27
28
5.0
5.0
1.1
9.0
6.0
R625
120K
C636
0.1 B
W816
5.0
0
3.7
3.6
2.6
3.7
17
16
15
14
13
GND
Det
VCA
Det
St.PLL
Pilot
Input
SAP
Cancel
Pilot
Filter
Filter
Filter
Stereo
Noise
SAP
Demod
Filter
Filter
SAP
Wide Band
Spectral
Expand
RMS Det
Det
Spectral
Spectral
Noise
Vcc
8
9
10
11
12
5.1
2.4
2.4
0.4
2.3
3.4
L901
22uH
F
G
H
8
FROM/TO MICON/TUNER
SYNC_OUT
SDA
SCL
OSD_B
7
OSD_G
OSD_R
OSD_BLK
R.OUT
6
5
4
FROM/TO DEFLECTION
V.OUT2
H.OUT
AFC
EW_OUT
ABCL
VM_OUT
B.OUT
3
G.OUT
R.OUT
V.OUT1
2
1
PCB010
TMX481
H