Toshiba 20AF44 Manual de serviço - Página 22

Procurar online ou descarregar pdf Manual de serviço para TV Toshiba 20AF44. Toshiba 20AF44 41 páginas. Color television
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Toshiba 20AF44 Manual de serviço
A
B
ACCESSORY
8
BT001
R03(AB)E_2P_G
TM101
BT002
R25-1943
R03(AB)E_2P_G
LED SW
Q101
KTC3875S_Y_RTK
7
R101
560
R103
2.7K
TO SOUND
6
TV_MUTE
BBE_SW
FROM TUNER/STEREO
5
AFT
FROM/TO AV
EXT_MUTE
S_IN
AUDIO_SW
4
FROM/TO DEFLECTION
H_CTL
X-RAY
FROM/TO POWER
X-RAY
P.FAIL
3
DEGAUSS_H
GND
POWER
TO COMB FILTER
Y/C_SW
2
1
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
A
B
G-1
C
MICON SCHEMATIC DIAGRAM
OS101
RPM7138-WH5
5.0
B+
3
0
GND
2
4.9
Vout
1
2.7
R109
0
1K
0
R106
220P
560
MICON IC
C142
IC101
OEC7090A
220P CH
5.0
0
H_CTL
AUDIO MUTE
C143
R118
4.0
0
220P CH
2.2K 1/4W
EXT MUTE
PROTECT
0
5.0
VOLUME
12C_OFF
NC
R110
0
2.1
10K
BBE SW
SYNC
3.2
4.0
AFT
H SYNC
R112
5.0
4.8
KEY 1
V SYNC
2.2K
R113
5.0
0
KEY 2
BLUE B
2.2K
2.2
0
X RAY
GREEN G
R114
5.0
0
REMOCON
RED R
47K
0
0
ON_TIMER
BLANK
R119
0
5.0
22K 1/4W
S_IN
CLOCK_CNT
NC
C140
0
5.0
220P CH
Y/C_SW
SDA1
C141
5.0
5.0
220P CH
AUDIO_SW
SCL1
0
5.0
NC
NC
POWER
3.5
5.0
P FAIL
MCU_CLOCK
5.0
5.0
DEGAUSS H
RESET
3.2
2.4
X-RAY TEST
CVIN
NC
0
2.0
CNVSS
VHOLD
C102
27P CH
2.3
2.0
X.IN
HLF
X101_1
100CT8R005
C104
27P CH
1.7
1.0
8MHz
FILT
X.OUT
1
0
5.0
VSS
VCC
C109
0.1
B
C
D
E
(MAIN PCB)
C145
CH
1.8
R130
R150
0
CLAMP SW
Q103
47K 1/4W
KTC3875S_Y_RTK
1K
0
C120
C146
R126
0.001
B
33P CH
100
C144
150P CH
R127
C131
6.8K
R128
150P CH
6.8K
R129
6.8K
R139
R135
4.7K
100
1/4W
R140
R136
4.7K
100 1/4W
2
R134
10K
C115
R138
820P CH
C113
R132
1M
C111
0.1
B
100 1/4W
R131
C122
0.001 B
C119
1K
50V
1
KA
220P CH
R125
C121
C117
10
0.01
B
47P
CH
R133
1K 1/4W
C128
0.1
F
W822
NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
D
E
F
G
CP101
FROM/TO CHROMA
AT+5V
PROTECT
CLAMP_OFF
SYNC_OUT
HD
VD
OSD_Y
OSD_B
OSD_G
OSD_R
D104
OSD_BLK
1SS133
SW_Y_OUT
RESET
POWER
SDA
SCL
W811
D105
1SS133
FROM/TO TUNER/STEREO
J_AUDIO_OUT_R
J_AUDIO_OUT_L
4
SDA
SCL
3
FROM/TO SOUND
SDA
SCL
5.0
5.0
0
5.0
5
6
7
8
4
3
2
1
0
0
0
0
F
G
H
8
173979-7
GND
1
I2C_SCL
2
7
I2C_SDA
3
I2C_OFF
4
GND
5
AUDIO L
6
AUDIO R
7
6
5
4
3
2
PCB010
TMC559
1
H
G-2