Toshiba VTW21FQR Instrukcja serwisowa - Strona 21

Przeglądaj online lub pobierz pdf Instrukcja serwisowa dla TV Toshiba VTW21FQR. Toshiba VTW21FQR 37 stron. Combination 21" flat tv and video cassette recorder/dvd video player/ tele text

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Toshiba VTW21FQR Instrukcja serwisowa
A
B
8
FROM REGULTOR1
AT+11.5V
P.CON+5V_C
P.CON+8V_A
P.CON+9V
7
GND
FROM/TO SECAM CHROMA/Hi-Fi
REAR_A_IN_L
REAR_A_IN_R
MONITOR_A-L
MONITOR_A-R
REC_TU_A-L
REC_TU_A-R
SOUND_A-L
SOUND_A-R
6
5
FROM/TO NICAM
CP6602
(CP6602)
4
IMSA-6035B-05Z002-PT
5
NC
NC
4
3
REC_TU_AU-R
2
REC_TU_AU-L
1
RESETQ
FROM/TO NICAM
CP6601
(CP6601)
IMSA-6035B-13Z002-PT
1
P.CON+8V[VCR]
P.CON+8V[VCR]
P.CON+8V[VCR]
3
2
SDA
SDA
SDA
SDA
SDA
SDA
3
SCL
SCL
SCL
4
GND
GND
GND
5
GND
GND
GND
6
TU AUDIO-L
TU AUDIO-L
TU AUDIO-L
7
TU AUDIO-R
TU AUDIO-R
TU AUDIO-R
8
SIF
SIF
SIF
9
NC
10
MONITOR_A-L
C4257
11
MONITOR_A-R
1 B
12
SOUND-L
13
SOUND-R
2
NOTE:THE DC VOLTAGE EACH PART WAS
MEASURED WITH THE DIGITAL TESTER
DURING PLAYBACK.
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
1
A
B
H-17
C
DEMODULATOR/21PIN SCHEMATIC DIAGRAM
VIDEO OUT
TP4201
NC
36
R4224
68 1/4W
C4260
100P
CH
21PIN JACK
REC_TU_A-R
0
2.5
0
J4201
MRC-021V-07_A
REC_TU_A-L
21
19
17
NICAM_RESET
20
18
0
0
R4217
75
21_Y
P.CON+8V_A
SDA
SCL
REAR_V_IN
SW
Q4210
2SC2412K
DEC_TU_A-L
0
R4210
TUNER_ON/OFF
DEC_TU_A-R
S814Y S814X
0.7
4.7K
0
TU_SIF
C4258
MONITOR_A-L
1
B
MONITOR_A-R
SOUND_A-L
SOUND_A-R
CAUTION: DIGITAL TRANSISTOR
C
D
E
(VCR PCB)
C4201_1
10V
100
YK
8.5
0.5
BUFFER
Q4201
1.8
2SC2412K
0
BUFFER
R4225
1.8
Q4202
2SA1037AK
100
0
C4209_1
25V
10
KA
C4229_1
25V
10
KA
35
0
0
0
0
0
0
0
0
15
13
11
9
7
5
3
1
16
14
12
10
8
6
4
2
0
0
0
0
0
0
0
0
NC
NC
R4216
75
L4201
C4215
C4216
REAR_A_IN_R
10uH
0.0022
0.0022
B
B
L4203
REAR_A_IN_L
10uH
W899
TUNER VIDEO SIGNAL
TUNER AUDIO SIGNAL
AUDIO SIGNAL(REC)
AUDIO SIGNAL(PB)
R.SIGNAL
G.SIGNAL
D
E
F
L4202
P.CON+9V
100uH
0305
R4239
4.7K
1/4W
5.1
0
PERI SW
Q4207
2SC2412K
0
C4228_1
R4209
680
25V
10
KA
C4223_1
R4220
680
25V
10
KA
MUTE SW
Q4211
2SC2412K
0
0.7
0
11.1
5.7
0
MUTE SW
3
2
1
Q4217
4.9
DTA114EKA
0
0
4
5
6
6.5
0
6.5
R4204
2.2K
0
MUTE SW
0
R4203
Q4218
0
11.1
5.7
MUTE SW
0.7
2SC2412K
Q4205
0
3
2.2K
2SC2412K
0
4
6.5
RECORD LUMINANCE SIGNAL
PLAYBACK LUMINANCE SIGNAL
RECORD COLOR SIGNAL
PLAYBACK COLOR SIGNAL
B.SIGNAL
F
G
H
8
FROM/TO CHROMA/IF
GND
TU_SIF
21_R
21_G
7
21_B
21_Y
JACK_VIDEO
FROM/TO MICON
NICAM_RESET
SCL
6
SDA
EXT_IN_L
TU_AUDIO_MUTE_H
TUNER_ON/OFF
21PIN/DVD
TO Y/C/AUDIO/HEAD AMP
REAR_V_IN
5
C4226
DEC_TU_A-L
1
B
C4204
DEC_TU_A-R
FROM/TO DVD IN/OUT
1
B
AT+11.5V
P.CON+5V_C
SOUND_A-L
SOUND_A-R
DVD_AUDIO_L
21PIN/DVD
4
DVD_AUDIO_R
C4255_1
DVD_AUDIO_L
25V
10
KA
0
3
2
1
5
6
C4254_1
0
6.5
DVD_AUDIO_R
25V
10
KA
2
PCB010
DMD027
1
G
H
H-18