Toshiba VTW21FQR Service Manual - Page 22

Browse online or download pdf Service Manual for TV Toshiba VTW21FQR. Toshiba VTW21FQR 37 pages. Combination 21" flat tv and video cassette recorder/dvd video player/ tele text

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Toshiba VTW21FQR Service Manual
A
B
8
7
FROM Y/C/AUDIO/HEAD AMP
W839
Y/C_VIDEO
FROM REGULATOR1
6
P.CON+9V
P.CON+5V_C
D1202
AT+5.6V
SB140-EIC
GND
5
W897
0
0.8
1.6
1
2
3
16
15
14
1.5
0
1.6
4
TO CHROMA/IF
W801
SW_OUT_B
W802
SW_OUT_R
W812
SW_OUT_G
3
SW_OUT_Y
TEXT_SYNC
FROM/TO MICON
SCL
SDA
OSD_R
OSD_G
2
OSD_B
OSD_Y
TEXT_RESET
D1252
1SS133
1
A
B
H-19
C
T'TEXT/RGB SW SCHEMATIC DIAGRAM
0
0.8
0.8
0
1.5
4
5
6
7
8
C1202
13
12
11
10
9
5.1
0
1.5
0
1.6
16V
100
YK
C1273
16V
100
YK
C1274
16V
100
YK
4.8
W884
0.3
0
BLK BUFFER
Q1262
2SC2412K
R1289
3.3K
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
C
D
E
(VCR PCB)
L1203
5.1
3.1
BUFFER
10uH
0305
Q1101
3.8
KTD863_Y
R1115
560
3.8
BUFFER
Q1104
2SC2412K
0.9
R1108
0.4
820
L1205
10uH 0305
C1279
270P CH
R1255
330
4.8
C1257
SYNC BUFFER
2.3
6.3V
47
KA
Q1253
2SC2412K
1.7
R1251
100
R1256
100
R1280
100
B1201
W4BRH3.5X6X1.0
NOTE:THE DC VOLTAGE EACH PART WAS
MEASURED WITH THE DIGITAL TESTER
DURING PLAYBACK.
D
E
F
G
0
0
0
0
0
3.4
3.4
1.4
0
3.4
52
51
50
49
48
47
46
45
44
0
CHIPSEL1
2.6
SCL
2.6
51 FLAG2
42 OSC OUT
SDA
52 CHIPSEL0
41 OSC IN
0.2
40 GND2V3
TDO
4.9
VDD5V1
0
T'TEXT IC
GND3V4
IC1201
0
ET-TVT0310A/Q
GNDA1A
C1208
2.2
VREFP
0.1
F
1.3
C1209
VREFN
3.4
0.1 F
VDDA1
C1207
1.9
28 BLUE
VINP
27 BLANK
6.3V
47
KANP
0
GNDA1B
0
14
15
16
17
18
19
20
21
22
0
1.2
1.7
3.4
0
1.5
3.6
3.4
2.4
B.SIGNAL
R.SIGNAL
G.SIGNAL
F
G
H
8
7
6
X1201
100CT01302
13875KHz
5
0.7
0.7
0
43
42
41
40
3.4
VDD3V1A
R1206
C1219
3.4
VDD3V1B
100
0.022 B
C1220
1.7
PLLRC1
0.1
F
0
GND3V1B
0
GND3V1A
0
4
GND3V5
5.0
VDD5V2
C1218
2.8
RSTB
1
F
0
R1211
D1201
MUTE
NC
560
1SS133
2.4
1/4W
RED
C1224
2.4
0.47 B
GREEN
2.4
2.5
3
23
24
25
26
0
2.6
0
0
R1210
10K
1/4W
2
PCB010
DMD027
1
H
H-20