Toshiba 20A42 Manual de serviço - Página 21
Procurar online ou descarregar pdf Manual de serviço para TV Toshiba 20A42. Toshiba 20A42 33 páginas. Toshiba color television owner's manual 20a42
Também para Toshiba 20A42: Manual do Proprietário (37 páginas), Manual do Proprietário (19 páginas), Manual de serviço (36 páginas), Manual do Proprietário (19 páginas)
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A
B
8
0
0
1
2
8
7
4.9
0
7
C118
C101
6.3V
100
KA
0.01 F
AT+5V
R108
100 1/4W
1 CNVSS
41 NC
SDA
2 XIN
42 HVCO F/B
R107
100 1/4W
SCL
3 XOUT
43 AFC FILTER
4 TEST1
44 DEF GND
6
5 VSS
45 FBP IN
6 MCU VCC
46 H OUT
7 TEST0
47 DEF VCC
AFT
8 FILT
48 NC
R129
9 HLT
49 HI VCC
2.2K
KEY1
R113
10 VHOLD
50 R OUT
11 CVIN
51 G OUT
KEY2
2.2K
R123
12 RESET IN
52 B OUT
POWER_ON
2.2K 1/4W
13 MCU RESET OUT
53 ACL
R115
14 Y SW OUT
54 NC
22K 1/4W
REMOCON
15 V/C GND
55 PROTECT
16 3.58 XTAL
56 SDA
5
17 C-APC
57 H_CTL
18 MCU5.7V REG OUT
58 SCL
19 NC
59 NC
AUDIO_MUTE
20 CVBS IN3
60 NC
21 AUDIO IN3
61 NC
X-RAY
R125
22 V/C VCC
62 DEGAUSS_H
R127
47K 1/4W
IIC_OFF
23 MCU TEST
63 STANDBY_H
1K 1/4W
24 CVBS IN2
64 VOLUME
ON_TIMER
25 AUDIO IN2
65 NC
26 CVBS IN1
66 AFT
27 AUDIO IN1
67 KEY1
POWER_FAIL
28 5.7V REG OUT
68 KEY2
29 C(Y/C) IN
69 POWER_ON
4
30 Y(Y/C) IN
70 REMOCON
31 VREG VCC
71 AV2
32 FSC OUT
72 AV1
33 MONITOR OUT
73 AUDIO_MUTE
34 AUDIO ATT OUT
74 X-RAY
35 AUDIO ATT FILTER
75 IIC_OFF
36 TEST3
76 ON_TIMER
AT+5V
37 V RAMP F/B
77 BBE
38 V RAMP OUT
78 POWER FAIL
39 V RAMP CAP
79 X-RAY_TEST
40 8.7V REG OUT
80 EXT_MUTE
3
4.9
0
ON_TIMER
SWITCHING
4.8
Q105
KRA102MAT
R143
47 1/4W
2
OS101
RPM7138-H5
1
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
A
B
G-1
C
MICON/CHROMA/TUNER SCHEMATIC DIAGRAM
0
0
3
4
0
SW
4.9
Q609
KTC3198
0
6
5
R618
5.0
5.0
8.2K 1/4W
R110
10K
R109
10K
NC
0
0
2.0
0
0
0
5.0
4.2
5.0
0.0
4.9
3.8
5.0
64
63
62
61
60
59
58
57
56
55
54
53
52
0
0
MCU GND
2.4
IIC BUS
PGB OUTPUT Stage
DECODER
DRIVE
4.9
CUT-OFF
SDA/SCL
ROM
HV BLK
OSD
RAM
4.9
4.8
I/O
4.8
NC
4.8
NC
P-ON CONT
Power Manage.
4.9
IIC
MCU RESET
TIM
2.0
CCD
INT
4.9
PWM
CLK CONT
0
MCU
AD
CPU core
CLK
0
NC
4.6
VCO
R111
0
XO
47K
4.9
NC
MICON/CHROMA IC
1
2
3
4
5
6
7
8
9
10
11
12
13
IC101
OEC7091A
0
0
4.9
4.9
0
4.9
0
1.1
3.0
0.8
3.4
4.8
4.8
NC
C102
0.01 F
R128
560
R101
R126
2.7K
560 1/4W
CAUTION
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
C
D
E
(MAIN PCB)
H.CTL
W858
Q607
R621
KTC3198
6.0
5.0
220
5.6
C630
16V
100
KA
C629
0.01
F
NC
NC
5.0
5.0
8.3
0
8.3
2.0
0
3.5
3.7
0
6.6
51
50
49
48
47
46
45
44
43
42
41
8.7
4.8
Ver.Proc.
4
4.4
Hor.Proc.
V_OUT
Ver SYNC SEP
SYNC SEPA/Hor.VCO
Ver.COUNT DOWN
Hor.COUNT DOWN
2.5
R606
V RAMP
V_FEEDBACK
AFC-1/H COINCIDENT
AFC-2 H PHASE
27K
1/4W
0
2.8
C622
50V
1
KA
3.5
AUDIO_OUT
RGB Proc.2
RGB Proc.1
OSD SW
0.7
1
RGB MATRIX
CONTRAST
NC
BRIGHTNESS
COLOR CONT
3.0
NC
9.0
Chroma Proc.
Vldeo Proc.
P.CON+5V
2.9
ACC/C-BPF
C-TRAP/YDELAY
NC
APC/KILLER
SHARPNESS
TUNER+5V
2.6
TINT/DEMO
BLACK STRETCH
NC
Y MUTE
5.6
R604
LPF
6bB AMP
ATT
100
2.2
C614
MONO_F_A_IN
50V KA
1
C612
1.9
VIDEO_IN
50V
1
KA
VCXO
2.2
STEREO+5V
R624
NC
75
14
15
16
17
18
19
20
21
22
23
24
3.4
0
3.3
2.8
5.5
0.0
0
4.9
0
1.9
0
NC
NC
C609
0.01 F
C610
C616
TU_AUDIO
6.3V
47
KA
50V
1
KA
C615
TU_VIDEO
50V
1
KA
5.5
4.9
8.8
R603
120 1/4W
5V REG
Q601
KTC3203_Y
:SINCE THESE PARTS MARKED BY
ARE
ATTENTION
:LES PIECES REPAREES PAR UN
CRITICAL FOR SAFETY,USE ONES
DANGEREUSES AN POINT DE VUE SECURITE
DESCRIBED IN PARTS LIST ONLY
N'UTILISER QUE CELLS DECRITES
DANS LA NOMENCLATURE DES PIECES
D
E
F
G
ACCESSORY
BT001
R03(AB)E_2P_G
BT002
TM101
R03(AB)E_2P_G
RC-EH020
R608
1K 1/4W
C623
16V
100
YK
8V REG
R607
Q606
KTC3203_Y
100
C621
16V
47
YK
C620
0.01 F
D603
D604
R605
1SS133
MTZJ8.2B
180 1/2W
5V REG
Q602
4.9
KTC3203_Y
5.5
7.2
R629
C617
12 2W
7.2
10V
100
YK
5.5
5V REG
4.9
Q603
C001
1
NC
W815
KTC3203_Y
C002
0.022 F
2
NC
7.2
6.3V
1000
YK
TUNER+5V
5.5
3
5V REG
5.0
4
NC
Q610
KTC3203_Y
5
NC
6
NC
7
NC
8
NC
9
NC
R004
10
100
R003
11
100
12
13
R001
W844
14
NC
68K 1/2W
R002
15
68K 1/2W
16
NC
TU001
ENG36A01G
17
W830
LUMINANCE SIGNAL
CAUTION: DIGITAL TRANSISTOR
DEFLECTION SIGNAL
ETANT
AUDIO SIGNAL
TUNER VIDEO SIGNAL
F
G
H
8
FROM/TO DEFLECTION/CRT
7
CLAMP
CLAMP_OFF
V_OUT
GND
V_FEEDBACK
ABCL
H_OUT
X-RAY
R.OUT
UNREG+12V
G.OUT
B.OUT
H_SYNC
6
FROM/TO TV POWER
REMOTE+12V
POWER_FAIL
UNREG+12V
X-RAY
DEGAUSS_H
GND
TU+BT
P.CON+5V
5
FROM AV
VIDEO_IN
MONO_F_A_IN
GND
REMOTE+12V
4
TO SOUND
AUDIO_OUT
GND
AUDIO_MUTE
3
STEREO+5V
TEST POINT
CP601 173979-7
NC
7
SCL
NC
6
GND
5
SDA
IIC_OFF
IIC_OFF
4
SDA
AFT
SDA
3
SCL
SCL
2
TU_AUDIO
GND
1
2
TU+BT
TU_VIDEO
PCB010
TMC563
R.SIGNAL
1
G.SIGNAL
B.SIGNAL
H
G-2