Toshiba 20AF44 Panduan Servis - Halaman 23

Jelajahi secara online atau unduh pdf Panduan Servis untuk TV Toshiba 20AF44. Toshiba 20AF44 41 halaman. Color television
Juga untuk Toshiba 20AF44: Panduan Pemilik (36 halaman), Panduan Pemilik (36 halaman)

Halaman Cetak
Toshiba 20AF44 Panduan Servis
A
B
8
FROM/TO AV
VIDEO_IN2
V_IN[YUV]
VIDEO_IN1
U_IN[YUV]
Y_IN[YUV]
VIDEO_IN3
VIDEO_OUT
7
P.CON+5V
FROM/TO COMB FILTER
C_V_OUT_SW
P.CON+5V
Y_V_OUT_SW
VIDEO_OUT
6
P.CON+8V[A]
FSC_OUT
FROM/TO TUNER/STEREO
TUNER_VIDEO
TUNER+5V
5
P.CON+8V[B]
P.CON+5V
6dB AMP
TO SOUND
Q603
KTC3875S_Y_RTK
P.CON+8V[B]
P.CON+5V
4
FROM POWER
UNREG+12V
GND
FROM/TO DEFLECTION
3
P.CON+5V
P.CON+8V[A]
GND
V_OUT
EW_OUT
H.OUT
H_SYNC
ABCL
2
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
1
A
B
G-3
C
CHROMA SCHEMATIC DIAGRAM
R603
330 1/2W
2.7
0
3.0
48
47
46
P.CON+5V REG
2.2
C641
Q606
C IN(Y/C)
KTC3209_Y
R602
R649
0.1
B
5.0
0
7.2
NC(GND)
12 3W
12
3W
C642
3.0
5.0
5.5
Y IN(Y/C)
7.2
50V
1
KA
P.CON 5V REG
8.7
Q602
VREG VCC
5.5
KTC3209_Y
P.CON 5V
1.9
REG
CVBS4
5.0
7.2
Q604
R610
5.7
KTC3209_Y
5.5
5.7V VREG OUT
100
C640
3.2
fsc OUT
0.01 F
0
NC
NC
0
FAST YUV
2.8
DELAYDE Y OUT
6dB AMP
6dBAMP
Q605
3.0
Q614
KTC3875S_Y_RTK
EW OUT
7.3
7.9
KTA1504S_Y_RTK
7.8
C608
3.0
7.3
3.8
VIDEO LINE OUT
2.3
16V
47
YK
8.7
1.7
3.8
2.2
8.7 VREG OUT
R613
4.0
VRAMP AGC CAP
390
4.0
V OUT
4.0
VRAMP CAP
1
2
3
R601
3.2
4.0
0
15 1/2W
11.3
7.9
P.CON 8V REG
8.5
Q611
7.9
11.3
KTC3209_Y
P.CON 8V REG
8.5
Q601
KTC3209_Y
R609
100
C601
R619
16V
47
1K
ATTENTION
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.
C
D
E
(MAIN PCB)
R616
8.8
4.9
120 1/2W
AT+5V REG
5.5
R617
KTC3203_Y
100
0
1.2
0
1.9
5.0
1.2
0
1.9
5.6
2.8
0
3.2
0
45
44
43
42
41
40
39
38
37
36
35
34
33
3.6
Y SW OUT
0
NC
NC
5.0
MCU RESET
3.5
MCU CLOCK OUT
NC
5.0
47 NC(GND)
33 V/C GND
P_CON CONT
48 Y IN(YUV)
34 XTAL 3.58
3.5
SCL
3.5
SDA
4.9
CHROMA IC
CLK CONT
NC
IC601
4.2
M61283FP R70T
FAST BLK
2.9
R IN
1 HVCO F/B
15 G OUT
2.9
G IN
2 AFC FILTER
16 B OUT
2.9
B IN
4.6
V PULSE OUT
4.9
INV.FBP OUT
4.9
MONITOR OUT
2.1
ACL
4
10
5
6
7
8
9
11
12
13
14
15
16
0
0
5.5
0
3.8
8.0
8.0
0
8.0
8.0
4.0
4.0
4.0
NC
NC
R654
56K
R635
120K
R636
1.5K
C636
0.0082
B
5.3
1.4
SVM
Q610
KANP
KTC3875S_Y_RTK
0.7
CAUTION
:SINCE THESE PARTS MARKED BY
:LES PIECES REPAREES PAR UN
ETANT
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
Q607
R627
100
R628
100
C637
33P CH
C643
33P CH
C644
33P CH
W805
R629
D608
6.8K
11E1-EIC
R620
R623
100
R626
100 1/4W
100 1/4W
C604
100P CH
0
SVM OFF
R647
0
Q613
4.7K
KTC3875S_Y_RTK
0
ARE
CAUTION: DIGITAL TRANSISTOR
F
G
H
8
7
FROM/TO MICON
PROTECT
SW_Y_OUT
6
AT+5V
RESET
POWER
SCL
SDA
5
OSD_BLK
OSD_R
OSD_G
OSD_B
VD
HD
SYNC_OUT
OSD_Y
4
CLAMP_OFF
TO CRT/SVM
CP802A
CD802
3
B2013H02-7P
CU274201
P.CON+8V
1
GND
2
R.OUT
3
G.OUT
4
B.OUT
5
CLAMP_OFF
6
VM COIL
7
2
PCB010
TMC559
1
H
G-4