Toshiba 19A26C Service Manual page 22

A B
0 0
8
1 2
8 7
4.9 0
C118
6.3V 470 YK
7
C101
0.01 B
AT+5V
SDA
1 CNVSS 41 NC
2 XIN 42 HVCO F/B
SCL
3 XOUT 43 AFC FILTER
4 TEST1 44 DEF GND
5 VSS 45 FBP IN
6
6 MCU VCC 46 H OUT
7 TEST0 47 DEF VCC 22K 1/4W
AFT
8 FILT 48 NC
R112 2.2K 1/4W
9 HLT 49 HI VCC
KEY1
10 VHOLD 50 R OUT R113 2.2K 1/4W
11 CVIN 51 G OUT KEY2
R116_1 2.2K
12 RESET IN 52 B OUT
POWER_ON
13 MCU RESET OUT 53 ACL
R115 22K
14 Y SW OUT 54 NC
REMOCON
15 V/C GND 55 PROTECT
16 3.58 XTAL 56 SDA
17 C-APC 57 H_CTL
5
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 IIC_OFF
23 MCU TEST 63 STANDBY_H
1K
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 TEST 3 76 ON_TIMER AT+5V
37 V RAMP F/B 77 SYNC
38 V RAMP OUT 78 POWER FAIL
39 V RAMP CAP 79 NC
40 8.7V REG OUT 80 EXT_MUTE
3
5.1
0
ON_TIMER
SWITCHING
4.8 Q105
KRA102MAT
R143_1
10
2
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
1
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
A B
G-1
C
MICON/CHROMA/TUNER SCHEMATIC DIAGRAM
(MAIN PCB)
0 0
3 4
6 5
4.9 4.9
R618
22K
S802Y
R110
R109
10K 1/4W
10K 1/4W
R124
10K
R130
10K 1/4W
0 0 0 0 0 4.9 NC
0.3 4.9 0 4.6 2.3 3.2
64 63 62 61 60 59 58 57 56 55 54 53 52
R119 4.9
2.4
MCU GND
4.9
IIC BUS
PGB OUTPUT Stage
DECODER DRIVE
4.9 CUT-OFF
SDA/SCL
ROM HV BLK
OSD
RAM
4.9
4.9
0
I/O
NC
4.9
NC
P-ON CONT Power Manage.
4.9 IIC
MCU RESET
TIM
2.9
CCD
INT
4.9
PWM
0
CLK CONT MCU
AD
CPU core
CLK
0
NC
4.9
VCO
0
R129
XO
47K 4.9
NC
1 2 3 4 5 6 7 8 9 10 11 12 13
1.2
0 0 5.0 5.0 0 4.9 0 2.0 0.8 3.4 4.9
MICON/CHROMA IC
NC
IC101
OEC7091C
C102
0.01 B
R128
560
R126 R101
2.7K 560
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
H.CTL
Q607
R621
4.9 5 2SC2412K
220 1/4W
5.6
3
2
C630
10V 470 YK
C629
0.01 B
5 6 7
NC NC
3.2 3.5 8.0 0 8.0 4.6 4.9 0 3.4 3.7 0
51 50 49 48 47 46 45 44 43 42 41
8.8
4.6
4
Ver.Proc.
4.5
Hor.Proc.
Ver SYNC SEP V_OUT
SYNC SEPA/Hor.VCO
Ver.COUNT DOWN
Hor.COUNT DOWN 2.6
R606
V RAMP V_FEEDBACK
AFC-1/H COINCIDENT
AFC-2 H PHASE 22K 1/4W
0
3.3 C622
50V 1 KA
4.0
AUDIO_OUT
RGB Proc.2
RGB Proc.1
OSD SW 4.6
1
RGB MATRIX
CONTRAST NC
COLOR CONT
BRIGHTNESS
3.1
NC
8.8
Chroma Proc.
Vldeo Proc.
P.CON+5V
2.0
ACC/C-BPF
C-TRAP/YDELAY
NC
APC/KILLER TUNER+5V
SHARPNESS
TINT/DEMO 2.3
BLACK STRETCH
NC
Y MUTE
5.7
R604
LPF
6bB AMP 100 1/4W
ATT 2.3
C614
AUDIO_IN
1 B
2.0 C612
VIDEO_IN
1 B
VCXO 2.2
NC
14 15 16 17 18 19 20 21 22 23 24
5.0 3.4 0 3.4 2.9 5.6 0 2.9 2.8 5.0 0 2.0
NC NC
C615
TU_VIDEO
C609 1 B
D602
0.01 B
C616 MTZJ9.1B
TU_AUDIO
1 B
C610_1
D611
16V 47 YK
MTZJ12B
5V REG
5.5
Q601
R603
4.9 KTC3203_Y
8.8
120 1/2W
CAUTION
:SINCE THESE PARTS MARKED BY
CRITICAL FOR SAFETY,USE ONES
DESCRIBED IN PARTS LIST ONLY
D E
F G
R608
1K 1/4W
C623
50V 2.2 KA
8V REG
R607
Q606
KTC3203_Y
100 1/4W
C621
16V 47 YK
C620_1
0.01 B
D603 D604
1SS133
MTZJ8.2B
R605
220 1/2W
S802X
5V REG
Q602
4.9
KTC3203_Y
5.5
7.2 R629
C617
22 3W
10V 100 YK 7.2
5.5
5V REG
4.9
C001
Q603 1 NC
KTC3203_Y
0.01 F
2 NC
L001
3
3.3uH 0305
4 NC
NC
5
6 NC
7 NC
8 NC
9 NC
R004
10
100
R003
11
100
12
13
14 NC
R002
15
15K 1/2W
16 NC
TU001
115-V-KA35ARH
17
ATTENTION
:LES PIECES REPAREES PAR UN ETANT
ARE
DANGEREUSES AN POINT DE VUE SECURITE
N'UTILISER QUE CELLS DECRITES
DANS LA NOMENCLATURE DES PIECES
F G
H
8
FROM/TO DEFLECTION/CRT
7
CLAMP
P.CON+B
V_OUT
GND
V_FEEDBACK
ABCL
H_OUT
X-RAY
R.OUT
G.OUT
B.OUT
H_SYNC
6
FROM/TO TV POWER
UNREG+12V
POWER_FAIL
UNREG+12V
X-RAY
GND
DEGAUSS_H
AT+5V
5
FROM/TO SOUND/AV
AUDIO_MUTE
VIDEO_IN
AUDIO_IN
AUDIO_OUT
P.CON+5V
GND
4
TUNER+5V
3
TEST POINT
SCL
CP601
A2001WR2-6P
SDA
NC 6
AFT
NC 5
IIC_OFF
IIC_OFF 4
TU_AUDIO
SDA
SDA 3
SCL
SCL 2 2
GND 1
R001
P.CON+B
15K 1/2W
TU_VIDEO
PCB010
CMF081
CAUTION: DIGITAL TRANSISTOR
1
H
G-2