Toshiba MD14FN1 Service Manual page 46

A B
8
FROM/TO REGULATOR
DVD_Y
DVD_C
UNREG+12V
P.CON+5V
GND
7
P.CON+9V
SWD_V_OUT
AT5.7VREG
8.5VREG
FROM/TO DEFLECTION
V.OUT
ACL
AFC
H.OUT
6
FROM/TO I/O
SWD_VIDEO
FRONT_VIDEO
W827
SCL
W832
SDA
OSD_Y
5
OSD_B
OSD_G
OSD_R
HD
4
FROM/TO MICON/TUNER
3
HD
POWER_ON_H
SWD_V_OUT
TUNER_VIDEO
PROTECT
OSD_Y
OSD_B
OSD_G
OSD_R
SDA
SCL
SYNC_VIDEO
H_CONTROL
2
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
1 OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
A B
G-17
C
VIF/SIF/CHROMA SCHEMATIC DIAGRAM
C4227
50V 1 KA
CHROMA
IC601
NC NC NC
5.2
LA76319M-MPB-E
48 47 46 45 44
NC
5.2
CLMP
5.2
NC VIDEO
SW
NC
AUDIO
5.2
R630
SW
1K 1/4W 5.2
BUS
3.4
TRAP
3.4
LPF ATT
3.4
NC
5.0
NC
NC
NC REG-SW
NC RST 5V/8V-REG
NC
1 2 3 4 5
NC NC NC 5.0
0 SW
R634
Q602
KTC3875S_Y_RTK
6.0
4.7K
0
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
(AV PCB)
R625
22K
NC NC
C628 50V 0.47 KA
0 5.2 2.5 4.5 3.9
2.5 3.4 5.0 3.0 3.5 2.6
43 42 41 40 39 38 37 36 35 34 33
NC
REG
SW
0
C622
VXD APC1 FSC 2.5 50V 1 KA
CLMP
2.5
TINT
C601
HOR
0 0.1 B
VCO
AF
BPF
YC SN ACC CEMO X-RAY
SW
0
1/256 R619
V/Y CL BS RGB COLOP
1.7 4.7K +-1%
SW SHARP SG MATRIX HOR
CLAMP
C/D
5.9
DC REST CONTRAST
SYNC FBP
BRIGHT SEP AFC1 NC
R616
VER AFC2
OSD 1.0
OSD
SEP
100 1/4W
CONTRAST SW
VER PHASE
2.7
C/D SHIFTER
ORIVE/OUT-OFF
5.2
VER HOR
HOR
OUT
RAMP VCC
CLMP
ABL/ACL
2.4
2.9
3.0
0
6 7 8 9 10 11 12 13 14 15 16
3.4 8.6 NC 7.9 3.7 3.5
6.0 8.6 2.6 NC 2.8 3.5
R608
L601
6.8K
100uH 0305
R605
27K
PLAYBACK LUMINANCE SIGNAL
CAUTION: DIGITAL TRANSISTOR
PLAYBACK COLOR SIGNAL
B.SIGNAL
G.SIGNAL
R.SIGNAL
D E
F G
S002X
28
R622
DVD_Y
1.5K 1/4W
34
R618
AFC
2201/4W 33
H.OUT
C618
0.015 B
C619
R615
50V 1 KA 4.3K
R613
P.CON+9V
SW
100 1/2W
Q601
0
KTC3875S_Y_RTK
H_CONTROL
5.0 5.0
4.4
4.3
9.0 SW
Q605
KRA102SRTK
P.CON+5V
32
V.OUT
P.CON+5V_B
P.CON+9V
8.5VREG
D603
ACL
1N4005-EIC
TUNER_VIDEO
UNREG+12V
AT5.7VREG
27
TO CRT
CP802A (CP802B)
C634
B2013H02-6P
30 29 31
CLAMP
50V 1 KA
GND
G.OUT
R.OUT
B.OUT
CLAMP OFF
TUNER VIDEO SIGNAL
TUNER AUDIO SIGNAL
PLAYBACK VIDEO SIGNAL
F G
H
8
7
6
5
4
3
2
1
2
3
4
5
6
1
PCB250
TMB555
H
G-18