Toshiba 27A33 Service Manual page 22

A B
8
FROM/TO AV
VIDEO_IN2
V_IN[YUV]
VIDEO_IN1
U_IN[YUV]
Y_IN[YUV]
VIDEO_IN3
VIDEO_OUT
7
FROM/TO COMB FILTER
C_V_OUT_SW
P.CON+5V
Y_V_OUT_SW
VIDEO_OUT 7
6 P.CON+8V[A]
FSC_OUT
GND
D611
SB290S
FROM/TO TUNER/STEREO
TUNER_VIDEO
TUNER+5V
5
P.CON+8V[B]
P.CON+5V
TO SOUND
6dB AMP
Q603
KTC3875S_Y_RTK
P.CON+8V[B]
4 FROM POWER
UNREG+12V
GND
FROM/TO DEFLECTION
3
P.CON+5V
P.CON+8V[A]
GND
V_OUT
EW_OUT
H_SYNC
ABCL
2
1 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.
A B
G-3
C
CHROMA SCHEMATIC DIAGRAM
R603
330 1/2W
2.7 0 2.3
48 47 46
P.CON 5V REG
C641
2.2
Q606
C IN(Y/C)
KTC3209_Y
R602 R649 0.1 B
5.0
7.2 0
NC(GND)
12 3W 12 3W
C642
2.3
5.0 5.5
Y IN(Y/C)
7.2
50V 1 KA
P.CON 5V REG
2.8
Q602
VREG VCC
5.5
KTC3209_Y
P.CON 5V
1.9
REG
CVBS4
5.0 7.2
Q604
R656 R610
5.5 KTC3209_Y
5.6
5.7V VREG OUT
100
1K 1/4W
C640
2.9
fsc OUT
0.01 F
0
NC
NC
0
FAST YUV
0
NC DELAYDE Y OUT
6dB AMP
3.9
Q605
EW OUT
KTC3875S_Y_RTK
8.0 7.4
8.0 C608
2.4
2.7
7.4 VIDEO LINE OUT
2.2
6dBAMP
1.6 16V 47 YK
Q614 8.6
2.7
2.1 8.7 VREG OUT
KTA1504S_Y_RTK
3.9
R613 VRAMP AGC CAP
390 3.0
V OUT
8
3.0
VRAMP CAP
1
2 3
R601
P.CON 8V REG 2.9 3.5 0
Q611
15 1/2W
KTC3209_Y
P.CON 8V REG
11.3 7.9
Q601
8.5
KTC3209_Y
7.9
11.3
8.5
R609
100
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
C
D E
(MAIN PCB)
D610
SB290S
R616
8.8 4.9
120 1/2W
5.5
R617
100
12
0 1.1 0 1.9 5.0 1.1 0 1.9 5.6 2.8 0 3.1 0
45 44 43 42 41 40 39 38 37 36 35 34 33
2.3
Y SW OUT
0
NC
NC
4.9
MCU RESET
MCU CLOCK OUT
NC
4.9
47 NC(GND) 33 V/C GND P_CON CONT
48 Y IN(YUV) 34 XTAL 3.58
5.0
SCL
5.0
SDA
CHROMA 12C BUS NTSC 1 CHIP CTV IC
0
IC601
CLK CONT NC
M61283FP
0
FAST BLK
2.8
R IN
1 HVCO F/B 15 G OUT
2.8
G IN
2 AFC FILTER 16 B OUT
2.9
B IN
4.6
V PULSE OUT
0
INV.FBP OUT
11
0
MONITOR OUT
2.4
ACL
4 10
5 6 7 8 9 11 12 13 14 15 16
0 0 0 0 8.0 8.0 8.0 0 8.0 8.0 2.9 2.9 3.1
NC NC
R654
15
56K 9
13 14
R635
120K
R636
S801X
1.5K
10
CAUTION
ATTENTION
:LES PIECES REPAREES PAR UN ETANT
DANGEREUSES AN POINT DE VUE SECURITE
N'UTILISER QUE CELLS DECRITES
DANS LA NOMENCLATURE DES PIECES
D E
F G
AT+5V REG
Q607
KTC3203_Y
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
:SINCE THESE PARTS MARKED BY ARE
CRITICAL FOR SAFETY,USE ONES
DESCRIBED IN PARTS LIST ONLY
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
CLAMP_OFF
4
TO CRT PCB
CP802A
3
B2013H02-7P
P.CON+8V 1
GND(SIGNAL) 2
R.OUT 3
G.OUT 4
B.OUT 5
CLAMP_OFF 6
NC VM COIL 7
2
PCB010
TMC559
R.SIGNAL
G.SIGNAL
1
B.SIGNAL
TUNER VIDEO SIGNAL
H
G-4