SCHEMATIC DIAGRAMS
LCD FLAT TELEVISION
LT-23E31 BUG/BJG
LT-23E31 SUG/SJG
LT-23E75 BJG
LT-23E75 SJG
CD-ROM No. SML200406
COPYRIGHT © 2004 Victor Company of Japan, Limited
No.YA032
2004/6
LT-23E31BUG, LT-23E31BJG, LT-23E75BJG
LT-23E31SUG, LT-23E31SJG, LT-23E75SJG
STANDARD CIRCUIT DIAGRAMS
CONTENTS
USING P.W. BOARD ..................................................................................................................................................................... 2-1
SEMICONDUCTOR ........................................................................................................................................................................ 2-1
BLOCK DIAGRAM ......................................................................................................................................................................... 2-2
CIRCUIT DIAGRAMS ................................................................................................................................................................... 2-3
MAIN PWB CIRCUIT DIAGRAM ........................................................................................................................................................... 2-3
IR SENSOR PWB CIRCUIT DIAGRAM .............................................................................................................................................. 2-25
AV JACK PWB CIRCUIT DIAGRAM ................................................................................................................................................... 2-27
FRONT CONTROL PWB CIRCUIT DIAGRAM ................................................................................................................................... 2-29
TUNER PWB CIRCUIT DIAGRAM ...................................................................................................................................................... 2-31
PATTERN DIAGRAMS ............................................................................................................................................................... 2-33
MAIN PWB PATTERN ......................................................................................................................................................................... 2-33
IR SENEOR PWB PATTERN .............................................................................................................................................................. 2-35
AV JACK PWB PATTERN ................................................................................................................................................................... 2-35
FRONT CONTROL PWB PATTERN ................................................................................................................................................... 2-35
TUNER PWB PATTERN ......................................................................................................................................................................2-35
USING P.W. BOARD
MAIN P.W. BOARD DA-5097627802 (PWB-0640-1)
IR SENSOR P.W. BOARD DA-5097627802 (PWB-0640-2)
AV JACK P.W. BOARD DA-5098800736 (PWB-0641-1)
FRONT CONTROL P.W. BOARD DA-5098800737 (PWB-0641-2)
TUNER P.W. BOARD DA-5098800738 (PWB-0641-3)
SEMICONDUCTOR SHAPES
TRANSISTOR
BOTTOM VIEW
E
C
B
ECB
(G)(D)(S )
IC
B OT TO M V I EW FR O NT V I EW T OP V I EW
OUT
E
IN
IN OUTE
BCE
FRONT VI EW
1 N
ECB
ECB
1 N
TOP VIEW
CHIP TR
1
C
BE
N
CHIP IC
TOP VIEW
N
N
N
1
N
1
N
(No. YA032) 2-1
BLOCK DIAGRAM
5W+5W
P603
(Speaker)
I008
Audio amp
PWB
(Headphone)
Front Control
P604
P604P602
(TPA1517)
I034
I036
LCD Panel
P008P005
24bit
TP6760
Scaler
Port B(Main )
Inverter PWB
P007 P003
THC63LVDM83A
P002
LVDS I/F
Port V(SUb)
Port A(Main)
PWB
IR Sensor
P601
Micro
(STK6012)
Controller
PROM
2
E
I004
Main PWB
I033
(MSP3415G)
Audio Processor
&
MTS
TV
(Audio)
P012
PT17
Tuner PWB
Scart1,2 Audio
AV,SV Audio
PC Audio
I031
TV
(Video)
I016
I030
FSW
H,V
RGB
P006
8bit
24bit
(SiI504)
De-Interlace
Teletext
(SAA5264)
P001
24bit
I013
(SAA7118)
Video decoder
ADC
(AD9883A-140)
PJ01
24V
5V
12V
Power
24V
3.3V
2.5V
1.8V
Supply
P009
AC
adapter
PWB
AV Jack
EXT-1
(Scart1)
EXT-2
(Scart2)
EXT-3
(AV, SV)
No. YA0322-2
VGA
50/60Hz
110/220V
Power save
23"
(NC)
DC IN
(24V)
Sheet 2,6,9,10
MAIN PWB ASS'Y (1/11)
MAIN PWB CIRCUIT DIAGRAM (1/11)
CIRCUIT DIAGRAMS
No. YA032
2-3 2-4
No. YA032
Sheet 3
Sheet 8
MPU
Sheet 5,7
Sheet 8
Sheet 8
Sheet 8
Sheet 5
Sheet 1,6,9,10
Sheet 3,4,5,6,7,10
Sheet 4
Sheet 7
Sheet 10,11
FRONT CONTROL PWB
P602
IR SENSOR PWB
P601
MAIN PWB ASS'Y (2/11)
MAIN PWB CIRCUIT DIAGRAM (2/11)
No. YA032
2-5 2-6
No. YA032
A/D CONVERTER
Sheet 8
Sheet 8
Sheet 2
MAIN PWB ASS'Y (3/11)
Sheet 8
MAIN PWB CIRCUIT DIAGRAM (3/11)
No. YA032 2-7 2-8
No. YA032
Sheet 6 Sheet 6
Sheet 6
Sheet 6
Sheet 10
Sheet 10
Sheet 6
Sheet 6
Sheet 6
Sheet 6
Sheet 6
Sheet 2
Sheet 6
Sheet 6
Sheet 6
MAIN PWB ASS'Y (4/11)
TUNER PWB PT17
AV JACK PWB
P001
MAIN PWB CIRCUIT DIAGRAM (4/11)
No. YA032
2-9 2-10
No. YA032
Sheet 4
Sheet 6
Sheet 6
Sheet 6
Sheet 6
Sheet 2,3,4,6,7,10
Sheet 2
TELE TEXT
MAIN PWB ASS'Y (5/11)
MAIN PWB CIRCUIT DIAGRAM (5/11)
No. YA032 2-11 2-12
No. YA032
Sheet 2,3,4,5,7,10
Sheet 2
Sheet 5
Sheet 4
Sheet 1,2,9,10
Sheet 4
Sheet 5
VIDEO DECODER
COMB FILTER
Sheet 7,8
Sheet 7,8
MAINPWB ASS'Y (6/11)
MAIN PWB CIRCUIT DIAGRAM (6/11)
No. YA032
2-13 2-14
No. YA032
Sheet 6,8
Sheet 2,3,4,5,6,10
Sheet 8
Sheet 8
DE-INTERLACE
MAIN PWB ASS'Y (7/11)
MAIN PWB CIRCUIT DIAGRAM (7/11)
No. YA032 2-15 2-16
No. YA032
Sheet 7
Sheet 2
Sheet 2
Sheet 2
Sheet 2
Sheet 3
Sheet 6,7
Sheet 3
Sheet 3
Sheet 7
Sheet 3
Sheet 3
Sheet 3
Sheet 7
Sheet 7
MAIN
PC
Sheet 6,7
SCALER
Sheet 9
Sheet 9
Sheet 9
Sheet 9
MAIN PWB ASS'Y (8/11)
MAIN PWB CIRCUIT DIAGRAM (8/11)
No. YA032
2-17 2-18
No. YA032
Sheet 8
Sheet 8
Sheet 8
LVDS DECODER
LCD
PANEL
Sheet 8
MAIN PWB ASS'Y (9/11)
MAIN PWB CIRCUIT DIAGRAM (9/11)
No. YA032 2-19 2-20
No. YA032
Sheet 4
Sheet 4
Sheet 4
Sheet 2,3,4,5,6,7
MTS
Sheet 11
Sheet 4
Sheet 2,11
Sheet 1,2,6,9
MAIN PWB ASS'Y (10/11)
MAIN PWB CIRCUIT DIAGRAM (10/11)
No. YA032
2-21 2-22
No. YA032
Sheet 10
Sheet 2,10
AUDIO AMP
FRONT CONTROL PWB
P604
MAIN PWB ASS'Y (11/11)
MAIN PWB CIRCUIT DIAGRAM (11/11)
No. YA032 2-23 2-24
No. YA032
IR SENSOR PWB ASS'Y
MAIN PWB (2/11)
P003
IR SENSOR PWB CIRCUIT DIAGRAM
No. YA032
2-25 2-26
No. YA032
AV JACK PWB ASS'Y
MAIN PWB (4/11)
P006
AV JACK PWB CIRCUIT DIAGRAM
No. YA032 2-27 2-28
No. YA032
FRONT CONTROL PWB ASS'Y
SPEAKERS
MAIN PWB (11/11)
P005
MAIN PWB (2/11)
P002
FRONT CONTROL PWB CIRCUIT DIAGRAM
No. YA032
2-29 2-30
No. YA032
TUNER PWB ASS'Y
MAIN PWB (4/11)
P012
TUNER PWB CIRCUIT DIAGRAM
No. YA032 2-31 2-32
No. YA032
TOP
()
MAIN PWB PATTERN
PATTERN DIAGRAMS
No. YA032
2-33 2-34
No. YA032
IR SENSOR PWB PATTERN
AV JACK PWB PATTERN
FRONT CONTROL PWB PATTERN
TUNER PWB PATTERN
No. YA032 2-35
Victor Company of Japan, Limited
AV & MULTIMEDIA COMPANY VIDEO DISPLAY CATEGORY 12, 3-chome, Moriya-cho, kanagawa-ku, Yokohama, kanagawa-prefecture, 221-8528, Japan
(No. YA032)
Printed in Japan
WPC
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