THOMSON LCD12B 20LB120S4 Schematic
LCD04W
First issue 06 / 05
BLOCK DIAGRAM - SCHEMA SYNOPTIQUE - BLOCKSCHALTBILD - SCHEMA A BLOCCHI - ESQUEMA DE BLOQUES
2
pin
LCD Panel
Keypad Bo ard
7 pin
(Headphone Jack)
Inverter
7 pin
8 pin
8 pin
12 pin
IR Board
(LED s)
PFC/
DC-DC/
Audio/
Board
2 pin
2 pin
Po we r
50 pin
50 pin
DDC
EEPROM
D-Su b
Audio Line Out
Audio Processo r
MSP3 415G
4 pin
2
pin
Main
20 pin
20 pin
12 pin
Teltex t
SDA5 55X FL
EEPROM
sub- CP U
WT61P 4
60 pin golden finger
Video Decoder
Board
Scaller/
Main-CPU
WT8811
SAA7 154
Board
Connector
Tune r
Video Board
DC 19 V In
SC AR T
S-Vi deo
Composite
Video
L/R Audio
In put
LCD04W
First issue 06 / 05
BLOCK DIAGRAM - SCHEMA SYNOPTIQUE - BLOCKSCHALTBILD - SCHEMA A BLOCCHI - ESQUEMA DE BLOQUES
TV tuner
AV1
(Scart)
AV2
(S-video
&
Composite)
YPrPb/YCr Cb
&
PC
SIF
TV_ L/R
(Scart Out )
74HC4053
Mu x
L
TDA7 266
Audio AMP
R
MSP 3415G
Audio
processor
EarPhone output
Audio Line Out
LCD04W
First issue 06 / 05
BLOCK DIAGRAM - SCHEMA SYNOPTIQUE - BLOCKSCHALTBILD - SCHEMA A BLOCCHI - ESQUEMA DE BLOQUES
Video Block Diagram
LCD panel
PC Board
RGB 888
SDA555XFL
(Tel eT ext
decoder )
Video Board
WT8811
TeleTe xt RG B
TT CVBS
(scala r)
ITU-
656
4:2:2
(8-b its)
SAA7154
(Video Decoder)
AD C
(built -in)
PC, YPr Pb
YCrCb
CVBS
Y/C
MM1234
(Switch)
SCART CV BS
SCART RGB
D-SUB input
(PC, YPrPb,YCrCb)
S-video
CVBS
TV tuner
TV Out
SCART
LCD04W
First issue 06 / 05
AUDIO CHANNEL SCHEMATIC DIAGRAM - SCHEMA DES CIRCUITS AUDIO - SCHALTBILD MEHRKANAL AUDIO - SCHEMA DEI CIRCUITI AUDIO - ESQUEMA DE LOS CIRCUITOS AUDIO
( AUDIO 20” )
CN601
CN602=>
CN602
LCD04W
First issue 06 / 05
KEYBOARD SCHEMATIC DIAGRAM - SCHEMA DES CIRCUITS COMMANDES - SCHALTBILD BEDIENTEIL
SCHEMA DEI CIRCUITI TASTIERA - ESQUEMA DE LOS CIRCUITOS MANDOS
SW 2
13
245
CHANNEL -
SW 4
13
245
VOLUME -
SW 6
13
245
MENU
R1
1K
R3
( 0V)
R5
220
C5
0.1U K
R4
1K
1K
KEY _IN1 KEY _IN0
C4
0.1U K
(0V)
R6
220
R2
1K
(0.9V) (0.9V)
R7
470
R8
470
( 2V) ( 2V)
R9
6.8K
PHON E_ R
PH ON E_ L
MUTE_HP_ JACK
High : Mute (When Jack is pluging)
R12
R13
R14
R10
6.8K
0
0
0
C6
1000P K
50V
SW 1
13
245
POWER
SW 3
13
245
CHANNEL +
SW 5
13
245
VOLUME +
C7
1000P K
50V
C8
1000P K
50V
D1
TZMC5V1
1
1
D4
TZMC5 V1
+5VS1
+5VS1
D2
TZMC5V1
D5
TZMC5 V1
+
D3
TZMC5V1
D6
TZMC5 V1
KEY _IN1
KEY _IN0
PH ON E_ L
PHON E_ R
MUTE_HP_ JAC K
C1
47U
16V
C2
0.1U K
+5VS1
R11
10K
TP 1
TP 2
TP 3
TP 4
TP 5
TP 6
TP 7
J1
G2
7
6
5
4
3
2
1
G1
J2
7
7
6
6
1
1
2
2
4
4
5
5
3
3
LCD04W
First issue 06 / 05
IR RECEIVER SCHEMATIC DIAGRAM - SCHEMA RECEPTEUR INFRAROUGE -SCHALTBILD IR EMPFÄNGER
SCHEMA RICEVITORE IR - ESQUEMA RECEPTOR IR
+5VS1
J2
12
11
10
L1
+5VS
TP8
12
TP9
11
TP 10
10
TP 11
9
9
8
7
6
5
4
3
2
1
TP 12
8
TP 13
7
6
TP 15
5
4
TP 17
3
TP 18
2
TP 19
1
C41000P K
C51000P K
Z2 20
C71000P K
C61000P K
12
+
C2
C1
47U
16V
C81000P K
0.1U K
LED_ STANDBY
LED_PO WERO N
C101000P K
C91000P K
2
1
LED 1
GREEN/RED
IR_INT
KEY_IN1
KEY_IN0
MUTE _HP_JAC K
C111000P K
4
RG
3
PHONE _L
PHO NE_R
R1
R2
LED_ STANDBY
330
LED_PO WERON
330
U1
TSOP 483 3
VOUT1GND2VCC
3
12
C3
+
4.7U
25V
KEY_IN1
KEY_IN0
PHONE _L
PHO NE_R
MUTE _HP_JAC K
+5VS1
R3
330
R4
5.1K
TP1
TP2
TP3
TP4
TP5
TP6
TP7
J1
G2
7
6
5
4
3
2
1
G1
IR_INT
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