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THOMSON ITC222 Documentation Technique page 5

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BLOCK DIAGRAM - SCHEMA SYNOPTIQUE - BLOCKSCHALTBILD - SCHEMA A BLOCCHI - ESQUEMA DE BLOQUES
SMALL SIGNAL BOARD
SSB
SCART1
FB in
FRONT END
Blue in
Green in
FE222XXX
HDFL
Red/Chr in
IX300
VIDEO PART (I)
Video/Y in
TDA6415C
VDFL
In / Out Multiplex.
Video out
VP222XXX
Y/C Videocomp.
AV1 pin 8
AV link
IV100
IV100
Audio1in_out L/R
VSP9407 (1H part)
VSP9407 (partie 2H)
Y/C, RGB Select.
Picture improv ement
Chroma Decodeur
SCART2
Letter box detect
YUV Convert
FB in
1H to 2H converter
Blue in
IX400
Synchro extrac tion
CXA2151Q
Green in
DA converter
Comp. Input selection
Red/Chr in
synchro extraction
Video/Y in
Video out
IX410
AV2 pin 8
TDA8601T
3
1H Video switch
AV link
IX420
Audio2in_out L/R
74HC123PW
CMOS Monostable
SCART3
IX430
Red/Chr in
71C1G322-2
Video/Y in
1H/2H Detection
9V
8V
Audio3in_out L/R
IX440
74HC4066
20V
Logic Commut.
Reset DMU
Int DMU
H and V synchro
2
I2Cbus1
CMP1
Y in
Pb in
V
Y
Pr in
Comp1 audio in L/R
B
Pb
2
R
Pr
Audio1 in_out L/R
Tuner-FI pan euro
BV231
Audio2 in_out L/R
HP 222XXX
Audio3 in_out L/R
Ycvbs
Comp1audio in_L/R
AUDIO PART
I2C_cl1
NH101
AP 222XXX
I2C_d1
Master
SIF
AM-AF
Antenna
NH201
RF in
Slave
33V
1
1
1
BA101
BA002
BA010=>
=>
BP130
BQ009
PSB
FCB
BOARD
POWER / SCAN BOARD
PSB
POWER SUPPLY PART
FP001
BP401
BP402
BP001
MAINS
U 220V
ITC222
First issue 11 / 03
Point1:
TV : G2 adjust
RP: Safety CRT
R_ PSI
VIDEO PART (II)
Y_UC
(Y 2H out)
G_ PSI
(U 2H out)
VP222XXX
B_ PSI
U_UC
V_UC
(V 2H out)
YUV to RGB Converter
improvement picture
3V3uc
1V8uc
FB osd
HDFL
VDFL
2
IP530
SECURITY SIGNAL PART
3V3
SSP 222XXX
IP531
1V8
Safety #
TP520
5V
TP523
IP510
8V
IP540
9V
9V
9V
6V
8V
8V
10V
20V
3VStby
2
3
IK201 Conv. Processor
CONVERGENCE
IA001 MSP3411G
STV2060
Digital Sound processing
IK200 SAV Memory
SIGNAL
M24c32
IA002 TDA7269
PART
IK211 Conv. Memory
Stereo Power Amplifier
M24C16
CSP
222XXX
IK202/203 OP Amplif.
IA003 MC4558
Specific Rearprojector
TL84CD
Headphone amplif.
IK280/290 Comparators
LM339D
PS_df_on
1
1
1
1
BA401
BK270 (RP specific)
=>BA400
MOD.
SUBWOOFER
16
DP110
15
GND
14
DP130
12
GNDS
DP135
13
19
DP120
5
21
GND
22
DP140
21
GND
DP150
18
+10V
20
PGND
GND
LP070
BV500=>BB001 CRT
1
16
BV001=>BL111
1
POWER
BOARD
EFC
V_guard
VIDEO PART (III)
(DP PART)
V drive +
BB001 =>BV500 SIGNAL BOARD
VP222XXX
V drive -
Beam Prot
1
I_Cut
FW adj
HFB
IV400 TDA9330
G in
(phi 2ref)
HFB
High level output
(phi 2ref)
EHT INFO
Processor
VFB
(V_guard)
SSC_V_Guard
DPC
R in
R_ osd
IV520 / 521
Beam info
LM358 OP ampli
G_ osd
PKS
Safety
B_ osd
EW prot
SVM
FB_ osd
Phi2 ref
HDFL
Breathing
VDFL
EW drive
B in
8V
Tube detec
5V stby
H drive
5V_V
16
6V
21
2
BP501 =>BP150
1
POWER
BOARD
6V
10V
20V
Reset DMU
BP500=>BP005
REMOTE PART
Int DMU
Safety#
1V8St-by
21
POWER
RP222XXX
5V_V
3VStby
BOARD
I2Cbus1
I2Cbus2
(PSB PART)
I2Cbus3
I2Cbus4
IR001 Microprocessor
3VStby
GENCAM
5V stby
IR110 SDRAM Memory
MT48LC
5Vstby
IR130 ROM Memory
Aqr
on
Cvbs txt M
MX26LV
PO
AV link
IR040 Reset Circuit
AV1pin8
Inf pow fail
NCP303
AV2pin8
NVRAM IR006
AVpin8 out
24WC6
Ground
IR006 Bus Expander
TCE2ACU
Master mute #
Audio stby mute
Degauss
Audio Reset
33V
Eco stby#
Cnt1_20V
1
JTAG
25
1
1
7
1
6
BK290
BR001 => BK101
BR007
KEYBOARD
BP130=>BA010
BP005
(SIGNAL BOARD)
BP130
1
1
USYS
5
SCAN PART
1
Beam info
RL007
CL007
TL003
RL008
TL004 / TL005
Line
Driver
H drive
TL010
2SC5717
CRT.BS
+20V
BSVM PREAMPL.
TG001 / TG002
TG004/TG005
V-GND
BSVM OUTPUT
G2 adj
IB03
TDA6111Q
I_Cut
TB161
G in
Emit.
+34dB
BUF.
Folow
V
UVIDEO
IB01
TDA6111Q
I_Cut
TB121
R in
Emit.
BUF.
+34dB
Folow
UVIDEO
V
IB02
TDA6111Q
I_Cut
TB141
B in
Emit.
+34dB
BUF.
Folow
V
UVIDEO
V
IB004
V-GND
BB002
1
BL200
1
21
GNDL
EHT
USYS
LL008
to tube
Breathing
G2
circuit
RL300/305
Focus
RL306
10
RL252
Pwm_pulse
Beam info
Driver
Line
DL251
+UVERT
12
TL003/4/5
(D,~16V)
+UVERT (D,~16V)
GNDL
7
DL231
+UVFB (D,~40..50V)
11
+UVFB
(D,~40..50V)
V-Yoke
9
-UVERT
(~-16V)
DL221
DL201
U Video
9/BL200
6
GNDL
-UVERT
(D,~195V)
+UVERT
Heater high
3
5/BL200
-UVERT
Heater low
4
6/BL200
EW prot
Diode
Modulator
Phi2 ref
H- Flyback
EW-
CL130
DL043 / RL043
Transistor
EW drive
BL035
CL043
TL029
EHT circuit
safety
Hor.Yoke
Phi2
RL009
loop
RL010
circuit
CL010
Phi2 ref
Line driver
Phi2 ref
TL003
USYS
BG003
BSVM-COIL
TG060 / TG070
1
STAGE
BB007
EFC-COIL
1
Rotation
Focus
G2
EHT
G in
R in
B in
G1
CRT GND
TB001
After Glow
Suppression
G2 alignment
FW adj
TL311
TL312
U_VERT
Beam Info
RL301
DPC
Dynamic phase correction
BL111
1
PKS
Peak white
CNT1_20V
limiter circuit
DL301/302/303
EFC
V_GUARD
V drive +
SSC_V_GUARD
V drive -
Beam-Prot
V drive +
+
GNDL
FW adj
-
V drive -
IF001
EHT info
TDA8177F
DPC
Beam-info
EFC
PKS
Earth Field
EW prot
Phi2 ref
Correction
Breathing
EW drive
Tube detect.
H drive
+20V
21

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