Panasonic TX-22LX2 User manual

Power Source
A
C 220-240V, 50/60Hz
Power Consumption
A
verage use: 90W
Standby condition: 1.3W
LCD
Wide XGA (1,280 × 720 pixels)
16 : 9 aspect ratio LCD panel
Screen Size
487.7mm(W) × 274.3mm(H)
Sound
Speaker
12cm × 4cm, 2pcs, 16W
Audio Output
6W (3W + 3W), 10% THD
Headphones
M3 (3.5 mm) Jack x 1
Receiving Systems/ Band name
PAL I
UHF E21 - 68.
PAL 525/60
Playback of NTSC tape from some PAL Video recorders
(VCR).
M.NTSC
Playback from M.NTSC Video recorders (VCR).
NTSC (AV input only)
Playback from NTSC Video recorders (VCR).
Aerial-Rear
© 2004 Matsushita Electric Industrial Co., Ltd. All
rights reserved. Unauthorized copying and
distribution is a violation of law.
TX-22LX2
LH35 Chassis
UHF
Operating Conditions
Temperature: 5°C-35°C
Humidity: 5%-90% RH (non-condensing)
Connection Terminals
AV1 (Scart connecter)
21 Pin terminal (Audio/Video in, Audio/Video out, RGB in,
Q-Link)
AV2 (Scart connecter)
21 Pin terminal (Audio/Video in, Audio/Video out, S-Video
in, Q-Link)
AV3
VIDEO
RCA PIN Type × 1
S-VIDEO
Mini DIN 4-pin
AUDIO L-R
RCA PIN Type × 2
Dimensions (W x H x D)
Including TV Stand
592mm × 503.1mm × 260mm
TV Set Only
592mm × 420mm × 99mm
Weight
10kg Net
Note:
Design and Specifications are subject to change without notice.
Weight and Dimensions shown are approximate.
Wide LCD TV
ORDER NO. PCZ0408011C2

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4SelfCheck
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1.Self-Checkisusedtoautomaticallycheck thebuslinesand hexadecimalcodeoftheTVset.
2.Togetinto theSelf-Checkmodepressthe Down (
)button on thecustomercontrolsatthefrontoftheset,atthesametimepressingthe Recall
button on theremotecontrol,and thescreenwill show:
3.Turnoff theTVto resetJPEGViewercircuit afterSELF-CHECK.
IftheCCUportshavebeencheckedand found tobeincorrectornotlocatedthen “--”willappearin
placeof“O.K.”.
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DisplayRef.No.Description P.C.B.
MEMIC1107EEPROMDG-Board
GC3FMIC4017Global CoreMAINDG-Board
GC3IIC4003Global CoreDG-Board
HADIC4001SCARTRGBA/DConverterDG-Board
HAD2IC4002 OSDRGBA/DConverterDG-Board
AVSW1 IC3001 AVSelectorA-Board
Tun1 TU101TunerB-Board
MSPIC2501 StereoDecoderA-Board

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8.1HowtoenterSERVICE1
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1.Inmain menu, movetochoosesound menu,setBASS toMAXIMUM,and setTREBLEto
MINIMUM.
2.Simultaneouslypress INDEX button on remotecontroland DOWN button [
]on theTVset.
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8.2HowtoenterSERVICE2
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1.SelecttheTEXTClampLevel(service1).
2.SetthechanneltoCH99.
3.PressHOLDbutton on remotecontrol.
Note:
Toexit to Servicemode,pressNorPowerbutton on remotecontrol.

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8.3OptionDescription
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9.1.1RF video
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1.Receivefullcolorbarby RFsignalinput.
(Aspectmode:wide,Viewingmode:standard, LCDAI:OFF)
2.Go to"Auto YGain"underService1and makeautomaticadjustmentofvideosignallevelby
thebluekey.
¡WhenService1appears,presettingtakesplaceautomaticallyasshownbelow.
¡Sharpness:0
¡AI:OFF
¡3D-Combfilter:On
3.PressSTRkeytowritethevalueofadjustmentresultstoEEPROM.
4.Checkthattheautomaticadjustmentofvideosignallevelhascompletednormally.
¡Whentheadjustmentiscompletednormally, the"AutoYGain"colorturnsblack.
Note:
Intheadjustmentmode,theM2MCUchangesautomaticallytothemodeshownintheleft.
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InstrumentNameConnect toRemarks
Remote controller
Internalsignal(studiocolor bar)
RFinput

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9.2WBAdjustment
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lBasicallyperformcheckingusingtheproduction softwareand makeautomaticadjustment
usingexternalcomputer.
lLetthepanelstand formorethan3hoursatmorethan 20°C.
lBasicallyperformassembletocompletion intheambientenvironmentofroomtemperature
morethan20°C.
lTheagingtimeismorethan20 minataboveroomtemperature.
1.EnterintoWBadjustmentintheplantadjustmentmodeand measuretheWHITEbrightness
datatocheckthatit ishigherthan400 cd/m2
(When it isbelow400 cd/m2, makere-measurementin30 minutesaftercold-on.)
2.FortheExcelcalculation sheet,use"LX1series,calculation software".
3.Usingthejig, measurethebrightnessand chromaticitycoordinatesofsinglecolors,white,red,
greenand blue,atthemaximumbrightness(usingbasicdata)and calculatethegammadata
correctedatthemaximumbrightnessusingExcelcalculationsheeton theexternalcomputer.
4.Writethevaluescalculatedin 3 aboveinthegammadatapartinEEPROM.
EEPROMAdr:
0C58h-0C5Bh, 0C5Ch-C5Fh...R(colortemperatureNormal)
0C08h-0C0Bh, 0C0Ch-0C0Fh...G(colortemperatureNormal)
0C30h-0C33h,0C34h-0C37h ...B(colortemperatureNormal)
5.Reflectthedatain4aboveand selectgrayand measurethebrightnessand chromaticity
coordinateatthattimeand calculatethegammadata(colortemperature,normal)and cooland
warmcolortemperatures,correctedathalf-tone,usingtheexternalcomputer.
6.Writethevaluescalculatedin 5 aboveinthegammadatapartinEEPROM.
EEPROMAdr:
0C58h-0C5Bh, 0C5Ch-0C5Fh...R(colortemperatureNormal)
0C08h-0C0Bh, 0C0Ch-0C0Fh...G(colortemperatureNormal)
InstrumentNameConnect toRemarks
1.Remotecontroller
2.LCDWBmeter(Minolta CS-1000equivalent)
3. Communication jig
4. Computerfor external control
Correlation canbealsotakenby CA-110 orequivalent

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0C30h-0C33h,0C34h-0C37h ...B(colortemperatureNormal)
0C50h-0C53h,0C54h-0C57h ...R(colortemperatureWarm)
0C00h-0C03h,0C04h-0C07h ...G(colortemperatureWarm)
0C28h-0C2Bh, 0C2Ch-0C2Fh...B(colortemperatureWarm)
0C60h-0C63h,0C64h-0C67h ...R(colortemperatureCool)
0C10h-0C13h,0C14h-0C17h ...G(colortemperatureCool)
0C38h-0C3Bh, 0C3Ch-0C3Fh...B(colortemperatureCool)
7.Reflectthedatain6aboveand CHECKthatthechromaticitycoordinatesatcheck and GRAY,
arewithinthevaluesgivenbelow.
CHECK:x=0.264±0.005 y=0.269 ±0.005
GRAY:x=0.268 ±0.005 y=0.267 ±0.005
¡WhenwritingdataintoEEPROM,makethisprocedureaftersendingtheWP(write
protect)cancellationcommand (70 8800).
Also,WP(writeprotect)settingcommand is70 88 FF.
8.EEPROMDATAsavingplaceforWB(gammadata)backup
<Housingaddress><Writingaddress>
0C18h-0C1Bh →0C08h -0C0Bh
0C1Ch-0C1Fh →0C0Ch -0C0Fh
0C40h-0C43h →0C30h-0C33h
0C44h-0C47h →0C34h-0C37h
0C68h-0C6Bh →0C58h -0C5Bh
0C6Ch-0C6Fh →0C5Ch -0C5Fh
Note:
Aftercompletionofadjustment,recordthecompletion timeifit took morethan35 minutesafter
aging.
LCDpanelsthatdo notfit intotheabovecheck specification shall bediscussedseparately.
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11 Block and Schematic Diagrams
11.1. Schematic DiagramNotes
TX-22LX2
31

11 Block and Schematic Diagrams
11.1. Schematic DiagramNotes
TX-22LX2
31

11.2. Main Block Diagram
RF in
SIF L/R
STB5V/REG5V
INTERTER15V
UNREG32V
AC IN
220-240V 50/60Hz
INV_VCC
L/R
V/R/G/B
cont
A
D
TV_V
PANEL VCC
STB5V,MAIN5V
STB3.3V,MAIN3.3V
MAIN1.8V,MAIN9V
V/Y
R/G/B
UNIT
Text/OSD
SP
Left
SP
Right
Amp.
Audio
processor
Sound
IC2501
IC2100
A
Tuner
TU101
B
IC3001
SW
AV
P
LCD Panel
(W-XGA)
64M
SDRAM
IC4022
SDRAM
64M
IC4023
GC3FM
IC4017
RGB AD
IC4002
DG
IC4003
GC3I
IC4025
LVDS
Driver
RGB AD
IC4001
EEPROM
IC1107
IC1104
MCU
FLASH
16M
IC1115
SDRAM
64M
IC1114
K
Power SW
Key SW
Main
Headphones
LED Remote
Control
V
AV1
SCART
SCART
AV2
L,R
V
Amp.
HP
IC2200
S-VIDEO
AV3/S
TX-22LX2
Main Block Diagram TX-22LX2 Main Block Diagram
TX-22LX2
32

11.2. Main Block Diagram
RF in
SIF L/R
STB5V/REG5V
INTERTER15V
UNREG32V
AC IN
220-240V 50/60Hz
INV_VCC
L/R
V/R/G/B
cont
A
D
TV_V
PANEL VCC
STB5V,MAIN5V
STB3.3V,MAIN3.3V
MAIN1.8V,MAIN9V
V/Y
R/G/B
UNIT
Text/OSD
SP
Left
SP
Right
Amp.
Audio
processor
Sound
IC2501
IC2100
A
Tuner
TU101
B
IC3001
SW
AV
P
LCD Panel
(W-XGA)
64M
SDRAM
IC4022
SDRAM
64M
IC4023
GC3FM
IC4017
RGB AD
IC4002
DG
IC4003
GC3I
IC4025
LVDS
Driver
RGB AD
IC4001
EEPROM
IC1107
IC1104
MCU
FLASH
16M
IC1115
SDRAM
64M
IC1114
K
Power SW
Key SW
Main
Headphones
LED Remote
Control
V
AV1
SCART
SCART
AV2
L,R
V
Amp.
HP
IC2200
S-VIDEO
AV3/S
TX-22LX2
Main Block Diagram TX-22LX2 Main Block Diagram
TX-22LX2
32

11.3. Power Block Diagram
LED
D205
PANEL VCC
MAIN_5V
PANEL VCC
PANEL VCC
PANEL VCC
MAIN POW
OVP
PANEL HS
AI_PWM
INVPOW
PWM
LED
PANEL VCC
PANEL VCC
MAIN_5V
STB_5V
MAIN_3.3V
STB_3.3V
MAIN_3.3V
MAIN_1.8V
MAIN_9V
MAIN_1.8V
47
42
48
49
44
2
3
DG1
14
38
16
37
17
40
19
34
11
35
13
32
31
28
29
27
24
23
25
19
4
6
7
9
A1
1
5
VCC
SAD2
STB3.3V
24
VCC
14
VCC
Q_LINK SW
IC1105
IC4001
59
VDD
VDD
2
VDD
VDD
82
VDD
VDD
OE
21
61
VDD
11
85
VDD
VDD
OSD RGB A/D
68
72
53
90
VDD
XTST
XSM
92
89
35
AVDAD4
105
AVDAD1
AVDAD2
AVDAD3
116
49
AD 3.3V
CONT
4
IC4004
IN
1
OUT
5
4
AD 3.3V
1
5
IC4005
IN
OUT
CONT
35
AVDAD4
105
AVDAD1
AVDAD2
AVDAD3
116
49
XTST
68
VDD
72
11
VDD
53
59
OE
VDD
XSM
90
2
89
82
61
92
VDD
VDD
VDD
VDD
VDD
VDD
VDD
21
85
SCART RGB A/D
VDD
5
IC4024
IC1109
IC9000
IC4002
D6
D11
D12
H4
M4
N4
W4
V4
AC5
AC6
AC7
AC11
AC12
AC13
Y4
D22
F23
G23
J23
K23
L23
P23
R23
T23
V23
W23
AB23
AC17
AC18
AC19
AC23
H5
AB12
V5
AB13
E22
H22
E8
J22
M22
N22
T22
U22
G5
AB16
AB17
AB21
AB22
U5
E7
AB6
M5
AB7
D21
AE14
C18
D18
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
LCDMODE
PLL3_AVD
PLL2_AVD1
PLL2-AVD2
GC3I
IC4003 IC4020
AVR 1.8V
IC4021
PLL 3.3V
IC4030
MAIN 2.5V
IC4012
AD 2.5V
IC4011
PLL 2.5V
4
5
1
4
5
1
4
5
1
4
5
1
4
5
1
VIN
CONT
VO
VIN
CONT
VO
VIN
CONT
VO
VIN
CONT
VO
VIN
CONT
VO
113
VDDE
1
32
VDDE
23
105
VDDE
90
VDDE
VDDE
VDDE
VDDE
12
VDDE
VDDE
134
AVDDA2
AVDDA1
VDDI
30
VDDI
71
114
21
VDDI
VDDI
88
66
VDDI
VDDI
VDDI
123
75
10
VDDI
135
45
AVDAD31
52
40
58
47
VAVDCLP
54
38
84
AVDPL1
AVDPL2
79
GC3FM
IC4017
73
AVDAD32
AVDAD21
AVDAD22
AVDAD11
AVDAD12
MAIN 5V
41
43
3
15
29
VCC
81
1
75
49
35
VCC
VCCQ
VCC
VCC
9
55
VCCQ
VCCQ
VCCQ
VCCQ
VCCQ
VCCQ
VCCQ
IC4022
64Mbit SDRAM
VCC
VCCQ
41
VCCQ
VCCQ
29
VCCQ
64Mbit SDRAM
3
VCC
9
VCC
VCCQ
VCCQ
81
15
VCCQ
1
55
75
49
35
VCCQ
IC4023
VCC
43
1
34
26
VCC
VDS_VCC
RS
44
9
LVDS
IC4025
VCC
PLL_VCC
MAIN 3.3V
STB3.3V
IC1107
EEPROM
VCC
8
IC1108
RESET
VDD
2
42
14
VDD33-1
106
69
85
61
32
53
VDD25-1
123
119
111
87
21
116
93
80
MCU
IC1104
VIN
CONT
VO
1
23
IC9001
STB 2.5V
5
INVERTER
IC1111
VCC
VDD33-2
VDD33-3
VDD33-4
VDD33-5
VDD33-6
VDD33-7
VDD33-8
VDD25-2
VDDA-1
VDDA-2
VDDA-3
VDDD-4
16Mbit FLASH
IC1115
VCC
47
37
SYTE
VCC
IC1114
64Mbit SDRAM
IC1113
DG-BOARD
VCC
31
32
VCC
IC3001
IN
1
IC803
3
AVR 8V
OUT
49
31
STANDBYQ
10
AHVSUP
63
AVSUP
DVSUP
MSP
IC2501
HP AMP
IC2200
SP AMP
IC2100
1
9
7
A8
5
9
7
B1
513
7
9
B-BOARD
5V
30V
5V
V SUPPLY
BTL
BV
TU101
TUNER
9
14
27
49
43
1
3
14
OR GATE
D23
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
SERIAL DATA BUFFER
VCC
SOS
LED R
TO A1
TO DG1
4
VCC
8
IC4101
8
VCC
OP AMP
IC4029
45
PANEL 5V
81
91
INV ON
MAIN ON
V-BOARD
A5
4
V1
5
STBY 3.3V
LED R
5
4
Q201
VDD
VDDQ
VDDQ
VDD
VDD
VDDQ
VDDQ
P/SW
6
VCC
1
MSP 5V
VIN
VO
1
IC806
3
IC807
31
VO
TNR 5V
VIN
IC804
21
VOUT
MAIN 3.3V
VIN
5
ON/OFF
12
VOUT
ON/OFF
VIN
5
IC801
12
SW OUT
ON/OFF
MAIN 12V
VIN
5
MAIN 9V
ON/OFF
5
VIN
2
IC802
SW OUT
1
Q801 Q800
Q808 Q807
LCD BL0
A24
LCD BL2
AA4 W24
HSOE
Q4094,Q4095 Q4089,Q4088
IC4014
123
+-
657
Q4077
Q4081
20
22
26
27
28
32
23
24
5
6
13
A3
2
3
21
22
23
24
10
20
STB_5V
REG_5V
REG_5V
REG_5V
REG_5V
UNREG_32V
POWER ON
INVERTER_15V
INVERTER_15V
INVERTER_15V
INVERTER_15V
INVERTER_15V
4
5
6
7
A10
1
2
16
17
18
8
4
INV_VCC
INV_VCC
INV_VCC
INV_VCC
INV_VCC
INV_VCC
INV_ON
INV_VCC
PANEL HS
DUTY PWM
AI PWM
3
Q803
Q802
A-BOARD
MAIN_9V
MAIN_9V
MAIN_5V
MAIN_5V
STB_5V
MAIN_3.3V
STB_3.3V
MAIN_3.3V
MAIN_1.8V
MAIN_9V
MAIN_1.8V
INV ON
MAIN POW
OVP
PANEL HS
AI_PWM
PWM
LED
MAIN 1.8V
IC805
STAND BY
POWER
UNIT
SUPPLY
BACK LIGHT
INVERTER
(LCD PANEL)
MAIN POW
INV ON
DUTY PWM
AI PUM
PANEL HS
PANEL HS
AI PWM
INV ON
DUTY PWM
LED
MAIN POW
LED
INV_POW
MAIN POW
OVP
MAIN 3.3V
MAIN 5V
INV_POW
OVP
LED
MAIN POW
AV SELECTOR
CLOCK
BUFFER
OP AMP
TX-22LX2
Power Block Diagram TX-22LX2
Power Block Diagram
TX-22LX2
33

11.3. Power Block Diagram
LED
D205
PANEL VCC
MAIN_5V
PANEL VCC
PANEL VCC
PANEL VCC
MAIN POW
OVP
PANEL HS
AI_PWM
INVPOW
PWM
LED
PANEL VCC
PANEL VCC
MAIN_5V
STB_5V
MAIN_3.3V
STB_3.3V
MAIN_3.3V
MAIN_1.8V
MAIN_9V
MAIN_1.8V
47
42
48
49
44
2
3
DG1
14
38
16
37
17
40
19
34
11
35
13
32
31
28
29
27
24
23
25
19
4
6
7
9
A1
1
5
VCC
SAD2
STB3.3V
24
VCC
14
VCC
Q_LINK SW
IC1105
IC4001
59
VDD
VDD
2
VDD
VDD
82
VDD
VDD
OE
21
61
VDD
11
85
VDD
VDD
OSD RGB A/D
68
72
53
90
VDD
XTST
XSM
92
89
35
AVDAD4
105
AVDAD1
AVDAD2
AVDAD3
116
49
AD 3.3V
CONT
4
IC4004
IN
1
OUT
5
4
AD 3.3V
1
5
IC4005
IN
OUT
CONT
35
AVDAD4
105
AVDAD1
AVDAD2
AVDAD3
116
49
XTST
68
VDD
72
11
VDD
53
59
OE
VDD
XSM
90
2
89
82
61
92
VDD
VDD
VDD
VDD
VDD
VDD
VDD
21
85
SCART RGB A/D
VDD
5
IC4024
IC1109
IC9000
IC4002
D6
D11
D12
H4
M4
N4
W4
V4
AC5
AC6
AC7
AC11
AC12
AC13
Y4
D22
F23
G23
J23
K23
L23
P23
R23
T23
V23
W23
AB23
AC17
AC18
AC19
AC23
H5
AB12
V5
AB13
E22
H22
E8
J22
M22
N22
T22
U22
G5
AB16
AB17
AB21
AB22
U5
E7
AB6
M5
AB7
D21
AE14
C18
D18
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
LCDMODE
PLL3_AVD
PLL2_AVD1
PLL2-AVD2
GC3I
IC4003 IC4020
AVR 1.8V
IC4021
PLL 3.3V
IC4030
MAIN 2.5V
IC4012
AD 2.5V
IC4011
PLL 2.5V
4
5
1
4
5
1
4
5
1
4
5
1
4
5
1
VIN
CONT
VO
VIN
CONT
VO
VIN
CONT
VO
VIN
CONT
VO
VIN
CONT
VO
113
VDDE
1
32
VDDE
23
105
VDDE
90
VDDE
VDDE
VDDE
VDDE
12
VDDE
VDDE
134
AVDDA2
AVDDA1
VDDI
30
VDDI
71
114
21
VDDI
VDDI
88
66
VDDI
VDDI
VDDI
123
75
10
VDDI
135
45
AVDAD31
52
40
58
47
VAVDCLP
54
38
84
AVDPL1
AVDPL2
79
GC3FM
IC4017
73
AVDAD32
AVDAD21
AVDAD22
AVDAD11
AVDAD12
MAIN 5V
41
43
3
15
29
VCC
81
1
75
49
35
VCC
VCCQ
VCC
VCC
9
55
VCCQ
VCCQ
VCCQ
VCCQ
VCCQ
VCCQ
VCCQ
IC4022
64Mbit SDRAM
VCC
VCCQ
41
VCCQ
VCCQ
29
VCCQ
64Mbit SDRAM
3
VCC
9
VCC
VCCQ
VCCQ
81
15
VCCQ
1
55
75
49
35
VCCQ
IC4023
VCC
43
1
34
26
VCC
VDS_VCC
RS
44
9
LVDS
IC4025
VCC
PLL_VCC
MAIN 3.3V
STB3.3V
IC1107
EEPROM
VCC
8
IC1108
RESET
VDD
2
42
14
VDD33-1
106
69
85
61
32
53
VDD25-1
123
119
111
87
21
116
93
80
MCU
IC1104
VIN
CONT
VO
1
23
IC9001
STB 2.5V
5
INVERTER
IC1111
VCC
VDD33-2
VDD33-3
VDD33-4
VDD33-5
VDD33-6
VDD33-7
VDD33-8
VDD25-2
VDDA-1
VDDA-2
VDDA-3
VDDD-4
16Mbit FLASH
IC1115
VCC
47
37
SYTE
VCC
IC1114
64Mbit SDRAM
IC1113
DG-BOARD
VCC
31
32
VCC
IC3001
IN
1
IC803
3
AVR 8V
OUT
49
31
STANDBYQ
10
AHVSUP
63
AVSUP
DVSUP
MSP
IC2501
HP AMP
IC2200
SP AMP
IC2100
1
9
7
A8
5
9
7
B1
513
7
9
B-BOARD
5V
30V
5V
V SUPPLY
BTL
BV
TU101
TUNER
9
14
27
49
43
1
3
14
OR GATE
D23
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
SERIAL DATA BUFFER
VCC
SOS
LED R
TO A1
TO DG1
4
VCC
8
IC4101
8
VCC
OP AMP
IC4029
45
PANEL 5V
81
91
INV ON
MAIN ON
V-BOARD
A5
4
V1
5
STBY 3.3V
LED R
5
4
Q201
VDD
VDDQ
VDDQ
VDD
VDD
VDDQ
VDDQ
P/SW
6
VCC
1
MSP 5V
VIN
VO
1
IC806
3
IC807
31
VO
TNR 5V
VIN
IC804
21
VOUT
MAIN 3.3V
VIN
5
ON/OFF
12
VOUT
ON/OFF
VIN
5
IC801
12
SW OUT
ON/OFF
MAIN 12V
VIN
5
MAIN 9V
ON/OFF
5
VIN
2
IC802
SW OUT
1
Q801 Q800
Q808 Q807
LCD BL0
A24
LCD BL2
AA4 W24
HSOE
Q4094,Q4095 Q4089,Q4088
IC4014
123
+-
657
Q4077
Q4081
20
22
26
27
28
32
23
24
5
6
13
A3
2
3
21
22
23
24
10
20
STB_5V
REG_5V
REG_5V
REG_5V
REG_5V
UNREG_32V
POWER ON
INVERTER_15V
INVERTER_15V
INVERTER_15V
INVERTER_15V
INVERTER_15V
4
5
6
7
A10
1
2
16
17
18
8
4
INV_VCC
INV_VCC
INV_VCC
INV_VCC
INV_VCC
INV_VCC
INV_ON
INV_VCC
PANEL HS
DUTY PWM
AI PWM
3
Q803
Q802
A-BOARD
MAIN_9V
MAIN_9V
MAIN_5V
MAIN_5V
STB_5V
MAIN_3.3V
STB_3.3V
MAIN_3.3V
MAIN_1.8V
MAIN_9V
MAIN_1.8V
INV ON
MAIN POW
OVP
PANEL HS
AI_PWM
PWM
LED
MAIN 1.8V
IC805
STAND BY
POWER
UNIT
SUPPLY
BACK LIGHT
INVERTER
(LCD PANEL)
MAIN POW
INV ON
DUTY PWM
AI PUM
PANEL HS
PANEL HS
AI PWM
INV ON
DUTY PWM
LED
MAIN POW
LED
INV_POW
MAIN POW
OVP
MAIN 3.3V
MAIN 5V
INV_POW
OVP
LED
MAIN POW
AV SELECTOR
CLOCK
BUFFER
OP AMP
TX-22LX2
Power Block Diagram TX-22LX2
Power Block Diagram
TX-22LX2
33

11.4. Signal Block Diagram
C
L
V
Y
R
AV1-FB
BLUE
RED
GREEN
AV2_QLINK
MON-V
LIN
CPB
VY
SCL1
SP-LCH
SP-RCH
HP-RCH
SIF
AM
TV-LOUT
MON-L
TV-VOUT
SDA1
AV1-QLINK
RIN
LIN
TV-ROUT
AV-L
TV-VOUT
RIN
AFC
LIN
RIN
MON-R
SIF
AM
HP-LCH
AV-R
TV1_L
TV1_R
MON-V
AV-L
AV-R
MON-L
MON_R
TV-VOUT
TV-ROUT
TV-LOUT
LED_OFF
JK3001
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
JK3002
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
JK3003
SW310
AV1-R
4
AV SELECTOR
IC3001
47
AV1-L
45
AV1-V
2
1
TV/AV +/UP -/DOWN STRF
K-BOARD
SW301 SW302 SW303 SW304 SW305
44
BLUE
VOUT
VIN
SLOW
LIN
FB
GREEN
LOUT
AV1 SCART
RED
Q_LINK
RIN
ROUT
RIN
ROUT
SLOW
LIN
RED/S_C
LOUT
VIDEO IN/S_Y
VOUT
QLINK
AV1-SLOW
6
8
10
12
9
11
13
15
17
AV3S-C
19
AV2-SLOW
AV2-R
AV3S-Y
AV3
AV3-S
AV3-V
AV2-L
AV2-C
AV2-Y
AV2-V
SCL
SDA
33
34
52
LOUT1
54
ROUT1
53
VOUT1
43
LOUT2
V/YOUT2
COUT2
ROUT2
45
44
54
MSP
IC2501
ANA IN
MONO IN
SC1 IN R
SC1 IN L
47
RESETQ
16
SC1-OUT R
29
SC1-OUT L
28
DACM R
21
DACM L
20
DACA R
18
DACA L
17
12CCL
2
12CDA
1
3
K1
1
4
AV2 SCART
A-BOARD
50
TV-L
A6
1
3
4
KEYSCAN
KEYSCAN
LED OFF
SDA1
SCL1
1
2
4
6
7
3
XTAL IN
AV1
SCART
AV3-L
16
AV3-R
18
TV-V
30
TV-L
29
TV_R
31
LOUT3
38
ROUT3
40
VOUT3
41
TV
55
XTAL OUT
AV3/S
Q3008
MUTE
MUTE
Q3005
AMP
Q3001
MUTE
Q3003
MUTE
Q3009
MUTE
Q3010
AMP
Q3002
MUTE
Q3004
Q3006
Q3007
Q2102,Q2103
12
SDA
7
TU101
9
12
SDA1
SCL1
AM
TV_V
A9
7
11
3
SCL1
3
SDA1
AFC
18
SIF
20
21
22
9
SCL
AM
RF AGC
AFC
B-BOARD
4
B2
5
MSP
14
B1
16
11
17
TUNER
VIDEO
A8
AFC OUT
22
1
2
K2
BROWN
BLUE
2
K3
BLUE
1
BROWN
Q2502
MUTE
Q2501
MUTE
5
Q2507
POWER OFF-MUTE
AV2
SCART
TV-R
8
COLD HOT
111
2224
3
TX-22LX2
Signal Block Diagram TX-22LX2
Signal Block Diagram
TX-22LX2
34

11.4. Signal Block Diagram
C
L
V
Y
R
AV1-FB
BLUE
RED
GREEN
AV2_QLINK
MON-V
LIN
CPB
VY
SCL1
SP-LCH
SP-RCH
HP-RCH
SIF
AM
TV-LOUT
MON-L
TV-VOUT
SDA1
AV1-QLINK
RIN
LIN
TV-ROUT
AV-L
TV-VOUT
RIN
AFC
LIN
RIN
MON-R
SIF
AM
HP-LCH
AV-R
TV1_L
TV1_R
MON-V
AV-L
AV-R
MON-L
MON_R
TV-VOUT
TV-ROUT
TV-LOUT
LED_OFF
JK3001
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
JK3002
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
JK3003
SW310
AV1-R
4
AV SELECTOR
IC3001
47
AV1-L
45
AV1-V
2
1
TV/AV +/UP -/DOWN STRF
K-BOARD
SW301 SW302 SW303 SW304 SW305
44
BLUE
VOUT
VIN
SLOW
LIN
FB
GREEN
LOUT
AV1 SCART
RED
Q_LINK
RIN
ROUT
RIN
ROUT
SLOW
LIN
RED/S_C
LOUT
VIDEO IN/S_Y
VOUT
QLINK
AV1-SLOW
6
8
10
12
9
11
13
15
17
AV3S-C
19
AV2-SLOW
AV2-R
AV3S-Y
AV3
AV3-S
AV3-V
AV2-L
AV2-C
AV2-Y
AV2-V
SCL
SDA
33
34
52
LOUT1
54
ROUT1
53
VOUT1
43
LOUT2
V/YOUT2
COUT2
ROUT2
45
44
54
MSP
IC2501
ANA IN
MONO IN
SC1 IN R
SC1 IN L
47
RESETQ
16
SC1-OUT R
29
SC1-OUT L
28
DACM R
21
DACM L
20
DACA R
18
DACA L
17
12CCL
2
12CDA
1
3
K1
1
4
AV2 SCART
A-BOARD
50
TV-L
A6
1
3
4
KEYSCAN
KEYSCAN
LED OFF
SDA1
SCL1
1
2
4
6
7
3
XTAL IN
AV1
SCART
AV3-L
16
AV3-R
18
TV-V
30
TV-L
29
TV_R
31
LOUT3
38
ROUT3
40
VOUT3
41
TV
55
XTAL OUT
AV3/S
Q3008
MUTE
MUTE
Q3005
AMP
Q3001
MUTE
Q3003
MUTE
Q3009
MUTE
Q3010
AMP
Q3002
MUTE
Q3004
Q3006
Q3007
Q2102,Q2103
12
SDA
7
TU101
9
12
SDA1
SCL1
AM
TV_V
A9
7
11
3
SCL1
3
SDA1
AFC
18
SIF
20
21
22
9
SCL
AM
RF AGC
AFC
B-BOARD
4
B2
5
MSP
14
B1
16
11
17
TUNER
VIDEO
A8
AFC OUT
22
1
2
K2
BROWN
BLUE
2
K3
BLUE
1
BROWN
Q2502
MUTE
Q2501
MUTE
5
Q2507
POWER OFF-MUTE
AV2
SCART
TV-R
8
COLD HOT
111
2224
3
TX-22LX2
Signal Block Diagram TX-22LX2
Signal Block Diagram
TX-22LX2
34

AFC
R-
L-
LOUT-
L+
LOUT+
R+
ROUT-
REMOTE
LED_R
MUTE
RES_Q
AFC
C/PB
Y/V
KEY_SCAN
Q_LINK_IN
Q_LINK_OUT Q_LINK_SEL
C/PB
SP-RCH
SP-LCH
ROUT+
HP-LCH
HP-RCH
HP_RCH
HP_LCH
HP_RCH
HP_LCH
BLUE
GREEN
RED
AV1_FB
AV1_QLINK
AV2_QLINK
V/Y
C/PB
Y/V
JK201
D205
RM201
1
2
3
D2008
D2003
45
A1
31
47
32
29
39
38
43
42
41
R+
R-
L+
L-
6
4
12
2
8
910
4
9
7
2
10
SP AMP
IC2100
IC2200
HP AMP
IN1
Q2010
Q2006
Q2009
4
2
1
7
REMOTE
LED
KEY SCAN
Y/V
C/PB
SDA1
SCL1
MUTE
RES_Q
AFC
QLINK(AV2)
QLINK(AV1)
SPEAKER
R
SPEAKER
L
6
DG1
20
4
19
22
12
13
8
9
10
3
1
SCL1(5V)
SDA1(5V)
YSOUT0
100
93
YSOUT6
3
4
1
2
5
13
Q1110
Q1114
IC1105
Q-LINK SW
Q1108
Q1109 Q1105,Q1106
44
41
110
108
PRIN
PBIN
YIN
YSIN 54
SDA
55
SCL
IC4002
SCART RGB A/D
Q4050
SDA0(3.3V)
SCL0(3.3V)
21
22
24
25
26
3
OUT1+
Q4046,Q4067,Q4075
Q4045,Q4069,Q4073
Q2100
MUTE
5
IN1
IN2
VOL
IN2
OUT1-
OUT2+
OUT2-
IN2
6
IN1
MUTE
Q2201
Q3019
Q201
V-BOARD
L-CH(HP)
REMOTE
V1
2
4
5
7
LED R
STBY3.3V
REMOTE
RECEIVER
HEADPHONES
STAND BY LED
R-CH(HP)
9
L
R
Q2200
Q2202
IN2
MT/SW
OUT1
IN1
OUT2
Q2007
Q2008
STB5V
A5
7
5
4
2
9
6
3
12
10
A2
1
8
STB3.3V
SDA1(5V)
SCL1(5V)
12
SCART_R
10
Q4024,Q4031,Q4038
SCART B
Q4023,Q4030,Q4037
8
SCART_G
Q4025,Q4032,Q4039
DG2
7
62
+INA
3
-INA
-INB
OUTB
MAIN 9V
58
RSTN
GC3_RST
A-BOARD
8
6
FB
23
Q4091
DG-BOARD
MUTE
MUTE
A7
4
3
2
1
OP AMP
IC4029
TX-22LX2
Signal Block Diagram TX-22LX2
Signal Block Diagram
TX-22LX2
35

AFC
R-
L-
LOUT-
L+
LOUT+
R+
ROUT-
REMOTE
LED_R
MUTE
RES_Q
AFC
C/PB
Y/V
KEY_SCAN
Q_LINK_IN
Q_LINK_OUT Q_LINK_SEL
C/PB
SP-RCH
SP-LCH
ROUT+
HP-LCH
HP-RCH
HP_RCH
HP_LCH
HP_RCH
HP_LCH
BLUE
GREEN
RED
AV1_FB
AV1_QLINK
AV2_QLINK
V/Y
C/PB
Y/V
JK201
D205
RM201
1
2
3
D2008
D2003
45
A1
31
47
32
29
39
38
43
42
41
R+
R-
L+
L-
6
4
12
2
8
910
4
9
7
2
10
SP AMP
IC2100
IC2200
HP AMP
IN1
Q2010
Q2006
Q2009
4
2
1
7
REMOTE
LED
KEY SCAN
Y/V
C/PB
SDA1
SCL1
MUTE
RES_Q
AFC
QLINK(AV2)
QLINK(AV1)
SPEAKER
R
SPEAKER
L
6
DG1
20
4
19
22
12
13
8
9
10
3
1
SCL1(5V)
SDA1(5V)
YSOUT0
100
93
YSOUT6
3
4
1
2
5
13
Q1110
Q1114
IC1105
Q-LINK SW
Q1108
Q1109 Q1105,Q1106
44
41
110
108
PRIN
PBIN
YIN
YSIN 54
SDA
55
SCL
IC4002
SCART RGB A/D
Q4050
SDA0(3.3V)
SCL0(3.3V)
21
22
24
25
26
3
OUT1+
Q4046,Q4067,Q4075
Q4045,Q4069,Q4073
Q2100
MUTE
5
IN1
IN2
VOL
IN2
OUT1-
OUT2+
OUT2-
IN2
6
IN1
MUTE
Q2201
Q3019
Q201
V-BOARD
L-CH(HP)
REMOTE
V1
2
4
5
7
LED R
STBY3.3V
REMOTE
RECEIVER
HEADPHONES
STAND BY LED
R-CH(HP)
9
L
R
Q2200
Q2202
IN2
MT/SW
OUT1
IN1
OUT2
Q2007
Q2008
STB5V
A5
7
5
4
2
9
6
3
12
10
A2
1
8
STB3.3V
SDA1(5V)
SCL1(5V)
12
SCART_R
10
Q4024,Q4031,Q4038
SCART B
Q4023,Q4030,Q4037
8
SCART_G
Q4025,Q4032,Q4039
DG2
7
62
+INA
3
-INA
-INB
OUTB
MAIN 9V
58
RSTN
GC3_RST
A-BOARD
8
6
FB
23
Q4091
DG-BOARD
MUTE
MUTE
A7
4
3
2
1
OP AMP
IC4029
TX-22LX2
Signal Block Diagram TX-22LX2
Signal Block Diagram
TX-22LX2
35