Service Manuals, User Guides, Schematic Diagrams or docs for : LG TV lg_tv_ch_mc022
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ADJUSTMENT INSTRUCTIONS
1. Safety Precautions 5. Screen Voltage & White Balance Adjustment
1. It is safe to adjust after using insulating transformer between
the power supply line and chassis input to prevent the risk of 5-1. Adjustment of screen manually
electric shock and protect the instrument. (Using ADJ.Remote Control)
2. Never disconnect leads while the TV receiver is on.
3. Don't short any portion of circuits while power is on. 1) Receive the PAL or SECAM(NTSC) signal into RF mode
4. The adjustment must be done by the correct appliances. regardless of channel.
5. Unless otherwise noted, set the line voltage to 230Vac!10%, 2) If you press the "ADJ"button in LINE SVC mode(IN-START
50Hz. button),the LINE SVC mode changes to screen adjustment
6. The adjustment of TVshould be performed after warming up mode.
for 15 minutes. 3) Turn the Sreen Volume of FBT to change luminance of
White signal center as shown below.(Deviation ! 1FL)
4) Press the EXIT button (Like TV/AV) to exit SVC mode.
2. Test Equipment required
1. RF signal generator (with pattern generator) CPT & INCH Luminance(Manual) Note
2. DC Power Supply 29" FLAT 6!1FL Single Focus
3. Multimeter (volt meter)
25" FLAT 8!1FL
4. Oscilloscope
5. Color analyzer 29" NORMAL 5!1FL
25" NORMAL 6!1FL
28" NORMAL 8!1FL
3.DVCO Adjustment
1) This is for adjustment of VCT38XX,crystal oscillator 5-2. Adjustment of white balance manually(LIne-SVC 1)
frequency after receiving a company Digital
pattern.(PAL:EU05CH,NTSC:13CH) 1) Tune the TV set to receive an 100% white pattern.
2) When entering adjustment mode by pressing IN-START 2) Adjust LOW LIght status of CUT R,CUT B at CUT G:50.
button,DVCO adjustment is operating automatically. 3) Adjust HIGH LIght status of WDR R,WDR B at WDR G:380.
(T/X doesn't operating occassionally during DVCO 4) Repeat above step 2) and 3) for the best condition each
adjustment.) status of High Light and Low Light.
White Balance Color analyzer
4. Focus Adjustment
Menu EU N-EU
4-1. Preparation for Adjustment X 288 268
Tune the TV set to receive a digital pattern. Y 295 273
Color Temperature 9000oK 13000oK
4-2. Adjustment Method
1) Single Focus CPT White Balance Initial Data
Adjust the upper Focus volume of FBT for the best focus of
horizontal line A,vertical line B. Menu Range DATA
2) Double Focus CPT CUR R 0 ~ 511 50
1) Adjust the lower Focus volume of FBT for the best focus of
CUR G 0 ~ 511 50
vertical line B.
2) Adjust the upper Focus volume of FBT for the best focus of CUR B 0 ~ 511 50
area A. WDR R 0 ~ 511 380
3) Repeat above step 1) and 2) for the best overall focus.
WDR G 0 ~ 511 380
WDR B 0 ~ 511 380
A NOTE : When adjusting white balance automatically,connect the
B
adjustment JIG in SVC mode.(When pressing IN-
START,MUTE button on remote control for adjustment
orderly,it changes to SVC mode and screen displays
SVC.)
Fig. 1 b
- 9 -
6. Deflection Data Adjustment (Line SVC-2)
EW (Horizontal Width)
NOTE : How to enter into the Line Service Mode with a remocon. Adjust to that a digital circle pattern looks like exact circle.
1.Power off.
2.Press the Red button.
3.Press the Green button.
4.Press the Yellow button.
5.Press the Cyan button.
6.Press the OK button.
7.Power On.
6-1. Preparation for Deflection Adjustment
1) At adjustment mode(IN-START button on remote control of
adjustment),changed to LINE SVC 2 mode to adjust the
deflection.
2) Press Channel UP/DOWN button for desirous function Fig. 2
Adjustment.
3) Press Volume UP/DOWN button to adjust the data.
4) Tune the TV set to receive a Digital pattern.(PAL:05CH) EP (East-west Parabolar)
Adjust so that middle portion of the outermost left and right vertical
NOTE : If production line doesn't the production line of LG line looks like parallel with vertical lines of the CPT.
TV,receive available deflection adjustment pattern.
EC (East-west Coner)
6-2. Adjustment Method Adjust so that the vertical line at every 4 corners of the screen
looks like parallel with the vertical lines of the CPT.
NOTE : First,adjust deflection at N50Hz,W50Hz,Z50Hz of PAL
signal.Then adjust deflection at N60Hz,W60Hz,Z60Hz of ET (East-west Trapezium)
NTSC signal. Adjust to make the length of top horizontal line same with it of
In case of NTSC only model,adjust deflection of the bottom horizontal line.
N60Hz,W60Hz,Z60Hz of NTSC signal.
PIP (PIP Position)
Store the deflection adjustment data in EEPROM by Adjust until the distance between PIP and main picture
using ENTER button before adjusting PIP position. becomes about 1~2mm.
1) When adjusting a deflection,adjust N50Hz of PAL signal first and
adjust a deflection at W50Hz,Z50Hz,N60Hz,W60Hz,Z60Hz of PAL
signal.
2) Adjust a deflection as shown below
PAL 4:3=> PAL 16:9=>PAL ZOOM=>NTSC 4:3=>NTSC
16:9=>NTSC ZOOM.
3) After finishing deflection adjustment,press the ENTER button
to enter or exit in SVC mode.
VL (Vertical Linearity)
Adjust so that the boundary line between upper and lower half is in
accord with geometric horizontal center of the CPT.
VA (Vertical Amplitude)
Adjust so that the circle of a digital circle pattern may be
located within the effective screen of the CPT.
SC (Vertical "S" Correction)
Adjust so that all distance between each horizontal lines are to
be the same.
VS (Vertical Shift)
Adjust so that the horizontal center line of a digital circle pattern
is in accord with geometric horizontal center of the CPT.
HS (Horizontal Shift)
Adjust so that the vertical center line of a digital circle pattern is in
accord with geometric vertical center of the CPT.
- 10 -
25/29" LG FLAT CPT(CT-25Q20RB) 29" S/S SEB FLAT CPT
ITEM RANGE N50Hz W50Hz Z50Hz ITEM RANGE N50Hz W50Hz Z50Hz
VA 0050~00CF 009A 22 11 VA 0050~00CF 00A3 -22 11
VL 0025~00BF 00F3 3 0 VL 0025~00BF 00F5 0 0
SC 0000~009F 00D0 0 0 SC 0000~009F 00D0 0 0
VS 0600~0900 0774 0 0 VS 0600~0900 0744 0 0
HS 0000~003F 0019 0 0 HS 0000~003F 0016 0 0
EW 0400~0EFF 0B96 22 0 EW 0400~0EFF 0E40 0 0
ET 0700~08FF 07DE 0 0 ET 0700~08FF 07E9 0 0
EP 06E0~0840 07BF 19 -14 EP 06E0~0840 07B4 22 -14
ES 06A0~0AFF 085C 0 0 ES 06A0~0AFF 0840 0 0
EC 0790~08E0 082B 0 0 EC 0790~08E0 0840 0 0
PIP P 0790~08E0 0007 0 0 PIP P 0790~08E0 0000B 0 0
25/29" FST CPT
N50Hz W50Hz Z50Hz N60Hz W60Hz Z60Hz
ITEM RANGE
25" 29" 25" 29" 25" 29" 25" 29" 25" 29" 25" 29"
VA 0050~00CF 0092 008A -22 -22 14 14 0 0 -22 -22 -5 -5
VL 0025~00BF 00FF 00F8 0 0 0 0 -5 -5 -5 -5 0 0
SC 0000~009F 00E1 00E1 0 0 0 0 0 0 0 0 0 0
VS 0600~0900 07FF 0733 0 0 0 0 43 43 43 43 43 43
HS 0000~003F 0016 001C 0 0 0 0 4 4 4 4 4 4
EW 0400~0EFF 0C36 0C59 0 0 0 0 15 15 15 15 15 15
ET 0700~08FF 07FC 07F3 0 0 0 0 -6 -6 -6 -6 -16 -16
EP 06E0~0840 07B3 07BF 25 25 -16 -16 -2 -2 15 15 -16 -16
ES 06A0~0AFF 0864 085F 29 29 29 29 0 0 44 44 44 44
EC 0790~08E0 083F 073E 0 0 0 0 12 12 12 12 12 12
PIP P 0790~08E0 0009 0009 0 0 0 0 0 0 0 0 0 0
28" LGPD FLAT CPT
16: 9 14: 9 ZOOM STANDARD
ITEM RANGE
50Hz 60Hz 50Hz 60Hz 50Hz 60Hz 50Hz 60Hz
VA 0050~00CF 0083 0083 008F 008E 00A7 00A7 0083 0084
VL 0025~00BF 00FD 00FA 00FD 00A 00FD 00F8 00FD 00F9
SC 0000~009F 00F0 00F0 00F0 00F0 00F0 00F0 00F0 00F0
VS 0600~0900 0729 0753 0732 0756 073B 075D 0741 0753
HS 0000~003F 0016 0014 0016 0014 0016 0014 0016 0014
EW 0400~0EFF 0A6E 0A62 0A6E 0A68 0A6E 0A68 0A6E 0A68
ET 0700~08FF 07FF 07FD 07FF 07E8 07FF 07EA 07FD 07EA
EP 06E0~0840 07B7 07B6 07A9 07AB 078E 078B 07B3 07B6
- 11 -
16: 9 14: 9 ZOOM STANDARD
ITEM RANGE
50Hz 60Hz 50Hz 60Hz 50Hz 60Hz 50Hz 60Hz
VA 0050~00CF 0083 0083 008F 008E 00A7 00A7 0083 0084
VL 0025~00BF 00FD 00FA 00FD 00A 00FD 00F8 00FD 00F9
7. SVC Data & PSM,SSM Data.
PICTURE SETTING DATA (LINE SVC-3)
Menu Range 25/29" LG Flat 29" S/S-Flat 25" FST 28" FST 29" FST 28" FLAT
DVCO(Digital VCO)
IBRM(BLACK CURRENT) 0~1FFH 00C8 00C8 00C8 00C8 00C8 00C8
WDRM(WHITE CURRENT) 0~3FFH 0190 0190 0190 0190 0190 0190
BCLT(BCL THERSHOLD 0~7FFH 0055 0055 0050 0050 0050 0050
BCLTM(BCL TIME) 0~1FFH 0007 0007 0007 0007 0007 0007
BCLGA(BCL GAIN) 0~1FFH 0007 0007 0007 0007 0007 0007
SVGA(SVM GAIN) 000D 000D 000D 000D 000D 000D
SVDEL(SVM DELAY) 0007 0007 0007 0007 0007 0007
SVD1(SVM DELAY1) 0003 0003 0003 0003 0003 0003
LDLY(L DELAY) FFFC FFFE FFFE FFFE FFFE
DSCC(Discharge Sample) 0~01FF 000D 000D 0009 0007 0008
DSCV(Vertical Discharge) 0~01FF FB80 FB80 FDC0 FD80 FB80
8. OPTION Adjustment (OPTION-1,2, 3,Teletext)
8-1. Preparation for Adjustment
1) This decides funtion in accordance with model.
Press the SVC TX adjustment button(IN-START button) at SVC mode,then adjust the option at OPTION 1,2,3,4 mode.
2) Mark the option adjustment data like [111,11,111,11] in BOM.
[113,63,112,128]
D D D D
OPTION 1
OPTION 2
OPTION 3
OPTION 4
O Mark of BOM
LEVEL PART NO. SPECIFICATION DESCRIPTION JOB EXP.
1. 3141VMN382A MAIN[MC-022A] CHASSIS ASSY OP[113,63,112,128]
The OPTION 1 data is 113,OPTION 2 data is 63,the oOPTION 3 data is 112,the OPTION 4 data is 128 in this model.
8-2. Adjustment Method
1) Input data directly by the buttons corresponded with OPTION1 ??(0~255), OPTION2 ??(0~255), OPTION3 ???(0~127),OPTION 4
???(0 ~255).
2) Select each OPTION function by the CH Up/Down button and then set up each OPTION by the VOL Up/Down button.
- 12 -
8-3. OPTION 1 Function 8-5. OPTION 3 Function
Option Code Function Remark Option Code Function Remark
0 4:3 NORMAL MODEL 0 W/O GAME TXT Model
WIDE GAME
1 WIDE FLAT MODEL 1 GAME PACK GAME(HINDI MICOM) W/O TXT Model
0 W/O TOP(FLOP BASIC) 0 FORCED MONO NOT SETTING
TOP MONO
1 WITH TOP 1 FORCED MONO SETTING
0 Without ACMS funtion Only Austrailia 0 WITH 1 AV JACK(BACK)
ACMS AV2
1 With ACMS funtion 1 WITH 2 AV JACK(BACK) PAL model ALL
0 ALL NATION 0 BOOSTER CONTROL disable 1 TUNER Model
CH+AU TBS
1 Frequency Table 1 BOOSTER CONTROL enable 2 PIP only
0 WITHOUT EYE 0 W/O WOOFER
EYE WOOF
1 WITH EYE 1 WITH WOOFER
0 Without DEGAUSSING 0 1 TUNER PIP or W/O PIP 1 PIP or W/O PIP
DEG PIP
1 With DEGAUSSING 1 2 TUNER PIP 2 PIP
0 WITHOUT TILT 0 B/G,I,D/K CE/RE-MODEL
TILT SYS
1 WITH TILT 1 B/G,I,D/K,L/L' CL/RL-MODEL
0 6 KEY 2 B/G,I,D/K,M CT/RT-MODEL
KEY
1 4KEY(H80,K90,K30) 3 RESERVED
8-4. OPTION 2 Function 8-6. SOUND PRE-SCALER
Option Code Function Remark Menu DATA
0 Without TURBO search EU
TURBO FP(FM PRE-SCALER) 0016
1 With TURBO search
NP(NICAM PRE-SCALER) 0056
0 Not CARRIER MUTE MONO MODEL
C MUTE
1 CARRIER MUTE DEFAULT SP(SCART PRE-SCALER) 0013
0 NICAM S1 VOL(SCART1 PRE-SCALER) 0064
A2 ST
1 NICAM & FM STEREO S2 VOL(SCART2 PRE-SCALER) 0064
0 NO SAVE DUAL/SOUND Condition EU(CE,CL Model)
DUAL AGC-L(AUTO GAIN CONT.LIMIT) 00C5
1 SAVE DUAL SOUND Condition NON EU(CT Model)
0 PHONE JACK
SCART
1 SCART JACK
0 NORMAL VOLUME CURVE
V-CUR
1 RUSHED VOLUME CURVE
0 Without DVD INPUT
DVD
1 With DVD INPUT
0 Without HOTEL OPTION
HOTEL
1 With HOTEL OPTION
M-VOL 0~100 MAX VOLUME With HOTEL mode
- 13 -
8-7. OPTION 4 Function
OPTION CODE FUNTION
0 English Only(Eng.) Arab.Asia
1 Arab(Eng/Fr/Arab) 3834
2 Urdu(Eng/Fr/Arab/Urdu)
3 Asia(Eng/Fr/Indonesia)
0 English Only(Eng.) Farsi
1 Arab(Eng/Fr/Arab) 3834
2 Farsi(Eng/Fr/Arab/Farsi)
OSD 0 English Only(Eng.) Arab-Asia
LANG. 1 Arab(Eng/Fr/Arab) 3804
2 Urdu(Eng/Fr/Arab/Urdu)
3 Arab all(Eng/Fr/Arab/Urdu/Farsi)
4 Farsi ONly(Eng/Farsi)
5 Asia(Eng/Fr/Indonesia/Malay)
0 English Only(Eng.) WEST-EU
1 EU-7(E.Ger/Fr/Ita/Spain/Holand/Port) 3834 Only(W/TXT)
2 EU-NORTH(E-Ger/Fr/Holand/Swe/Nor/Den/Fin)
0 English Only(Eng.) EAST-EU
1 Cyrilic(E.Russia) 3834 Only(W/TXT)
2 EU-EAST(E.Ger/Rum/Pin/Hung/Chez)
3 EU-EAST All(E-Ger/Rum/Pol/Hung/Chez/Russia)
0 English Only(Eng.) EU-ALL
1 EU-7(E.Ger/Fr/Ita/Spain/Holand/Port) 3804 Only(W/O TXT)
2 EU-NORTH(E-Ger/Fr/Holand/Swe/Nor/Den/Fin)
3 Cyrilic(E.Russia)
4 EU-EAST(E.Ger/Rum/Pin/Hung/Chez)
5 EU-EAST All(E-Ger/Rum/Pol/Hung/Chez/Russia)
0 English Only(Eng.) 28" Wide Flat
1 EU-5(E.Ger/Fr/Ita/Spain) 3834 Only(W/TXT)
0 English Only(Eng.) Hindi-China-Viet.
1 Vietnam(E.Vietnam) 3804 Only(W/O TXT)
2 Hindi(E.Hindi)
3 China(E.China)
0 Eng/Spain/Port
1 Spain/Port/Eng
2 Port/Spain/Eng
3 Eng/Fr
0 KOrean Only Korea Version
- 14 -
OPTION CODE FUNTION
0 WEST-EU Farsi only
1 EAST-EU 3834 only(W/TXT)
2 Turkey
3 Cyrillic3
5 Arab/English
8 Farsi/English
TXT-L
0 WEST-EU Arab-Asia
1 EAST-EU 3834 only(W/TXT)
2 Turkey
3 Cyrillic3
5 Arab/English
0 WEST-EU WEST EU
1 EAST-EU 3834 only(W/TXT)
2 Turkey
6 Cyrillic3
0 WEST-EU EAST EU
1 EAST-EU 3834 only(W/TXT)
2 Turkey
6 Cyrillic3
0 WEST-EU 28" WIDE FLAT
1 EAST-EU 3834 only(W/TXT)
2 Turkey
4 Cyrillic3
5 Arab/English
6 Farsi/English
- 15 -
T803
ST-BY Relay Tilt(Opt.) EYE(Opt.)
PRE-AMP
TRANS
78L05 ST 5V EEPROM
LED
12V
SMPS
TRANS 7805
KA78A09 9V IC661
12V 11
MSP-34XX
(Sound Processor)
IC602
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