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MC-049A Adjustment Spec
NTV Development Group
1.Scope
These adjustment instructions are applied to MC-049A chassis.
2. Notes
2.1. Because this is a cold chassis, it is not necessary to use an
isolation transformer.
But, operate it using a transformer between the power supply line
and chassis
input to prevent electric shock and to protect the test
instrument.
2.2. All adjustments must be done in correct sequence.
However, for the better productivity, it can be changed in
pre-permitted range.
2.3. Environment conditions : If not specified, it must be done in
following conditions.
1) temperature : 25? ? 5?
2) Humidity : 65% ? 10%
2.4. Power supply of a SET which is adjusted is (100~240V)?10% AC,
50~60Hz
2.5. If not specified, the receiver must be operated for more than 20
minutes prior to
the adjustment.
2.6. Signal : Receive the standard color signal. (65dB?1dB uV)
LG standard signal means the digital pattern 13CH(480NC)
2.7. If not specified, APC ON is APC CLEAR.
3. Adjustment contents
3.1. Focus voltage adjustment
3.2. Purity & Convergence adjustment
3.3. Screen Voltage adjustment
3.4. White Balance adjustment
3.5. Deflection adjustment
3.6. Deflection setting Initial data
3.7. SERVICE adjustment data table
3.8. OPTION data setting
4. IN-STOP MODE setting
3.1. Focus voltage adjustment
3.1.1. Receive the LG standard pattern(digital pattern, 480NC, 13CH).
3.1.2. Set the picture condition on 'APC CLEAR' mode.
3.1.3. Adjust the Focus volume of FBT for the best focus of horizontal
line A,
vertical line B.
3.2. Purity & Convergence adjustment
3.2.1. Purity adjustment
(1) Preparation
(1) Receive the RED Raster Pattern for purity adjustment.(11CH)
(2) Demagnetize the CPT and Cabinet with a degaussing coil.
(2) Adjustment
(1) Pre-adjust the static convergence(STC) with 4 and 6-pole
magnet.
(2) Push the DY(deflection Yoke) all the way to the CPT pannel.
(3) Turn the purity magnet(2-pole magnet) so that the 'green'
portion of left side
and the 'blue' portion of right side have same portion.
(4) Pull the DY slowly and fix it when the whole screen become
red.
3.2.2. Convergence adjustment
(1) Preparation
(1) Receive the Cross Hatch pattern for convergence
adjustment.(09CH)
(2) Let the contrast at the adequate luminance level.
(2) Adjustment
(1) Converge the RED vertical line and BLUE vertical line in the
same line by
changing the angle between the 2 tabs of the 4 pole magnet.
(2) Converge the RED horizontal line and BLUE horizontal line in
the same line by
turning the 2 tabs of the 4 pole magnet. This time, do not
change the angle
between the 2 tabs.
(3) Converge the R, G, B vertical line in the same line by
changing the angle between
the 2 tabs of the 6 pole magnet.
(4) Converge the R, G, B horizontal line in the same line by
turning the 2 tabs of
the 6 pole magnet. This time, do not change the angle between
the 2 tabs.
3.3. Screen voltage adjustment
3.3.1. Receive the NTSC or PAL-M/N signal into RF mode ( regardless of
channel.)
3.3.2. If you press the ADJ button in LINE SVC mode (IN-START button),
the LINE SVC
mode changes to screen adjustment mode.
3.3.3. Turn the Screen volume of FBT until the horizontal line is no
longer seen
and then stop.
3.3.4. Press the TV/AV button to exit SVC mode.
3.4. White Balance Adjustment
Prior to this adjustment, screen voltage adjustment must be finished.
3.4.1. Necessary Instrument
(1). White Pattern Generator (Can generate Low/High Light pattern)
(2). White Balance meter( CRT color Analyzer,CA-100)
(3). Factory Remote control
3.4.2. Preliminary steps
(1). Tune the TV set to receive an 100% white pattern.
(2). Perform screen adjustment first.
3.4.3. Adjustment
(1). Enter into adjustment mode by "INSTART" key and select
SERVICE1 mode.
(2). Adjust the item with CH+/- Key.
(3). Adjust the data with VOL+/- Key.
(4). Adjustment Procedure
Adjust"CONTRAST" and "BRIGHT" so that the bright level is
35Ft-L.
Select B DRIVE to adjust Y coordinate in High Light and select R DRIVE
to adjust X coordinate so that the color coordinates in High Light match
the values
In Table below.
Adjust 'CONTRAST" and "BRIGHT" so that the bright level is
4.5Ft-L.
Select B CUT to adjust Y coordinate in Low Light and select R CUT
to adjust X coordinate so that the color coordinate in Low light match
the values in
Table below.
Repeat (1) ~ (4) until the color coordinates in High and Low color
satisfies the Table.
Check the adjusted color coordinates with the white balance meter
Store the W/B adjustment data in EEPROM by using ENTER button before
EXIT.
[ White Balance Color coordinates ]
EU N-EU KOREA PHILIPPINES
X 288 268 267 266
Y 295 273 276 282
Temperature 9000 13000 13000 13000
[ WHITE BALANCE Initial Data]
Description Item Range Initial data refer
LOW LIGHT R CUT 0 ~ 511 80
G CUT 0 ~ 511 80 FIX
B CUT 0 ~ 511 80
HIGH LIGHT R DRIVE 0 ~ 511 430
G DRIVE 0 ~ 511 430 FIX
B DRIVE 0 ~ 511 430
* Note : When adjusting white balance automatically, connect the
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 "CPU OFF".)
3.5. Deflection adjustment
3.5.1. Preparation
(1) At adjustment mode (IN-START button on remote control of
adjustment), changed to
SERVICE 2 mode to adjust the deflection.
(2) Press Channel +/- button for desirous function adjustment.
(3) Press Volume +/- button to adjust the data.
(4) Tune the TV set to receive a Digital pattern.
3.5.2. Deflection setting data adjustment (Digital pattern : 480NC,
13CH)
* Note : First, adjust deflection at 50Hz of PAL signal.
Then, adjust deflection at 60Hz of NTSC signal.
Store the deflection adjustment data in EEPROM by using
ENTER button.
Press Exit button to exit SVC mode.
(1) VL (Vertical Linearity)
Adjust so that the boundary line between upper and lower half
is in accord with geometric
horizontal center of the CPT.
(2) VA (Vertical Amplitude)
Adjust so that the circle of a digital circle pattern may be
located within the effective
screen of the CPT.
(3) SC (Vertical S-Correction)
Adjust so that all distance between each horizontal lines are
to be the same.
* Recommend initial setting data.
(4) 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.
(5) 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.
(6) EW (Horizontal Width)
Adjust to that a digital circle pattern looks like exact
circle.
[Fig 3] PAL Digital Pattern (EU05CH) [Fig 4] NTSC
Digital Pattern (US13CH)
(7) ET (East-west Trapezium)
Adjust to make the length of top horizontal line same with it
of the bottom horizontal line.
(8) EP (East-west Parabolar)
Adjust so that middle portion of the outermost left and right
vertical line looks like parallel
with vertical lines of the CPT.
(9) CRNU (Upper Coner )
Adjust until symmetrize upper coner of the screen.
(10) CRNL (Lower Coner)
Adjust until symmetrize upper coner of the screen.
(11) BOW
Adjust the left and right crooked line on upper and lower side.
(12) ANGLE
Adjust the vertical slope.
(13) CRNU6
More deatail adjust until symmetrize upper coner of the screen.
(14) CRNL6
More deatail adjust until symmetrize Lower coner of the screen.
(13) PIP H (PIP H position)
Adjust until the distance between PIP and main picture becomes
about 1~2mm.
[Fig 5] PIP H Position Adjust Picture
( Only PIP Function model)
3.6 Deflection setting Initial data
Deflection setting Initial data(SERVICE 2)
1). LG 25"/29" FLAT & FST CPT Model
ITEM Description Range N 50Hz(PAL) Adjust or
Recommend
29" FLAT 25" FLAT 29"
FST 25"
FST
VA Vert. Position -512~511 48 54 -70 25 Adjust
VL Vert. Linearity -512~511 -12 -44 0 -12 Recommend
SC S-Correction -512~511 140 140 140 140 Recommend
VS Vert. Amplitude -512~511 12 6 5 5 Adjust
HS Hor. Position 32~2047 147 157 162 160 Adjust
EW Hor. Width -256~255 -73 -69 -37 -44 Adjust
ET Trapezoidal -512~511 -13 -7 -12 -3 Adjust
EP Pin Cushion -512~511 -73 -88 -100 -118 Adjust
CRNU Upper Corner -512~511 8 8 35 15 Adjust
CRNL Lower Corner -512~511 12 12 35 15 Adjust
BOW Bow -512~511 0 0 0 6 Recommend
ANGLE Angle -512~511 0 0 0 0 Recommend
CRNU6 Upper Corner(6TH) -512~511 0 0 0 0 Recommend
CRNU6 Lower Corner(6TH) -512~511 0 0 0 0 Recommend
OSD P OSD Position -64 ~ 63 0 0 0 0 Recommend
PIP H PIP H Position 0 ~40 0 0 0 0 PIP model only
Adjust : It is possible to adjust data.
Recommend : It is recommended, if necessary it is possible to adjust.
FIX : Don't change data.
2). LG 28" WIDE FLAT & 28" FST(PHILIPS) CPT Model
ITEM Description Range N 50Hz(PAL) Adjust or
Recommend
LG 28"
WIDE FLAT PHILIPS 28"
FST
VA Vert. Position -512~511 -255 -15 Adjust
VL Vert. Linearity -512~511 -30 -40 Recommend
SC S-Correction -512~511 140 200 Recommend
VS Vert. Amplitude -512~511 9 9 Adjust
HS Hor. Position 32~2047 162 165 Adjust
EW Hor. Width -256~255 -70 -40 Adjust
ET Trapezoidal -512~511 -0 2 Adjust
EP Pin Cushion -512~511 -70 -152 Adjust
CRNU Upper Corner -512~511 15 37 Adjust
CRNL Lower Corner -512~511 15 6 Adjust
BOW Bow -512~511 0 3 Recommend
ANGLE Angle -512~511 0 2 Recommend
CRNU6 Upper Corner(6TH) -512~511 0 1 Recommend
CRNU6 Lower Corner(6TH) -512~511 0 30 Recommend
OSD P OSD Position -64 ~ 63 0 0 Recommend
PIP H PIP H Position 0 ~40 0 0 PIP model only
3). SDI 29" FLAT
ITEM Description Range N 50Hz(PAL) Adjust or
Recommend
SDI 29" FLAT
VA Vert. Position -512~511 291 Adjust
VL Vert. Linearity -512~511 -12 Recommend
SC S-Correction -512~511 140 Recommend
VS Vert. Amplitude -512~511 16 Adjust
HS Hor. Position 32~2047 160 Adjust
EW Hor. Width -256~255 -27 Adjust
ET Trapezoidal -512~511 -2 Adjust
EP Pin Cushion -512~511 -100 Adjust
CRNU Upper Corner -512~511 10 Adjust
CRNL Lower Corner -512~511 2 Adjust
BOW Bow -512~511 1 Recommend
ANGLE Angle -512~511 1 Recommend
CRNU6 Upper Corner(6TH) -512~511 24 Recommend
CRNU6 Lower Corner(6TH) -512~511 14 Recommend
OSD P OSD Position -64 ~ 63 0 Recommend
PIP H PIP H Position 0 ~40 0 PIP model only
3.7 SVC Adjustment data table
1)SERVICE1
ITEM Description LG
25"/29"
FLAT LG
25"/29"
FST PHILIPS
28"
FST LG
28"
FLAT SDI
29"
FLAT
S-BRI Sub Bright( Luma Offset) 0 0 0 0 0
YCDEL Luminance Delay -3 -3 -3 -3 -3
EXCON External Contrast -1 -1 -1 -1 -1
2)SERVICE2
ITEM Description LG
25"/29"
FLAT LG
25"/29"
FST PHILIPS
28"
FST LG
28"
FLAT SDI
29"
FLAT
HBSO Horizontal Blanking Stop 185 185 200 200 222
HBST Horizontal Blanking Start 1250 1250 1260 1260 1265
EHTTH EHT Compen. Threshold 150 150 150 150 150
EHT S EHT Static Time constant 100 100 100 100 100
EHTV1 Static V Comp.(1ST Gain) -17 -17 -17 -17 -17
EHTV2 Static V Comp.(2nd Gain) -70 -70 -70 -70 -70
EHTH1 Dynamic H Comp.(1ST Gain) -3 -3 -3 -3 -3
EHTH2 Dynamic H Comp.(2nd Gain) -10 -10 -10 -10 -10
EHT F EHT Dynamic Time constant 1 1 1 1 1
3)SERVICE3
ITEM Description LG
29"
FLAT LG
25"
FLAT LG
29"
FST LG
25"
FST LG
28"
W/FLAT PH
28"
FST SDI
29"
FLAT
BCLTH BCL Threshold Current 435 330 350 350 350 270 435
BCLTC BCL Time Constant 507 507 507 507 507 507 507
BCLGA BCL Loop Gain 480 210 300 300 300 380 480
BCLC BCL Minimum Contrast 200 230 200 230 200 230 200
SVM D SVM Delay 4 4 4 4 5 4 4
SVM G SVM Gain 20 20 20 20 10 20 5
VBSO Vertical Blanking Stop 22 22 22 23 20 22 20
VBST Vertical Blanking Start 312 312 312 312 312 312 312
PLLTC Time Constant HPLL 1 1 1 1 1 1 1
NMLIM Noise Measurement Line 30 30 30 30 30 30 30
4)SERVICE4 (All models are equally applied)
ITEMS Description ALL MODEL
FP FM PRE-SCALER 28
NP NICAM PRE-SCALER 60
SP SCART PRE-SCALER 24
S1VOL SCART1 PRE-SCALER 117
S2VOL SCART2 PRE-SCALER 117
AGC-L AUTO GAIN CONT. LIMIT 670
M-STR Bass Effect Strength 45
M-HMC Bass Harmon Cont 25
M-HP Bass HP Corner Freq 9
M-LP Bass LP Corner Freq 11
M-LIM Bass Ampl-Limit 252
TOPST Tuner Take-Over-point 4
VID-P Freq. Resp Video peak Filter 1
THRSL H Slicing Level Threshold 1
SLTHD Slicing Level Threshold Offset H 0
THDVP Vertical Slicing Level Threshold Polarity 1
THDV Slicing Level Threshold V 6
LNA-L LNA Level 4
CRAMP Carrier Recovery Amplitude Threshold 0
3.8. OPTION data Setting (OPTION-1,2,3,4,5)
3.8.1. Preparation for Adjustment
(1) This decides function 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, 4,5 mode.
(2) Mark the option adjustment data like (112,68,164,32,8) in BOM.
? Mark of BOM ( Example)
LEVEL PART NO. SPECIFICATION DESCRIPTION
1. 3141VMN382A MAIN CHASSIS ASSY [112,68,164,32,8]
1). OPTION1 Function
OPTION CODE FUNCTION REMARK
INCH 0
1
2
3
4
5
6
7 21A
21B
21C
29F/25F
28WF/32WF
28N
34F
29N/25N
SYS 0
1
2
3 BG/I/DK
BG/I/DK/L
BG/I/DK/M
BG/L
SOUND 0
1
2
3 RF STEREO
AV STEREO
MONO
MONO DUAL
CH + AU 0
1 WITHOUT D/K CHINA or BB SYSTEM
WITH D/K CHINA or BB SYSTEM
CHINA, Austrailia
2). OPTION2 Function
OPTION CODE FUNCTION REMARK
AV2 0
1 WITHOUT AV2 JACK (BACK)
WITH AV2 JACK (BACK)
DVD 0
COMPONENT(480i) ?
COMPONENT(480i) ?
1SCRT 0
1 PHONE JACK ONLY
SCART + PHONE JACK
GAME 0
1 WITHOUT GAME
WITH GAME ( PACK )
EYE 0
1 WITHOUT EYE
WITH EYE
TX 0
1 LARGE
SMALL For MC-049A
For MC-049B
KEY 0
1 6, 8 KEY
4KEY
DEGAU 0
1 WITHOUT DEGAUSSING
WITH DEGAUSSING
3). OPTION3 Function
OPTION CODE FUNCTION REMARK
TEXT 0
1 200PR ( WITHOUT TEXT )
100PR ( WITH TEXT )
TOP 0
1 FLOP TXT
TOP TXT
ACMS 0
1 WITHOUT ACMS FUNCTION
WITH ACMS FUNCTION
I II SV 0
1 NO SAVE DUAL SOUND CONDITION
SAVE DUAL SOUND CONDITION EU
NON EU
VOL 0
VE??
RUSHED VOLUME CURVE??
TSEAR 0
1 WITHOUT TURBO SEARCH
WITH TURBO SEARCH
T P-S 0
1 WITHOUT TURBO PICTURE/ SOUND
WITH TURBO PICTURE/ SOUND
HDEV 0
1 WITH OUT HIGH DEVIATION OPTION
WITH HIGH DEVIATION OPTION ????
Indonesia,China, Indo
4). OPTION4 Function
OPTION CODE FUNCTION REMARK
OSD L 0
1
2
3
4
5
6
7
8
9
10 ENG ONLY
EU-5EA
EU ETC
GREECE
EU-ALL
FARSI
ARAB URDU
E+HINDI
E+I+M+V
E+THAI
E+CHINA
TXT L 0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17 ?,?,???,??,?,???,???
???, ?,???,??,?,?????, ???,
????
?, ?, ???, ???, ?, ???, ???
?, ??,???,????, ?, ???, ???,
????
???, ???, ?????, ???
???, ???, ???, ??, ?????, ???
?, ???, ?????, ??, ? ?????, ???
?, ?, ???, ???, ?, ???, ???, ????
?, ???, ?, ????
?, ?, ???, ???, ?, ???, ???, ????
?, ?, ???, ???
?, ?, ???, ???
???, ???
?, ?, ???, ???
?, ?, ???, ???
?, ???,??? WEST EU
EAST EU1
TURKEY EU
EAST EU2
CYRILLIC1
CYRILLIC2
CYRILLIC3
TURK GRE1
TURK GRE2
TURK GRE3
ARAB FRA
ARAB ENG
ARAB HEB1
ARAB HEB2
FARS ENG
FARS FRA
FARS ALL
AUTO
HOTEL 0
1 WITHOUT HOTEL OPT ON
WITH HOTEL OPT ON
MAX V 0 ~
100
At time HOTEL OPT. 1 is set.
5). OPTION5 Function
OPTION CODE FUNCTION REMARK
AV3 0
1 WITHOUT AV3
WITH AV3
SAV 0
1 WITHOUT S-VIDEO
WITH S-VIDEO
WOOF 0
1 WITHOUT WOOFER SPK
WITH WOOFER SPK
TILT 0
1 WITHOUT TILT
WITH TILT
BOOST 0
1 TUNER WITHOUT BOOSTER
TUNER WITH BOOSTER
2SCRT 0
1 MODEL WITHOUT 2 SCART JACK MODEL
MODEL WITH 2 SCART JACK
CHINA 0
1 Not China Model
China Model
A2 ST 0
1 Without A2 ST
With A2 ST
4.IN STOP Setting
It must be pushed IN STOP button before shipment.
4.1.Shipping Condition
Number Items Condition Remarks
1 ? ? OFF
2 Input TV
3 MEMORY CHANNEL CH. MEMORY ??????
4 SOUND 30 STEPS
5 MUTE OFF
6 TURBO SOUND OFF
7 PSM DYNAMIC
8 SSM FLAT
9 BOOSTER ON
10 CHILD LOCK OFF
11 AUTO SLEEP OFF
12 AVL OFF
13 BALANCE 0
14 BLUE BACK OFF
15 EYE OFF
16 TILT 0
17 DEGAUSS OFF
*** PSM MODE
PSM Dynamic Standard Mild Game
CONTRAST 100 90 70 60
BRIGHT 60 60 55 50
COLOR 60 55 50 40
SHARPNESS 60 50 50 40
PAGE
PAGE
PAGE 13
(A)
[Fig 1] PAL Digital Pattern (EU05CH)
[Fig 2] NTSC Digital Pattern (US13CH)
(B)
PAGE 13 /29
?? :2003/1
?? :
LG
? ??? ?? ???
LG
(51)
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LG ??