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1. Application Object
These instructions are applied to all of the LCD TV, LA89D.
2. Notes
(1) Because this is not a hot chassis, it is not necessary to use
an isolation transformer. However, the use of isolation
transformer will help protect test equipment.
(2) Adjustments must be done in the correct order.
(3) The adjustments must be performed in the circumstance of
20±5°C of temperature and 65±10% of relative humidity if
there is no specific designation.
(4) The input voltage of the receiver be must kept 220V, 60Hz
when adjusting.
(5) The receiver must be operational for about 15 minutes
prior to the adjustments.
(6) Perform preliminary operation after receiving 100% White
Pattern.
(7) White Pattern entry method
1) Enter into Ez-Adjust by pressing the ADJ key on the
adjustment R/C.
2) 100% FULL WHITE PATTERN appears if selecting the
white with direction key after selecting the 10. Test
Pattern with the CH +/- key.
* It is possible to heat run the set without a separate signal
generator in this mode.
Caution : Care must be taken as afterimage phenomena
may occur about the black level part of screen If leaving
pause image turned on for more than 20 minutes
(especially inner digital pattern (13 CH), Cross Hatch
Pattern (09CH) with significant black/white contrast).
3. ADC Adjustment
3-1. PC input ADC
(1) Auto RGB Gain/Offset Adjustment
1) Convert to PC in Input-source
I
2
C COMMAND:0xF4(SELECT INPUT) 0x00 0x60(RGB)
cf. 0x10(TV), 0x20(AV), 0x40(COMPONENT),
0x60(RGB), 0x90(HDMI)
2) Signal equipment displays
Output Voltage : 700 mVp-p
Impress Resolution XGA (1024x 768 @ 60Hz)
Model : 60 in Pattern Generator
Pattern : 29 in Pattern Generator (MSPG-925 Series)
[gray pattern that left & right is black and center is
white signal (Refer below picture)].
<Adjustment pattern (PC)>
3) Adjust by commanding AUTO_COLOR_ADJUST (0xF1)
0x00 0x02 instruction.
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
ADJUSTMENT INSTRUCTION
(2) Confirmation
1) We confirm whether "0xB6" address of EEPROM
"0xA2" is "0xAA" or not.
2) If "0xB6(RGB)" address of EEPROM "0xB2" isn't
"0xAA", we adjust once more.
3) We can confirm the ADC values from "0xB0~0xB5
(RGB)" addresses in a page "0xA2"
* Manual ADC process using Service Remote control. After
enter Service Mode by pushing "ADJ" key, execute "Auto-
adjust" by pushing "
EZ ADJUST
0. ADC CALIBRATION
1. ADC ADJUST
2. SUB B/C ADJUST
3. W/B ADJUST
4. WHITE PATTERN
5. 2HOUR OFF
6. OAD
7. UART DOWNLOAD
8. FACTORY MODE
9. DEBUG MODE
3-2. COMPONENT input ADC
(1) Component Gain/Offset Adjustment
1) Convert to Component in Input-source
I
2
C command : 0xF4(Select input) 0x00 0x40(Component)
cf. 0x10(TV), 0x20(AV), 0x40(COMPONENT),
0x60(RGB), 0x90(HDMI)
<Adjustment pattern (COMPONENT)>
2) Signal equipment displays
Impress Resolution 480i
MODEL : 209
PATTERN : 08 in Pattern Generator(MSPG-925 Series)
3) Adjust by commanding AUTO_COLOR_ADJUST (0xF1)
0x00 0x02 instruction.
4) Signal equipment display
-Impress Resolution : 1080i
- MODEL: 223
- PATTERN: 08 in Pattern generator(MAPG-925 series)
5) Adjust by commanding AUTO_COLOR ADJUST(0xF1)
0x00 0x02 instruction.
* Manual ADC process using Service Remote control. After
enter Service Mode by pushing "ADJ" key, execute "Auto-
adjust" by pushing "
EZ ADJUST
0. ADC CALIBRATION : COMPONENT
1. ADC ADJUST
2. SUB B/C ADJUST
3. W/B ADJUST
4. WHITE PATTERN
5. 2HOUR OFF
6. OAD
7. UART DOWNLOAD
8. FACTORY MODE
9. DEBUG MODE
- 10 -
G
" key at "0. ADC CALIBRATION".
: RGB
: OFF
: ON
: ON
: OFF
in Pattern Generator(480i Mode)
in Pattern Generator(1080i Mode)
G
" key at "0. ADC CALIBRATION".
: OFF
: ON
: ON
: OFF
LGE Internal Use Only
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