Adjustment Instruction - LG 19LG31 Service Manual

1. Application Range
This specification sheet is applied for all of the LCD TV with
LA85C chassis.
2. Specification
1) The adjustment is according to the order which is
designated and which must be followed, according to the
plan which can be changed only on agreeing.
2) Power Adjustment : 100-240V~, 50/60Hz
3) Magnetic Field Condition : Nil.
4) Input signal Unit : Product Specification Standard
5) Reserve after operation : Above 30 Minutes
6) Adjustment equipments: Color Analyzer(CA-210 or CA-
110), Pattern Generator (MSPG-925L or Equivalent), DDC
Adjustment Jig equipment, SVC remote control
3. Main PCB check process
* APC - After Manual-Insult, executing APC
3.1. Software download
1) Execute ISP program "Mstar ISP Utility" and then click
"Config" tab.
2) Set as below, and then click "Auto Detect" and check "OK"
message. If display "Error", Check connect computer, jig,
and set.
3) Click "Connect" tab. If display "Can't", Check connect
computer, jig, and set.
(2) OK
4) Click "Read" tab, and then load download file(XXXX.bin) by
clicking "Read".
(4)
filexxx.bin
5) Click "Auto" tab and set as below
6) click "Run".
7) After downloading, check "OK" message.
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes

ADJUSTMENT INSTRUCTION

(1) (3)
Please Check Speed :
To us speed between from 200 KHz
to 400 KHz
(5)
filexxx.bin
3.2. ADC Process
3.2.1. 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.
(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
- 8 -
(7) ........ OK
(6)
G
" key at "0. ADC CALIBRATION".
: RGB
: OFF
: ON
: ON
: OFF
LGE Internal Use Only