Read LG 42LB1R (CHASSIS:LP78A) Service Manual online
5.1. Sequence of Adjustment
(1) DDC data of Analog-RGB
1) Init the data
2) Load the EDID data. (Open file)
[Analog - RGB : LP78A_RGB.ANA]
[Digital - HDMI : LP78A_HDMI.DVI]
[Digital - HDMI : LP78A_HDMI.DVI]
3)Set the S/W as below
4) Push the “Write Data & Verify”button. And confirm “Yes”.
5) If the writing is finished, you will see the “OK” message.
5) If the writing is finished, you will see the “OK” message.
6. Adjustment of White Balance
6.1 Required Equipment
(1) Remote control for adjustment
(2) Color Analyzer (CA-110 or CA-210 or same product)
(3) Auto W/B adjustment instrument(only for Auto adjustment)
(2) Color Analyzer (CA-110 or CA-210 or same product)
(3) Auto W/B adjustment instrument(only for Auto adjustment)
6.2 Connecting diagram of equipment for
measuring
(For Automatic Adjustment)
(1) Enter the DDC adjust mode
- Enter the DDC adjust mode at the same time heat-run
mode when pushing the power on by power only key
- Enter the adjust mode and change the input mode to AV
(ZA : AV3, TA,MA : AV2)when pushing the Front av key
- Maintain the DDC adjust mode with same condition of
Heat-run -> Maintain after AC off/on in status of Heat-run
pattern display
pattern display
(2) Release the DDC adjust mode
- Release the adjust mode after AC off/on or std-by off/on
in status of finishing the Hear-run mode
- Release the Adjust mode when receiving the aging off
command(F3 00 00) from adjustment equipment
- Need to transmit the aging off command to TV set after
finishing the adjustment.)
(3) DDC adjustment support command set
- 15 -
<EDID DATA>
Adjustment
Aging On/Off
Input select
R GAIN
G GAIN
B GAI
CMD(HEX)
F3
F4
16
18
1A
ADR
00
00
00
00
00
FF : ON / OO : OFF
0x10 : TV
0x20 : AV1(SCART1)
0x21 : AV2(SCART2)
0x23 : AV3(Side AV)
0x40 : Component1
0x50 : RGB DTV
0x60 : RGB PC
0x90 : HDMI1 DTV
GAIN adjustment
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