Wednesday, February 27, 2013

LG 32LC41 - 32LC42 - 32LC43 - 32LC44 - CHANNEL MEMORY DOWNLOAD & EDID / DDC DOWNLOAD - WHITE BALANCE ADJUSTMENT




CHANNEL MEMORY DOWNLOAD
  • Connect the download jig to D-sub jack.
  • Execute ‘Channel.vi2c’ program in PC, then a main window will be opened.
  • Push the button change and select the Channel memory data.
  • Check the communication is OK or not.
  • Push the Read area (Ackn. Check) and check Cyan area is OK message.
  • Push the Update NVM from File.

EDID (The Extended Display Identification Data ) /DDC (Display Data Channel) download
Caution
Use the proper signal cable for EDID Download.
Never connect HDMI & D-SUB Cable at the same time.
Use the proper cables below for EDID Writing.

Sequence of Adjustment
  • DDC data of Analog-RGB
  • Init the data.
  • Load the EDID data. (Open file) [Analog - RGB : LP78A_RGB.ANA] [Digital - HDMI : LP78A_HDMI.DVI]
  • Set the S/W as below.
  • Push the “Write Data & Verify”button. And confirm “Yes”.
  • If the writing is finished, you will see the “OK” message.
WHITE BALANCE ADJUSTMENT
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)
Connecting diagram
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 à Maintain after AC off/on in status of Heat-run pattern display.
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.)
(For Manual adjustment)
Operate the zero-calibration of the CA-110 or CA-210, then stick sensor to LCD module when you adjust.
For manual adjustment, it is also possible by the following sequence.
  1. Select RF no signal by pressing “POWER ON” key on remote control for adjustment then operate heat run more than 15 minutes.  (If not executed this step, the condition for W/B will be differ. The W/B condition is Picture Mode : Standard (MA : Optimum), Color Temp : Normal. )
  2. Changing to the av mode by pushing the input or front AV key.
  3. Display the internal pattern of the VCT-Pro IC by pushing the IN-START.
  4. Stick sensor to center of the screen and select each items (Red/Green/Blue Gain and Offset) using D/E (CH+/-) key on R/C.
  5. Adjust R Gain / B Gain using F/G (VOL+/-) key on R/C.
  6. Adjust it until color coordination becomes as below. (Initially, R/G/B gain and R/G/B offset values are fixed as below)
Red Gain : 80 , Green Gain : 80 , Blue Gain : 80
Red Offset : 80, Green Offset : 80 , Blue Offset : 80
  • Target Value [Picture Mode : Standard (ZA, TA),
Optimum(MA), Color Temp: Normal]
Normal (9300K) x ; 0.283±0.003 y ; 0.298±0.003
Luminance(Y) AV : upper 150 cd/m2 (Typ : 350 cd/m2)
  • Reference Value(Automatically fixed)
Cool(11000K): x:0.274±0.003, y: 0.286±0.003
Warm(7200K) : x:0.303±0.003, y: 0.319±0.003
When adjustment is completed, Exit adjustment mode using EXIT key on R/C.