1. PANEL voltage adjustment
POWER VOLTAGE ADJUST FOR LG TTL PANEL
The power voltage should be adjusted and checked when changing the panel or power
board
1. SETTING INPUT SOURCE TO RGB MODE.
2. RGB MODE PATTERN IS ALL WHITE PATTERN.
FACTORY & ELECTRONIC ADJUSTMENT VER1.0
3-2
3. FOLLOW THE PANEL LABEL VOLTAGE TO ADJUST VR (Va=75V, Vs=175V, -Vy=-80,
Vset_up=220V )
4. CHECK VOLTAGE BETWEEN "CHECK POINT" AND GROUND.
5. ADJUST SEQUENCE
1st 2nd 3rd 4th
VA VS -Vy Vset_up
Va ADJ Vs ADJ -Vy ADJ Vset_up ADJ
2. Color Temperature Adjustment GTW P42M102 TV Service mode
2.1.1 Color Temperature setting in DVI Mode:
(1) Turn on PDP set and warm up for over 30 minutes.
(2) Turn on Color Analyzer CA-100 and reset CA-100.
(3) Switch PDP input to DVI mode, press the “Recall” key on remote control to have
PDP set in factory default status.
(4) Set up Video Pattern Generator (Chroma, Model= C2226). Timing set = 640 x
480 @ 60Hz; Video = Panel Link, this is the DVI output mode. Connecting PDP
DVI input to Chroma to receive DVI signal.
(5) Dark level and bright level center block definition:
A. Dark level center block definition:
Pattern set = Pattern name = 1-mosaic,
Color form = norm,
Background color = 0
Foreground color = 17
According to C-2226 user manual, appendix analog-color: Normal Pen from Pen 17 = R: 102, G: 102, B: 102
102 (output amplifier)/1024 (total amplifier)=10%, therefore the 10% is the 10 IRE white output pattern.
B. Bright level center block definition:
Pattern set = Pattern name = 1-mosaic,
Color form = norm,
Background color = 0
Foreground color = 25
According to C-2226 user manual, appendix analog-color: Normal Pen from Pen 25 = R: 614, G: 614, B: 614
614 (output amplifier)/1024 (total amplifier)=60%, therefore the 60% is the 60 IRE white output pattern.
(6) There are 3 different modes (DVI, RGB and AV) need color temperature setting;
there are 4 different color temperatures (5400K, 6500D, 9300K and 13800K) in each mode. Each color temperature needs adjust dark level, bright level, and R, G, B. The OSD is as below:
DVI (RGB, AV) 5400K (6500D, 9300K, 13800K)
X=335 Y=343
GAIN BIAS
R G B R G B
*Note: When adjusting the color temperature, please note what is the input source and what input the PDP is, the input source and the PDP input mode should be the same.
(7) Put the color analyzer CA-100 in the center of the screen.
2.1.2 GTW P42M102 TV Service mode Adjusting procedure:
(1) Receive Chroma C-2226 DVI dark level center block signal (10 IRE), press the factory key in PDP remote control to go into factory mode, you will see the 5400K color temperature setting menu.
(2) 5400K dark level center block adjustment procedure:
A. Press MENU key in remote control to select G-BIAS, and adjust Y=0.35 FL
B. Press MENU key in remote control to select R-BIAS, and adjust x=335±10FL
C. Press MENU key in remote control to select B-BIAS, and adjust y=343±10FL
D. Adjust R/G/B-BIAS, make sure the final value x=335±10FL, y=343±10FL,
Y=0.35FL (3) 5400K bright level center block adjustment procedure: (Please set Chroma C-
2226 DVI bright level center block signal to 60 IRE)
A. Press MENU key in remote control to select G-GAIN, and adjust Y=25±1FL
B. Press MENU key in remote control to select R-GAIN, and adjust x=335±10FL
C. Press MENU key in remote control to select B-GAIN, and adjust y=343±10F
D. Adjust R/G/B-GAIN, make sure the final value x=335±10FL, y=343±10FL,
Y=25±1FL.
(4) When you want to go ahead for next color temperature setting, press the factory key in remote control. For each color temperature setting, please repeat the procedure 1-3. Only x and y value will change in different color temperature mode (in 6500D, x=313, y=329; in 9300K, x=280, y=300; in 13800K, x=270, y=270), Y value are all the same in each color temperature mode (dark level
Y=0.35, bright level Y=25).
2.2.1 Color Temperature setting in RGB Mode:
(1) Turn on Color Analyzer CA-100 and reset CA-100.
(2) Switch PDP input to RGB mode, press the “Recall” key on remote control to have PDP set in factory default status.
(3) Set up Video Pattern Generator (Chroma, Model= C2226). Timing set = 640 x 480 @ 60Hz; Video = Analog, this is the RGB output mode. Connecting PDP RGB input to Chroma to receive RGB signal.
(4) Dark level and bright level center block definition:
A. Dark level center block definition:
Pattern set = Pattern name = 1-mosaic,
Color form = norm,
B. Background color = 0
Foreground color = 17
According to C-2226 user manual, appendix analog-color: Normal Pen from
Pen 17 = R: 102, G: 102, B: 102
102 (output amplifier)/1024 (total amplifier)=10%, therefore the 10% is the
10 IRE white output pattern.
C. Bright level center block definition:
Pattern set = Pattern name = 1-mosaic,
Color form = norm,
Background color = 0
Foreground color = 25
According to C-2226 user manual, appendix analog-color: Normal Pen from
Pen 25 = R: 614, G: 614, B: 614
614 (output amplifier)/1024 (total amplifier)=60%, therefore the 60% is the
60 IRE white output pattern.
(5) There are 3 different modes (DVI, RGB and AV) need color temperature setting;
there are 4 different color temperatures (5400K, 6500D, 9300K and 13800K) in
each mode. Each color temperature needs adjust dark level, bright level, and R,
G, B. The OSD is as below:
DVI (RGB, AV) 5400K (6500D, 9300K, 13800K)
X=335 Y=343
GAIN BIAS
R G B R G B
GTW P42M102 TV Service Menu
Photo credit : ehotelier.com
*Note: When adjusting the color temperature, please note what is the input source and what input the PDP is, the input source and the PDP input mode should be the same.
(6) Put the color analyzer CA-100 in the center of the screen.
2.2.2 GTW P42M102 TV Service mode Adjusting procedure:
(1) Receive Chroma C-2226 RGB dark level center block signal (10 IRE), press the factory key in PDP remote control to go into factory mode, you will see the 5400K color temperature setting menu.
(2) 5400K dark level center block adjustment procedure:
A. Press MENU key in remote control to select G-BIAS, and adjust Y=0.35 FL
B. Press MENU key in remote control to select R-BIAS, and adjust
x=335±10FL
C. Press MENU key in remote control to select B-BIAS, and adjust y=343±10FL
D. Adjust R/G/B-BIAS, make sure the final value x=335±10FL, y=343±10FL,
Y=0.35FL
(3) 5400K bright level center block adjustment procedure: (Please set Chroma C-
2226 RGB bright level center block signal to 60 IRE)
A. Press MENU key in remote control to select G-GAIN, and adjust Y=25±1FL
B. Press MENU key in remote control to select R-GAIN, and adjust x=335±10FL
C. Press MENU key in remote control to select B-GAIN, and adjust y=343±10F
D. Adjust R/G/B-GAIN, make sure the final value x=335±10FL, y=343±10FL,
Y=25±1FL.
(4) When you want to go ahead for next color temperature setting, press the factory key in remote control. For each color temperature setting, please repeat the procedure 1-3. Only x and y value will change in different color temperature mode (in 6500D, x=313, y=329; in 9300K, x=280, y=300; in 13800K, x=270, y=270), Y value are all the same in each color temperature mode (dark level
Y=0.35, bright level Y=25).
2.3.1 Color Temperature setting in AV mode:
(1) Turn on Color Analyzer CA-100 and reset CA-100.
(2) Switch PDP input to AV1 mode, press the “Recall” key on remote control to havePDP set in factory default status.
(3) Turn on SENCORE VP-300 Multimedia Video Generator, set the dark level and bright level center block. Then connect VP-300 AV output to PDP AV1 input.
(4) Dark level center block definition: NTSC system, pattern=WINDOW 1=14 IRE.
Bright level center block definition: NTSC system, pattern=WINDOW 2=60 IRE
2.3.2 Adjusting procedure:
(1) Receive VP-300 dark level center block signal from AV1 input, press the factory key in PDP remote control, you will see the 5400K color temperature setting menu.
(2) 5400K dark level center block adjustment procedure:
A. Press MENU key in remote control to select G-BIAS, and adjust Y=1.5 FL
B. Press MENU key in remote control to select R-BIAS, and adjust x=335±10FL
C. Press MENU key in remote control to select B-BIAS, and adjust y=343±10FL
D. Adjust R/G/B-BIAS, make sure the final value x=335±10FL, y=343±10FL,
Y=1.5FL
(3) 5400K bright level center block adjustment procedure: (Please set VP-300 bright level center block signal to 60 IRE)
A. Press MENU key in remote control to select G-GAIN, and adjust Y=30FL
B. Press MENU key in remote control to select R-GAIN, and adjust x=335±10FL
C. Press MENU key in remote control to select B-GAIN, and adjust y=343±10F
D. Adjust R/G/B-GAIN, make sure the final value x=335±10FL, y=343±10FL,
Y=30FL.
(4) When you want to go ahead for next color temperature setting, press the factory key in remote control. For each color temperature setting, please repeat the procedure 1-3. Only x and y value will change in different color temperature mode (in 6500D, x=313, y=329; in 9300K, x=280, y=300; in 13800K, x=270, y=270), Y value are all the same in each color temperature mode (dark level
Y=1.5, bright level Y=30).
Universal Remote - Service Mode - TV Factory menu codes
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Enter to LCD GTW P42M102 TV Service Menu mode Written on April 02, 2015