Electrical Alignment; Preparation; Required Equipment; Warm-Up Time - Sony LMD-1420 Service Manual

2-1. Preparation

2-1-1. Required Equipment

. Luminance meter: If Minolta CA-210, CA-110 or
equivalent.
There is not available, make
adjustment by visually comparing the
LCD monitor with the reference
monitor that has already been
calibrated correctly.
. Signal generator: TG2000 or equivalent

2-1-2. Warm-up Time

Before starting adjustment, allow a warm-up of minimum
120 minutes to stabilize the backlight of the LCD panel.

2-1-3. How to Enter Service Mode

1. Press "MENU" to display the MENU screen.
2. Press the "LINE A" and "ENTER" buttons
simultaneously with MENU screen appeared to enter
the service mode.
2-1-4. Preparing the Power Supply and
Signals
1. Connect the supplied power cord to AC IN of this unit.
Power voltage: 100 to 240 V AC, 50/60 Hz
2. Input the composite signal from the TG2000 to this
unit to display entirely white screen.
3. Turn on the power of this unit. Select the signal that is
used for signal input.
LMD-1420/1410
Section 2

Electrical Alignment

2-2. White Balance Adjustment

Press "MENU" to display the user menu.
To move the cursor to select an item, use the Up ↑ or
Down ↓ key. To set the selected item, press the "ENTER"
key.
1. Move the cursor to "WHITE BALANCE" using the
Up ↑ key and press the "ENTER" key to enter the
"COLOR TEMP" layer.
2. After pressing the "ENTER" key, select "USER
SETTING" using the Up ↑ key and press the
"ENTER" key.
HIGH adjustment
Target value: x = 0.283
1. Set the signal level of the TG2000 to 80IRE.
2. Select "ADJUST GAIN" and adjust the GAIN.
Adjust using "G" and "B" while "R" is fixed.
3. Set the signal level of the TG2000 to 30IRE.
4. Select "ADJUST BIAS" and adjust the BIAS.
Adjust using "G" and "B" while "R" is fixed.
5. Adjust the tracking by steps 3 and 5.
6. Enter the service mode and move the cursor to "TEP"
using the Down ↓ key. Press the "ENTER" key to
enter the "COLOR TEMP" layer.
7. Move the cursor to "C-TEMP SAVE" using the Down
↓ key and press the "ENTER" key. Select "HIGH"
using the Up ↑ key and press the "ENTER" key.
LOW adjustment
Target value: x = 0.313
1. Set the signal level of the TG2000 to 80IRE.
2. Select "ADJUST GAIN" and adjust the GAIN.
Adjust using "G" and "B" while "R" is fixed.
3. Set the signal level of the TG2000 to 30IRE.
4. Select "ADJUST BIAS" and adjust the BIAS.
Adjust using "G" and "B" while "R" is fixed.
5. Adjust the tracking by steps 3 and 5.
6. Enter the service mode and move the cursor to "TEP"
using the Down ↓ key. Press the "ENTER" key to
enter the "COLOR TEMP" layer.
7. Move the cursor to "C-TEMP SAVE" using the Down
↓ key and press the "ENTER" key. Select "LOW"
using the Up ↑ key and press the "ENTER" key.
y = 0.298
y = 0.329
2-1