
14
LZ-800W
ADJUSTMENT
5. Gamma curve
adjustment
6. VCOM amplitude
adjustment
(COM-AC)
7. VCOM center
adjustment
(COM-DC)
• Input signal
Composite input
(10 step signal)
• Set to AC range
• Oscilloscope 0.5V/DIV
• Input signal
Composite input
(10 step signal)
• Set to AC range
• Oscilloscope 0.5V/DIV
• Input signal
Composite input
(10 step signal)
• Set to AC range
• Oscilloscope 0.5V/DIV
• Input signal
Composite input
(10 step signal)
• Set to AC range
• 2V/DIV
• Input signal
Composite input
(10 step signal)
• Set to DC range
(6) Adjust GAMMA2 VR305 so the 7th step from the pedestal is 3.1V
±
0.1V.
(7) Adjust BLACK adjustment VR300 so the 3rd step from the pedestal is
maximized.
(8) Adjust CONTRAST adjustment VR304 so the 11th step from the
pedestal is 3.7V
±
0.1V.
• Adjust COMAC VR303 so that the VCOM amplitude is as shown in the
diagram below.
• Adjust COMDC VR302 so that the VCOM waveform is as shown in the
diagram below.
∗
The flicker adjustment is done with the main unit procedure.
4.0V
3.1V
4.0V
MAX
4.0V
3.7V
8.5V
8.5V
±
0.1V
1.5V
±
0.5V
1.5V
GND
Item
Adjustment method/Adjustment value
Conditions
X35 Gamma Timing Controller Circuit Adjustment Specification
Power Supply Voltage: 14.4V