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