Eiki EK-815U Service Manual page 53

3. ADC calibration
Note: After replacing main board, please execute ADC
calibration.
(1.) PC Calibration
Equipment: - Video generator (output level: 700 mv)
Test signal: - Timing:800 x 600 @60Hz
Test pattern: - Grays 16.
Criteria - Check if the ADC calibration status has
changed from Doing to Done.
Procedure - On the IR remote keypad, press Menu >
Size & Position > Size Presets > Full Size.
- Enter factory mode.
- Select ADC Calibration > Help.
- After a few seconds, the ADC calibration
status will change from Doing to Done.
(
2.) Video Calibration (For BNC port)
Equipment: - Video generator (output level: 700 mv)
Test signal: - Timing:1280x800@60Hz(WXGA)
Test pattern: - SMPTE BAR.
Criteria - Check if the ADC calibration status has
changed from Doing to Done.
Procedure - Input the signal from BNC port.
- On the IR remote keypad, press Menu >
Size & Position > Size Presets > Full Size.
- Enter factory mode.
- Select ADC Calibration > Help.
- After a few seconds, the ADC calibration
status will change from Doing to Done.
1920x1200@60Hz(WUXGA)
Grays 16
SMPTE BAR
EK-815U
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