Diamond View DV172, Service Manual

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DV172 LCD Monitor Service Guide
Alignment procedure
2
1. Alignment procedure (for function adjustment)
The list of necessary alignment for a LCD monitor:
Items Description Remark
1 Timing adjustment Preset timing
2 Auto color balance adjustment SVGA2 60Hz
3 Color temperature adjustment C1, C2 & C3
4 Writing EDID file Analog and Digital
A. Preparation:
1. Setup input timing to any preset modes, any patterns.
2. Enter factory mode (press “EXIT” & “ENTER” at the same time, then press “power” button to turn on monitor).
3. Move blue cursor into “BURN IN MODE” tag and select “YES” to enable burn-in mode.
4. Power off the monitor, then power on again.
5. Setup unit and keep it warm up at least 30 minutes.
B. Timing adjustment: (Analog only, it’s no need for DVI-D input source)
1. Enter factory mode (press “EXIT” & “Enter” at the same time, then press “power” button to turn on monitor).
2. Select timing from figure-1. The timing marked with star sign (*) have to be adjusted with Analog signals from
Chroma video pattern generator..
3. Press AUTO key to run “AUTO adjustment” function.
4. Clear user area in EEPROM.
5. Check the phase of the image; if phase is not perfect adjust it to the best condition.
6. Adjust the settings to following values:
CONTRAST = 55
BRIGHTNESS = 90
OSD TIME = 20
VOLUME = 20
COLOR = USER
7. Press “EXIT” key until the “SAVE” shows on the OSD to save factory parameters and turn off the monitor power.
8. Turn on the power enter user mode.
C. Auto color balance adjustment: (Analog only, it’s no need for DVI-D input source)
1. Setup input timing SVGA2 (800x600@60Hz), pattern 1(crosshatch pattern with white color frame) with Analog
signals from Chroma video pattern generator.
2. Enter factory mode (press “EXIT” & “Enter” at the same time, then press “power” button to turn on monitor).
3. Move blue cursor into “BURN IN MODE” tag and select “YES” to enable burn-in mode.
4. Set color pointer to USER mode
5. Press “
▼
” button to do white balance for auto color balance adjustment.
D. Color adjustment: (Analog only)
1. Setup input timing to any preset modes, pattern 41(full white color pattern) with Analog signals from Chroma video
pattern generator.