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2. Clock adjustment
Set the Chroma at pattern 63 (cross-talk pattern) or WIN98/95 shut-down mode (dot-pattern).
Adjust until the vertical-shadow as wide as possible or no visible.
This function is adjust the PLL divider of ADC to generate an accurate pixel clock
Example : Hsyn = 31.5KHz
From this formula, we get the Divider number, if we fill this number in ADC register (divider register),
the PLL of ADC will generate a clock which have same period with above Pixel freq.(25.175MHz) the
accuracy of this clock will effect the size of screen.(this clock was called PIXEL-CLOCK)
3.
Phase adjustment
Set the Chroma at pattern 63 (cross talk pattern) or WIN98/95 shut down mode (dot-pattern).
Adjust the horizontal interference as less as possible
This function is adjust the phase shift of PIXEL-CLOCK to acquire the right pixel data .
If the relationship of pixel data and pixel clock not so match, we can see the horizontal interference at
screen only at crosstalk pattern and dot pattern we can find this phenomena, other pattern the affect is
very light
4. H/V-Position adjustment
Set the Chroma at pattern 1 (crosshatch pattern) or WIN98/95 full-white pattern confirm above 2
functions (clock & focus) was done well, if that 2 functions failed, the H/V position will be failed too.
Adjust the four edge until all four-edges are visible at the edge of screen.
5.
MULTI-LANGUAGE function
There have 6 language for selection, press "MENU" to selected and confirm , press " LEFT" or
" RIGHT" to change the kind of language.
6. Reset function
Clear each old status of auto-configuration and re-do auto-configuration ( for all mode)
This function also recall 6500 color-temperature , if the monitor status was in " Factory-mode" this reset
function will clear Power-on counter too.
7. OSD-LOCK function
The OSD functionality shall be enabled or disabled by pressing the "menu" button and holding it for 10
seconds. Upon disabling the OSD, an OSD message of "OSD Lockout" shall be displayed for 10
seconds. When the OSD is locked and any OSD button is pressed, the OSD message "OSD Locked"
shall be displayed for an additional 10 seconds. When the OSD is locked, holding the OSD button for
10 seconds will unlock the OSD and display the main menu.
8. View Hours Total Operation and Hours Backlight On ( if not necessary , not suggest to entry Service
Mode,it is entered by pressing the power switch while the menu button is held in.)
Total Hours track and record the total hours that it has been powered up. This value shall be stored
in the system memory. The Hours Total Operation shall be incremented 31 minutes after power is
applied, and once each hour after that while power is still active.
Backlight Hours track and record the number of hours the backlight tubes have had power applied to
them. This shall be independent of the brightness or contrast controls. The Hours Backlight On shall
be incremented 31 minutes after power has been continuously applied to the backlight, and once each
hour after that while power is still applied to the backlight.
The Backlight Hours was used to record how long the backlight of panel already working, the backlight
life time was guarantee minimal 30000 hours, the maintainer can check the record only in Service Mode.
pressing the power switch while the menu button is held in will be in f service mode.
"Reset Total Hours " clear the powered up counter to zero hours.
"Reset Backlight Hours " clear Backlight Hours counter to zero hours.
4-3
MAIN ADJUSTMENTS
Power Key : Press to turn on or off the monitor.
Left Key : Press to perform automatic calculated CLOCK, PHASE, H/V POSITION, but no affect the color-
temperature
Left/Right Key : press to perform select function or adjustment.
MENU Key : press to show the OSD menu at the monitor or to confirm your function selection
The Divider number is (N) = (Pixel freq. x 1000)/Hsyn
Pixel freq. = 25.175MHz (from VESA spec)
8
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