Acer AL1716W Service Manual - Page 5

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ACER AL1716W

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If the monitor sync processing circuits are

designed around the 3.3 volt logic family, then

the sync inputs must be 5 volt tolerant.

1.4.5 Sync Signal Loading

TTL input loading shall be equivalent to one TTL

input load. When logic 0 is asserted by a sync

input, the maximum current source from any

single monitor sync input to the driver is 1.6 mA.

When logic 1 is asserted, the maximum current

source from the driver to any single monitor sync

input is 400 mA.

1.4.6 Abnormal Signal Immunity

The monitor shall not be damaged by improper

sync timing, pulse duration, or absence of sync,

or abnormal input signal amplitude (video and/or

sync too large or too small), or any other

anomalous behavior of a graphics card video

generator when changing modes or when any

combination of input signals is removed or

replaced. Additionally, under these conditions,

the monitor shall not cause damage to the driving

source.

1.5 User Controls and Indicators:

1.5.1 Power On / Off Switch: The monitor shall have a

power control switch visible and accessible on

the front of the monitor. The switch shall have no

effect on the operation of the AC/DC converter.

Instead, it shall interrupt the DC supply to the

monitor.

1.5.2 Power Indicator LED: The monitor shall make

use of a LED type indicator located on the front of

the monitor. The LED color shall indicate the

power states as given in Table 1.

Table 1

Power-ON Mode

Power Saving Mode

1.5.3 On-Screen Display: The On Screen Display

system shall be used, controlled by a select

button (SELECT), a menu button (MENU), a plus

(+) button and a minus (-) button. If the buttons

remain untouched for OSD turn off time while

displaying a menu, the firmware shall save the

current adjustments and exit. Also, if the video

controller changes video mode while the OSD is

active, the current settings shall be saved

immediately, the OSD turned off, and the new

mode is displayed.

1. Product Specification (continued)

LED Color

Green

Amber

1.5.4 Key Function Overview: All functions are controllable

by OSD using five buttons including Power button,

Menu/Exit, Select, Left, and Right on the front bazel.

P o w e r B u tto n

T o tu rn O N o r O F F th e P o w e r.

M e n u /E xit B u tto n

T o e n te r o r e xit O S D M e n u .

S e le ct B u tto n

T o m o ve d o w n w a rd in th e O S D Ite m .

A ct a s D D C e n a b le a n d d isa b le sw itch in g H o t-

K e y w h e n O S D is n o t d isp la y.

L e ft B u tto n

C h o o se th e p re vio u s O S D M e n u Ite m .

T o d e cre a se th e va lu e o f th e p a ra m e te r in th e

a d ju st b a r, w h ich h a s b e e n se le cte d fo r

a d ju stm e n t.

R ig h t B u tto n

C h o o se th e n e xt O S D M e n u Ite m .

T o in cre a se th e va lu e o f th e p a ra m e te r in th e

a d ju st b a r, w h ich h a s b e e n se le cte d fo r

a d ju stm e n t.

A ct a s A u to A d ju stm e n t H o t-K e y w h e n O S D is

n o t d isp la ye d .

1.5.5 Menu Operation

Pressing the MENU button the first time brings up the

first menu level. The (MENU) button is used to enter

and exit the OSD menu.

1.5.6 OSD Function- Normal Mode

Icon

Item

Brightness

Adjust the background screen brightness by using backlight inverter.

Contrast

Adjust the image contrast by controlling analog signal gain.

Press 'Right' or 'Left' to select sRGB, Reddish, Bluish and User preset.

Color Temperature

Only when selecting User, you can make adjustment to the R/G/B

content, otherwise not.

Adjust the horizontal Image Size. When the value is increased, the

Horizontal Size

width of display image wider, and when the value is decreased, the

width becomes narrows.

To increase or decrease the snow noise of image. Adjust the delay of internal

Fine

clock to control the display focus.

Left/Right

Adjust the horizontal Image Position.

Down/Up

Adjust the Vertically Image Position

Press 'Right Key' to turn on this function. The Auto-Adjust will automatically

Auto Adjust

adjust H-Position, V-Position, H-Size and Fine to the optimal value, the whole

process takes about 3 seconds.

Select a language of OSD Menu. User can select language from 11 Languages;

Language

they are English, French, German, Spanish, Japanese, Simple Chinese,

Traditional Chinese, Korean, Portuguese and Russian, Turkish.

Factory Reset

Reset all users setting to factory preset value except language selection.

Select OSD Menu turn off time. when "30 seconds" is selected,

OSD shall be turned off automatically after 30

OSD Timeout

Seconds from the last key operation.

To move the OSD position horizontally on the screen. When the

'Right' Key is pressed, the OSD control menu to move to the

OSD Left/Right

right side of sreen.Likewise, when the 'Left' key is pressed, the

OSD control menu to move to the left side of screen.

To move the OSD position vertically on the sreen.when the 'Right' Key is

pressed, the OSD control menu to move to the up side of sreen.Likewise, when

OSD Down/Up

the 'Left' key is pressed, the OSD control menu to move to the down side of

screen.

Information

Indicates the current resolution.

Function Description