Acer AC707 Manuel de l'utilisateur - Page 10

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E-8

TROUBLESHOOTING

If your monitor fails to operate functionally, it may

be possible to correct the problem by making simple

checks as follows:

Problem

Blank screen

(*NOTE)

Display position

off-center

Display too small

or too large

Display too bright

or too dim

Refer to the operation instructions for your computer/

video adapter to ensure that you have the correct signal

output source for the monitor. Ensure that the switches

on the video adapter are set correctly for operation

with this monitor.

If the above steps fail to correct the problem contact

your dealer for servicing by qualified service

personnel.

Please remember that the monitor should be returned

for servicing together with the power cord.

* NOTE: You can easily distinguish if the problem

is on the monitor or on the computer by

using the monitor's built-in selftest

function.

With the monitor power ON, disconnect

the signal cable from monitor. If you see a

"NO SIGNAL" image on the screen, the

monitor is functioning properly, and the

problem is with the PC side or signal cable.

Check & Adjust

Monitor power switch,

power cord, signal cable,

or connector

PC power switch

Brightness & contrast

controls

Vertical centering &

horizontal phase controls

Vertical & horizontal size

controls

Brightness & contrast

controls

SERVICING

Refer all servicing to qualified service personnel.

Serious shock hazards exist within the covers

of this monitor.

D o n o t o p e n t h e c o v e r s u n d e r a n y

circumstances- there are no user serviceable

parts inside.

SIGNAL CONNECTOR

INFORMATION

Function

Red signal

Green signal

Blue signal

Ground

*N O T E

Red return

Green

return

Blue return

*NOTE: This pin is used for self test detection; at

PC side, this pin has to be connected to

ground.

**NOTE: This pin is used for PC99, at PC side, this

pin will supply +5VDC.

Function

** N O T E

Digital ground

Ground

SDA (DDC2B)

Horizontal

Synchronization

Vertical synchronization

& V C LK

SCL (DDC 2B)