Acer LCD, "No Signal" ongelma

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Acer LCD, "No Signal" ongelma

uutta X241W LCD:tä alkoi vaivaamaan silloin tällöin ilmestyvä No Signal viesti keskelle kuvaruutua, kuva kuitenkin toimii, mutta viesti ei poistu ennenkuin katkaisee virran.

Aikani Googleiltua löysin ratkaisun, ongelma näyttää olevan tyypillinen monille Acer näytöille,


Acer Field Service Bulletin

DATE: 04/03/08 NUMBER: mn_029

SUBJECT:
REVISED - The message "No Signal" sporadically appears on the screen.

AFFECTS: X241 monitors ET.L990B.029


ISSUE:

This is an update to the document original published 9/19/07
While the X241W monitor is in use, it might show "No Signal" on screen abnormally.
Sometimes, the monitor may still continue to display video.
Other times the monitor may be go black. For some customers, the problem will
correct itself in a minute. These problems often occur during the first 20 minutes
the monitor is powered on.

SOLUTION:
Short term #1 – Unplug the monitor to reset the video controller.

Long term #1 - The main board firmware can be reflashed to a newer version of
firmware by an Acer authorized monitor repair depot. The latest firmwares are listed below.

for monitor with s/n version “00” and ”10” FW = WDTD-D1AP0 V1.03
for monitor with s/n version “12” FW = WDTD-D1SP0 V1.02
for monitor with s/n version “13” FW = WDTD-D2AP0 V1.03

ACTION REQUIRED:
Confirm the firmware has been updated prior to returning the monitor to the customer
or to stock.
When an Acer service repair technician updates the firmware, they should record that
the part IN-MONITOR was used.

SPECIAL TOOLS
6K.ISPVE.001 Tool Kit with a corresponding DB-15 and Serial data cable.
USB-A to USB-B cable for power.

PARTS REQUIRED
Replace main board if firmware update does not resolve the problem. See spares parts list for p/n.
 
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