Question about Xerox XA7-17i 17" LCD Monitor

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Tft LCD monitor normaly start after 40 min takes-on

I have tft LCD monitor, 17 inch, model TFT 1780+,China,After takes-on any picture appear or no screen message, just some lines flashed on.Exactly afrer 40 min. takes-on normal picture will appear or normal message appear on screen.After then monitor works normally all time until take-off.Would you please be so kind to define this failure.I have no schematic plan and no troubleshooting manual.Much thanks of Janez Koncilija, Slovenia, My E-mail is: hrinov@volja.net

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

  • 317 Answers

SOURCE: compaq tft 5000 out of work

Your backlight probably went out and needs replaced.

Posted on Jul 31, 2007

SOURCE: Problem in TFT

THIS WAS VERY HELPFUL FOR ME, THANKS SO MUCH. I ALMOST THOUGHT I NEEDED ANOTHER MONITOR!!

Posted on Sep 24, 2007

  • 198 Answers

SOURCE: TFT Screen

Sounds like an inverter problem. If the power supply is internal replace the capacitors coming out of the voltage regulators. These are usually 1000mf and/or 470mf. If that doesn't do the trick look up the numbers on the 8-pin chips that drive the secondary transformers on the inverter to see if they are getting the right voltages.
Good Luck!

Posted on Feb 20, 2008

DCSE
  • 191 Answers

SOURCE: Problem in TFT

The OSD can be enabled or disabled by pressing and holding the Menu button on the front panel for 10 seconds. If the OSD is locked, the warning message OSD Lock displays for ten seconds.

  • If the OSD is locked, press and hold the Menu button for 10 seconds to unlock the OSD.
  • If the OSD is unlocked, press and hold the Menu button for 10 seconds to lock the OSD.

Posted on Jun 09, 2008

  • 1288 Answers

SOURCE: My 19" TFT LCD monitor

Power capacitor problem, needs taking to a qualified TV repairshop to have the capacitor replaced / checked

Posted on Dec 28, 2010

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