Question about BenQ T705 17" LCD Monitor

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Dark disp-lay purchased from freind yesterday worked fine all day today turns on displays about 5 seconds goes dark power lite stays green useing ati video card the unit is direct ac power

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Sorry mate,that is dreaded power interter board inside lcd,read about similar benq model dramas here http://www.electronicrepairguide.com/benq-t705-lcd-monitor-repair.html

Posted on Mar 03, 2009

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Replaced bulb yesterday worked fine. Today light will not turn on. projector turns on both lights green for 10 seconds, then power goes red and status blinks green for about 5 seconds, then status light...


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Then it goes to standby, red and off.

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Take the lamp out and check if all is OK with the 2 terminals in the connector, and the leads to the lamp are intact.

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Hi; I had the same problem. I know that sometimes devices require you to perform some type of '10-30 second' "hold" of one or some of its buttons in order to 'reset' the device, so to speak. So, having said that, try this:

1) Turn your monitor off (no green light) but leave it plugged in.
2) Leave it off for about 10 seconds.
3) Hold the [2] button on your monitor (the one to the immediate LEFT of your monitor's POWER button).
4) While holding the [2] button, now press and HOLD your POWER button.
5) Wait for your image to appear and STAY onscreen for about 5 seconds, then release both buttons.
6) Your monitor should retain its onscreen image.

Hope this helps! Good Day to all!

Kelvin W.

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Nov 22, 2007 | BenQ T705 17" LCD Monitor

1 Answer

Screen displays fine for a second, then goes blank


Dor, BenQ has a 3yr warranty on their monitors. I would contact their tech support and receive an RMA to return it for repair. It will cost you shipping out there but they will ship it back. I has a BenQ FP731 myself and it blew a capacitor inside that allowed the screen to stay on. Fixed it and had it back in 5-7 days. Good luck.

Aug 15, 2007 | BenQ FP737S-D 17" LCD Monitor

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Black screen after 5 minutes of use with Fujitsu PDS-420 plasma


Sorry to inform you my freind, but the main board has to be replaced in this beast. Could get expensive. there are no schematics and or componets listed to repair this module. Its a board level repair only. Try going to ptscorp.com, find their phone number, and see if they repair these boards. if not you will need to contact the manufacturer for replacement boards. good Luck Please do not forget to rate this thread.,

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