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Question about BenQ T701 TFT 17" LCD Monitor

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Benq t701 flat screen no display

Hi i have a benq t701 there is power going to the board but no display if i look clos i can see a flicker could the ballest gone and if so how can i repair or replace if.

Posted by baron saemdi on

  • Anonymous Oct 21, 2008

    same problem

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Anonymous

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  • 26 Answers

See this post
http://www.fixya.com/support/t155971-benq_t701_lcd_monitor

Posted on Dec 16, 2007

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Related Questions:

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1answer

Flickering screen

hi. you problem maybe in power supply unit. couple capacitors bad between power supply to inverter board. good luck!
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I brought my benq t701 to a repair shop to due blackout screen. But due to lack of parts, it was not repaired but all 6 transistors were removed from the PCB. Please show me where these transistors were...

go to esservice.com and get the manual from there will be easier as the transistors are directional i believe they are 2sc5707s from memory but you will need to check the transformers and the 2 filter caps on either side of them as if they are faulty will blow transistors.
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Flickering dots on Benq PB6200 projector.

it's not the lamp. if you've replaced the cords and still have the problem, reset the settings to factory default to make sure the resolution matches. if still not ok, there may be an issue with the main board.
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I have a benq t701 with power problems

faulty power board... possibly caused by blown capacitors..
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Tech problem

If you can, check the display settings.
Some graphics cards have an option for dual monitors.
Sounds like the card is seeing only 'monitor 2'.
If you have more than one monitor port, try plugging both monitors in.
If no luck, you may have to boot into BIOS at power-up and configure from the menu.
But be careful not to fiddle with unknown settings in BIOS - this is the 'nerve center' of the computer and could cause total digital catastrophe.
If not sure, don't.
Or get expert to help re-configure.
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Monitor

Hi Abadir, It really sounds like your back light has bit the dust. I can't always see stuff on the LCDwhen the back light is out. Check in with LCDrepair.net for parts, and repair of your monitor. I truly hope this helps. Good luck.
0helpful
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Power ok but No Display

see this one
http://www.fixya.com/support/t155971-benq_t701_lcd_monitor
5helpful
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Benq T701 LCD monitor

I had a similar problem: the backlight on my Benq T701 only functioned for a couple of seconds every time a turned the monitor on and then the backlight switched off (sometimes in two stages). An electronics guru at work said with those symptoms the transistors rarely were the problem and I just needed to resolder the connections of the high voltage coils onto the PCB. On visual inspection those solder connections seemed ok, but when I tried to reflow the existing solder at one connection I spotted the problem: just a thin surface layer of solder was present and I had to add solder to fix the problem. The 4 coils each have 6 leads on one side and 2 on the other. I only soldered the connections on the side with 2 leads. In just 30 minutes and without buying parts the monitor is now up and running again.
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No display

if your monitor is not connected to a pc, then it cannot find a vga signal input and therefore go into power saving mode, which is indicated by the orange light, but as soon as you connect to the pc and power on the light will go green and the monitor will power up.
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