The monitor powers on but no logo just ablack screen. When I shut off computer the signal turns the green poer light to amber. But I dont know what could cause my screen to not show anything. Make : BenQ Model: Q7T3 Product number FP73I
I wonder if this has a backlight in it. Most/or all LCD flatpanel displays use a backlight in them, namely a small florescent tube (a tiny version of the office florescent lights). If this is burn't out, or the little power supply which runs it dead, you will have a black display. The image is actually there, you just can't see it, except perhaps faintly when external light hits it just right. The display must be disassembled to check this light. If you have tech savvy, and some equipment, voltmeter, maybe an oscilloscope, you could check it out. Where to get a replacement lamp? Google it... perhaps the manufacturer.
If the 2SC5707 transistors have failed short, there's a 3A fuse PF751 that will probably also be blown.
Check your computer's power supply. A power supply that is shot will cause the symptoms you have.
2,646 views
Usually answered in minutes!
I have already replaced cables both power,and monitor inthe event that one was damaged. I still have no picture, power indicator light is green while machine powers up but no image(black screen) still. this monitor is manufactured in sept 2000, how or why would this sort of problem occur and how do I prevent from happening again
I Have Benq FP767 LCD and the failure is No Picture at all only power Botton was amber when computer is OFF and Blue when computer is ON...
I disassymbled the LCD and found one bad transistor P/N C5707 and I already replace a set Four (4) transistors which controls the inverters...
Unfortunately Still I have the same problem no change please help
WHen I turn my benq fp767 on, the image briefly shows up and it immediately goes into standby for about a second, then the image shows and back into standby, ad infinitum. I would imagine that it is a power supply problem or preferebly a dud transistor somewhere.. does anyone know of a circuit diagram or whatever so I can have a look?
When computer is turned on the Acer Flat Panel LCD monitor starts up but within minutes it starts to turn itself off and on changing the green indicator light to amber. This problem persists even after the computer is turned off. Monitor keeps turning on and off. Any suggestons. The system was brand new in 2005-2006.
I have a lcd monitor and I needed to turn power off to house. I have a battery backup on my pc and monitor. When I came upstairs to turn everything back on my monitor powers up but no picture. I was wondering if there is a fuse in the monitor that might have blown. Please help.
I Have Benq FP371 LCD and the failure is No Picture at all only power botton was green.
I disassymbled the LCD and found one bad transistor P/N C5707 and I already replace a set Four (4) transistors which controls the inverters...
When I turned the on/off switch on, the back light flashes on the screen for a spit second.
I measured the high tension to the lamps, it is also noticable for a split second.
I checked all the transistors on the perimeter, they are all OK.
Do you have any more suggestions to solve my problem?
Kind Regards
Bram
the only difference is that mine is a Benq fp737- but it stays on for like five seconds then goes black. the led is still green so its getting power and a signal the screen is just blank
Monitor power light (green/amber) seems to indicate monitor turning on and off. No image however. Not even the "No Signal" indication. Just a dead black screen.
Had a power cut and now there is no light or power getting to the monitor
×