Hi, I have a problem with my monitor. I would appreciate if you could help me with this or just provide me with information which chip device should I exchange. The problem is following :
After I connect the monitor, whether via DVI or VGA the screen stays blank, after 40 minutes it starts to flash and finaly after 50 minutes it works fine. When I turn my PC Off the monitor switches to standby, but when I turn it on the next day On, then I have to wait the same 50 minutes until the monitor starts again. Another thing is that when I unplug the power cable of the monitor, that means when I cut it completely off the power and without connecting it to my PC plug it in, the small led-diod that is positioned on the power button starts to flash and then it goes off and stays so until 50 minutes.
Please, I would realy appreciate any help with this problem.
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Re: Problems with monitor startup XA7-17i
Hi, It's not a problem with your graphics card, or the cable, but a problem with the monitor. It sounds like there is a blown capacitator on the inverter board within the screen. The inverter board is the circuit board that the backlight is mounted on. If you were to open up the monitor and look at the inverter board, you might see that one or more of the capacitators are 'bulging' on top, or burst/leaking, and you could snip these off and solder in replacements. You would need to obtain schematics for the circuit board to be sure of purchasing the correct one(s).
If you aren't too comfortable with tackling this sort of thing, I would have to say you're best bet would be to try another monitor. :(
I suggest using another monitor and having a go at repairing the broken monitor yourself.. it'll be really satisfying if/when you succeed..
Sorry to be the bearer of bad news, but at least you know what the problem is now..
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First of all, try using a different monitor cable. If the problem is still present, make sure that your monitor's image is correctly adjusted. Most monitors provide an 'auto adjust' function. This page can help you find out whether your monitor's clock and phase are correctly adjusted: http://www.lagom.nl/lcd-test/clock_phase.php It also provides different test images that can help you with locating your problem. Hope is helps, cheers.
TVs and monitors usually incorporate some kind of startup circuit to provide drive to the horizontal output transistor (HOT) until the flyback power supply is running. Yes, TVs and monitors boot just like computers.
There are two typical kinds of symptoms: power on click but nothing else happens or a tick-tick-tick sound indicating cycling of the low voltage (line regulator) but lack of startup horizontal drive.
Check the voltage on the horizontal output transistor (HOT). If no voltage is present, there may be a blown fuse or open fusable resistor - and probably a shorted HOT.
However, if the voltage is normal (or high) - usually 100-150 V, then there is likely a problem with the startup circuit not providing initial base drive to the HOT.
The startup circuits may take several forms:
Discrete multivibrator or other simple transistor circuit to provide base drive to the HOT.
IC which is part of deflection chain powered off of a voltage divider or transformer.
Other type of circuit which operates off of the line which provides some kind of drive to the HOT.
The startup circuit may operate off of the standby power supply or voltage derived from non-isolated input. Be careful - of course, use an isolation transformer whenever working on TVs and especially for power supply problems.
Note that one common way of verifying that this is a startup problem is to inject a 15 kHz signal directly into the HOT base or driver circuit (just for a second or two). If the TV then starts up and continues to run, you know that it is a startup problem. However, this is a risky procedure for both you and the TV.
I have also seen startup circuits that were designed to fail. Turning the TV on and off multiple times would exceed the power ratings of the components in the startup circuit. Some Zenith models have this 'feature'.
When this situation exists, it could be that the circuit is not providing the proper drive or that due to some other circuit condition, the drive is not always sufficient to get the secondary supplies going to the point that the normal circuits take over.
You can still check for bad connections - prod the circuit board with an insulated stick when the problem reoccurs.
ok here's what i can suggest. Two things. 1. Check your power settings by going to the Control Panel and then going to Power Options. Take a look at the power schemes..specifically the option where it says turn of monitor...you can select the "Always On" power scheme....if this doesn't do it... 2. Right click on your desktop and click on Properties. Go to the Screen Savers and verify that the time before the screensaver comes on is not something ridiculous like 1 minute. You can just disable the screensaver if you'd like by selecting "none"..
I'm pretty sure you're dealing with one of those two problems.
HPw1907 monitor on "built up" computer. Processor is AMD Sempron 2800+(800)S754, Video card is Navidia, Albatron GF FX5500. Operating software is Windows XP home, SP 3.
Factory brightness setting is much too high. Each time that I restart the computer after shut down, I must reset the brightness setting. Immediately after startup, brightness is OK; after a few seconds, the monitor goes into auto adjustment, and goes back to factory setting and I have to reset.
You would have to allow the laptop to use the tv as a external monitor. simply right click on your desktop click properties in their just have a look around and it will show 2 monitors allow the tv as one
- did you check your monitor is working? - disassemble and assemble your hardware and properly installed but first you need to clean all parts. - when you try to test again disconnect the Hard Disk only try to make a display for safety. - make sure all parts is properly inserted.
Reboot the computer and start in safe mode.(Press F8 at start-up in WIN XP).Change display resolution to 800><600 and restart in normal mode.
Your original problem must be monitor hardware related ie some loose connection or dry solder on invertor /power board inside the monitor.
Please provide feedback and rate the solution.
Check your connections and make sure they are tight, and there are no bent pins. If everything seems ok, you might want to try plugging this monitor into a different computer or plug a different
monitor into yours to determine whether it's the monitor, the video card, or maybe the driver (doubtful on this as you state it seems to be bad somethimes on boot).
The VGA card or the VGA driver is not properly installed,perhaps.Try reinstalling the driver.
If you suspect the monitor brightness controls then try fiddling with them untill the brightness is good enough.
Check monitor cable also(VGA).