Question about Compaq CV 735 (White) 17 in.CRT Conventional Monitor

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Replaced power supply and the monitor shows no signal and goes to sleep mode. Checked all connections, tried another monitor, any other suggestions?

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Hi!

It seems like the problem is within the computer, rather than the monitor itself...
Please follow my tips to resolve your problem.

Regards,
Pelu.

Posted on May 24, 2011

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Flatron W1943 sb monitor goes into power-saving mode. Does not display data.


If the monitor is displaying the "Power Saving Mode" signal to the monitor, then the monitors internal VGA board is functioning, so you can rule out a broken monitor. However I have seen monitors blow the internal fuse to the VGA board which causes a false "SLEEP" signal. If this be the case then it will require replacement of the fuse (usually a microfuse soldered onto monitor internal board) or most likely a monitor replacement.

To test:

Option A: you can connect another monitor to the monitor output on the back of the computer and see if you get a display. If this monitor goes to sleep, then it is likely that your Video card is malfunctioning. If you get a display, then it is definately the monitor.

Option B: If you have another computer, you can attempt to connect the monitor to another computer. Also most modern laptops will be equipped with monitor output, so if you have one you can check it. If the monitor sleeps, then it is definately the monitor. If you get a display, then it is definately the computer video card.

Hope that helps,

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Sep 17, 2012 | Computers & Internet

1 Answer

How to fix


tried to hooked up with other monitor just to ensure if the cause is your pc. if the monitor doesn't receive signal it will goes to stand by mode.

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I have my acer p205h 20 inch monitor hooked up to my tobshiba laptop and it works great except it will not go into sleep mode when laptop goes into sleep mode the monitor goes to there is not signal check...


Unfortunately, this is a standard problem, as when your laptop goes into sleep mode, it shuts off power to the secondary monitor, without giving it the signal to go into sleep mode. You could try digging around your settings, but most likely you'll just need to turn off the monitor when you're not using it.

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Power on and monitor goes to sleep mode


You need to try it on another PC, alos verify if the VGA cable is good. If nothing change, then you need to open it up, first thing to look for are the capacitors in the power supply. Look for cpas with bulging top/seal, see example of failed monitors here: http://s807.photobucket.com/home/budm/allalbums
Post back what you find so we can guide you further.

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Monitor goes into sleep mode...mentions no input ........tried rebooting and turning off power with no luck..then replaced cable connecting monitor to computer and still not working...


Connect the monitor to another computer (laptop?) to see if the monitor works at all.

Try connecting another monitor to your computer, to verify that your computer is emitting the correct video signals.

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Hp w1907 monitor does not detect any input and goes into sleep mode. checked wiring and connections -- looks normal. No trouble until today.


try to connect the monitor to another working PC, or to a laptop monitor socket, if it works there... then there is a prblem on you PC display driver or display card inside your PC, try to connect another working monitor to you trouble PC and check if that works.

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Turn my computer and it starts up normally, however, the monitor never turns on. When I manually turn the monitor on it displays the Acer logo and then goes to the "no signal" screen for a few seconds...


Try the monitor on another computer or a friends computer, if it is working you may need a new graphics card.
Try the monitor first, if your unsure take the machine to a local computer shop for advice, or if you have a computer geek nearby ask them.

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Going to Sleep


Due to the power surge, it is highly possible that the monitor was given a boot by your computer on it's way out.

This will short out a very small transistor inside the monitor on the video board and in turn, then monitor cannot see that there is a signal so goes to sleep.

If you get brave enough to venture inside the screen, then check near the cable input. The transistors are only around 3mm and have 3 legs (two one side and one in the middle on the other).

If you find anything like that burnt (get a magnifying glass) then replacing the board is the easiest option. Just don't be tempted to wipe the board before you look at everything very closely, you may wipe away the tiny bit of evidence you are looking for.

Hope it helps =)

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Going to Sleep


got the same issue

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Monitor doesn't work


I'd try this monitor on a spare computer. It sounds like the video card (motherboard integrated or otherwise)is not putting out any video information or missing sync signals. The monitor must receive these signals or it will go into standy/sleep mode. If the computer has integrated (on motherboard) video, check your bios settings to see if it is properly enabled. If it has a slot video board, then try a different video board. Your present board might be dead. Another possibility is a bad cable connection. check the connectors for bent pins. Assuming the connector is the standard HDB-15, it is easy to bend a pin over.

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