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Monitor will not come on. Power light flashes

The power light flashes on and off. The monitor will not come on. I am looking for a schematic of the power supply.

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  • pontelemon
    pontelemon May 11, 2010

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  • 41 Answers

Are there any lights on your PC? If not then you are going to have replace you power unit. I would not attempt to repair because a)they are cheap to replace and b)they contain a lethal charge.

Posted on Apr 14, 2009

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Posted on Jan 02, 2017

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1 Answer

Why is the power light on my Acer monitor flashing?


See this.. http://www.techsupportforum.com/forums/f25/acer-monitor-is-blank-and-power-light-flashing-green-318760.html
Also, here's some tricks I would try...
1. Verify the monitor's power cord is plugged firmly into the wall outlet and the back of the monitor.
2. Verify the monitor cable is firmly connected to the computer and the monitor.
3. Verify that you have turned the monitor power switch on.
4. If the power light on the monitor is not on, test the wall outlet (plug in a light or something you know works).
5. If the power light on the monitor is not on, try a different power cord.
6. If the power light is on and yellow or orange or flashing, but nothing displays, or the display is incorrect, borrow a monitor from a friend. If that works, your monitor probably needs replaced.
7. Also, you could try your display on a friend's computer. If it doesn't work, your monitor probably needs replaced. If it works properly on your friends computer, the problem may be with your computers video output port, motherboard video chip (or video card, if you have one), or drivers.
Good luck.

Jul 26, 2014 | Acer Computers & Internet

1 Answer

Service Manual with Schematics for Princeton VL1916 LCD Monitor


this issue might not be because of your Monitor. Anyway, I can only provide manual to this legacy product of princeton if you want...

Sep 06, 2007 | Princeton Digital VL1916 19" LCD Monitor

1 Answer

Monitor is slow coming on then when on website clicking out of second tab flashes black


1. Verify the monitor's power cord is plugged firmly into the wall outlet and the back of the monitor.
2. Verify the monitor cable is firmly connected to the computer and the monitor.
3. Verify that you have turned the monitor power switch on.
4. If the power light on the monitor is not on, test the wall outlet (plug in a light or something you know works).
5. If the power light on the monitor is not on, try a different power cord.
6. If the power light is on and yellow or flashing, but nothing displays, borrow a monitor from a friend. If that works, your monitor probably needs replaced.

Mar 26, 2014 | Acer AL1716 17" LCD Monitor

1 Answer

L1706 monitor power light flashes green/amber


A flashing power light often means the monitor isn't getting a signal. When you turn the monitor off and back on, do you see the brand logo for a few seconds? Try plugging it into a different computer to see if it comes on.

If plugging it into another computer doesn't work, it may be a bad power circuit in the monitor. A common problem with monitors is the capacitors going bad. If you're handy with a soldering iron, you can try replacing them yourself. Look here for pictures and instructions: Fix an LCD Monitor

Oct 18, 2010 | HP L1706 17" LCD Monitor

1 Answer

Monitor is black,power line flashing.


Flashing power light often means the monitor isn't getting a signal. When you turn the monitor off and back on, do you see the viewsonic logo for a few seconds? Try plugging it into a different computer to see if it comes on.

If plugging it into another computer doesn't work, it may be a bad power circuit in the monitor. A common problem with monitors is the capacitors going bad. If you're handy with a soldering iron, you can try replacing them yourself. Look here for pictures and instructions: Fix an LCD Monitor

Aug 15, 2010 | ViewSonic VX924 19" LCD Monitor

1 Answer

My monitor green light keeps flashing. I cannot get a stead display.


Flashing power light often means the monitor isn't getting a signal. When you turn the monitor off and back on, do you see the viewsonic logo for a few seconds? Try plugging it into a different computer to see if it comes on.

If plugging it into another computer doesn't work, it may be a bad power circuit in the monitor. A common problem with monitors is the capacitors going bad. If you're handy with a soldering iron, you can try replacing them yourself. Look here for pictures and instructions: Fix an LCD Monitor

Dec 23, 2009 | ViewSonic VX924 19" LCD Monitor

1 Answer

Dim monitor


Hi

You just bought a new power supply for the monitor? Did you set the B+ voltage to the correct settings. Rebuilt power supplies for CRT monitors are not set correctly at the factory. Use your schematic to determine the proper B+ and then set this under load.

Thanks

Jul 21, 2009 | Toshiba Tekbright 15" CRT Monitor

1 Answer

Monitor L17AMTN flashes WinXP desktop, then blanks.


dmellman, Before you open it up, try this! With fully booted pc and WIN DESKTOP screen up, reconnect the L17AMTN . Have a bright flashlight handy so that when the lcd screen flashes on for 1 second and then goes dark, you will want to check to see if the desktop remains on the screen even though you think it went away. Shine the light 1-2 inches from screen at different angles. Has the desk top completely disappeared or is it still being displayed? Do you know about Cold-Cathode-Fluorescent tubes and their Inverter type power supply? I assume that this unit also has a "lay on floor black box switch-mode-power-supply" that is supposed to supply raw 12v-14v dc to the monitor? This symptom is typical of lcd monitor power supply failure, and or inverter board failure. Not to mention the fact that the CCFT's could be a bit tired from use. YOUTUBE has some videos on taking apart lcd monitors. also do search on web for "bad caps on lcd boards" or "bad caps in lcd monitors". I should think that this Tatung might suffer from swollen cap-itis. get back to me with results of your investigation. Im louie12fix on fixya or lmistyrel@aol.com just nrth of Windy City

Apr 17, 2009 | Tatung L17AMTN 17" Flat Panel LCD Monitor

1 Answer

Dell E151FPp LCD Monitor


Next time you reset, check both the monitor settings and your BIOS settings for wake up

Feb 24, 2008 | Gateway FPD2275W LCD Monitor

1 Answer

Hp f1703


welcome to first time English dot com ! really !
this is texting, it's what ever you want.
so you have a dead monitor? does the OSD work.
that is first, OSD if the ON SCREEN display fails the monitor power pack is dead or the monitor is dead,
monitor schematics can be hard to find
but 1second google search and i see this.
learn to use google?
https://www.manualslib.com/manual/803893/Hp-Pavilion-F1703.html?page=18#manual

no symptoms posted, or full English , here ill use google translate for you (so can you, dig?)
OMG the Spanish actually has facts.

"THANKS FOR ME AND FORGIVEN FOR MY ENGLISH !!
P.S. It takes a second to turn black and it seems that something causes excess consumption (low voltage 3 V.), then it is dark and the minute goes to amber, the led."


What does OSD do.
did you know a monitor is only $50 at walmart.
id bet it costs way more to fix any monitor than that.
parts, labor, shipping and bam broke.

the monitor is covered here 100% but no schematics. sorry.

https://support.hp.com/us-en/product/HP-Pavilion-17-inch-Flat-Panel-Monitors/472527/model/324214

read the words, my monitor is blank there? it tells you step by step what to do. well advised to read that or translate it.

the monitor has 4 buttons on the right
1,2,3,4
button 1 is OSD menu, this must work all the time with power on.
even with no PC connected. it works.
if not the power supplies inside the monitor are dead. or the power pack is dead, if it has external pack we test that next.

this monitor has LCD back lamp CCFL with inverter.
CCFL or well known to die fast or go dim or ugly yellow.
Id put this think in the trash and get a LCD with LED black lamps
in a heart beat. and never look back to CCFL junk again. IMO

id did not read your manual for you, just skimmed it,
but if it has a power pack id check that first.
then with CCFL (they sold the monitor over 17 years ago)
IF the screen goes back, we use a FLASH light, on the screen
and if you now see DATA of any KIND< the CCFL is bad.
in non geek that is "BAD BACK LAMPS" and supplies to it.


as seen here, ( if this works the back lamps are toasted)

http://pcdied.com/flash-glow-magic.JPG

Jun 17, 2017 | HP Pavilion F1703 17" LCD Monitor

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