Question about NEC AccuSync 120 CRT 21" Monitor

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Help me with ma monitor

My monitors power is dead,i mean it the power led does not come on at all

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Being a 21" CRT monitor (old tube type) it is going to be cheaper to buy a new LCD flat screen than to fix this one. Best bet if you do want to fix this, is to take it to a tv repair shop and let them work on it. You have not given enough information to give a good educated response to what might be causing this issue. Good luck.

Posted on Aug 20, 2007

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My Acer LED monitor is black unresponsive and has an unchanging purple power button. What is causing this and how can I fix it?


no PC stated,
and what does this mean.
"showed nothing."
2nd monitor ,did it work on not? please be clear.
I guess you mean the 2nd monitor works on this unstated PC.
but not the 246 ,as it is dead. or shows odd things? no photos off odd presented,
246, is 6 years old today.

ok , PC dead, but is it silent, it must blow 2 fans desktop.
ok, does the GN246HL fail on other PCs.
if not it is good.
if yes,it is bad, simple no?
all test monitor directly to a PC, DVI jack.
this monitor is only 6 years, old and is LED backlighted


what does this mean?
Dual Link DV-I.??????????
this monitor has only one DVI port (and vga , and HDMI)

now test 1.
NO pC connected
power on the monitor,
it shows LOGO sign , ACER logo message seen for 6 long years but today is dead.
Now turn it on again and push menu button, on monitor.
you get OSD screen windows, from the monitor brain and it works
and looks good , but only for 10 seconds at power on.
the 10 second rule on OSD, means you must do that fast.

the controls are in the manual
page 22

https://www.manualslib.com/manual/380485/Acer-G246hl.html?page=19#manual

May 13, 2018 | Acer Computers & Internet

1 Answer

Samsung syncmaster 920nw 19 goes black after 2 seconds and power led is on


Hi,
Its due to bad power supply. open your Led and remove old bad capaster and replace with new with same value. hare is link you can follow. http://www.youtube.com/watch?v=y1VbrAYc-d8

Jun 15, 2012 | Samsung 920NW Monitor

1 Answer

Pc not booting


If you hear the CPU fan turn on that doesn't mean the CPU itself is working. It can be only that the motherboard is getting power. Check all your connections such as monitor and peripherals and re-connect them. If you still don't get P.O.S.T. or ANY letters or boot options on your screen then your CPU is dead. (unless your monitor is bad)
Another easy diagnostic is using your ears. For example the pitch sound of the fan in some motherboards tends to lower and then increase because it's reading of the hard drive. This means your CPU is ok but either your graphics connection is bad or your monitor is.

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1 Answer

Find technicaiy solution


That means your monitor has faulty or dead capacitors. The capacitors in your monitor work to hold down power from the source long enough for proper display on the screen. Bulged or leaking capacitors will only hold power for about 2 - 8 seconds and the looses it. The only solution is to replace those fault capacitors with new ones. Get a computer technician to open up the monitor and change the capacitors. That is the only technical problem you asked to know. Good luck

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1 Answer

Dell monitor e17s fbp.. wont turn on


Flashing power LED light means you may have shorted (Emitter to Collector) out transistors (c5707) or bad fuse (fuse has high resistance) PF751. Those are what you need to check. see pictures here: http://s807.photobucket.com/albums/yy352/budm/Dell%20E173FPb/

http://s807.photobucket.com/albums/yy352/budm/Dell%20E15x%2017x%20series%20PWR%20INVERTER%20BD/

Post back what what you find so we can guide you further.

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Samsung syncmaster 171v. It may have experienced a power serge. It will not power up, no signs of life (no leds lit). Is there a fuse in the chassis? Is there a reset on the monitor? Thank you for the...


Very Interesting. I have the same monitor. No problems for the 3 or 4 years that I've had it and last week I got the same issue. Came in and my monitor was dead, doesn't power up.

Oct 15, 2009 | Samsung SyncMaster 171 V 17" Flat Panel...

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Longitudional lines on my monitor...


It could be your power supply, your monitor, your graphics card or a software problem.
Try to reinstall your graphics card drivers, if that doesnt help try another monitor.
If that also doesnt help I suggest you temporarily install another graphics card. If that also doesnt fix your problem, you should go buy another power supply.

Feb 18, 2009 | HP nVidia GeForce 8400 GS, DH PCI Express...

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Doesn't respond


Compaq MV 540 (old dog monitors) DEAD 100% DEAD.
OSD dead too. it seems.
built in year 2000, its 17 years old, and you fix things that old
why> why do that, used LCD can be had for 20 bucks.
why slave over any relic CRT like this,,, for a musiem??
using the VGA cable
the monitor will go to sleep, lacking any PC sync lines Vert/horz
by design per VESA rules on that !
step one , use a PC.
set the PC up to do the max resolution on the CRT
some PC cant do that, (new PC)
im reading your users guide now, 1sec, google , hit.
first force the PC to 1024x768 resolution and 60 vert. refresh max.
now the CRT can work an not any of above number higher .
see? use working monitor to do that FIRST.

now plug in the vga,cable last. on the monitor under test.


power led means
green = power ok
amber or yellow are sleep or standby.
so that means, there is no sync.
or if the OSD works (does it>) turn the silly sleep timer off in the monitor. via OSD .

the operators guide, tells you to go to PC safe mode.
this mode sets reso real low. 800x600 and all monitors work there.
no sleep timer inside monitor i can find.,

lots of ways for any CRT to fail even the CRT itself
(loss of sweep)
loss of cathode video drive
the VGA card inside, can fail. killing dead all cathod drive.
the power supplies or regs inside can fail.
the HV can fail. 10,000 volts (dont touch it if long life is good)
some survive, or fly back hit head on wall and crush skull,
seen it and done it so,,, there you go.(ripped gash in arm once)
the 2nd anode is very high voltage, avoid it, and win,.
respect it.

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8 Answers

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if the monitor green led is blinking continuosly the follow the steps remove the cable of the monitor which is connected to the CPU and watch the monitor it should show a message ( no input signal or cable disconnected, that means your monitor is OK the problem is with your CPU . try this and let me know

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