Question about MPC Computers Envision EN 7500 17" Flat Panel LCD Monitor

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Need to purchase new power suppy also just before power supply went bad i was having an audio issue. Low volume from monitor.

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Not much you can do with the old power brick to check it. They are all usually sealed in there boxes. Yousure the supply is bad? How did you get to that conclusion. The audio is just usually just an external set of speakers inside the monitor. However if they are boosted then an amp may be inside the monitor. taking power from the supply brick. Is that what your conclusion of a bad supply is from?

Posted on Aug 04, 2010

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Posted on Jan 02, 2017

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Bought a second hand Sceptre x24wg-naga, now has has sreen on sustain failure, When powered up the power remains on but picture is only on for a few seconds before going out while still showing power...


It can be component (caps) failure in the power supply, that will be the first palce to look. As you can see in my failed LCD TV and monitors albums (you can se SCEPTRE albums).
Worst case will be bad lamps assembly due to poor sodlering works.

Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors: http://s807.photobucket.com/albums/yy352/budm/

Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague

Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.

Or www.digikey.com just make sure to use caps with low ESR, 105c, high ripple current, long life rating such as PANASONIC FM or FC series.
Please leave rating if it helps.

Jan 12, 2011 | Sceptre X24WG-NAGA Monitor

1 Answer

My speakers have very low volume. I have everything set to the highest level and you can just hear them. What to do?


test the audio amplifier with a test signal starting from the output to the preamp and SIF. check the voltage to the audio output IC , if low check the power supply.
check the speakers .

Sep 28, 2010 | Cornea CT 1700 17" Flat Panel LCD Monitor

1 Answer

My LG Flatron 1710S computer screen doesn't have any power. Sometimes the power light will start flashing but most of the time it stays blank.


This is a common issue, the power supplies in LCD monitors fail prematurely. (if your monitor has an internal power supply) , Double check all your power connections, but it sounds like the internal supply is toast, (its a simple capacitor replacement to fix, but cost to do this job seems to always outweigh a new monitor purchase) sorry to be the bearer of bad news.If you find my answer helpful albeit poor news, please use the thumbs up feedback.

Aug 26, 2010 | LG Flatron L1710S 17" LCD Monitor

1 Answer

I turn my monitor on and I see the display breifly


hi. it sounds like the power supply has gone bad... try to purchase a new power supply cord..

thank u
rate me

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2 Answers

Monitor problems with Gateway


The monitor is n't that bad its just like any other part of a computer its all in the quality control if they had sorry quality control on call for that day then the product shipped out sorry because it wasn't pulled by quality control. It all depends on the Quality control

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1 Answer

Not everything powers up when I turn on my disassembled computer


remove first the power suppy. if it is 24pin power suppy, shorten pin 15/16. that is the black and green,
if the fan of power supply rotates, then the P.S. is ok.
then return it to motherboard. check your connection with the motherboard power switch.
good luck

Feb 14, 2009 | Jetway (939AGP-OC) Motherboard

1 Answer

Dead power supply power across the bridge 700 volts across the main capacitor indicating smps is filtering


sounds like you have a dead switching suppy. On these sets the best way to trouble shoot the power suppy is disconnect the horizontsl output and measure it Is it shorted yes replace the fly and the transistor and resolder several cold joints in the horizontal drive curcuit as well as in the main switching supply. If the HOT not shorted then your gonna need a service manual unless you shotgun the repair. Good Luck

Apr 18, 2006 | HP Pavilion M703c 17 in.CRT Conventional...

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