Question about HP Media Center m7657c home PC - RC640AAR 19" LCD Flat Panel Monitor

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No vga input on working monitor

I replaced power supply and checked all cables and wiring in tower and on monitor. Video card is still good, I checked it on another computer. Does this sound like I need to replace the motherboard?

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  • HP Master
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Turned on computer (Pavilion a1657c), HD light operates, Monitor has little window saying:
HDMI Input: No Input Signal
VGA Input: No Input Signal
Recommended Settings: 1920x1080 - 60hz
Changed from the monitor that came with it (HP f2105 digital ouyput) to my Samsung analog and same message comes on dark screen.

Hope It's resolve all Your Computer Problem,
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Posted on Mar 21, 2014

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: HP L1706 LCD Monitor - 'No Signal' Problem

Try to replace your memory.

Posted on Feb 24, 2009

Inzanio09
  • 38 Answers

SOURCE: My monitor when powered up gives me a no input

Hey Beth

Sounds like you are in a bit of trouble!

Based on what you've told me, it looks like it might be a video card fault. However, a few things to check first are..

Make sure the VGA & DVI are secured tightly in to their slots, especially on the monitors as gravity can sometimes be a pain!

Use different cords, rather than the original ones you use. This is to eliminate the the point that the cords may be the issues.

And last to know whether it's the monitor or not.. check and use your monitors on another PC. If they go, then it is a hardware fault in your PC, sometime things can come lose and problems can occure espeically with older PCs as they die out. Much like a older car wears down, so do the parts of a PC.

The suggestion I then give you is to pop it in to a Computer Shop, let me test it for a half hour fee and see what they recommend. Possibly it could let on to getting a new graphics card, for a basic one it's no that costly and could solve your problems easily. Or.. it might in fact be a motherboard fault... It's hard to tell, unless you get hands on with it, and test and elimate the causes.

Well, all I can say is good luck, and hopefully you find the issue. Besides, buying something new is always a good thing, so perhaps it's time you upgraded anyway? =D

I hope I've been able to assist you.

Posted on Jul 01, 2009

MUKHTAR
  • 2017 Answers

SOURCE: I have the same problem. "No Input Signal"

may be the power button get stuck when you pressing to switch on.just change the power button cable with reset button and see. also chek the **** aslo just remove it and clean it and fix it again.

Posted on Sep 10, 2009

  • 732 Answers

SOURCE: When I turn on the computer and the monitor, the

kkjsr00, You must narrow down the faulty component!!! You must prove what is working and what is not working!! Beg, borrow, steal a "known-good" monitor to prove your pc is operating perfectly and will display the WIN-desktop screen on it. If your pc is A-ok then visit this web blog:
http://www.lesliewong.us/blog/2005/05/02/hp-pavilion-f1703-flat-panel-display-blackout-solution/ kkjsr00, when strange and weird stuff starts to appear on the screen of "cold-cathode-fluorescent-lamp" back-lit lcd displays the first place I would look at would be the units internal "switch-mode-power-supply/ccfl inverter supply".. No, No, No, unit not going to sleep!!! SMPS/inverter going into SHUTDOWN mode having detected a fault condition with itself or other circuit and is trying to save itself from catastrophic, nonrecoverable failure. e.g. smoke, fire, burn down house, etc. Do some reading in my profile and those of other fixya tech's and you will find more than enough info to help with your problem. Good luck with repair of "flakey" solder joint or bad electrolytic filter capacitor PLAGUE problem. Yes, you sure have a lot of reading to do!! 12fixlouie or old file is louie12fix also try "buddymc" , "budmrtn" profiles for more info.

Posted on Apr 27, 2010

  • 340 Answers

SOURCE: Monitor goes to sleep, states no VGA or DVI input,

It sounds like it may need a VGA replacement. If it was working on one computer and not the other I would say to look into the video card within the computer. If you have a warranty on the monitor you can call the support line and they will repair or replace it for you

Posted on Nov 11, 2010

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This may sound simple, but make sure the monitor is set to correct input. Many are auto detect, but you never really know.

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The symptoms you described is common in fault mobo or VGA card.But VGA doesn,t turn bad so easy.I suggest to change your mobo first.

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I have a dell dimension 3000, bought a new HP 2310E monitor with 3 ports. DVI, HDMI & display port. Told to buy a cable with VGA to connect to dell and DVI to connect to HP Monitor display port....


Hi sshorne9780,

I see that you are having a check input error on the Monitor/LCD that your are connecting to your Dell tower, please see steps below.

  • On your HP 2310E make sure that your HP is set to the input/source that you are using and make sure that you only use one type of video cable for the issue.
  • I see that you mentioned that you have a VGA cable and a DVI cable, you can only use one type of cable for a video connection.
  • VGA would be the Blue tipped cable connecting to the tower and going to the LCD monitor.
  • DVI this is a black cable connecting to a white port much bigger than a VGA port and is rectangular in shape unlike the VGA
  • moz-screenshot.pngmvincentc_34.jpg
  • and on your LCD monitor check the input type to see video from the tower.
  • everything seems to be OK you just need to change the input of your LCD monitor for the video to show up on the screen.
  • also if you are using HDMI for the video u will need to change the setting of your Audio and set HDMI as the Default to have Audio come out from the HDMI connection together with video, the HDMI viedo will automatically be detected as long as the LCD monitor's input is set to HDMI.
I hope that this will able to help resolve your concern.

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Monitor not connecting to tower. it is plug in to the tower. but shows that it is not connected.


three things can be the issue here:

1. No signal from the tower (VIDEO CARD)
2. Bad cable or bent pin on the d-sub 9-15 pin vga connector.
3. Bad signal board inside the monitor itself.

Things to try:

1. another computer.
2. check the signal cable for bent pins.
3. check the video card in the tower.

Before you "think its a bad monitor" you always want to assume the computer first as computers are 9 times out of 10 why the monitor is not coming on such as BIOS errors, Bad video card, bad power supply etc etc.

PLEASE BE CONSIDERATE! When rating and leaving positive feedback for your free answer today.

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When powering on get no input to monitor board nu a7n8x-e


Make sure you have connected into the correct video port. DVI should be used for LCD monitors and VGA should be used for CRT monitors. Since both ports look the same people often get confused. Try it and let me know.

Sai.

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I have the same problem. "No Input Signal"


may be the power button get stuck when you pressing to switch on.just change the power button cable with reset button and see. also chek the **** aslo just remove it and clean it and fix it again.

Sep 10, 2009 | HP L1706 17" LCD Monitor

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Whenever i turn on my pc it says no input signal.i dont know whats wrong with it.is it the motherboard or the hard drive?


When you power up the cpu check your smps is working?
Then check num lock key on key bord if it is on and off when you press numlock then your cpu gives dispaly to monitor ok.
but if it not constant on or off no change when you press num lock key then you have to open cpu cabinet.
Refix RAM memory .
Clean dust from motherbord chipset.
Pull out cmos cell for 15 minutes so bios settings are reset to defaults.
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Nothing comes up on the screen


The monitor connected to the system is set to receive video signals from the DVI port on the video card and it is not getting a signal.

Possible Causes:
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  2. The video cable is not connected to the correct port on the system (Or not connected at all)
  3. The monitor is on, but the tower is not powering on or failing to complete the Power On Self-Test (POST). It the power LED on the tower is NOT on, or solid or flashing Amber then the tower is not posting. Flashing amber is normally a bad power supply, solid amber is the motherboard.

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No video on monitor


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it seems to be an issue with the power supply as you already tried replacing the motherboard
power supply will be less expensive do try to get it replaced first

do check that monitor iss fine
unplug the blue VGA cable which connects your monitor to the tower
if a 4 colored box moves all over the screen the monitor is fine
and if it doesn't
get the monitor either repaired or get it replaced.

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