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

1 Answer

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?

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • HP Master
  • 783 Answers

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,
Or

Still having Problem Then follow Us For Computer Support

Posted on Mar 21, 2014

Ad

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Ad
  • 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
  • 2022 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

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Gateway a computer desktop has power but nothing on screen the computer doesn't have a tower


1) Computer doesn't have a tower? Means it is a 'pancake style' of desktop computer. A flat model.

2) No signal on monitor screen?
Good.
At least we know the monitor is good.

Problem is monitor cable, IF separate cable; or computer.

Computer isn't sending a video signal.
No Signal, Power Saver Mode, etc.

If an older CRT type monitor, (Looks like a small TV), and monitor cable is not detachable; use a known to be working monitor, and monitor cable.

If a separate monitor cable, use a monitor cable from a working computer, for a temporary test unit.
Put it back when deemed monitor cable is the problem.

Logic at this point, would deem something is wrong with the graphics chipset.
Whether mounted directly to motherboard, (Integrated), or a separate graphics adapter card. (Graphics/Video Card)

However, computer could be dirty inside, or have a bad Power Supply.

LED's (lights) light up? Maybe fans spin?
Means nothing.

1) If ALL of the Light Emitting Diodes were on at once, they would use less than 1 Watt of power.

2) EACH fan uses 2 to 3 Watts of power.

3) A typical Processor can use from 51 to 130 Watts of power.
Just depends on what Processor it is.

Older desktop computer?
Ummm, 35 to 40 Watts.

That is why LED's can light, and maybe fans spin, but no computer.
NOT enough power to turn the Processor on.

Computer needs to be CLEAN on the inside. Inside of Power Supply too, as well as possible.

Proper method to do this procedure, post back in Comment if you need guidance.

Also remove ALL Ram Memory modules, and clean gold plated contact pins on bottom; with pencil eraser.
Reinstall. Make SURE they are seated in tight, and Lock 'ears' are locked in place.

Post in a Comment, as to the model number.
Example, DX4300-05. Should be on back of computer.

Regards,
joecoolvette

Mar 22, 2013 | Gateway Computers & Internet

1 Answer

When i on my desktop it show blue screen and says no signal analog


That means that the monitor is not getting a signal from the computer. There are several possible issues involved. 1) Make sure that the computer tower is on. 2) Check that the video cable is connected to the active port on the desktop. (Computers often have video connections on the motherboard and an added video card. The motherboard connection is disabled when the video card is active. Similarly if there are several ports (VGA, DVI, HDMI, Display port) only one may be active.) 3) Try a new video cable (if possible) and one of the other video ports (again if possible). 4) Try connecting a different monitor to the computer or connecting this monitor to another computer.

Open up the computer and check if the card requires a separate power connection to the power supply. Make sure it is plugged in. Do the fans in the computer spin up?

If a second monitor doesn't work or the monitor works on another computer, then the problem is with the video adapter on the computer, the power supply or the power switch. Please add a comment with more information about the type of desktop and the current video graphics adapter (on the motherboard or separate card). I will provide additional help if possible.

Cindy Wells
(who has a computer in the company that needed a new monitor (power supply failed) a few months ago and lost the fan on the video card last week. Without the fan, the card overheated and shut down. Thus no signal to the monitor.)

Oct 02, 2011 | Computers & Internet

1 Answer

My monitor has gone to Power Save Mode


Hello,
If your monitor is going in Power save mode it can be cause by following reasons.
>Check the data cable going from monitor to your Dell Dimension 4600 Tower is connected properly.The connector will be blue or white in colour.
>If the Dell Dimension 4600 Tower is powering on.

If still in power save mode then try to shutdown Tower and monitor,disconnect power cable from tower and monitor.Hold the power button on tower for 15 seconds.Then again try to connect monitor and check,if still nogo,and if tower has no lights then issue with motherboard or video card or power supply.If possible try connect spare known good monitor.

Thankyou

Sep 09, 2010 | Dell Dimension 4600 PC Desktop

2 Answers

No signal or cable disconnected or power problem


Hi,
check the black cable with big blue connector at the back of the monitor if its connected properly. Also follow the cable and check if its securely attached at the back of the system tower. if the cables are connected properly check if the cable is connected to the correct port at the back of the system tower. Some computers have two places to connect this cable one towards the top and other towards the bottom of the system, tower.

Thanks for using fixya
proton

Jun 16, 2010 | Dell Inspiron 530 Desktop Computer

2 Answers

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.

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/edwy_1a56970cf1ea4620

May 27, 2010 | Sceptre DCL 7A 17" Flat Panel LCD Monitor

1 Answer

I have acer aspire series computer for 2 years.one day when i open my computer my monitor display no signal what are the reasons


Hi! it means that the monitor is not picking any signal from the tower or computer.Check all physical cables first esp the video cable from the monitor to the tower.Check if the computer has power by checking lights, sound coming of the machine. Check if monitor cable is securely plugged in to the vga or hdmi port.If you are using a adapter for that cable try to directly plugin the cable without using the adapter.If still no signal, check if you have a external video card or internal.if you have a external video card and thats the one that youre using then remove the external video card(you need to open up the tower and physically remove the external video card) and connect the video cable to the onboard card then check if will get a signal.hope this helps...

May 20, 2010 | Computers & Internet

4 Answers

No video on monitor


f their beeps and the led of your system unit is blinking it migth be.. or the video card is not properly install in the board

Jun 06, 2008 | HP Pavilion a420n PC Desktop

2 Answers

No display on screen and solid amber light on pcs' power button


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.

Jun 06, 2008 | Intel Motherboard

1 Answer

HP PAVILION 760n


tell me if there is something i need to know like: what were the things that you've doing with your computer before the problem happened?? are there any recent hardware/software changes?? tell also your OS- is it XP or Vista...
1

first, let's try to check if the problem is with the monitor or not,okey? try unplugging the monitor blue connector at the back of the tower.and make sure that your monitor is turned-on.If you can see a colored bars displayed.you monitor is okey.if not, try a known good monitor...if it woks the problem is with the old monitor.(resolved)

2 (if not)
Now, complelely turn off your computer and try reseating all the cables, and your hardware components such as memory,video card,IDE cable and so on. but before doing so, unplug the power cable and then push the power button to drain the power.after reseating everything, plug back the power cable and turn on computer.try listening to the tower,tell me if you can hear some beeps also.

if no video issue is still there, try putting a known good video card if you have any.if a known good video card works then the problem is with the old one..

if the problem is still there after everything that you've done try calling the manufacturer. this is lead to a motherboard problem but try to call them first.

Jan 17, 2008 | HP Pavilion 760n (P6320A) PC Desktop

2 Answers

Green light blinking screen blank


Hi Suzee,

Is the green flashing on the tower or the monitor?

If it is flashing on the monitor, then it might be tht the monitor is not gettign signal from the tower.
To check, disconnect the monitor from the tower and check the monitor. If you get a msg on the screen like no input signal or check video cable, then 99% monitor is fine.

Check for the power supply light at the back of the tower.

Disconnect everything from the computer and then press and hold the power button on the comp for about 30 seconds.

Then connect the cables and check if it is working.

Jan 14, 2008 | Sony SDM-S73/B Monitor

Not finding what you are looking for?
HP Media Center m7657c home PC - RC640AAR 19" LCD Flat Panel Monitor Logo

86 people viewed this question

Ask a Question

Usually answered in minutes!

Top HP Computers & Internet Experts

Les Dickinson
Les Dickinson

Level 3 Expert

18424 Answers

Doctor PC
Doctor PC

Level 3 Expert

7733 Answers

pontelemon
pontelemon

Level 3 Expert

538 Answers

Are you a HP Computer and Internet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...