How can i build my own usb powered monitor?
Question by mmathavan
Hi all, I'm in for my first topic: i'll get a new pc soon, and I wanted do install a 2nd monitor, not far away from my bed, so it would be easy to watch films. The pc would stand in the same room. Is there an easy way to connect an (old) tv, or a monitor (wireless) to your pc? Thnx Arnout PS, I'm from Belgium, so sorry for my English ;)
Topic by arnoutdejans
I just got a 3.5" lcd monitor from ebay and i want to connect it to my computer but my computer has only vga , dvi and hdmi input and the monitor just composite the monitor http://cgi.ebay.com/Mini-3-5-inch-TFT-color-monitor-for-car-backup-camera_W0QQitemZ170510640554QQcategoryZ32826QQcmdZViewItemQQ_trksidZp3911.m7QQ_trkparmsZalgo%3DLVI%26itu%3DUCI%26otn%3D3%26po%3DLVI%26ps%3D63%26clkid%3D5532670551837826563 please help me!!!
Question by Andrew_48 | last reply
I've got a 19 inch flat screen crt monitor hooked up to my mac. And when I play my music really loud, the image almost shakes like it would if I had the stereo hooked up to the power bar with it like it used to be. The stereo is on it's own breaker right now, but is it doing that from the actual vibration of the picture tube or is it dieing on me?
Topic by Punkguyta | last reply
The story is my 6 month old computer monitor is playing up and I need advice on what to do. The ploblem arised about a week ago and has persisted til today. When I turn the computer monitor on, instead of the usual flash of the Acer logo it repeats 18 times! This number remains constant and is bloody irritating. Also when the computer is on it periodically flashes no signal (when there clearly is a signal) for about a minute and then refreshes the monitor and repeats. Even whilst I am writing this it is there. What should I do? replace the screen or something else? HELP!?
Question by Tombini | last reply
I recently bought a 19 inch LCD monitor for 40 bucks (used). It works perfectly for about half an hour (i havn't timed it) and then the screen just goes blank. If i turn it off and then back on it works for a couple of seconds then it turns back off. If I let it be for a while (like an hour or just when I'm not using my computer) it works fine for another half hour. Is this an overheating problem or what is going on?
Topic by guyfrom7up | last reply
Congrats! Instead of throwing away your broken LCD monitor, you've decided to fix it. What do you have too loose by attempting the repair yourself? It's already heading for the trash can or the e-waste center. By repairing it you will probably save from $100 to $200 or more! If you have done any reading at all on the web, you have already discovered that bad capacitors account for a large percentage of all LCD monitor failures. If your monitor flickers when you start it up, the screen is dim, has strange lines on it, clicks, etc., then this information is just for you! The repair does not require any special knowledge or skill. About the only tools you will need are a putty knife, a screwdriver, a pair of pliers and a Radio Shack soldering iron. Without getting into too much technical jargon, there are two main components inside your monitor, the power board which powers the inverter (lights) and video, and the video board. The power supply circuit board must be removed before you can replace the capacitors. You must open your monitor and examine the capacitors on the power supply board. Each monitor will have a power supply circuit board. Each monitor model will have a slightly different board. They all look about the same. Some have more capacitors, some have less. Most all LCD monitors have a large 400v capacitor. These rarely go bad. There's a video at www.youtube.com/watch that shows you how to disassemble a Viewsonic monitor, and install new capacitors. This is a great video! There's also a good tutorial that shows how to completely disassemble a Samsung 204T LCD Monitor. It's a step by step guide, which also includes a "how to solder" video. Although this tutorial is for a Samsung 204T LCD monitor, the information found here can be applied to almost any monitor. Between the YouTube video on the Viewsonic monitor and the tutorial you should have no problem installing new capacitors in your LCD monitor. Good Luck!
Topic by sghill99
I have two VGA ports on my pc, so i recently plugged in two monitors. Only one of them will turn on. Vista doesn't even know the second one is there. What can i do to make vista recognize the second one? There are some pics to help you diagnose ze problemo. EDIT!: Look at picture two.
Question by Millawi Legend | last reply
I know this is not a new though and people have been asking on this forum. However I didn't find a similar solution to mine and thus I would like to ask for the possibility of success. Situation: A laptop, fully working, a desktop monitor, fully working also Want: A wireless VGA between the laptop and the monitor, so I can use my laptop in one side of my room, while having the monitor sits in other corner, within 5 meter Proposed solution: A wireless kit [url]http://focus.ti.com/docs/toolsw/folders/print/ez430-rf2500.html[/url], so one end attaches to the VGA port of the laptop, of course a a simple will be needed to input the VGA signal into the microcontroller. The receiver will also be attached to the desktop monitor with an appropriate circuit. is it a possible solution? if so, what could the appropriate circuit be please?
Question by luckyvictor | last reply
I searched for hours with varying keywords and can't find too much information... 12v to pin 1 and GND to pin 2 but what do I do about the neutral? I read a xbox 360 laptop mod but it involves the 5v too, and connects it to the power brick. I'm trying to do something different. Trying to make a lunchbox out of a macpro 1.1 case. 1 wire to plug into an outlet is better than needing two. Before I get into this project im trying to understand what I need to buy and feel kinda silly asking such a question which should be extremely simple but I want to be safe and dont want to fry anything. For those that are actually interested in what I'm doing, I kept staring at the case thinking "what can I make with this, and the items I have laying around?" I thought I'd 1-up the basic hackintosh build and go against the grain of using the case how it's intended. I flipped it so the side with the I/O ports were sitting flat, measured the inside which gave me 7" of workable space with 0.4" wiggle room which made perfect for an mini ITX to be laying flat down instead of against the wall. I thought I could take my dremel and cut out an area for a LCD monitor. I have enough DVD drives laying around as well that I could make a "push tray to eject keyboard" sort of slide out keyboard upgrading the rails, using an ultra thin keyboard with a track pad and top it off with sound activated lights and my 1.5 TB HD that's almost full of music. I realize I can do this with a laptop and pocket usb speaker/light effects, but it wouldn't be as cool and I wouldn't get to reuse these items I have sitting around.
Topic by bvarious | last reply
I'm thinking of making an LED based hard drive monitor that will show the % of free space. My thoughts are either an Electric Imp or a Spark Particle wifi controller and then some kind of OSX script that runs on my server to read the disk usage and push it to a web server. I'll be using APA102 or LPD8806 strips. Any thoughts or suggestions? Cheers.
Topic by filthyPhil | last reply
Question by sturific | last reply
I have a samsung S27A350H 27" 1080p TN Monitor which for a long time has worked just fine, permanently plugged into the HDMI of my old desktop. However I now have a better laptop which replaced the desktop, but I find that the monitor occasionally will not display a picture when plugged into my computer. I have nvidia display output settings set to output 1920*1080, 60p, with full (not limited) 8 bit colorspace. I do not know the settings of the HDMI output. I find that if I close my laptop lid, W10 goes into either a sleep or hibernate mode, and stops providing a signal to the monitor. If I wake windows again, the monitor will not display anything. Windows appears to detect the monitor fine and extend my desktop as it should when this monitor is detected. However the monitor appears to bounce between looking for a "digital" and "analog" source (HDMI and VGA respectively) Unplugging and replugging the HDMI connector has no effect. Windows detects the monitor fine, monitor does not. Changing the output resolution, frame rate, and colorspace does not appear to change this behavior. The monitor requires a deep power-cycle. Powering it off for several minutes (supposedly to allow charge to bleed away from internal capacitors.) usually (but not always) temporarily fixes the issue. The length of time needing to be unplugged seems to vary between seconds and days. When the monitor enters this nonfunctional state, no HDMI signal is detected. (tested by replacing my computer HDMI source with a raspberry pi. I did not go so far as to adjust the HDMI output settings of the Pi by editing the config file, but the settings were previously changed to optimize the picture quality with this particular monitor in the past anyway. This monitor appears to have a simalar issue with the VGA adaptor. However fixing it is generally a matter of unplugging the VGA and plugging it back in again, or opening up the display settings on W10. Online sources appear to suggest that a firmware bug in the monitor is the culprit, and the only way to fix the monitor is to connect the monitor via VGA and use the samsung firmware tool for this monitor to update / reflash the firmware,the explanation being that a bug in the firmware causes it to overwrite parts of itself, corrupting itself as a result. However the executable provided by Samsung immediately crashes after a successful installation of it and the driver when clicking to reflash the firmware in the software. I found no information regarding the error message that appears. (note my current and only laptop does not have a VGA output. Not sure if this is the reason it crashes, the error message does not give much detail. ---- When I first received this (supposedly broken) monitor from my uncle for free, I found that it was under the warranty period and the problem at the time was that it would not display VGA or HDMI signals. Samsung offered to repair the monitor under it's warranty, and since, it has worked fine, being connected to my main computer permanently. I suspect the problem then is the same one manifesting now.
Question by -max- | last reply
I am trying to make the monitor into a digital frame without a lot of work ?
Is this possible? I'm trying to run RCT3, and my dinky screen can't handle the incredible graphics...so I'm trying to make another monitor that can handle it the only monitor. Is it even possible to disable the lcd monitor that's built in? If so, how would I do it?
Topic by Lithium Rain | last reply
I purchased a monitor and realized that it does not have the VESA standard holes in the back. Does anyone know of any way to use it in a normal monitor stand type configuration such as http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=4521948&csid;=ITD&body;=MAIN#productresources. Could you use a product like JB weld or Gorilla glue to just glue a mount to the back or is there a standard type solution out there?
Question by mattbliese | last reply
For video diagnostics, a wave-form monitor and a pulse-cross monitor are highly useful tools. Is there a simple way to convert a standard video monitor into a pulse-cross (sometimes called a cross-pulse) monitor? I.e., feed the signal into a box and the box feeds into a standard video monitor and you can see the normally invisible image corners and invisible vertical interval of the video. I think this can be a simple electronics diagram. Thanks for any help!
Question by LightSpeed1 | last reply
NOTE: I since found a couple links that might shed some light on the question... From HackIt: New uses for old CRT monitors http://hackaday.com/2008/02/25/hackit-new-uses-for-old-crt-monitors/ It would be very hard to do, but it is possible a CRT could be converted to a vector monitor. Perfect for playing Asteroids, perhaps under MAME. You would have to replace all the control circuits, probably with an FPGA and three ADCs (x/y/intensity). Posted at 8:58 am on Feb 25th, 2008 by MoJo Television and PC monitor experiments http://www.educypedia.be/electronics/televisionexperiments.htm old cga/vga monitor to oscilloscope ? http://www.edaboard.com/ftopic57853.html The inquiry: Maybe I am over-simplifying but I was reading one of those examples of hacking into a CRT's horizontal & vertical yoke controls to sync to music: http://geektechnique.org/projectlab/707/how-to-make-mac-se30-audio-visualizers and had the idea that it should be possible to create a DIY XY monitor (vector display like on an oscilloscope, Vectrex, Asteroids, etc.) for an Arduino or other uC, MAME or Vectrex emulator, from any TV or CRT, once you have hacked into the electron gun's yokes. My understanding being: Raster display: the horizontal yoke (an electromagnet) sweeps the electron gun from left to right turning on the beam wherever there's a "pixel" at that line (which lights up the phosphor at that point making it visible), then it starts over at the next line (vertical yoke moves down) and draws the next line, and so on, Vector display: instead of rendering a moving image frame-by-frame using top to bottom/left to right scanning, shapes are drawn directly to the screen by positioning the horizontal & vertical yokes at the starting point, the beam turns on, and the yokes repoint to the end point, thus "drawing" the line inbetween the 2 points (I would assume this is for straight lines, not sure if circles or arcs are possible?) then the beam turns off, and the yokes get re-positioned to the next line's starting point. I'm not sure what turns the beam on & off or what kind of timing might be involved, obviously that needs to be controlled somehow. Or for color, where instead of a single white (or green, amber, etc) phosphor exists per pixel, there are multiple (red, green, blue) per pixel, and the beam hits each one at varying strengths (or for a varying length of time?) to 'mix" the primaries to the desired color? I'm not sure how that gets handled in a color vector monitor, but I would assume it's something similar to raster? So if we can hack into a CRT's X/Y yokes and move them around with an audio signal, can we control the yokes more deliberately from a microcontroller to plot specific shapes or text, hence a vector display? For those audio/TV hacks, what is the audio signal doing to the yokes that causes them to move? Whatever it is - voltage, resistance, etc - this is what our device would have to control. Possible proof of concept version: make a device to control the yokes' position etch-a-sketch style with a couple of potentiometers, and turn on the beam with a switch or button. If you see a dot of light moving across the screen then it works. I am thinking the controller might need to be "calibrated" for the individual CRT? (Maybe build some kind of calibration mode into the device.) You might dedicate a microcontroller to driving the display - it could receive text or vector shape coordinates via serial, store the shapes to draw in its own memory, and persist or refresh the image independently, freeing up processing power for whatever device it's displaying for. Another idea would be maybe add some kind of way to read light pen's coordinates, thus making the CRT an input device that can be read from the microcontroller or PC (the Vectrex had a light pen right?) [This would be a cool mod for the Arduino composite TVout as well.] So is this idea possible without a ridiculous amount of work & parts? I may be dead wrong about how this stuff works (I'm sure that if this was possible, someone would have done it by now?) but figured it can't hurt** to put the idea out there. I have visions of 4-player vector Arduino pong, Asteroids, Tempest, PDP-1 Spacewar!, vector NES Duck Hunt, a vector etch-a-sketch or lightpen drawing or animation program, or vector Atari Video Music. Possibly an open source color vector games system. Or just a vector display system for any Arduino or microcontroller project, made from any TV. **WARNING: maybe it CAN hurt... Evidently hacking into any CRT can be deadly, you have to discharge the CRT and capacitors properly or you can get killed. So please be careful. This definitely is NOT for kids to try at home.
Question by apple-o | last reply
I am looking to make this but I don't have a laptop readily available and before buying one, I do have a extra monitor lying around, will this work instead of a laptop monitor? The model number on the screen is M200O1-L03 I found control board but it is for M200O1-L01. will this work for it?
Question by AndyK33 | last reply
Hello, So for my application, i need to have a circuit that can monitor the input voltage until it reach 5V (usually from 0V ) then switch on and allow the 5V to flow into another circuit. The problem is i have no idea where to start. Can anyone help me ? Thank you very much
Topic by ChuongV1 | last reply
I have a samtel crt monitor it is in working condition. I want to buy a lcd monitor. What can I do with the old monitor
Question by SAJAMEEL | last reply
Hi all, I am working on a project to create my own portable usb monitor (eg. ltn101nt02) and a LCD controller board. However, the controller board requires a 12v power input with more than 2A. I am thinking of using a boost converter but I'm not sure if it will work. Also, with the USB as power input, can it still work as a screen input for my monitor? Can anyone advise if i can modify the board such that I can use a USB for both power input and screen input? Thanks!
Topic by wzlee1 | last reply
I disassembled my old hp printer and I got this monitor. you think it is usable in any way?
Question by cepi85 | last reply
I have an arcade cabinet that is jamma wired with a 25"monitor and working power supply set to 5 volts.the pcb is an icade 60 in 1.how do i connect everything?i have little experience in this field but im willing to learn so please have patience.thank you
Question by phill2 | last reply
My LCD computer monitor normally runs on 240v (Australia) but it was running during a power “brown out”, so is it maybe passable to run it from 12v without opening it (Imeen power it via its mains power cable)? Or would a standard inverter work? And what kind would I need? Power info from back 100-240v~ 1.2A
Question by BlueSuneLIght | last reply
I've got Windows 7 and I am running 2 monitors. Is there a way that I can make only one of them go to sleep? One is a 50" Plasma and the other a 20" LCD. I love to watch movies on the 50" and the 20" can be quite overwhelming due to how bright it is. If you are wondering why I don't just hit the power button, well... it's 8 feet away.
Question by redstarsrbija | last reply
On light just flashes after computer boots up, will not come on!
Question by Rustydog45 | last reply
Question by dark_angel000 | last reply
So i've disasemble my lcd monitor and builded a new frame for it, the back of the lcd is in metal and there are two pcb's attached to it so i was wondering if I needed to add some material to isolate the component from the metal plate behind the monitor? Usually the pcb's are mounted on a plate to it won't touch the monitor directly. Thanks
Question by bluepills | last reply
I want to use this monitor with a 12v battery 4amps will this work if i hook it up??? if not what do i need to do to get it to work properly?
Question by captainlee | last reply
HP Pavilion f1503 desktop LCD Flat monitor turns on for about 2 seconds then turns off, what do I solder?
Question by miguelangel | last reply
CAN SOMEONE PLEASE DIAGNOSE THIS STUPID PROBLEM! I HAVE TWO MONITORS CONNECTED BOTH VGA PORTS WORK BOTH MONITORS WORK I LIKE LEMONS I HAVE TRIED BOTH MONITORS PLUGGED INTO THE VGA PORTS CLICK THE LINK TO SEE THE VIDEO YOUR BAKED ALASKA IS GOOD YOU CAN SEE MY PC SPECS IN THE DESCRIPTION FOR THE VIDEO MY THROAT IS SORE The End. Link to vid: http://www.youtube.com/watch?v=Nr5NHbtZpF4
Topic by Millawi Legend | last reply
This would be very similar to a baby monitor. Is there a way to transmit the signal from outside to inside the house?
Question by Petie | last reply
Hi guys.! I want to make multi monitor display. My idea is to disassemble 6, 19 inch HP 1940 square monitor (resolution 1280x1024). And to join there panels at a glass surface like the image below I will manage the panel with glass and aluminium frame. The question is how i will manage there video signal input. Because my GPU have only 4 display ports in it. Waiting for suggestions . Thnks
Question by assassin.abdul | last reply