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I can't get my t.v Source screen off Video and onto the Antenna/Cable screen

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Have you tried pressing a input or video button? If it doesn't have any you can usually just press the channel up or down and it would normally go to the channels itself.

Posted on Oct 30, 2012

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SOURCE: I want to hook up a vcr, dvd & wii to an old

I haven't fixed it yet. I think I figured out that I have to get a RF modulator that will accomodate more than 1 video source. I just disconnected my dvd player and hooked up my wii to my RF modulator and it works great.

Posted on Dec 26, 2009

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Color bar on right side of screen


Primer:

An LCD screen cannot produce light by itself. It needs an additional light source.
A Backlight is the additional light source.

A Backlight can be a CCFL, or a series of LED's.

A CCFL is a Cold Cathode Fluorescent Lamp
Similar to Fluorescent lighting used in homes, and businesses, but on a MUCH smaller scale.

{Average thickness is 2mm. That is a little larger than 1/16th of an Inch. Average length is a little shorter than the LCD screen is in height }

http://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/

Scroll down, and look at the last 5 photos. General example of a CCFL backlight.


LED = Light Emitting Diode
The Gateway NV51B15U Notebook PC uses a series of LED's, for backlighting,

https://www.laptopscreen.com/English/model/Gateway/NV51B15U/

A screen Inverter is used to convert the power from the laptop, for the LCD screen, and Backlight.

Some of the older models that use LED's for Backlighting, did use a screen Inverter.
The newer LED backlit LCD screens, do not use a screen Inverter.

Average example of a screen Inverter,

http://www.amazon.com/Dell-Screen-Inverter-Latitude-Inspiron/dp/B003EXGHHU/ref=sr_1_1?ie=UTF8&qid=1343136763&sr=8-1&keywords=screen+inverter

The screen Inverter's location is down toward the bottom of the LCD screen, and behind the Display Bezel.
(The Display Bezel is the thin plastic frame, in front of the LCD screen)

If there is no screen Inverter, the only two things left that can be wrong, is the Video cable, and the LCD screen.
Upon opening the Display Assembly you will see if it uses a screen Inverter, or not.

Video Cable:
The video cable plugs into the motherboard, leads across the motherboard, then goes up under the left Hinge, and into the Display Assembly.
From there it connects to the back of the LCD screen.

Due to age, conditions, and just from normal opening, and closing of the laptop, the video cable can become pinched in the Hinge.

Just enough that it may damage the tiny wires inside the video cable; and/or pull on the video cable, and loosen the connection at the motherboard, and/or back of the LCD screen.

Your problem may just be a loose connection of the video cable at the motherboard, or back of the LCD screen.
How to check?

The laptop has to be partially disassembled, down to the Top Cover removed, in order to access the motherboard connection.
Plug in connection is found out to be tight? (Physically)

Then with the laptop still apart, re-connect the Media Cover, (Power On button), reinstall the Battery, and plug the AC adapter (Charger), back in. Turn the laptop on, and see if you have repaired the problem.

No?
Then the Display Assembly needs to be removed, and the other end of the video cable at the back of the LCD screen, needs to be checked to see if it is plugged in tight.

(ALWAYS check physically. See if you can plug the video cable in more tighter. The motherboard connector is fairly obvious if it is loose.
The connection at the back of the LCD screen isn't seen so readily.

For the connection of the video cable to the back of the LCD screen, to be loose enough not to work; all it takes is for the video cable connector to be the thickness of a human hair, away from the connector on the back of the LCD screen.

Both connections were tight?
Then look for obvious signs of damage, to the sheath of the video cable.
If there are outward visible signs of damage to the sheath, there is a good chance the tiny wires inside the video cable may be damaged.
(Stretched/Broken)

Best thing to do, is take the video cable down to a 'Mom and Pop' computer shop, and ask them to check it for continuity.
Video cable is bad? Replace.

Video cable checks out?
LCD screen is bad.

I do not have a link to give you for a Service Manual.
However IMHO I believe I can guide you without one.

To begin:

1) Remove ALL power. Remove the AC adapter (Charger), and Battery.

2) Although you are not dealing directly with hardware components, (Parts), that may receive Static shock, I feel it is best if you buy, and wear an ESD wrist strap. Connect it's alligator clip to a good ground source.
(Electro Static Discharge)

The average cost is around $3 to $6. Here is but one example,

http://www.radioshack.com/product/index.jsp?productId=2103245

3) Use a multi-compartment container, for the various screws you will remove. Label each compartment for the area the screw/s come out of.
SOME screws look VERY similar to other screws.
Advise do NOT mix them up.

4) Make a personal record as you disassemble. Make notes, and drawings. Use a digital camera, or video camera, or at least a cell phone camera. (Use good lighting, make legible notes you can read later)

The Gateway NV53 series of Notebook PC's, is similar to the NV51B series. Not real close, but a good basic guide can be had by following a disassembly procedure for a NV53.

http://www.insidemylaptop.com/disassemble-gateway-nv-series-laptop-fix-power-jack/

Scroll down to Step 1. Look at the Bottom Cover. (Base Cover)
Different than yours. This is yours,

http://www.cdsparts.com/p-3211-new-gateway-nv50a-nv51b-nv51m-nv55c-lower-bottom-case.aspx

Unlike the pictorial guide you are not disassembling all the way. However you need to remove all Philips head screws from the Bottom Cover, and slide the DVD drive out. (Set aside)
There are 4 screws on the Right side, and 3 screws on the Left side.
The screw in the middle to the immediate left of the vertical vent, has to be removed. This is for removing the DVD drive.

Once the DVD drive is removed, look for 1 or 2 screws in the outer left edge. (Still looking at the bottom cover) There may, or may not be any. If there are they need to be removed, so you can remove the Top Cover. (Palm Rest Cover)

Look down in the Battery Compartment, now that the Battery is removed. Looks like 3 screws to remove in the middle.
(Middle line of Battery Compartment. One to the Left, one in the Middle, and one on the Right)
Towards the inside edge of the Battery Compartment, on your side, it looks like there may be 2 more screws.

These screws may hold the Media Button Board Cover, and Keyboard, to the laptop. These two items need to be removed, in order to remove the Top Cover.
[ Generally if there are screws to the Keyboard, it may have KB, or Keyboard, or a keyboard symbol, next to the screws ]
To the left/bottom is the Harddrive Bay. To the Right is the Memory Compartment.

Looking at the left side/top, in the Memory Compartment, it looks as though a screw may have to be removed. (White area towards top. One screw hole)
You need to also remove the Memory Compartment panel, Ram Memory modules, ('Stick'), and disconnect the Wireless Antenna wires from the Wireless Module. Make a mark on the terminals, and their corresponding antenna wires. The antenna wires need to be screwed back to the terminals they were on. (Step 4)

The Wireless Antenna wires STAY with the Display Assembly. The wireless antenna is in the Display Assembly. The antenna wires are threaded up through a cavity hole, in the laptop body. They go through Channels, and Latches. They MUST go back in the same routing as they were originally. Otherwise the antenna wires may be damaged, and the laptop will not go back together correctly.

Observe Step 9, and it's 3 photos carefully. The Media Button Board Cover, and Touchpad, use the same connector. USE CARE, and do NOT break the fragile connector/s. If you break one, you are looking at motherboard replacement.

Media Button Board Cover removed, Keyboard removed, the Display Assembly is next. I could be wrong, but looking at the Hinges for the NV51B15U, it looks like there are 2 screws EACH, on the BACK of the Hinge. (Back of laptop) Also 2 screws each on the INSIDE, as shown in the pictorial guide.
I would advise removing the back ones first, then two from the inside. One for each Hinge. When you go to remove the last 2 screws from the inside, make SURE you are holding onto the Display Assembly.

There are two connectors on the motherboard side, as shown in the link. I have looked at the video cable for the NV51B15U.
Thread the antenna wires up, and out, as directed. (NOTE the routing)
Look for screws in the metal shield, in the middle of the Top Cover.
Look carefully for any remaining screws on top, that may still hold the Top Cover in place.
The Top Cover outside edges have Tabs on them. Plastic tabs, formed out of the plastic of the Top Cover. The Bottom Cover has matching Latches. The Top Cover must be eased up, and off.
(Steps 19 and 20)

Disassembly of the Display Assembly to follow in a Comment.
Regards,
joecoolvette

Jul 23, 2012 | Gateway NV51B15U AMD E350 Processor 156...

2 Answers

Why can't I use a digital antenna on my flat


Most televisions today have a setup mode for the tuner where it searches for channels based upon the input type. Older sets required the user to input whether or not the source was over-the-air broadcast, analog cable, or digital cable. If you were using your set with the cable or satellite system previously. you will most likely need to run the setup again with the digital antenna and let the set find the channels available via the antenna.

Jan 30, 2012 | Televison & Video

1 Answer

I am trying to hook my pioneer vsx-455 up to my samsung dlp-hd tv and have no idea which pre-outs to use.any help would be greatly appreciated.or do i need to go through the cable box and if so how?


Ok. Where does the TV programming originate? Antenna, TV, or (usually) the Cable Box. I'll tell you sight unseen, no TV ever adds to the audio experience. many of us watch on monitors so that would suggest that a TV can play absolutely no part in the high-end audio experience. It's specialty is video with basic audio capacity thrown in. A Cable Box is for all purposes a digital audio and video source with separate outputs for each. Keeping with my practice I'd run the BEST VIDEO (and minimum audio in case you want to use TV speakers for that source) from each video source to the TV (it has multiple inputs, right?) and the BEST AUDIO (no video) from each source to the receiver. One video connection from the receiver to the TV for set-up/control. This requires some switching on your part to watch different sources but it eliminates troublesome and unnecessary routing and handling of the individual signals.

Nov 08, 2011 | Pioneer VSX-455 Receiver

1 Answer

PICTURE SEEMS TO BE BLURRED WHEN ITEMS MOVE FAST ON SCREEN, ESPECIALLY PERSONS IN CLOSE UP.


The Sony Bravia KDL-32BX320 generally gets excellent reviews (4.5 stars out of 5) from owners, so I have to wonder what you're watching.

This is an HDTV and should excel when provided an HD signal to display. SD (standard definition) signals often look worse on an HD display than on an SD display. An HD signal is only available via the following ways (reference the image below):9_27_2011_4_28_11_pm.jpg
1) An "over the air" (UHF / VHF) antenna is connected to the cable / antenna input and there is a broadcaster of HD content nearby (only an over the air antenna can input HD signals to this jack - no cable boxes, etc.).

2) An HD Cable TV, DirecTV or Dish Satellite set top converter, Blu Ray Disk Player (or other HD source is connected via HDMI or Component RGB jacks.

3) An HD video played back from a computer hard drive connected to the VGA jack (when the computer is equipped with a modern processor and video card).


You will NOT be able to view HD video if:

1) The source material is a SD (non-HD) source. An over the air antenna will not provide HD signals if the broadcaster does not have HD content to show or is not capable of broadcasting in HD. Digital is not necessarily HD.

2) The source material (other than over the air antenna) is connected via Antenna / Cable jack.

3) The source material is connected via Composite jacks.

The USB jack is generally not an input for motion pictures, but may display stills - depending on the TV's ability to play the format they are stored in (jpeg, gif, bmp etc.).

Hopefully, this will help you solve the problem you're having with the picture. Good luck!

Sep 27, 2011 | Sony Bravia KDL-32BX320

1 Answer

I just got a new 26" Westinghouse TV, and the screen says "No Channels in List" and when I search for channels, it is not finding any.


What type of antenna are you using? Or what is your source for accessing channels? (i.e. - are you connecting to a cable tv service box or are you using a receiver ect.) Make sure that your source is connected to the input method that you are currently using on the tv.

There are many input methods to choose from in the settings of the tv. They are generally called antenna 1, antenna 2, cable, aux, hdmi - and a few other names. There should be a button on your remote to change them. The function is usually called "source" or "input". Press that button to change the input method until you get a picture on the tv or pick up some sort of reception. when you have the tv set on the same method of input that your antenna source is connected to, you will get channel reception or some sort of picture. Thats when you use the menu functions to auto find channels for you and let it go through its checking scan to report how many it has picked up.

If its running the scan for channels and not locating any stations, and the picture is either scrambled with the white noise sound tv's make when off channel or if its just single color screen without any sound - then you know the antenna input method you have chosen on the back of the tv is not the current method set in the settings under the menu key.

Most of the time the inputs are labeled on the back. If you look under the cable antenna connection, it should say "cable" somewhere in small print - or "antenna 1 input", antenna 2 ect. Look on the back of the tv. If you are using RCA jacks that are labeled right and left for sound and a third connector for video ect, look for the name of the input method of those three connections on the back of the tv. It should be marked as input - aux 1 ect. Then just change the source chosen in the tv to match it and have it auto program your channels.

Jul 06, 2011 | Televison & Video

1 Answer

Having trouble hooking up vcr


I've never seen a VCR use anything other than Composite, S-video or RF analog outputs. That's because VHS uses the NTSC or PAL analog video standards. (In the US, it is NTSC; in Europe PAL is the old standard.)

To use the Composite output, get a triple RCA cable (red, white and yellow connectors). Connect one end of the cable to Video Out (yellow), Audio Out right (red) and Audio Out (white) on the VCR. The other end of the cable goes to the corresponding Composite Video In jack and the adjacent Audio In jacks on the TV. If you are using S-video, (both units must have S-video jacks), the S-video cable replaces the Composite section of the triple cable, so you only need an audio patch cable (two RCA plugs on each end). Be sure to use the audio input corresponding to the S-video input. Note: S-video is generally better quality than composite, although HD digital is still superior.

If you wish to record from the TV, the TV must have a composite video or S-video output. This is not very common. If you wish to record programs from an RF source (cable or antenna), see the next paragraph.

In the days before digital, a typical connection scheme was to run the cable or antenna RF source to the ANT IN coax connector on the VCR, then run a short coax cable from ANT OUT to ANT IN on the back of the TV. This may not work with a digital source. Pre-HD VCR tuners would not be HD compatible, and may even filter out the digital signal in bypass mode (VCR off). You would need an HD to analog converter box at the VCR input to retain this setup. I have no information on your TV's support for NTSC video through the tuner (especially since you did not mention the model : /).

Jun 21, 2011 | LG Televison & Video

1 Answer

Really? cool... so I have a Panasonic HDTV 720p... just moved, no cable, but I have a TV antenna. Amplified indoor antenna. GE brand model 24700. I powered and connected the coaxial cable between the tv...


You need to go into on screen TV tuner/channel scanning setup page and change the signal source from CABLE to ANTENNA so it will scan again to pick up off the air signals. Please read the TV user manual for more details.
What is the model number of the TV?

May 15, 2011 | Televison & Video

1 Answer

How do you replace a laptop screen l555d serial number...its a toshiba.


1. Turn off the computer and remove the battery.
2. Loosen the plastic frame bordering the Toshiba Satellite L555D-S7005 Screen. This frame is attached to the notebook's back shell and holds the screen in place. Pry open two to six small rubber seals from the frame and undo concealed screws.
3. Detach the frame after removing all screws. Hold the bezel from either side of the screen and gently pull it away from the screen and toward you. If the bezel seems to be stuck, find any points of attachment, such as clips or hooks, and undo to detach it from the outer shell. Work with your fingers and go all around the frame to release and completely detach it.
4. Free the LCD panel from its position in the notebook's lid. When you remove the bezel, you will notice that the screen is held in place, enclosed in hinges. Undo screws from either side of the screen to release its attachment to the lid. Place a finger at the top center of the screen to keep it from falling down as you remove the screws. With all screws undone, tilt the panel and lower it face down onto the keyboard.
5. Disconnect the power cable and video cable from the screen. The power cable connects the screen's power source of the lcd inverter to the backlight lamp attached to a side of the panel. Unplug cables from either end of the inverter board and unscrew the board from the base of the screen. Next, find and unplug the video cable a broad, ribbon like arrangement taped to the back of the panel. Pull at the plastic head of the cable to detach it.
6. Remove the screen. With the screen's cables unplugged and inverter board removed, it is completely detached from the notebook's display assembly and may be safely removed. Pick up the panel from the keyboard and keep it to a side.
7. Orient the replacement screen by bringing it to the work area and aligning it to the laptop's shell. Gently rest the screen on the keyboard and attach the power cable and the video cable. Raise the screen and attach the inverter board to its base. Plug in the inverter board's cable to the screen's backlight lamp. Screw the screen in place and reorganize the display assembly.

May 04, 2011 | Toshiba Computers & Internet

1 Answer

I clicked a button by accident last night and now my Vizio tv reads no signal and a small display in the top right corner reads AV. How can I get my tv to read cable signals again??


What input is the cable connected to? (Coax antenna In, component video, composite video)

Look on the remote or the TV itself for a button marked Source or Input. Press this. For some TVs, use the up/down arrows to select the input to which your cable is connected. (TV = coax) On other models, you may need to press the Source button several times to advance between inputs. (I'm assuming you have a remote that works for this feature on the TV; otherwise, use the TV button.)

I hope this helps.

Cindy Wells
(common modern TV setup: VCR on AV1, DVD player on Component 1, PC to the HDMI/DVI and coax to the antenna in. The source button is needed.)

Apr 26, 2011 | Televison & Video

1 Answer

Picture turns off but sound stays on my wharfedale lcd26hdmi


let me know first what is your source of the signal: from cable TV, from antenna or from video source like dvd and vtr or any deck? if from dvd or any video source are u using rf cable or av cable (two wires) one for audio and other for video if it is this wire try interchange audio to video.
next at what time you miss the picture during watching tv through antenna or cable or during using video sources?

please tell me to help u solve your problem.

Sep 08, 2008 | Televison & Video

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