Question about Coby TF-TV1913 LCD TV

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I push the on button and it dont turn on i opend it and ther is acable louse the tv is a 40 inch tft lcd tv

I open it and ther is a cable it loos lie a ground cable and I don't know were it gose conetted

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Posted on Jan 02, 2017

SOURCE: My Coby 40 inch HDTV wont turn on. The blue light

I had a 32" Coby that did the same thing, turned out to be a defective main board. The main board wasn't sending the 3.3v signal to wake up the power supply. In my case I sold the tv for parts because it wasn't cost effective to replace the main board. It sound like your main board

Posted on Apr 11, 2012

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SOURCE: My Coby 40 inch HDTV wont turn on. The blue light

My coby 40 inch has blue light .hit power it get brighter then cuts on then right back of in 1 sec.any ideas on what this my be?

Posted on Jul 21, 2015

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1 Answer

How to turn my TV back on?


are you sure the panel of LCD is not damaged?

Nov 09, 2014 | Televison & Video

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My 40 inch S400A Series Full HD BRAVIA LCD TV does not turn on. When i plug it in, the green light (next to the Red power light) blinks. If i try to power on via remote, the red power light turns on and...


this again sounds like the power supply,.if you hear a click when you push the power button, this means your main board is reading good so replace the power supply,.

Apr 06, 2014 | Sony BRAVIA KDL-40S2010 40 in. LCD...

1 Answer

Neither picture is displaying on moniter nor sound is coming (DELL TFT moniter)


Which is a dell tft or compaq crt monitor ?
The Dell 1504FP is a flat panel LCD monitor that has a viewable area of 15 inches.
The monitor, which uses TFT technology, is designed to be used in a home or office and displays video at a resolution of 1024 x 768 pixels.
Over time, you may encounter problems using your Dell 1504FP monitor or it may cease functioning altogether.
Fortunately, there are variety of ways that you can repair the monitor to get it back up and running.
Shut down your computer and press and hold the power button on the side of your Dell 1504FP monitor if your monitor has a blank screen.
Unscrew the VGA video cable that connects the monitor to the computer.
Power the Dell 1504FP monitor back on and wait as it launches into the Self-test Feature Check.
During this period of time your monitor will make settings changes to ensure that it functions properly with your computer.
Firmly screw the VGA cable back into the rear of the monitor to ensure optimal video quality. Power both the monitor and computer back on and wait for your computer's desktop to appear.
Power off your Dell 1504FP monitor if the screen is dirty.
Wipe down the monitor using a dry microfiber cloth to remove any dust particles or smudges that have accumulated on the screen over time.
Power the monitor back on when you are complete and resume using it.
Press the "Auto Adjust" button on the right side of your Dell 1504FP monitor if the display is blurry and images appear out of focus.
Unplug the monitor's power cord for thirty seconds if the problem persists.
Plug the monitors power cord back into the rear of the device and power it back on.
This will reset the monitor and your display should now be focused properly.
http://support.dell.com/support/edocs/monitors/1504fpis/en/trouble.htm
Troubleshoot a TFT Monitor
TFT monitors can suffer from many potential problems, ranging from simple screen brightness issues to disconnected inverter or LCD cables.
These can cause video- and backlight-related failures on your TFT monitor.
Fortunately, you can attempt to repair these problems, even if you have no experience fixing a TFT monitor.
The only tool you will need is a Phillips screwdriver, although opening your TFT monitor will likely void its warranty.
Check the brightness settings on the TFT monitor.
There are dedicated adjustment keys on the bottom face of the TFT monitor.
If it is a screen incorporated into the design of a laptop, you'll find monitor adjustment keys on the top row of the laptop's keyboard.
A TFT monitor that has its brightness turned all the way down will appear to be almost completely dark.
Ensure the TFT monitor's power cable is still plugged in, if it is an external monitor. In the case of a laptop, make sure that the power cable is plugged in or that the battery is properly charged.

Disconnect the TFT monitor from the power source. If the TFT monitor is an external model connected to a computer tower, disconnect the video cable as well.

Remove the battery from your computer if you are using a laptop.
This is an important safety measure.
Turn the laptop over and slide the battery release mechanism over.
This mechanism is just below the horizontal outline of the battery on the underside of the laptop.

Remove the screws on the bezel of the TFT monitor.
The bezel is the plastic piece surrounding the TFT screen.
The screws will likely be covered with plastic seals for aesthetic purposes, so pop these seals off with your fingers and remove the screws using a Phillips screwdriver.

Pry up on the bezel gently and remove it.
Start at one corner and work along the bezel's perimeter with your fingers.
There will be small plastic latches between the bezel and the rest of the computer you'll need to disengage.

Check the TFT monitor's inverter cable.
This black cable lies at the bottom center of the monitor and should connect to a socket on the inverter board, which is the green color horizontal strip that lies just below the inverter cable.
If the cable is loose from the board, the TFT monitor's backlight will fail. Pull up on one side of the socket and slide the cable back in, then press firmly down on the socket to lock it down.

Remove the metal brackets on either side of the exposed TFT monitor if the inverter cable fix does not solve your issue.
There will be two to three screws in each bracket that must be removed using your Phillips screwdriver.

Pull the TFT monitor carefully away from the rear casing of the display to reveal the LCD cable. This cable runs from the back of the TFT screen and should be connected to a socket in a similar fashion to the inverter cable. If it is disconnected, lift up on the socket, slide the LCD cable back in, then press down on the LCD socket to lock it back down.
NOW FOR SOUND
if you can get a screen
Click start control panel administration tools computer management device manager scroll to sound video and game controllers you might see a yellow question / exclamation? ! mark or a red X Right click to reinstall drivers
If your computer came with a motherboard disk the drivers could be on it
or you might download slimdrivers.
Rather doing a driver hunt
http://download.cnet.com/slimdrivers-free/3000-18513_4-75279940.html
Windows XP/Vista/7/8
Note: it will find all of your outdated drivers
This is a free driver solutions
which will automatically search for and find the correct driver
You will have to update every driver individually once you update you might be asked whether you want to restart or make a system restore point.
Click no to both of these then continue updating each driver free then restart once all of the drivers have been updated.
It might take some time being free

Aug 09, 2013 | HP COMPAQ 7540 CRT Monitor

1 Answer

Lcd 42 inch tv


Try to unplug the powe cable from electric current for half or an hour then replug, Does ur tv have a reset button hidden somewhere? Press it , sometimes some machines need to push this button to restart working fine again Incase ther was a shortage or something. What's your brand name and model no.

May 15, 2012 | Tevion Televison & Video

1 Answer

Samsung 40 hd tv the vol will not come down from 100 percent . I try to turn the vol down and it will not turn down. what can I do. tks mike


I presume that the volume will not turn down from either the remote control or the volume buttons on the side of the tv. If the volume down button works on the side of the tv then the remote control is suspect to be faulty. If neither remote or tv volume buttons work then check whether the channel buttons work on the tv (not remote). If none of these work then check the input connection from the buttons /infra red reciver to the main pcb. This is a push on cable connector. As a point, also check that the volume up button on the tv is not stuck in, and feels the same as the other buttons when pressed.

Apr 24, 2010 | Samsung LCD-TV LE40S81B 40 in. HD-Ready...

1 Answer

Toshiba 40 inch tv with picture edges gone.


Are you using a cable box or a satellite receiver? They too have format, Zoom, or view mode buttons.. It seems like there's several names for them but they do the same thing. I hope this helps.

Mar 04, 2010 | Toshiba 40RV525U 40 in. LCD TV

1 Answer

There is NO SOUND from the LC3760N 37 inches TV after I turn it on. I tried these buttons: increase volume button, decrease volume button, and the mute button. The TV was working last nigth; I don't know...


The problem was caused by a loose conexion. One of the cables that goes from the DirecTV box to the TV was loose. The problem was FIXED by pushing the cables to make sure there was a good conexion.

Jun 10, 2009 | HP LC3760N 37 in. LCD HDTV

1 Answer

Sony KDL-40WL140 vs KDL-40Z4100


KDL40Z4100 Product Features
  • 16:9 Full HD 1080p Resolution (1920x1080p) LCD Panel
  • Motionflow 120Hz; improves TV & DVD viewing
  • DMeX compatible; allows seamless feature upgrades
  • DLNA® Compliant - view photos from another room
  • HDMI x4, HD Component x2, PC Input
Technical Details
  • Brand Name: Sony
  • Model: KDL-40Z4100/B
  • Display Technology: TFT active matrix
  • Display Size: 40 inches
  • Image Aspect Ratio: 16:9
  • is_hdtv_compatible: Y
  • speakers_included_description: 2 speakers
  • Height: 23.9 inches
  • Width: 37.2 inches
  • Depth: 2.8 inches
  • Weight: 39.7 pounds
  • Refresh Rate: 120
KDL-40WL140 Product Features
  • 16:9 Full HD 1080p Resolution (1920x1080p) LCD Panel
  • Motionflow™ 120Hz - clear, smooth motion for DVDs, TV
  • DMex ™ compatible; allows seamless feature upgrades
  • Enhanced XMB™ with 3D graphics incl. TV Guide
  • HDMI™ x4, HD Component x2, PC Input
Technical Details
  • Brand Name: Sony
  • Model: KDL-40W4100
  • Display Technology: TFT active matrix
  • Display Size: 40 inches
  • Image Aspect Ratio: 16:9
  • is_hdtv_compatible: Y
  • speakers_included_description: 2 speakers
  • Height: 25.4 inches
  • Width: 38.8 inches
  • Depth: 4.3 inches
  • Weight: 44.1 pounds
  • Refresh Rate: 120
Bottom line for the extra connectivity and DLNA certification i would go with the
Bravia Z-Series KDL-40Z4100/B 40-Inch 1080pBecause if you connect this to your in home network you can stream music videos and music off you PC onto your TV without the need for extra wired or memory cards etc.

Otherwise if you don't need this feature the other options are identical on the other TV so it is just as good a choice.

May 25, 2009 | Sony Bravia Z KDL40Z4100 TV

1 Answer

Samsung LN-T4669F TFT-LCD horizontal lines


On the back of the LCD panel at the top there is a circuit board in a metal shield. This is the T con board. There is a fragile Flat connector at the bottom of it. lightly sqeeze the sides if the connector and pull it out and the push it back in. Do this to the other end of the cable on the Main board.Be sure the tv is unplugged before removing the back cover. This cable is called the LVDS cable. If this does not fix then replace the T con board and the cable.

Apr 25, 2009 | Samsung lN-T406F 40 in. LCD HDTV

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