Question about Televison & Video

1 Answer

Sound but no picture - Televison & Video

Posted by on

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.

  • Master
  • 11,361 Answers

Please alway provide the make and model number of the TV.
LCD Flat panel TV?
First, look at the screen in darkened room to see if you can see any slight glow from the screen, if it does, then the problem can be the T-CON (not getting the 12vdc) or the main logic board not feeding the signals to the T-CON board.
if not, next place to check will be the power supply module, make sure it has 24vdc which is required by the backlight inverter to work, the reason for not having 24vdc can be from bad DC filter caps (leaking/bulging top, high ESR) or short circuits in the inverter board which will cause the 24vdc supply to go into shutdown mode, so you may have to disconnect the power cable that feed the inverter board to see if the 24vdc will work without the inverter board hookup, you will need to apply about 3~4 amp of load to the 24vdc to make sure it can handle that. There are fuses on the backlight inverter boards also. So there is some troubleshooting you will have to do to find out the causes of the problem you are having.

If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:

Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors pictures: http://s807.photobucket.com/albums/yy352/budm
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Parts: www.shopjimmy.com
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.
Or www.digikey.com, just make sure to use caps with low ESR, 105c, high ripple current and long life rating such as PANASONIC FM or FC series.
Please post back what you find.

Posted on Mar 21, 2011

1 Suggested Answer

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,
a 6ya expert can help you resolve that 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.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

IGO tv connected with dish sound come from tv but pictur not show only blue color show


Component RCA Connectors are RED, BLUE, GREEN for picture. Sound is RED and WHITE. The red and white for sound work the same with the YELLOW that does picture. If the RED, BLUE, GREEN are in the wrong order you will get a blue or green picture. For the sound, try the other red and white connectors nearby. Make shore the right red connectors are connected correctly for sound or picture. Otherwise there could be a cable fault or a TV fault. If you get the picture right but not the sound, connect the sound into a stereo.

Jul 17, 2017 | Televison & Video

2 Answers

What do you think is wrong with my television, it has sound but no picture. How can I fix the problem?


Hi there
I would go to menu on the remote , from there to picture go down the list, if you do not find anything there to help you. Go to Support and to the E manual .
26053790-x3zeawgeewbvgdzeyuixqaom-4-0.jpeg Kolbrun

Jan 14, 2016 | Samsung LN52C530 52" LCD TV

1 Answer

The tv has sound but no picture. For


LG LED TV has no picture (black screen) but still sound ...

www.tomsguide.com/answers/.../led-picture-black-screen-sound-fixed.ht...
My 32' LG LED TV has suddenly lost picture! The sound is all right but the Screen is pitch black. After switching it on the picture flashes for a second and then the screen goes completely black.

LCD Easy Fix (sound but no picture) - YouTube

? 4:52
https://www.youtube.com/watch?v=IBRE1Dcyxp4
Jan 13, 2012 - Uploaded by Clay Whitehead
TV Has Sound But No Picture Troubleshooting Guide - Duration: 2:30. by Repair.com 472,733 views. 2:30. LG LCD TV REPAIR -NO PICTURE ...

Dec 21, 2015 | LG 47LN5400 47" LED TV 1920x1080, 120 Hz....

3 Answers

LG LCD TV no sound


LG tv flatron no sound, picture everything else is fine but no sound what can be done to fix it

Jun 16, 2008 | LG 42LB1DRA 42 in. LCD Television

5 Answers

No picture but has sound


My LG TV
switch on no picture but short period of sound then nothing

Jan 20, 2008 | Sony KP-51HW40 51" Rear Projection...

2 Answers

No picture no sound


Last night i set childlock in my nikai ( NTV34010) tv set and tuned off by remote control.Then after some time later i tried to turn on tv but there is no sound and no picture.
will u please help me to solve it out.

Dec 02, 2007 | Panasonic CT-36D32 36" TV

1 Answer

Playback movie pictures or sound


Movie pictures can be played back with the camera, but not sound. However, when the camera is connected to a TV, both movie pictures and sound can be played back. For playing back movie pictures or sound on a PC, the QuickTime™ 4 is required.

Sep 01, 2005 | Olympus Camedia C-3030 Zoom Digital Camera

1 Answer

Playback movie pictures or sound


Movie pictures can be played back with the camera, but not sound. However, when the camera is connected to a TV, both movie pictures and sound can be played back. For playing back movie pictures or sound on a PC, the QuickTime™ 4 is required.

Sep 01, 2005 | Olympus C-3000 Zoom Digital Camera

Not finding what you are looking for?
Televison & Video Logo

Related Topics:

31 people viewed this question

Ask a Question

Usually answered in minutes!

Top Televison & Video Experts

The Knight
The Knight

Level 3 Expert

74106 Answers

Cindy Wells

Level 3 Expert

5097 Answers

Electro Med Services...
Electro Med Services...

Level 3 Expert

6694 Answers

Are you a Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...