Question about JVC LT Televison & Video

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No picture on panel

After switch On TV set start flash the Blue LED, after 4 seconds Blue LED light, Backlight light, but Picture (OSD) not visible. Can be the problem incorruption of eeprom data or software? Problem happen on LT-26DA30U model with main board 17MB62-1 v1.

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

IrishDruid
  • 2712 Answers

SOURCE: No Picture

I would check the soldering first for any cracks, and any obvious faulty capacitors or components. It looks like the power board is going into a protective mode because of a short / failed component somewhere.

It would be virtually impossible to guess exactly where with a spot check..

Posted on Oct 29, 2008

  • 140 Answers

SOURCE: sony Tv PFM-42 V1 doesn't show any picture or tv menu

This is a common problem with plasma tvs You did not mention whether you could generate any sound like through your dvd player or something like that. Whether you have audio or not makes a difference on which board may be causing you the problem. Just because it does not have a picture for tv viewing does not mean it won't produce some type of sound through your av1 input. Try it and I'll try to be more specific.

Posted on Jan 06, 2009

  • 1 Answer

SOURCE: Panasonic TH-50PE700U red light flashing 6 times

Replaced the sc board and tv works fine again.

Posted on Jan 22, 2009

  • 1 Answer

SOURCE: pioneer pdp 502mx goes to standby no picture after power on

Contact Pioneer at 1-800-421-1404 about getting an in-home power supply replacement. This is a known issue with some plasma displays. Some of you would experience a loud pop and then the power supply fails. You get a red light below the ON button, when you press on, the red light will turn green for a second and then back to red. The plasma display will not turn on after the power supply fails. Call Pioneer at 1-800-421-1404.
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Posted on Mar 29, 2009

  • 1 Answer

SOURCE: Phillips Flat TV Model 20pf4121\105 (Flashing green led)

electrolitic capacitors 1000mf /10 v in pover unit

Posted on Jan 02, 2010

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Sony bravia kdl55hx729 3d led tv turns on 3 seconds shows picture than four red flashes


Hello,
the error light sequence that you are seeing is indicating a "backlight error". Most likely you have a bad inverter board -the board that powers up the back-lights behind the display panel. They might be available via ebay if you are a DIYer, or you need to call for sony service.
Good Luck!
Rich Lilja

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No picture on mu LG television.


Try the old flashlight test, turn off the lights in the room. Turn on the set and flash a bright flashlight on the screen. Do you see the image or is the screen totally black?? If you see the image, then most likely you have a backlight problem. Verify that you have 24V on the power supply for the inverter

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This DX-LCDTV19 model will not allow the backlight to come on. When the power button is pressed, the blue power indicator light comes on, but no OSD or audio comes up. Also the set cannot be turned off. ...


No response to power switch and no picture but have power to the tv.The main tv Tuner signal board it is dead.Tries websites like Shopjimmy.com,Ebay.com to buy a whole new refurbish main tv Tuner Signal board for the replacement.

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No picture, when powering up the light will turn yellow, them the t.v powers up and can hear sound but no picture, and then hear a click and light flashes green.


First turn on,do the power LED light stable?Few sec.Power LED and LED OPC flashes?This very common on Sharp tv,tries power off/on at 4 or 5 each time it flashes,well power up have backlight on and it work.After this doesn't work than ur Tuner Signal board it dead.

Feb 03, 2010 | Sharp Aquos LC-42D62U 42 in. LCD HDTV

1 Answer

When I turn on the TV the blue indicator light comes on but there is no display, then the blue light starts blinking.


The following steps should be able to correct the problem:
1) Unplug the TV or remove AC power from the TV
2) Count to ten and then plug in the TV
3) Locate the [Menu], [VOL-] and [Power] button on the TV’s side panel
4) Using the buttons on the TV’s Side Panel, press and hold both the [Menu] and [VOL-] buttons.
5) While holding those buttons, press and release the [Power] button one time and count to 3 before releasing the [Menu] and [VOL-] buttons.
6) The TV’s lower left Blue Power LED will come ON.
7) Wait 30 seconds. Confirm that the blue LED on the Lower Left of the TV (not the iPod dock for iPod models) has remained ON during this time.
8) Press the [Mute] button on the TV remote twice
9) Unplug the TV or remove AC power
10) Count to ten and plug the TV in
11) The TV power should automatically come ON and the blue power LED with be ON
12) Wait 40 seconds and the TV picture should appear
13) You can now continue using your TV.
14) If the picture does not appear, power on the TV manually:
· If the LED begins flashing, unplug and power ON a second time.
· If the LED begins flashing again, power ON the TV without unplugging
If the LED begins flashing again, contact us directly by phone to obtain a local authorized service center for you.
If the TV does power on, please reply back with the software version number for us to research this issue. Please follow these steps to obtain the software version number:

1) Press the [Menu] button on the remote control.
2) Using the arrow keys in the center of the remote, scroll over to the "settings" menu and select the [OK] button on the remote
3) Scroll down to "system info" and select [OK] button on the remote

Dec 19, 2009 | JVC Televison & Video

2 Answers

I turn on the T.V. and the blue light is blinking and the T.V. doesn't turn on


1. simultaneoulsy press and hold [menu] and [vol-] on TV side panel
2. press and release [power] on TV side panel
3. count to 5 and release[menu] and [vol-]
4. TV should have turned on
5. if not, unplug TV and press[power]
6. repeat from step 1 if the TV does not power on the 2nd time

Jul 10, 2009 | JVC LT42P789 42 in. LCD TV

1 Answer

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If the power supply outputs are good! Then I would say the back light inverter is bad! If the screen stays black and does not come on.

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Samsung LTN226W 22 in....


I'll go through the basics that you can try yourself. It might be a problem with the backlighting, which usualy is very cheap to fix - take a flash light, dim the lights in the room and flash the light into the screen to see if theres any picture visible. If so then you're looking at a backlight or backlight inverter failure, like I said, cheap. second(or first) thing to try is changing the cables you have the TV connected with, they might not be seated well, or have some other problem. For a tutorial on changing the inverter click here: http://www.lcdpart.com/doc/inverter_installation.html BUT - have a warranty? don't touch it and take it back to the shop. Good luck

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