Screen is black

SONIQ LCD TV REPAIR Blank flickering screen Energy ...

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https://www.youtube.com/watch?v=FUqdi7lwmcE
May 29, 2013 - Uploaded by WastedOne2
Fix ya Soniq Tv once loaded up hit menu button then channel + then ... SONIQ LCD TV REPAIR Blank flickering screen Energy Saving Mode Issue ... Easiest TV repair - How to Fix Power [TV turns off, freezes, or won't turn on] ... Common easy LCD TV fix: bad picture screen rainbow colors - Duration: 4:04.

No Image & Blank Black Screen Flashlight Test - YouTube

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https://www.youtube.com/watch?v=xUzCLgoSPGM
Sep 15, 2014 - Uploaded by ShopJimmy.com
LCD & LED TV Repair - No Image & Blank Black ScreenFlashlight Test - How to Fix LCD & LED TVs ... Most LED TVs will have a t-con board, a power supply board, a main board and an LED ..... SONIQ Australia 1,718 views.

Soniq PT42SH plasma TV power on. No back light and no ...

Video circuit is separate from the Audio circuit. The main controller may switch to Audio, but if the unit is damaged from a power outage; part of the circuit board may not function. Needs professional servicing.

Best to first if you have not done so---UNPLUG the set for several minutes and plug back to power to see if that fixes it (it does a lot of the time especially if you had a power outage).

Tv turn on now,does it have a flashes of picture only a few second than dies and than have only sound left?Yes,than the tv 2 long LCD inverter boards are dead.These 2 long LCD inverter boards are one to the left one to the right both must be replace.The 2 long LCD inverter boards job are to help the LCD screen panel to have a backlight to produced a picture.Tries websites like Shopjimmy.com,Ebay.com to buy those 2 LCD inverter boards for the replacement.

This TV also should have similar facility like 19" Tv. Try the menu, it may be in different name or classification. I do not suspect circuit fault. If you can access service menu code you can try. Better take assistance from service center. If you access service menu, do not for get to note down the values in each and every step.

Gateway 50" plasma tv #7005406 runs only in black and white after power outage. Menu screen still in color.

If you have dual tuner / PNP then follow Solution #1

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If you just has a power outage or after a move then give the following a try.

You have to go into the TV menu setup screen.


After a power outage the memory will go back to factory default.


Don't be surprise if it's display is not in English.


The black box is field for close caption (CC).

There are many transmission methods.

Go to the Close caption (CC) page and turn it off and save the setting.

go to the menu and see if the set is set to high power, if so change to low power , it may make a difference ...rob

Resetting the TV
If the buttons on the remote AND the buttons on the TV case do not work (channels do not change and you cannot open or navigate the menu), the TV has stopped responding. Reset the TV as follows:

NOTE:
Some TVs have a reset button. If available and accessible, try using the reset buttons before using the steps below. Using the reset buttons can save time.
1. Unplug the TV power cord from the power outlet.
2. Unplug any connected devices (DVD, Set-top boxes, etc...)
3. Press and hold the TV power button for five seconds.
4. Plug the TV power cord back into the power outlet and turn on the TV.
5. Open the on-screen menu to confirm that the TV is responding again.
6. Turn off the TV and reconnect the devices.
7. Turn on the TV.



LCD TV TroubleshootingThe defective LCD TV may have the following common symptoms:

Symptom: No picture on screen but LCD TV still has sound.
Solutions: The problem is cause by defective inverter. Replacing ivnerter will solve hte problem. Symptom: Screen flash on and off between 1/2 to a few seconds, but power indicate light stays on and TV still has sound.
Solutions: The problem is cause by defective inverter. Symptom: Blue Screen but no picture
Solutions: The problem is cause by defective Main Board(AD Board). In some cases, this problem may cause by the defective Screen Controller board. Thsi board is mounting on teh back of LCD TV Scree. Symptom: Power light stays on but no display and sound
Solutions: The problem is cause by defective Main Board(AD Board) or Power supply board. Symptom: No Power or Power indicate light does not lits
Solutions: The problem could cause either by defective Power supply board or defective Main Board(AD Board). Symptom: Screen is half dim and half bright
Solutions: The problem is cause by defective LCD Panel.It needs to be replace.


Hope it may help you;

Regards;
VOTIT

ck all cables.