How To Repair LCD TV Live Briefly And Then Die Again

Example problem:

LCD/LED TV

If the power button is turned on, the red indicator light will turn green wait several moments later raster turned on, but only briefly and then switches itself off and the Red flame indicator

Initial Examination Steps

If observed carefully, at a time when a raster screen seemed to light up the bottom a little bit darker than the middle and upper part of the screen. Bachlight the CCFL lamps gave the bottom does not light up so that causes the current to die protection.

Solution

- Once the rear cover is opened, it appears that this model uses CCFL lamps 6 pieces (3 pairs)

- Each pair of lights being lit by a tranfo inverter

- Just do the measurement of the resistance of the secondary at the entrance to the CCFL lamp on each tranfo. It turns out that tranfo CCFL inverter powering the bottom gets measurable higher if compared to the other.

- Just try off the tranfo, try using just 4 pieces of lit lights CCFL, if the device is turned on, the TV can not die alone again, try to check the solderan feet are all the transformers, there must have been a dry and despite the lead.

The following conclusion lightly damage that often occurs on the LCD/LED TV and you can repair it yourself. In case of repair or LCD hopefully this article can help you and may be useful

INFO, MENU, MUTE, POWER ON

Image slow

- Damage to the LCD panel. By the way preccing section of the screen edge sometimes images can be nice.

- It often happens at the panel LTA320WT-L05

The color is not normal, slow motion

- Try the eeprom or replace the T-con

- LCD panel is broken

The picture negative/cliche

- Replace the eeprom

- Reset eeprom

Image flawed after heat

- Damage to the LCD panel

Half of the screen is a bit dark

- Damage to the LCD panel

Raster dark, backlight ok, sounds normal

- Check the fuse on T-con board

- T-con board defective (try the hot forced first)

After replace elko on the PSU   Raster rather dark, brightness flicker, only the image size increased noise, can not be tuning

- Enter service menu

- Then Reset-On

When first turned on there is a disturbance of the 2 horizontal, sometimes white, sometimes freeze-time pictures normal

- LCD panel Problem

- Problem loose contact flatwire dg lcd panel (if collapsible ditekan-tekan normal)

Disorders such as old image looks like it still made an impression

- Replace the T-con

Color faded (not normal)

- Loose contact between the T-con with the LCD panel. Fix connector

- Damage to the T-con (one of the lines to the panel do not work/not connect)

- Damage to the LCD panel (one of the lines to the T-con does not connect)

Detail of the picture is not smooth, but like trotol-trotol large round, almost similar to a mosaic

- Enter – Reset serive menu-on

- Try to add Sub adjustment brite

Back light living-dead

- Soldering is broken feedback tranfo high voltage

No picture, just a blue screen with the interruption of short horizontal lines

- LVDS Cables loose contacts

Stand-by

- Change elko2 on the psu (cause damage)

- Replace the eeprom

The TV is on or off by itself

- Make sure the elko-2 power suply nice

- In service mode

- Adjust Parameters READY

TV switches itself off sometime

- Try to replace the LVDS cable

- Living dead himself after the melody sound

- LVDS cable-try off from T-con, If can live continues to replace the T-con

- LVDS cable-try off from main-board, if it could replace the LVDS cable lives on

- If still problem, main board defective,

Appearing thin vertical lines:

- T-con flatwire slightly loose contacts

If the code is blinking 4 x

A secondary part of the elko Malfunction-PSU

To repair the damage to the LCD TV screen on different brands of either LCD TV Samsung, LG, Toshiba LCD TV brand or another, the following steps

1. To fix the screen is damaged, it is necessary to turn off the TV, unplug the power supply and place it face down on the table work with caution.

2. Using a screwdriver unscrew all fasteners from television and also release the rear panel of the unit. and it would seem obvious that the motherboard is located in the center of the TV behind the scenes.

3. You will see a Board inverter mounted on the tip side of the motherboard. open all screw inverter that expose the entire unit.dan here there will be a lot of wires that connect to a variety of pcb. which will then transmit the power to the LCD screen.

4. The first job You do is, check all connections from the inverter Board to see if they are properly connect or not. If not, unplug the cable and insert them back into the inverter Board. then see if it works, if not, then go to the pcb-related screen LCD TV

5. Open all fasteners, and remove the lcd screen of the TV sets, 

6. Now do the turn of the old with the new lcd screen. and do not forget to mark the position of the connection cable. so that does not blend with the other cable and then attach all screws back in place. Finally, cover the back of the inverter with the back panel of the television carefully.