- How To Repair LED TV Backlight Problem – No PicturePosted 1 week ago
- How To Repair LED TV No Picture- Singer BrandPosted 6 months ago
- LED TV Repair- Cheap Replacement PartsPosted 7 months ago
- Not Common To See Dual Super Barrier Rectifier Breakdown When Under LoadPosted 8 months ago
- How To Solve No Power Problem In Haier LCD LED TV RepairPosted 10 months ago
- Singer 32″ Skyworth LED TV With Dim Display RepairPosted 1 year ago
- 42″ LG LED TV RepairedPosted 1 year ago
- Polytron LED TV RepairedPosted 1 year ago
- No Power In Toshiba LED TV RepairedPosted 1 year ago
One Vertical Or Horizontal Line Across LCD Monitor Screen
If you come across any LCD Monitor that have a permanent one vertical or one horizontal line across the LCD screen then most probably you need to replace the LCD Panel as both the problems can’t be repair due to the fault could be in the LCD driver IC, LCD Controller board or even the broken TCP package or problem with the TAB bonding.
One vertical or one horizontal line problem in LCD Monitor is totally different from when you are repairing the CRT Monitor. If there is one vertical line problem, you will be looking at the fault at the horizontal section or even with an open horizontal yoke coil (which is very rare) and if there is one horizontal line across CRT Monitor screen, then you will be concentrating on the vertical section. It could be a drj joints, bad vertical IC, missing supply IC, bad corresponding components or even missing the main waveform from the horizontal/vertical oscillator IC.
The problem in CRT Monitor is quite direct and you can solve the problem fast but this is different in the LCD Monitor as it contains more complex circuit as most of the signals running are digital signals. LCD Monitors have many databus lines carrying lots of digital signals. The conclusion is the only choice to solve the permanent one vertical or one horizontal problem is to directly replace the LCD panel.