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Your television is one of the most used electronics in your home. Whether it is a Samsung,
LG, Sony, or any other brand, every TV will eventually show signs of wear. The question
is: when do you call a professional, and when is it safe to wait? As the leading LED TV
repair specialists in Sharjah, we have repaired over 5,000 televisions at our Muwaileh
Commercial workshop. Here are the seven warning signs that mean your TV needs professional
attention, based on the most common issues we diagnose.
1 Horizontal or Vertical Lines on the Screen
If you see persistent horizontal or vertical coloured lines running across your TV screen,
this typically indicates a failing T-Con board, damaged ribbon cables, or a deteriorating
LCD panel. While a single thin line might seem minor, it almost always gets worse over
time. Ignoring it can lead to complete panel failure, which is significantly more
expensive to repair.
2 The TV Turns On But Shows No Picture Sound Only
When your TV produces sound but the screen remains black or extremely dim, the most common
cause is a failed LED backlight array. This is one of the most common repairs we perform
at Al Najma Al Fidhia. The backlight strips inside your TV have a limited lifespan and can
fail due to power surges, which are common in Sharjah during summer months when the
electrical grid is under heavy load
3 The TV Will Not Turn On at All
A completely dead TV usually points to a failed power supply board. Before assuming the
worst, check your power outlet with another device to rule out a socket issue. If the
outlet works fine but the TV remains dead, the internal power supply capacitors may have
failed. This is a straightforward repair for a qualified electronics engineer and
typically takes 1 to 2 hours with genuine replacement parts
4 Flickering or Flashing Screen The One You Should Never Ignore
This is the warning sign most people dismiss as a minor annoyance. A flickering screen can
indicate several problems, from a failing backlight inverter to a deteriorating main
board. The reason you should never ignore this symptom is that flickering often indicates
an electrical issue that can worsen suddenly, potentially damaging the panel itself. What
starts as a cheap capacitor replacement can become a full panel replacement if left
unaddressed.
At Al Najma Al Fidhia, we diagnose flickering TVs using professional oscilloscope testing
to identify the exact failing component. This precision approach means we fix the root
cause, not just the symptom, which is why we confidently offer our 180-day warranty on
every TV repair Unusual Buzzing, Humming, or Clicking Sounds
5 Unusual Buzzing, Humming, or Clicking Sound
If your TV produces buzzing, humming, or clicking sounds that were not present before, do
not ignore them. A buzzing sound often indicates failing capacitors on the power supply
board. Clicking typically means the TV is repeatedly trying to start but a protection
circuit is preventing it due to a detected fault. These sounds are your TV telling you
something is failing internally.
6 Discolouration, Dark Spots, or Clouding on the Screen
Dark patches, clouding effects, or areas of discolouration on your screen indicate issues
with the backlight diffusion layers or the panel itself. In many cases, this can be resolved by replacing specific backlight strips or re-seating the diffusion sheets.
However, this requires careful disassembly by an experienced technician. Attempting this
yourself risks damaging the fragile LCD panel.
7 Smart TV Features Stop Working or Apps Crash
If your Smart TV’s apps are crashing, the WiFi connection drops frequently, or the
operating system feels sluggish, the issue might be a failing main board or insufficient
memory. In some cases, a factory reset resolves software issues. But if the problem
persists after a reset, the main board likely needs professional diagnosis. Our
technicians can test each component to determine whether a repair or board replacement is
the most cost-effective solution
Why Choose Al Najma Al Fidhia for TV Repair in Sharjah?
- 180-day warranty on every repair, covering parts and labour.
- Genuine manufacturer replacement parts only. No cheap substitutes.
- Same-day diagnosis for most issues. Many repairs completed within 24 hours.
- All major brands: Samsung, LG, Sony, TCL, Hisense, Toshiba, Philips, and more.
- Transparent pricing with no hidden fees. You approve the quote before we start.
- WhatsApp photo diagnosis: Send us a photo of your TV’s issue and we will provide apreliminary diagnosis remotely.
Book Your TV Repair Today
Do not wait until a small issue becomes an expensive problem. Send us a WhatsApp message
with a photo of your TV’s problem, and our team will respond with a preliminary diagnosis
within 30 minutes during business hours.
WhatsApp a photo: +971 56 981 5611
Workshop: Muwaileh Commercial, Sharjah