TV picture dark, dim, or half-black? We fix it — in your home, across Chicagoland.

What backlight failure looks like

Backlight failure has a few common presentations — the specific one you’re seeing tells us which strips are out.

• Half the screen is dark. One edge of the panel (left or right, top or bottom) is noticeably darker. A failed LED strip on that side.
• Vertical or horizontal dark band. A band running across the picture. One strip in the middle has failed.
• Whole picture is dim. Multiple strips are partially failing. The picture is still there, just much darker than normal.
• Dark zones on mini-LED panels. On TCL QM-series, Hisense U8, and Samsung QN90 mini-LED TVs, individual local-dimming zones can fail. You’ll see persistent dark spots in specific areas.
• Black screen with audio. Shine a flashlight at the screen. If you can faintly see the picture through the dark, the backlight is completely out. If not, it’s a T-Con failure (different repair).
• Picture flashes on then goes black. Backlight protection circuit tripping — the TV detects the failed strip and shuts itself down to protect the rest.

Try these before you call

Backlight failure is hardware. There’s no software fix — but the flashlight test is worth two minutes.

1. The flashlight test. Turn on the TV. In a dark room, shine a flashlight at the screen at an angle. If you can faintly see a picture through the dark, that confirms it’s the backlight (not the T-Con or panel). If you can’t see anything at all, it’s a different repair.
2. Try a factory reset. Sometimes a settings glitch makes the picture look dim. A factory reset clears that. If the picture is still dim after reset, it’s the hardware.

What we do on the in-home visit

Our tech arrives with the right model-family backlight strips on the truck whenever we know in advance — tell us the brand, model, and size when you call and we can usually have the parts. We open the back, remove the panel, replace the failed strips, and reassemble. The repair is involved (the panel itself has to come out) but routine. Most backlight repairs are completed in the same visit.

Typical cost ranges

Prices include parts and labor. Final number depends on brand, size, and exact failure. We quote in writing before starting.

When repair doesn’t make sense

If your TV is over seven years old and needs a full backlight replacement (all strips, not just one or two), we’ll honestly tell you on the phone whether it makes financial sense vs. replacement. Single-strip and dual-strip repairs almost always pencil out; full replacements sometimes don’t on older sets.

What we service

All major brands — Samsung, LG, Sony, TCL, Hisense, Vizio, Panasonic, Sharp, Philips, Insignia, Toshiba, Element. LED, OLED, QLED, mini-LED, plasma, 4K, 8K. From 32″ bedroom sets to 85″ home-theater displays.

Service area

In-home service across Chicago and every suburb within a 45-mile radius, including Lincoln Park, Lakeview, Wicker Park, Naperville, Oak Park, Evanston, Schaumburg, Aurora, Joliet, and every town in between. Next-day appointments are typical.