Sony TV 5 Blinking Red Lights – Meaning, Causes & Fix
Sony TV 5 blinking red lights — where the standby LED on the front of a Sony Bravia TV blinks 5 times in a repeating sequence — is a hardware self-diagnostic fault code indicating a specific internal problem. Sony Bravia TVs use a blink code system where the number of standby LED blinks identifies the failed subsystem with reasonable precision, similar to a furnace control board blink code. On Sony Bravia models, 5 blinks specifically indicates a T-Con board fault or a panel/backlight fault, depending on the model year and series. This means the TV's timing controller — the board responsible for driving the LCD panel with image data — has encountered a fault, or the LED backlight system has a failure that prevents normal operation. This guide explains what 5 blinks means on Sony Bravia TVs, all possible causes, and the full troubleshooting process. For related TV blink code issues, see our LG TV Red Light Blinking guide and our Vizio TV White Light Blinking guide.
What it means
Sony Bravia 5 blinks indicates a T-Con board fault or LED backlight system failure. The TV cannot display an image due to a failure in the panel drive or backlight circuit.
Severity
HighCan you fix it yourself?
Partial — power cycling and reseating internal cables can resolve some 5-blink faults. T-Con board or backlight replacement requires professional service.
Call a technician when
Contact Sony Support if 5 blinks persist after a full power cycle and the TV does not display any image.
What Does 5 Blinks Mean?
Sony Bravia TVs use the standby LED blink count as a diagnostic signal. The TV blinks a specific number of times, pauses for 3 seconds, then repeats.
Sony Bravia blink code reference (common models): - 2 blinks: Power supply fault - 3 blinks: Main board fault - 4 blinks: Sound processor fault - 5 blinks: T-Con board or backlight (inverter) fault - 6 blinks: System (main board) fault - 7 blinks: Backlight fault (specific to some LED models) - 8 blinks: Panel fault
5 blinks specifically points to: 1. T-Con board failure: The T-Con (Timing Controller) board interprets signals from the main board and drives the LCD panel's row and column drivers. A failed T-Con produces no image or a distorted image. 2. LED backlight failure: The LED backlight strips or backlight driver board has failed. The TV may have sound but no visible picture (screen appears black or very dark). 3. Ribbon cable fault: A loose or damaged ribbon cable connecting the T-Con to the LCD panel causes the T-Con to fault and report an error. 4. Panel failure: In some cases 5 blinks indicates the LCD panel itself has failed internally.
Note: Blink code meanings can vary between Sony Bravia model lines (X, A, Z, W series). Always verify the blink count for your specific model at sony.com/support. This system is similar to the LG TV Red Light Blinking diagnostic system.
What Causes This Error?
- T-Con board failed — timing controller not driving the LCD panel correctly
- LED backlight strip(s) failed — one or more LED strips in the backlight array have burnt out
- Backlight driver board fault — not delivering correct power to LED strips
- Ribbon cable between main board and T-Con loose or damaged
- Ribbon cable between T-Con and LCD panel loose or making poor contact
- Power surge damaging the T-Con or backlight driver board
- Overheating of T-Con or backlight board due to blocked ventilation
- LCD panel failure — internal panel component fault
How to Fix 5 Blinks
- 1
Count and confirm the blink pattern. Watch the standby LED carefully. Count the blinks: 5 blinks, a 3-second pause, then 5 blinks again. Confirm the count multiple times. Also verify the blink code meaning for your exact Sony Bravia model number at sony.com/support — the meaning of 5 blinks can differ slightly between model lines, especially older LCD models vs. newer LED/OLED models.
- 2
Perform a full power drain and restart. Unplug the TV from the wall outlet. Wait 60 seconds. While unplugged, press and hold the physical power button on the TV (not the remote) for 30 seconds. This fully discharges the capacitors in the power supply and T-Con board, clearing transient fault states. Plug back in and power on. Some 5-blink faults are caused by a temporary T-Con initialization error that clears after a full power drain.
- 3
Test for backlight failure. In a dark room, power the TV on and shine a bright flashlight at the screen at an angle. If you can faintly see the TV menu or image behind a completely black screen, the backlight has failed but the T-Con and panel are working. This confirms a backlight strip or backlight driver fault rather than a T-Con failure — important for guiding the repair.
- 4
Attempt a soft factory reset. On some Sony Bravia models that partially boot (showing a faint image), access Settings > Device Preferences > Reset or use the remote: press Home, then navigate to Settings > About > Factory Reset. If the TV responds to remote commands even with a dark screen, a factory reset can clear firmware-related faults that cause 5-blink errors on newer Bravia Android TV models.
- 5
Check and reseat ribbon cables (advanced). If you are comfortable opening the TV back panel, the most accessible repair for 5-blink faults is reseating the ribbon cables between the main board and T-Con, and between the T-Con and the LCD panel. Disconnect the power fully and wait 5 minutes before opening. Gently lift the ribbon cable lock tabs, remove each cable, inspect for damage, and re-insert firmly before re-locking. This resolves many 5-blink faults caused by thermal expansion loosening cable connections.
- 6
Contact Sony with the model number and blink count. Locate the model number sticker on the TV's back panel. Contact Sony support with the model number, the exact blink count (5), and whether you confirmed backlight failure via the flashlight test. Sony support can confirm if your model has a known T-Con or backlight issue covered by a service bulletin or extended warranty program.
When to Call a Professional
Sony Bravia 5-blink faults confirmed as T-Con board failure or backlight strip failure require board-level repair. T-Con board replacement is the most common professional repair for this fault. Contact Sony support at sony.com/support or 1-800-222-7669. Sony provides in-home service for TVs 46 inches and larger. T-Con board replacement costs $80–$200 for parts; $150–$400 including professional labor. LED backlight strip replacement costs $50–$150 for parts but requires full TV disassembly.
Can You Still Use the Device?
A Sony Bravia TV with 5 blinking red lights will not display any picture and cannot be used for viewing. The TV hardware is in a fault state. Do not leave the TV in a continuous restart loop — unplug it until the fault is diagnosed and resolved.
See Also
Official Resources
Related Error Codes
Disclaimer: This article is for informational purposes only and does not constitute professional repair advice. CodeExplain is not affiliated with Sony or any other brand mentioned. Always consult a qualified technician for complex repairs.