BLINK 6X
LG TV & Audio · 55UQ7570PUJ 55" Class UQ75 Series 4K UHD Smart TV
Standby LED blinks 6 times — main board cannot communicate with T-CON board. Check ribbon cable(s) between main board and T-CON — may be loose or damaged. If cables are secure, T-CON board has failed. TV may turn on with audio but blank, distorted, or flickering screen. T-CON boards are relatively inexpensive ($30-80).
Error BLINK 6X on the LG TV & Audio 55UQ7570PUJ 55" Class UQ75 Series 4K UHD Smart TV means: T-CON Board Communication Error. The top-ranked community fix is “Replace the T-CON Board” (medium difficulty, ~45 min, DIY cost: $0). 2 community-ranked fixes available below.
Published February 2026 · 2 fixes · tv
Content is based on manufacturer service documentation, community repair experience, and OEM technical bulletins. Always verify with your owner's manual.Learn about our editorial standards.
While many tv repairs can be done safely at home, consider hiring a qualified technician if:
Average professional repair cost for this issue: $130-$200.
tv · 2 fixes
tv · 2 fixes
tv · 2 fixes
tv · 2 fixes
tv · 2 fixes
tv · 2 fixes
App Freezes or Crashes
Audio Out of Sync with Video
Backlight Bleeding / Clouding
LED Backlight Strip Failure — No Picture
LED Backlight Strip Physical Failure
Horizontal or Vertical Banding
Power Supply Overcurrent / Short
Main Board Failure
The LG TV & Audio 55UQ7570PUJ 55" Class UQ75 Series 4K UHD Smart TV has 8 other known error codes:
Error code BLINK 6X also appears on 6 other LG TV & Audio models:
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