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Smart tv with 3D 1080 display.

No colour on TV

No colour on TV

Answer this question I have this problem too

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@dhom65070 try all video inputs. If you are using HDMI change the HDMI cable. If any of this should still not show your image in color, then I would consider replacing the T-con board.

The GAMMA IC which is responsible for your color has most likely failed. Your Toshiba uses a V420HK1-CS5 T-con board. It looks like this

Block Image

and connects between the main board and the LCD panel

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