TV has 2 strings of LED backlight. 1 string had 1x LED failure. Replaced all LED light bar (thought about replacing just 1 bar but new bar LED color more white compared to old)
The large screen and HiSense reflector paper assembly presented some challenges over the smaller screens.
- 75" TV is huge, need 2x large work surface (1 for TV, 1 for LCD panel)
- White reflector paper in the tub is secured by 10 columns and 1 row (on top the tub) of double sided sticky tape. Took awhile (need to go slow to avoid/minimize damage) to remove with minimal damage.
- LED bars are glued down so need to have double sided tape to mount new LED bars. I just use small pieces of Tesa tape near the black glue points.
- Putting the reflector paper back properly has some challenges. double sided sticky tape is less sticky on 2nd use. Tub need to be evenly supported on a flat surface (I removed all boards and cables and lay it on a mattress) so the paper goes in flat and even. If not, will have LED bright spots presumably from uneven reflector paper install.
The large screen and HiSense reflector paper assembly presented some challenges over the smaller screens.
- 75" TV is huge, need 2x large work surface (1 for TV, 1 for LCD panel)
- White reflector paper in the tub is secured by 10 columns and 1 row (on top the tub) of double sided sticky tape. Took awhile (need to go slow to avoid/minimize damage) to remove with minimal damage.
- LED bars are glued down so need to have double sided tape to mount new LED bars. I just use small pieces of Tesa tape near the black glue points.
- Putting the reflector paper back properly has some challenges. double sided sticky tape is less sticky on 2nd use. Tub need to be evenly supported on a flat surface (I removed all boards and cables and lay it on a mattress) so the paper goes in flat and even. If not, will have LED bright spots presumably from uneven reflector paper install.
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