Tuesday, 2 February 2021

SAMSUNG LCD TV UB6V, UB7W TROUBLESHOOTING. NO VIDEO, NO SOUND, NO POWER, NO VIDEO CVBS, NO COMPONENT

Samsung UE**B6000VWXXC, UE**B7000WWXXC, UE**B7020WWXXC-43 ,46 and 55 inch LCD TVs

Check List for Initial operation

Power cord in to the set
Power switch on
You can sound SMPS relay
* If you can’t sound, check the STB_5V appear at BD229 in main board Back-light on
* If back-light not on, check the main board power line And check the dimming cable Picture on or display the banner
* If display is nothing, check the LVDS cable And LVDS clk/data line

Inform to change the Assembly

Check the Side-Label Ver. in set (important)
Order to the item with Side-Label Ver.
If you change the item, see the service-bulletin for setting the factory option.

Inform about error messages

If set is connected internet and software is old version, popup below message.
“ version XXXXX is available, upgrade?”
And select OK, you can update your LCD TV.

Panel or Main?

No Power

No video analogue PC

No video HDMI

No video Tuner-CVBS

No video Tuner DTV

No video CVBS

No video Component

No sound