SAMSUNG UN50EH5000 dead no power

[JohnO FL]

It looks like it dead when i plug it in no pic no sound no red light on the power button. i checked the outlet, it has power, i checked the power cord on another TV and it worked. I replaced the 3 boards in the TV, the power board, main board, and T con. still no lights anywhere. Any ideas on what it could be?

[Andrew F. Ali]

Re: SAMSUNG UN50EH5000 dead no power

Unplug the cable from the Power Bd to the Main Bd. Plug in TV to AC. Do the backlights come on?

[JohnO FL]

Re: SAMSUNG UN50EH5000 dead no power

no, they did not.

[ReeceyBurger123]

Re: SAMSUNG UN50EH5000 dead no power

Psu faulty then, also make sure you have DC V across the fioter caps. Throwing boards at it is pointless and a waste of money you need to diagnose it.

[dskall]

Re: SAMSUNG UN50EH5000 dead no power

Need good clear sraight on pictures of back of tv with cover off and each board.
Need voltages from connector that goes from power supply board to main board. Will need pin#-pin label-Pin voltage in standby-Pin voltage when pushing power button and picture of connector on power supply board.
Format:
Pin# - Pin Label - Pin Voltage standby - Pin voltage power on
1 - XXXXXXX - XXv - XXXv
2 - XXXXXXX - XXXv - XXXv
3 - XXXXXXX - XXXv - XXXv
4 - etc.

[budm]

Re: SAMSUNG UN50EH5000 dead no power

need good clear sraight on pictures of back of tv with cover off and each board.
Need voltages from connector that goes from power supply board to main board. Will need pin#-pin label-pin voltage in standby-pin voltage when pushing power button and picture of connector on power supply board.
Format:
Pin# - pin label - pin voltage standby - pin voltage power on
1 - xxxxxxx - xxv - xxxv
2 - xxxxxxx - xxxv - xxxv
3 - xxxxxxx - xxxv - xxxv
4 - etc.

+10

[Andrew F. Ali]

Re: SAMSUNG UN50EH5000 dead no power

Could be PSU issue or Backlights issue....I would think it is the latter...However, it could be a combination of both........We do need the information dskall asked for to make a proper determination.

[petehall347]

Re: SAMSUNG UN50EH5000 dead no power

main supply fuse might be blown on both power boards . check with your meter with power removed .