Re: Samsung LED TV UN55D6000SFXZA Pwr Sup Board BN44-00424A
Okay no problem, I'll try to figure it out.
johnk_13
Member
Last Activity: 04-13-2015, 08:12 AM
Joined: 01-06-2015
Location: Barrington IL
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Re: Samsung LED TV UN55D6000SFXZA Pwr Sup Board BN44-00424A
Thanks, would you know of a document or maybe a youtube video that shows how to get at the LED strings?Leave a comment:
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Re: Samsung LED TV UN55D6000SFXZA Pwr Sup Board BN44-00424A
Here are the voltage measurements:
CP806 = 398V
PS-ON = 3.39V
BL-ON = 5.08V
The backlight is not on with these voltages. Do you think it is the LED string?Leave a comment:
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Re: Samsung LED TV UN55D6000SFXZA Pwr Sup Board BN44-00424A
Okay thank you. So it looks like in addition to removing the back cover I have to take the display/screen apart. Any tips on doing this for the UN55D6000 and is this hard to do?Leave a comment:
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Re: Samsung LED TV UN55D6000SFXZA Pwr Sup Board BN44-00424A
Okay here are the voltage levels at the CNL802 connector. I will measure cap CP806 tonight and get back to you.
pin 1 = 308V
pin 3 = 187V
pin 5 = 187V
pin 7 = 69.5V
pin 9 = .633V
pin 10 = -2.7mV
Here are the levels with connector CNM803 unplugged:
pin 1 = 320V
pin 3 = 199V
pin 5 = 199V
pin 7 = 81V
pin 9 = .631V
pin 10 = -0.3mVLeave a comment:
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Re: Samsung LED TV UN55D6000SFXZA Pwr Sup Board BN44-00424A
Thanks for the responses. I will measure the voltages on the CNL802 connector tonight and get back to you. Where are the two pull-up resistor test points to measure the PS-ON and BL-ON?
I did unconnect the CNM803 connector a while back after I installed the new BN44-00424A board and no back light turned on.Leave a comment:
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Re: Samsung LED TV UN55D6000SFXZA Pwr Sup Board BN44-00424A
Does anyone know what the voltages should be on the Power Supply board connector going to the screen/display? I believe this is what powers the LED backlight. Thanks.Leave a comment:
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Re: Samsung LED TV UN55D6000SFXZA Pwr Sup Board BN44-00424A
Sorry for not responding sooner but I was traveling all last week. The two boards are narrow and long and are on the bottom of the unit as shown in last picture (but they are covered by a metal plate). The first two pictures are the numbers off these boards.Leave a comment:
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Re: Samsung LED TV UN55D6000SFXZA Pwr Sup Board BN44-00424A
Thanks for the help. Yes it is the BN-44-00424A Power Supply board. Attached are four pictures....Leave a comment:
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Re: Samsung LED TV UN55D6000SFXZA Pwr Sup Board BN44-00424A
I replaced the PS board and now have power. However there is still an issue and not sure if it's the PS board I installed or something else. So now my UN55D6000 TV has sound but a black screen with images that can be barely seen. Would this be a problem with the Power Supply board or the Inverter boards (left & right). From a youtube video, I unplugged the connector from the main board to the PS board and the screen was still black. I also unplugged the left inverter and still a black screen. I then reconnected the...Leave a comment:
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Re: Samsung LED TV UN55D6000SFXZA Pwr Sup Board BN44-00424A
This seems like a common problem with these TV's/boards. Can you tell me the component number of the switching transitor and IC that could go bad when this issue occurs? Thanks!Leave a comment:
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Re: Samsung LED TV UN55D6000SFXZA Pwr Sup Board BN44-00424A
Did you ever resolve this problem? I have the same issue. I was planning to replace the the cap and the fuse. Let me know when you get a chance, thanks!Leave a comment:
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