Hello I have a Samsung UN55MU630DF television. I have tested the power supply and getting good reading on my voltages. 12.2 and 3.34. I replaced the main board because initially it would not even come on. Now the back lights flash on and off in a cycle. No T-Con but did replace ribbons from main to panel.
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Re: Un55mu630df
Can you throw up some good clear pics? -
Re: Un55mu630df
Here are some pictures of the boards.Attached FilesComment
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Re: Un55mu630df
Can you give the voltage readings on the 12 way connector CNM803 (blurry so hard to read) and the legend name alongside it.Willing to help but I'm no expert.Comment
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Re: Un55mu630df
CNM803
Pin 1 - .01V
Pin 2 - 3.21V
Pin 3 - 12.67V
Pin 4 - 3.47V
Pin 5 - 12.67V
Pin 6 - 3.15V
Pin 7 - 12.67V
Pin 8 - 4.41V
Pin 9 - 12.67V
Pin 10 - .01V
Pin 11 - .01V
Pin 12 - .01VComment
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Re: Un55mu630df
Can we please get the name of each pin?Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809Comment
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Re: Un55mu630df
Without the legend corresponding to the pin numbers the readings are not much use.Attached FilesWilling to help but I'm no expert.Comment
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Re: Un55mu630df
This is what I got.Attached FilesComment
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Re: Un55mu630df
So ALL the control signals are all stable while the Backlights are flashing?Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809Comment
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Re: Un55mu630df
What happens if you unplug the main board from the PSU, then plug the TV in? Back lights should turn on and stay on.Comment
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Re: Un55mu630df
Yes if I unplug the main board from PSU backlights come on and stay on.Comment
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Re: Un55mu630df
What's going on? I can't start a thread? I don't have permission to check my own stats.Comment
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Re: Un55mu630df
It says I have 1 post, but I've made hundreds of the years.Comment
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Re: Un55mu630df
Looks and acts like mainboard but seeing how bad these samasungs are, I think it's the powersupply.Last edited by nomoresonys; 05-09-2018, 09:22 PM.Comment
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Re: Un55mu630df
Check all your diodes and resistors.Comment
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Last edited by budm; 05-09-2018, 09:48 PM.Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809Comment
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I suppose the real question is whether the existing pinouts from ether a 17IPS71 psu are cross compatible with a 17IPS12 psu? If they are then the exchange of the main boards should have no issues providing the screen is compatible with both main boards. Obviously you can change the screen configurations easily enough (providing you have the correct files) for the main board. Why may you ask would I do this? Well a lot of the smart features are no longer working on a Hitachi 48HBT62U main board I wish to give it a new lease of life!
Obviously the same LVDS connector for the screen connection... -
Hi and thanks in advance for any input you might provide!
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Main power board model: TP.MS3683.PC821 T-Con board: N4TP546UHDPU2L_BO
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Hoping someone here could possibly help. I have a few questions in regards to compatibility with main boards. But I'll give a quick short run down on what's going on first;
I have Samsung Smart TV UA65MU6100WXXY version DA01
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Hey guys great forum glad to have found it. I bought a Sony XBR 65X900C cheaply because it didn't work. No signs of life at all not even a light/led. All I hear is a brief high voltage sound when I throw the power to it.
Didn't see any obvious signs of damage so right away started checking voltages. This is what I see:
Power Board Connector that goes to Main board
CN6401
Pin 01 NC
Pin 02 NC
Pin 03 "BL_ON": 0V
Pin 04 "N/C"
Pin 05 "STBY 3.3V": 3.5V
Pin 06 "GND": N/C
Pin 07 "AC_OFF"... -
This thread is about trying to get an Universal Main Board to work with a Sharp TCON and panel.
I have a Sharp LC-46D85UN TV that has had a main board issue. Since this model is from 2009, I am not able to find an exact replacement of the main board. Instead, I decided to see if I can future proof this tv by getting a Universal Main Board (T53U21.2) from China to work with the Sharp TCON (CPWBX4291TPZA) and panel. The universal main board supports a 8 bit dual channel LVDS interface whereas the TCON requires a 10 bit dual channel LVDS input. I have modded the LVDS connector to match...
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