Samsung UE46B6000 problems.

[Brolsk]

Hello, my first post here

I recently acquired a TV from a friend who didnt have time to fix it, so i took it upon myself to try it as i need a tv for my gamingroom.

Tech info
Mainboard: BN9402662B
PSU: BN44-00269A
Firmware: T-CHL5DEUC-2009.0

The TV starts up fine, one click from the PSU and displays a picture.
On the source list i see HDMI ports hopping in and out like im putting in and pulling out a cable.


When i try to connect a HDMI it registers it but no signal.
It also turns off and on again at random intervals, sometimes it can run fine for 5-10 min and then it goes off and on. Sometimes just a min after i turn it on it happens.

I`ve opened the TV, checked all the capacitors on the PSU and they seem fine. No bulging, measures according to marking and so on.

When i disconnect the mainboard and start it the backlist comes on, so i focused on the mainboard.

Took it out and visually inspected it, couldnt see anything special. Put it back in and measured the voltage regulators ( 3 i found )

1117 - 0910JG
P1: 3.7v
P2: 5v
P3: 8.89v

17-33 0907LG
P1: 0v
P2: 3,3v
P3: 5.1v

178M08
P1: 12,6v
P2: 0v
P3: 8v

Pictures will be added when i get home from work, around 2-3 hours.
Hopefully you can help me with tips as to how to continue

[Brolsk]

Re: Samsung UE46B6000 problems.

Pictures as promised

[Brolsk]

Re: Samsung UE46B6000 problems.

Measured the voltages coming from the PSU to the Mainboard.

1: 0,85v
2: 0v
3: 5,3v
4: 0v
5: 0v
6: 0v
7: 12,6v
8: 12,6v
9: 0v
10: 0v
11: 0v
12: 0v
13: 5.29v
14: 5.29v
15: 5.2v
16: 5.2v
17: 0v
18: 0v
19: 12.6v
20: 0v
21: 12.6v
22: 12.6v
23: 2.9v
24: 0v
25: 4.2v
26: 0v
27: 4.8v
28: 0v
29: 0v
30: 0v

[Moreno83]

Re: Samsung UE46B6000 problems.

Could you provide a picture of the back of the mainboard? I think this model applies for a repair kit on shopjimmy. Its a IC that needs to be replaced , thats causing the tv to turn on/off randomly.

[Brolsk]

Re: Samsung UE46B6000 problems.

Will upload a picture as soon as i get home

[tom66]

Re: Samsung UE46B6000 problems.

Try disconnecting the touch button panel and using the remote only (IR sensor may be separate?)

[CapLeaker]

Re: Samsung UE46B6000 problems.

get a new main board.

[Brolsk]

Re: Samsung UE46B6000 problems.

Tried disconnecting the touch panel, and the IR sensor is not separate

[Brolsk]

Re: Samsung UE46B6000 problems.

get a new main board.

Yeah, will be doing that if i cant figure out whats causing this

[Brolsk]

Re: Samsung UE46B6000 problems.

Added a picture of the mainboard backside

[Shinju]

Re: Samsung UE46B6000 problems.

Did you try updating the Firmware? I had a 8000 series not register any HDMI connection so I thought it was the main-board and was about to pull the trigger on a used one and decided to check to see if Samsung had released a FW update and there was one.

I installed it and boom all 4 HDMI ports functioned perfectly and now the new owner could not be happier.

[Brolsk]

Re: Samsung UE46B6000 problems.

Checked and it had an update available, upgraded but still no difference.
Also i noticed i dont have any sound, not on startup/shutdown or when i ran the selftest.

[CapLeaker]

Re: Samsung UE46B6000 problems.

I figured so... not much you can do, besides getting a new main board. I never had any much luck fixing anything more serious by just updating the firmware.

[Brolsk]

Re: Samsung UE46B6000 problems.

Hm ok, ill see if i can find a used one online. Interested in response from Moreno83 regarding the IC thingy also

[CapLeaker]

Re: Samsung UE46B6000 problems.

Well... SJ doesn't list your TV nor your mainboard, since you are in Norway.

[Brolsk]

Re: Samsung UE46B6000 problems.

I think UN46B6000 is the non europe version of it

[Moreno83]

Re: Samsung UE46B6000 problems.

The fix that i mentioned applies for alot of models.

https://www.youtube.com/watch?v=oC4f2Ik8rCI , maybe you can search the net and see if your mainboard has the same issues. Or has this same chip!

My own led tv also shuts itself down with a 5 blink ( double blink ) , Still have not fixed it yet but mine is from 2012.

[Brolsk]

Re: Samsung UE46B6000 problems.

Thanks for the answer, will check it out. For some reason i cant access shopjimmy :s

[Moreno83]

Re: Samsung UE46B6000 problems.

Same here , getting a access denied! You need to find out what kind of IC it is and see if you have the same on your mainboard.

[Brolsk]

Re: Samsung UE46B6000 problems.

Trying to track down a mainboard for this but having no luck. Anyone know where i can find a decently priced one?