Samsung UE32ES6100WXXN. Not working, No Standby light

[MartijnG]

Hello All,

I got a strange problem with my Samsung TV UE32ES6100WXXN.
PSU model = BN44-00517A
Main board model = BN41-01812(A)
TCON board model = BN41-01789A
Living in Europe

Observation:
No standby light when plugged into the power.
TV won't power on, with remote or button on tv.

What probably happend:
I was messing with the service menu, didn't change parameter.
Then somehow the menu was frozen so i disconnected the power.
Plugged in again (some sparks) and it didn't turn on.

Troubleshooting:
- First inspection for bad capacitors/damaged or burned spots = CHECKED AND OK

- Check the incoming voltage on the PSU. Measured at the two parallel big caps (100uf 450V) = 320V = OK (230V powerplug * √2 = 325V)

- Check control voltage. Measured at the connector cable between the PSU and Main. (CNM803). = All 0V except A5V = 5.4V and Power on/off = 0.25V

- Checked for hot components on the PSU. = All OK

- Plugged the main board cable out of the PSU, and checked the Voltage again. = Backlight is on (no display)! Voltage on the connector is now:
1. NC
2. NC
3. OD_on/Off = 4.29V
4. NC
5. GND
6. PWM_DIM2 = 3.24V
7. B13V = 12.99V
8. PWM_DIM1 = 3.24V
9. B13V = 12.99V
10. B13V = 12.99V
11. VAMP = 12.99V
12. BLU_on/Off = 3.02V
13. VAMP = 12.99V
14. GND
15. GND
16. GND
17. B5V = 5.39V
18. A5V = 5.4V
19. B5V = 5.39V
20. Power On/Off = 3.4V

- So the main board switches the PSU off. (Power on/off signal)
I forced the PSU on with a 1k ohm resistor between PS_ON and A5V (Pull UP). Checked the Main board voltages = 3V3 = OK, 1V8 = OK
Observation: Still no standby light or powering on. Only a red LED below on the main board (OP301). And the big microcontroller is a bit warmer.

- Also tried EEPROM reset. = still no progress.

Questions:
- Is there any solution for this problem?
- What did i miss to check/measure or try?
- What does the Red LED (OP301) on the main board means?
- Does it looks like a hardware or software (dead lock etc) failure?
- If no solution, which part do i need to buy to fix my tv? Im thinking the main board, because the voltages on PSU are OK.

I hope you guys can help me with my TV. I have currently no ideas left..

Thanks a lot!

Greetings,
Martijn

PS. I have solder and electronics skill.

[dick_barton]

Re: Samsung UE32ES6100WXXN. Not working, No Standby light

What probably happend:
I was messing with the service menu, didn't change parameter.
Then somehow the menu was frozen so i disconnected the power.
Plugged in again (some sparks) and it didn't turn on.

If you were in the "service menu" then you may have inadvertently adjusted some settings. However if it was working before you went into the service menu then I cannot see any reason why a hardware fault should have occurred and think you may have corrupted the Flash memory.

[MartijnG]

Re: Samsung UE32ES6100WXXN. Not working, No Standby light

Thanks for the reply. So even with a corrupt flash memory the main board can power off the power with the power on/off signal? What do you think is the best option? Search for the flash chip on the main board and replace? Or any kind of reset?
I hope we can figure something out..

[dick_barton]

Re: Samsung UE32ES6100WXXN. Not working, No Standby light

.Unfortunately I don't know what to suggest. Perhaps others may be able to offer you further guidance.

You also say

Plugged in again (some sparks) and it didn't turn on

.
Did you see sparks and where or were the sparks at the mains plug when plugging it back in?

[MartijnG]

Re: Samsung UE32ES6100WXXN. Not working, No Standby light

Thanks for the reply again.
I hope others will help me further.

I plugged the cable out the back of the TV. Then back in (the cord had already power) the TV.
I saw some sparks when plugged in, just at the metal pins of the connector. From my experience its normal. I think it was just some conduction sparks. I don't see any sparks on the boards.

[koka0011]

Re: Samsung UE32ES6100WXXN. Not working, No Standby light

did you reflash the memory ic?

[MartijnG]

Re: Samsung UE32ES6100WXXN. Not working, No Standby light

No i didn't. How do i reflash the memory IC?

Thanks

[MartijnG]

Re: Samsung UE32ES6100WXXN. Not working, No Standby light

Is there any flash bin file for the eeprom on the Samsung BN41-01812 main board?

[bpitou]

Re: Samsung UE32ES6100WXXN. Not working, No Standby light

Hello. I have the same main board BN41-01812, but for a 46' TV samsung from 2012. When the main borad is plugged to the power supply, only a red stanby led is lighted. When I unplug the main board from the psu board, the backlight fash. So I guess that the main board is faulty. I am looking a schematic diagram of this main board in order to figure out what component has failded. Thanks you if you have a solution or any idea.
Best.

[Davi.p]

Re: Samsung UE32ES6100WXXN. Not working, No Standby light

I worry a lot when i see in this forum people that takes possession of other people thread! I have read the first post for no reason! grrrrr!