Samsung ln-t4061f stuck in rebooting sequence

[budm]

Re: Samsung ln-t4061f stuck in rebooting sequence

You do have PS-ON (PWR ON/OFF) so all the correct Voltages are present.
So does the PS-ON Voltage go down to < 1VDC when TV goes into shutdown and goes back up by itself?
BTW, there is also anther signal (bl-on) from the main board that turns on the inverter circuit, what is the Voltage of that signal?

[engelwood39]

Re: Samsung ln-t4061f stuck in rebooting sequence

You do have PS-ON (PWR ON/OFF) so all the correct Voltages are present.
So does the PS-ON Voltage go down to < 1VDC when TV goes into shutdown and goes back up by itself?
BTW, there is also anther signal (bl-on) from the main board that turns on the inverter circuit, what is the Voltage of that signal?

It jumped down to .039V for a small fraction of a second when the relay clicked and then jumped right back up.

I am not sure where to test on the main board but I cannot find a (bl-on). I was wondering if you were wanting me to test any of these pins in the picture below?

Thanks budm!

[engelwood39]

Re: Samsung ln-t4061f stuck in rebooting sequence

Here is the update... I replaced all the caps in the power board and it is still doing the same thing (powering on froze with backlighting for a short period just to turn itself off and them back on again starting the loop sequence over again.)

Would anyone recommend trying a replacement main board. Looks like I can pick one up for about $35-$40 range.

[dskall]

Re: Samsung ln-t4061f stuck in rebooting sequence

I would try freezing eeprom and see if it will turn on.

[engelwood39]

Re: Samsung ln-t4061f stuck in rebooting sequence

I would try freezing eeprom and see if it will turn on.

Could you let me know how to do this?

[dskall]

Re: Samsung ln-t4061f stuck in rebooting sequence

Eeprom looks to be on lower right side of main chip. Can't read numbers. It should have a 24 or 25 in part number. You can try freezing with air duster turned upside down. Spray several times and see if it will turn on.

[engelwood39]

Re: Samsung ln-t4061f stuck in rebooting sequence

Eeprom looks to be on lower right side of main chip. Can't read numbers. It should have a 24 or 25 in part number. You can try freezing with air duster turned upside down. Spray several times and see if it will turn on.

I finally bought a can of canned air. I did freeze the Eeprom and it did the same thing it has been doing. Do you guys think that replacing the main board will most likely fix it? I might just go that way if it is very probable that it will fix me.

[vinceroger69]

Re: Samsung ln-t4061f stuck in rebooting sequence

i would certainly try a replacement mainboard if this was my tv just make sure you get on with a returns policy incase its faulty and try to make sure the replacement board matches your old one and the lcd panel thats used in yout tv

[engelwood39]

Re: Samsung ln-t4061f stuck in rebooting sequence

Does anyone know what all numbers I need to match to make sure I get to correct Main board?

[budm]

Re: Samsung ln-t4061f stuck in rebooting sequence

Go to shopjimmy and type in your model number, it will tell you what number to look for on the sticker.