ps50q96hd no picture

[matyka]

Re: ps50q96hd no picture

hello,I left only the main board connected to the power supply and the relay just clicks on and off and the reading on VSon : 001.2mv

The rest off the readings remains the same.

[flocko]

Re: ps50q96hd no picture

looks like main board fault as not holding PSon, you could try running test patterns on the set have you ever tried this? you would need to replace all the connections for all the boards apart for main to power board, jump PSon to ground on power board and jump test pins 3-4 on control board .When you plug the set back into main the set should show test patterns

[matyka]

Re: ps50q96hd no picture

Hi,I never tried running test patterns on any sets.
What do you mean by to replace all the connections for all the boards apart for main to power board? To connect all the boards back x,y,buffer to the power supply and leave the main?

[flocko]

Re: ps50q96hd no picture

Yes unplug main all rest plugged in, if you need help when there is no one around look on the forum search just put in "Samsung test pattern " you will find all you need to know

[matyka]

Re: ps50q96hd no picture

I have done the test pattern ,do you have to get a picture on the screen or something ?

What I have is just like a backlight all around the screen.

[matyka]

Re: ps50q96hd no picture

I checked again and the pin you have to short are 5 /6
And I got the test pattern and all looks good .
This mean the power supply,x,y,buffers and control board are ok and I need another main board ?

[flocko]

Re: ps50q96hd no picture

sorry I should have looked to see what control board was fitted to your set ,normally its pin 3+4 or hole 3+4. When you look for a main board you need to match the BN94-XXXXX this is the part number that you will find on the bar code sticker , do not go by the BN41-XXXXX as this is the bare board number and can be loaded with any components for any model Let us know when you have it fixed Flocko

[matyka]

Re: ps50q96hd no picture

Thank you flocko !!!

I received the main board (BN94-01177B on ebay for £23 incl postage)this morning and another tv fixed ))

I realised the side HDMI connection is not working and is connected to the main board and keeps restarting the set ,I left it unplugged and tv is working properly.

[flocko]

Re: ps50q96hd no picture

Good job. Check the side HDMI socket kids like to poke things in them, had a few on here that have had coins pushed in them Flocko