Emerson LC320EM2 back lights on but no picture

[Gorrillasnot]

Re: Emerson LC320EM2 back lights on but no picture

I received my LVDS cable in the mail today. I installed it and the TV now works.

I paid $20 for the TV plus $14 for a replacement main board (since I shorted the original) and $8 for the LVDS cable.
Total invested $42 which is allot for a lower end 32' TV but worth it to me for the experience and fun of tinkering.


thank you very much everyone for all your help

[Caleb]

Re: Emerson LC320EM2 back lights on but no picture

congrats, I would consider it a win! Make sure you have it on a good surge protector the power supply on these is notorious for dieing during surges.

[high5va]

Re: Emerson LC320EM2 back lights on but no picture

I found this thread so just joined the forum as I'm having same symptoms with the backlight and sound working but no picture - just some faint vertical lines. I checked the LVDT cable continuity and all wires tested good. I've not tested any voltages, etc. yet but thinking its the T-Con board from this discussion. Is there a quick test to verify? My unit looks exactly like the pics in this thread

[Caleb]

Re: Emerson LC320EM2 back lights on but no picture

Probably your best bet is to check the tcon fuse for continuity and voltage. Do you have sound when you hook up a source? If so I would agree that it is likely the tcon.

[high5va]

Re: Emerson LC320EM2 back lights on but no picture

thanks for your feedback, Caleb. Yes I have sound when connected to source, just no pic and some faint vertical lines. I can only find one fuse and it is on the main power supply board - it has continuity so seems fine.
This tcon board is connected to screen by several thin ribbon conductors adhered to the board without plug connectors, so I assume not really replaceable? If so, I assume this one is a lost cause?

Thanks again for any feedback

[budm]

Re: Emerson LC320EM2 back lights on but no picture

There is SMD fuse on the T-CON board that you need to find out if it has DCV at both ends of the fuse with ref. to the chassis.

[Caleb]

Re: Emerson LC320EM2 back lights on but no picture

found a pic of the tcon and have put a red box around the fuse, although on this board it appears they have it labeled as and inductor.

[high5va]

Re: Emerson LC320EM2 back lights on but no picture

Thanks tons to both budm & Caleb for your guidance. However, my t-con board appears identical to the one in Gorrillasnot's photos so does not appear easily worked on (see my photo attached)
I am currently leaning towards salvaging the other boards and speakers to sell off - thoughts?

[Caleb]

Re: Emerson LC320EM2 back lights on but no picture

even though the pic you posted isnt very clear it does appear that there is a fuse just to the left of the main connector under that gold rectangle. the power board on these should sell pretty quick as they are the most common failure