emerson 32" lc320em1

[timmypeeps]

I have a emerson lc320em1 that flashes a green light the screen comes on for about 2 seconds then shuts off and the red standby light comes on. all the caps look good. If i unplug the video board the tv still flashes the green light 10 or 12 times but it stays on. Any help would be greatly appreciated.

[timmypeeps]

Re: emerson 32" lc320em1

Hello?

[ReeceyBurger123]

Re: emerson 32" lc320em1

Pictures of all the boards please and do you have a Digital multimeter ?

[AFajitas]

Re: emerson 32" lc320em1

This was actually the first TV I fixed in my foray into TV troubleshooting. Mine wasn't powering on at all. There are 4 or 5 diodes on the power supply that are notorious for going bad, could be your issue as well.

[timmypeeps]

Re: emerson 32" lc320em1

Trying to upload some pics of the boards but I keep getting a server error. I will load some by the end of the day. I do have a dmm but it's dcm it will test ac, dc, continuity and amps.

[timmypeeps]

Re: emerson 32" lc320em1

I do have 2 new boards for the tv but they are not an exact match so they don't work but I was thinking I have to good doner boards they came out of a tv with a cracked screen but they did work.

[AFajitas]

Re: emerson 32" lc320em1

Found this today, not sure if it helps.



Seems to be the same model.

[timmypeeps]

Re: emerson 32" lc320em1

Looks identical on the outside but the internals look different. It could be the same issue I will test the items he described in his article. Thanks for the help

[timmypeeps]

Re: emerson 32" lc320em1

AFAJITAS do you remember the ones that you replaced?

[timmypeeps]

Re: emerson 32" lc320em1

Still can't figure this tv out . Still turns on for 2 sec and shuts off again. Any help would be great thanks.

[nomoresonys]

Re: emerson 32" lc320em1

could be a bad capacitor.

[timmypeeps]

Re: emerson 32" lc320em1

None of the caps look bad and if any were in question I replaced them. If I disconnect a ribbon cable between the power supply and the video board it will turn on and stay on but no picture. That's the only wire I remove and it works without picture

[timmypeeps]

Re: emerson 32" lc320em1

This seams to be a common problem with this model tv. I find it hard to believe no one has figured it out

[MagicSmoke]

Re: emerson 32" lc320em1

Need pics and P/N's of your boards. I have one of these that has the PSU/Backlight inverter all in one.

There were numerous failed diodes, resistors, and a mosfet. When psu failed it damaged mainboard also.

I got lucky and found both boards from a seller on ebay.

[timmypeeps]

Re: emerson 32" lc320em1

Here's some pics of the boards

[timmypeeps]

Re: emerson 32" lc320em1

I have 2 boards from another tv but they aren't an exact match so they don't work. I was hoping to use parts on the new boards to fix the original's

[splitcrete]

Re: emerson 32" lc320em1

Check the inverter wires for shorts circled in red.

[splitcrete]

Re: emerson 32" lc320em1

Did you ohm out the inverter transformers ? May be a bad one or two...

[timmypeeps]

Re: emerson 32" lc320em1

No shorts, tested all one at a time and they all light up individually and all at the same time. I have not done an ohm test on the inverter transformers. Your talking about the black square with copper coils right.

[timmypeeps]

Re: emerson 32" lc320em1

? I think I'm right