Re: Emerson LC391EM3 stuck in standby
I looked quite a long time and couldn't find the exact one for the tv, but i posted one for the 50" emerson a few posts above. it should be pretty similar...
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Re: Emerson LC391EM3 stuck in standby
Nope, i didn't see that one. I'll give them a try.
Thanks...
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Re: Emerson LC391EM3 stuck in standby
I went to my local electronics store today and they said that they don't carry the SB3A0BH or SB3100 or any schottky diodes.
I tried to find a reputable site that sales them but most of the site i found you can only buy them in bulk. I did find some on ebay but they mostly come from china or hong kong and don't even specify the manufacturer.
would anyone be able to suggest a reputable location to buy one of these diodes?
Also some sites listed the SR3100 or MBR3100 as a SB3100 schottky diode...is...
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Re: Emerson LC391EM3 stuck in standby
Hey guys, sorry it took me a while to write back, the last few week have been really busy, and i haven't had much free time to work on the TV.
So here is an update of where I'm at. So before creating this thread, i had read about an issue with the same symptoms and same model TV where the issue was the inverter, so i ordered it. Once i found this sight and did a bit more diagnostics (with all of your help) it looked like it actually wasn't the inverter. I tried to cancel the order at shopjimmy.com, but it was too late and return...
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Re: Emerson LC391EM3 stuck in standby
For the diodes, can these be tested in circuit or do they need to be out of circuit?...
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Re: Emerson LC391EM3 stuck in standby
Ok so i was able to find the service manual for an Emerson LC501EM3 / Magnavox 50MF412b/F7 which uses the same mother board.
I'll take a look at that tonight and see what kind of voltage reading I get....
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Re: Emerson LC391EM3 stuck in standby
I took all the measurements again tonight and here they are for the transformers from bottom to top.
1 - Pin 1-3 = 0.9 - Pin 2-4 = 486
2 - Pin 1-3 = 1.0 - Pin 2-4 = 496
3 - Pin 1-3 = 1.0 - Pin 2-4 = 495
4 - Pin 1-3 = 1.0 - Pin 2-4 = 493
5 - Pin 1-3 = 1.1 - Pin 2-4 = 494
6 - Pin 1-3 = 0.9 - Pin 2-4 = 497
7 - Pin 1-3 = 1.0 - Pin 2-4 = 497
8 - Pin 1-3 = 1.0 - Pin 2-4 = 494
The ccfl bulbs aren't hard wired. I posted some pics in the 1st post that show...
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Emerson LC391EM3 stuck in standby
Hi,
I was recently given an Emerson LC391EM3 that seems to stay stuck in stanby.
When I plug it in I immediately head a click (a relay i think), them the Emerson flashes up on the screen and then there is another click and the TV goes into standby. When the relay initially make the first click their is a red light that flashes on the front, then when it click the second time and goes into standby the red light stays solid.
I read this post ([url]https://www.badcaps.net/forum/showthread.php?t=41495[/url]) which seemed to describe the same symptoms, but I'm not...
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Re: emerson LC391EM3 trouble
Just wondering if you have found a solution to this. I was just given one of these TV's and it has the same problem.
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