Re: Sharp LC-70LE757U Flashing 2-5 :-( can it be saved economically?
Wow. Well I let you guys know how I make out when I get another TCON.
I think my tv has an issue with the left side drivers though.
Gotta be sure. Only get one chance!
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Re: Vizio E701i-A3 no Picture
Hello everyone.
So I picked up an e701i-a3 with sound but no pic. Got a replacement T-Con and it work for a couple of mins before going right back to blank screen no sound. Now I'm wondering if it's a bad panel blowing the T-Con or I got another T-Con in the defective range.
Pretty sure the eBay seller of the T-Con is just selling NOS boards that may have been made with the defective components. This was a ZH T-Con. Should I forget it and chalk it up to a bad panel?
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Re: Samsung corrupt mainboards
A replacement main board brought the TV back to life.
At first the picture was upside down by accessing the service manual and changing the h/v setting corrected it.
I do have another question.
Would someone be able to the TYPE setting in their un46c6300sf and tell me what it's set too?
There are a few dozen choices and I'm not sure which one is correct.
Even better would be screenshots of the default settings within the service menu.
Thanks
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Re: Samsung corrupt mainboards
My tv exhibits the following symptoms.
Powers on with remote.
Indicator light flashes and then shuts off.
No picture and the backlight does not turn on.
No longer responds to any button input from remote and touch sensor pad. But status light flashes with both.
Jumping the backlight to a 5v source does turn it on. However still no picture.
Pretty much verbatim to what lookimback described.Last edited by sleepingAwake; 08-10-2015, 08:53 PM.
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Re: Samsung corrupt mainboards
Thank you for the info everyone.
I have tried shorting sda and vcc upon turn on to get the processor to try and rewrite the eeprom on both 4256brp's.
I didn't see eEPROMs for this board available on shop jimmy.
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Re: Samsung corrupt mainboards
Bringing this back from the dead since I can't start a new thread.
Picked up a UN46c6300sf. Upon power on the relay clicks once.
BL_ON doesn't receive power but all other voltages seem correct.
Seems to mimic the corrupt eeprom issues. I tried shorting the sda line to vcc as suggested by samygo forums but hat didn't work.
Purchased another main board on eBay that was supposed to be good but all the 5.3v pins are shorted to ground. I realized it immediately as the relay starts clicking like mad the instant it's...
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Re: New Members - please post your introductions here
Hello everyone.
I've joined the site to access and possibly contribute to the vast technical knowledge the membership has created.
I've got a Samsung un46c6300sf that seems to have a bad main board and a Vizio 70 lcd that is known for TCON issues and bad panels.
While they may prove to be lost causes the experience is part of the fun.
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