Re: vizio e420vl orange light, nothing else
i ordered it from ebay, from a suggested seller on this forum
williamjf77
Member
Last Activity: 02-22-2014, 09:36 PM
Joined: 07-22-2013
Location: gales ferry CT
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Re: vizio e420vl orange light, nothing else
alright I changed out the eeprom which is actually a flash chip and no luck. it seems like something is loading down the ps on line, when ps-on is disconnected from the header I get 3.3v on main board but as soon as I connect it to power board it drops to 1.1vLeave a comment:
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Re: smd fuses on vizio e42vl
thank youLeave a comment:
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smd fuses on vizio e42vl
i blew a smd fuse on the 5v standby power going into my main board, does anyone know what the rating should be, or a part number? the only marking i can make out is 5A. thanks -
Re: vizio e420vl orange light, nothing else
okay i will check the eeprom, its on the bottom of the main board ? right? I cant read the numbers because there is black marker writing on it. now is it an eeprom or a flash chip? I guess Ill have to get my buspirate out to sniff the spi lines.Leave a comment:
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Re: vizio e420vl orange light, nothing else
that is kind of what i suspected, thanks for the reply. i will report back after further testingLeave a comment:
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Re: vizio e420vl orange light, nothing else
okay i was doing some probing with my scope and dmm and after a little bit i tested my PS/on and I had 3.3v so I put it back together ran it for a few hours it was fine. now after being off it has the same problem. any suggestions?Leave a comment:
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Re: vizio e420vl orange light, nothing else
here are pics...Leave a comment:
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vizio e420vl orange light, nothing else
hello, my Vizio e420vl gets stand by voltage and i tested PS-on and it reads 1.1v, I unhooked PS/on from the main board with all other wires connected and PS/on reads 3.3v on main board. when i gave PS/on 3,3v with a resistor from 5v, i can hear the PS start but same 1.1v. I checked all Vregs and all seem good, except the one by the LG chip(driver I assume) but it has no input. all fuses are okay. thanks in advance if anyone can help -
Re: New Members - please post your introductions here
hello my name is will, i found this forum trying to trouble shoot a tv and im glad i found it.
i have some electronics knowledge, all self taught, mostly audio and some microcontroller experience. I'm better at making boards and soldering than my electronics knowledge but im learning. i hope i can be of a little help and not just a helpeeLeave a comment:
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